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A Fixed View of Hurricane Je …
Title A Fixed View of Hurricane Jeanne's Progression
Abstract After days of hammering Haiti, Hurricane Jeanne heads towards the United States.
Completed 2004-09-24
A Fixed View of Hurricane Je …
Title A Fixed View of Hurricane Jeanne's Progression
Abstract After days of hammering Haiti, Hurricane Jeanne heads towards the United States.
Completed 2004-09-24
A Fixed View of Hurricane Je …
Title A Fixed View of Hurricane Jeanne's Progression
Abstract After days of hammering Haiti, Hurricane Jeanne heads towards the United States.
Completed 2004-09-24
National Map Showing Habitat …
Title National Map Showing Habitat Suitability for Tamarisk Invasion
Abstract The spread of invasive species is one of the most daunting environmental, economic, and human-health problems facing the United States and the World today. It is one of several grand challenge environmental problems being addressed by NASA's Science Mission Directorate through a national application partnership with the US Geological Survey. NASA and USGS are working together to develop a National Invasive Species Forecasting System (ISFS) for the management and control of invasive species on Department of Interior and adjacent lands. The system provides a framework for using USGS's early detection and monitoring protocols and predictive models to process MODIS, ETM+, ASTER and commercial remote sensing data, to create on-demand, regional-scale assessments of invasive species likely habitats. Recent work on the Invasive Species Forecasting System (ISFS) project has shown the importance of remotely-sensed time-series data in geostatistical models for mapping the distribution of Tamarisk and other invasive plant species. This video shows the habitat suitability for a Tamarisk invasion in the continental United States. Red indicates areas that are highly suitable and yellow indicates areas which are less suitable. Texas, New Mexico, and Nevada are the most highly suitable states. Utah and Arizona have the next greatest risk. California, Arizona, Montana, Colorado, Oregon, Ohio, Wyoming, and Florida also have a significant risk.
Completed 2005-10-18
National Map Showing Habitat …
Title National Map Showing Habitat Suitability for Tamarisk Invasion
Abstract The spread of invasive species is one of the most daunting environmental, economic, and human-health problems facing the United States and the World today. It is one of several grand challenge environmental problems being addressed by NASA's Science Mission Directorate through a national application partnership with the US Geological Survey. NASA and USGS are working together to develop a National Invasive Species Forecasting System (ISFS) for the management and control of invasive species on Department of Interior and adjacent lands. The system provides a framework for using USGS's early detection and monitoring protocols and predictive models to process MODIS, ETM+, ASTER and commercial remote sensing data, to create on-demand, regional-scale assessments of invasive species likely habitats. Recent work on the Invasive Species Forecasting System (ISFS) project has shown the importance of remotely-sensed time-series data in geostatistical models for mapping the distribution of Tamarisk and other invasive plant species. This video shows the habitat suitability for a Tamarisk invasion in the continental United States. Red indicates areas that are highly suitable and yellow indicates areas which are less suitable. Texas, New Mexico, and Nevada are the most highly suitable states. Utah and Arizona have the next greatest risk. California, Arizona, Montana, Colorado, Oregon, Ohio, Wyoming, and Florida also have a significant risk.
Completed 2005-10-18
National Map Showing Habitat …
Title National Map Showing Habitat Suitability for Tamarisk Invasion
Abstract The spread of invasive species is one of the most daunting environmental, economic, and human-health problems facing the United States and the World today. It is one of several grand challenge environmental problems being addressed by NASA's Science Mission Directorate through a national application partnership with the US Geological Survey. NASA and USGS are working together to develop a National Invasive Species Forecasting System (ISFS) for the management and control of invasive species on Department of Interior and adjacent lands. The system provides a framework for using USGS's early detection and monitoring protocols and predictive models to process MODIS, ETM+, ASTER and commercial remote sensing data, to create on-demand, regional-scale assessments of invasive species likely habitats. Recent work on the Invasive Species Forecasting System (ISFS) project has shown the importance of remotely-sensed time-series data in geostatistical models for mapping the distribution of Tamarisk and other invasive plant species. This video shows the habitat suitability for a Tamarisk invasion in the continental United States. Red indicates areas that are highly suitable and yellow indicates areas which are less suitable. Texas, New Mexico, and Nevada are the most highly suitable states. Utah and Arizona have the next greatest risk. California, Arizona, Montana, Colorado, Oregon, Ohio, Wyoming, and Florida also have a significant risk.
Completed 2005-10-18
National Map Showing Habitat …
Title National Map Showing Habitat Suitability for Tamarisk Invasion
Abstract The spread of invasive species is one of the most daunting environmental, economic, and human-health problems facing the United States and the World today. It is one of several grand challenge environmental problems being addressed by NASA's Science Mission Directorate through a national application partnership with the US Geological Survey. NASA and USGS are working together to develop a National Invasive Species Forecasting System (ISFS) for the management and control of invasive species on Department of Interior and adjacent lands. The system provides a framework for using USGS's early detection and monitoring protocols and predictive models to process MODIS, ETM+, ASTER and commercial remote sensing data, to create on-demand, regional-scale assessments of invasive species likely habitats. Recent work on the Invasive Species Forecasting System (ISFS) project has shown the importance of remotely-sensed time-series data in geostatistical models for mapping the distribution of Tamarisk and other invasive plant species. This video shows the habitat suitability for a Tamarisk invasion in the continental United States. Red indicates areas that are highly suitable and yellow indicates areas which are less suitable. Texas, New Mexico, and Nevada are the most highly suitable states. Utah and Arizona have the next greatest risk. California, Arizona, Montana, Colorado, Oregon, Ohio, Wyoming, and Florida also have a significant risk.
Completed 2005-10-18
National Map Showing Habitat …
Title National Map Showing Habitat Suitability for Tamarisk Invasion
Abstract The spread of invasive species is one of the most daunting environmental, economic, and human-health problems facing the United States and the World today. It is one of several grand challenge environmental problems being addressed by NASA's Science Mission Directorate through a national application partnership with the US Geological Survey. NASA and USGS are working together to develop a National Invasive Species Forecasting System (ISFS) for the management and control of invasive species on Department of Interior and adjacent lands. The system provides a framework for using USGS's early detection and monitoring protocols and predictive models to process MODIS, ETM+, ASTER and commercial remote sensing data, to create on-demand, regional-scale assessments of invasive species likely habitats. Recent work on the Invasive Species Forecasting System (ISFS) project has shown the importance of remotely-sensed time-series data in geostatistical models for mapping the distribution of Tamarisk and other invasive plant species. This video shows the habitat suitability for a Tamarisk invasion in the continental United States. Red indicates areas that are highly suitable and yellow indicates areas which are less suitable. Texas, New Mexico, and Nevada are the most highly suitable states. Utah and Arizona have the next greatest risk. California, Arizona, Montana, Colorado, Oregon, Ohio, Wyoming, and Florida also have a significant risk.
Completed 2005-10-18
Creating the Tamarisk Habita …
Title Creating the Tamarisk Habitat Suitability Map (for Science Presentations)
Abstract The spread of invasive species is one of the most daunting environmental, economic, and human-health problems facing the United States and the World today. It is one of several grand challenge environmental problems being addressed by NASA's Science Mission Directorate through a national application partnership with the US Geological Survey. NASA and USGS are working together to develop a National Invasive Species Forecasting System (ISFS) for the management and control of invasive species on Department of Interior and adjacent lands. The system provides a framework for using USGS's early detection and monitoring protocols and predictive models to process MODIS, ETM+, ASTER, and commercial remote sensing data, and create on-demand, regional-scale assessments of invasive species patterns and vulnerable habitats. The first step in this process is to collect relevant satellite data which can then be used to derive a Tamarisk Habitat Suitability Map. By combining daily Normalized Differential Vegetation Index (NDVI), daily Enhanced Vegetation Index (EVI), and MODIS Landcover Classification data the likely Tamarisk habitat suitability map can be derived.
Completed 2006-01-19
Creating the Tamarisk Habita …
Title Creating the Tamarisk Habitat Suitability Map (for Science Presentations)
Abstract The spread of invasive species is one of the most daunting environmental, economic, and human-health problems facing the United States and the World today. It is one of several grand challenge environmental problems being addressed by NASA's Science Mission Directorate through a national application partnership with the US Geological Survey. NASA and USGS are working together to develop a National Invasive Species Forecasting System (ISFS) for the management and control of invasive species on Department of Interior and adjacent lands. The system provides a framework for using USGS's early detection and monitoring protocols and predictive models to process MODIS, ETM+, ASTER, and commercial remote sensing data, and create on-demand, regional-scale assessments of invasive species patterns and vulnerable habitats. The first step in this process is to collect relevant satellite data which can then be used to derive a Tamarisk Habitat Suitability Map. By combining daily Normalized Differential Vegetation Index (NDVI), daily Enhanced Vegetation Index (EVI), and MODIS Landcover Classification data the likely Tamarisk habitat suitability map can be derived.
Completed 2006-01-19
Creating the Tamarisk Habita …
Title Creating the Tamarisk Habitat Suitability Map (for Science Presentations)
Abstract The spread of invasive species is one of the most daunting environmental, economic, and human-health problems facing the United States and the World today. It is one of several grand challenge environmental problems being addressed by NASA's Science Mission Directorate through a national application partnership with the US Geological Survey. NASA and USGS are working together to develop a National Invasive Species Forecasting System (ISFS) for the management and control of invasive species on Department of Interior and adjacent lands. The system provides a framework for using USGS's early detection and monitoring protocols and predictive models to process MODIS, ETM+, ASTER, and commercial remote sensing data, and create on-demand, regional-scale assessments of invasive species patterns and vulnerable habitats. The first step in this process is to collect relevant satellite data which can then be used to derive a Tamarisk Habitat Suitability Map. By combining daily Normalized Differential Vegetation Index (NDVI), daily Enhanced Vegetation Index (EVI), and MODIS Landcover Classification data the likely Tamarisk habitat suitability map can be derived.
Completed 2006-01-19
Creating the Tamarisk Habita …
Title Creating the Tamarisk Habitat Suitability Map (for Science Presentations)
Abstract The spread of invasive species is one of the most daunting environmental, economic, and human-health problems facing the United States and the World today. It is one of several grand challenge environmental problems being addressed by NASA's Science Mission Directorate through a national application partnership with the US Geological Survey. NASA and USGS are working together to develop a National Invasive Species Forecasting System (ISFS) for the management and control of invasive species on Department of Interior and adjacent lands. The system provides a framework for using USGS's early detection and monitoring protocols and predictive models to process MODIS, ETM+, ASTER, and commercial remote sensing data, and create on-demand, regional-scale assessments of invasive species patterns and vulnerable habitats. The first step in this process is to collect relevant satellite data which can then be used to derive a Tamarisk Habitat Suitability Map. By combining daily Normalized Differential Vegetation Index (NDVI), daily Enhanced Vegetation Index (EVI), and MODIS Landcover Classification data the likely Tamarisk habitat suitability map can be derived.
Completed 2006-01-19
Hurricane Ivan Progression a …
Title Hurricane Ivan Progression as seen by MODIS September 9-14, 2004
Abstract Hurricane Ivan barrels across the Carribean and heads toward the United States Gulf Coast.
Completed 2004-09-15
Hurricane Ivan Progression a …
Title Hurricane Ivan Progression as seen by MODIS September 9-14, 2004
Abstract Hurricane Ivan barrels across the Carribean and heads toward the United States Gulf Coast.
Completed 2004-09-15
Hurricane Ivan Progression a …
Title Hurricane Ivan Progression as seen by MODIS September 9-14, 2004
Abstract Hurricane Ivan barrels across the Carribean and heads toward the United States Gulf Coast.
Completed 2004-09-15
Hurricane Ivan Progression a …
Title Hurricane Ivan Progression as seen by MODIS September 9-14, 2004
Abstract Hurricane Ivan barrels across the Carribean and heads toward the United States Gulf Coast.
Completed 2004-09-15
Hurricane Ivan Progression a …
Title Hurricane Ivan Progression as seen by MODIS September 9-14, 2004
Abstract Hurricane Ivan barrels across the Carribean and heads toward the United States Gulf Coast.
Completed 2004-09-15
Hurricane Ivan Progression a …
Title Hurricane Ivan Progression as seen by MODIS September 9-14, 2004
Abstract Hurricane Ivan barrels across the Carribean and heads toward the United States Gulf Coast.
Completed 2004-09-15
Hurricane Ivan Progression a …
Title Hurricane Ivan Progression as seen by MODIS September 9-14, 2004
Abstract Hurricane Ivan barrels across the Carribean and heads toward the United States Gulf Coast.
Completed 2004-09-15
Hurricane Ivan Progression a …
Title Hurricane Ivan Progression as seen by MODIS September 9-14, 2004
Abstract Hurricane Ivan barrels across the Carribean and heads toward the United States Gulf Coast.
Completed 2004-09-15
Hurricane Ivan Progression a …
Title Hurricane Ivan Progression as seen by MODIS September 9-14, 2004
Abstract Hurricane Ivan barrels across the Carribean and heads toward the United States Gulf Coast.
Completed 2004-09-15
Progression of Hurricane Cha …
Title Progression of Hurricane Charley, 2004 (WMS)
Abstract Hurricane Charley was the first of four hurricanes to hit the United States in 2004.
Completed 2005-05-09
Progression of Hurricane Cha …
Title Progression of Hurricane Charley, 2004 (WMS)
Abstract Hurricane Charley was the first of four hurricanes to hit the United States in 2004.
Completed 2005-05-09
Progression of Hurricane Cha …
Title Progression of Hurricane Charley, 2004 (WMS)
Abstract Hurricane Charley was the first of four hurricanes to hit the United States in 2004.
Completed 2005-05-09
Progression of Hurricane Cha …
Title Progression of Hurricane Charley, 2004 (WMS)
Abstract Hurricane Charley was the first of four hurricanes to hit the United States in 2004.
Completed 2005-05-09
Deriving the Tamarisk Suitab …
Title Deriving the Tamarisk Suitability Map: The Complete Story
Abstract The spread of invasive species is one of the most daunting environmental, economic, and human-health problems facing the United States and the World today. It is one of several grand challenge environmental problems being addressed by NASA's Science Mission Directorate through a national application partnership with the US Geological Survey. NASA and USGS are working together to develop a National Invasive Species Forecasting System (ISFS) for the management and control of invasive species on Department of Interior and adjacent lands. The system provides a framework for using USGS's early detection and monitoring protocols and predictive models to process MODIS, ETM+, ASTER and commercial remote sensing data. It can also be used to create on-demand, regional-scale assessments of invasive species patterns and vulnerable habitats. Tamarisk (Salt Ceder) is an invasive plant that typically grows near water and crowds out native species. Tamarisk reflective properties differ from those of its neighboring vegetation throughout the annual life cycle. These different reflective properties can be seen by the naked eye (as in the accompanying seasonal photographs), and can also be seen by satellite sensors. Current Tamarisk infestations and suitable habitats for future growth can be derived from various datasets, including EVI, NDVI, and land cover classifications.
Completed 2006-01-19
Deriving the Tamarisk Suitab …
Title Deriving the Tamarisk Suitability Map: The Complete Story
Abstract The spread of invasive species is one of the most daunting environmental, economic, and human-health problems facing the United States and the World today. It is one of several grand challenge environmental problems being addressed by NASA's Science Mission Directorate through a national application partnership with the US Geological Survey. NASA and USGS are working together to develop a National Invasive Species Forecasting System (ISFS) for the management and control of invasive species on Department of Interior and adjacent lands. The system provides a framework for using USGS's early detection and monitoring protocols and predictive models to process MODIS, ETM+, ASTER and commercial remote sensing data. It can also be used to create on-demand, regional-scale assessments of invasive species patterns and vulnerable habitats. Tamarisk (Salt Ceder) is an invasive plant that typically grows near water and crowds out native species. Tamarisk reflective properties differ from those of its neighboring vegetation throughout the annual life cycle. These different reflective properties can be seen by the naked eye (as in the accompanying seasonal photographs), and can also be seen by satellite sensors. Current Tamarisk infestations and suitable habitats for future growth can be derived from various datasets, including EVI, NDVI, and land cover classifications.
Completed 2006-01-19
Deriving the Tamarisk Suitab …
Title Deriving the Tamarisk Suitability Map: The Complete Story
Abstract The spread of invasive species is one of the most daunting environmental, economic, and human-health problems facing the United States and the World today. It is one of several grand challenge environmental problems being addressed by NASA's Science Mission Directorate through a national application partnership with the US Geological Survey. NASA and USGS are working together to develop a National Invasive Species Forecasting System (ISFS) for the management and control of invasive species on Department of Interior and adjacent lands. The system provides a framework for using USGS's early detection and monitoring protocols and predictive models to process MODIS, ETM+, ASTER and commercial remote sensing data. It can also be used to create on-demand, regional-scale assessments of invasive species patterns and vulnerable habitats. Tamarisk (Salt Ceder) is an invasive plant that typically grows near water and crowds out native species. Tamarisk reflective properties differ from those of its neighboring vegetation throughout the annual life cycle. These different reflective properties can be seen by the naked eye (as in the accompanying seasonal photographs), and can also be seen by satellite sensors. Current Tamarisk infestations and suitable habitats for future growth can be derived from various datasets, including EVI, NDVI, and land cover classifications.
Completed 2006-01-19
Floods in the Midwestern Uni …
Title Floods in the Midwestern United States
Description The rivers of northwestern Missouri were still swollen in the wake of intense spring storms when the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Terra [ http://terra.nasa.gov/ ] satellite captured the top image on May 10, 2007. The image is made from a combination of infrared and visible light to make the floods more visible than they would be in a photo-like image. In this type of image, water is dark blue or black, clouds are light blue and white, plant-covered land is bright green, and bare earth is pink-tinted tan. Fires are outlined with red boxes. The Missouri River runs along the left edge of the image, then curves east along the bottom of the image. Though the most flooded regions were covered in clouds, a few breaks reveal that the Missouri was swollen far beyond its banks. Nestled in a bend in the river near the Nebraska, Kansas, and Missouri border is the town of Big Lake. The image shows that the river's curve has turned into a broad lake. The town was completely submerged in the flood when levees along the river broke, reported the Associated Press. [ http://www.cnn.com/2007/WEATHER/05/11/missouri.flooding.ap/index.html ] Beyond Big Lake, many communities along the Grand and the Platte Rivers and their tributaries have also been flooded or threatened by floods. All of these rivers are clearly running high in the image. MODIS captured the lower image on April 29, 2007, not quite a week before the rains began. By providing a clear view of normal water levels, the image illustrates just how extensively the rivers were flooded on May 10. Photo-like versions of both the April 29 [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?USA3/2007119/USA3.2007119.aqua ] and May 10 [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?USA3/2007130/USA3.2007130.terra ] images are available from the MODIS Rapid Response System. NASA images courtesy the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC.
Floods in the Midwestern Uni …
Title Floods in the Midwestern United States
Description The rivers of northwestern Missouri were still swollen in the wake of intense spring storms when the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Terra [ http://terra.nasa.gov/ ] satellite captured the top image on May 10, 2007. The image is made from a combination of infrared and visible light to make the floods more visible than they would be in a photo-like image. In this type of image, water is dark blue or black, clouds are light blue and white, plant-covered land is bright green, and bare earth is pink-tinted tan. Fires are outlined with red boxes. The Missouri River runs along the left edge of the image, then curves east along the bottom of the image. Though the most flooded regions were covered in clouds, a few breaks reveal that the Missouri was swollen far beyond its banks. Nestled in a bend in the river near the Nebraska, Kansas, and Missouri border is the town of Big Lake. The image shows that the river's curve has turned into a broad lake. The town was completely submerged in the flood when levees along the river broke, reported the Associated Press. [ http://www.cnn.com/2007/WEATHER/05/11/missouri.flooding.ap/index.html ] Beyond Big Lake, many communities along the Grand and the Platte Rivers and their tributaries have also been flooded or threatened by floods. All of these rivers are clearly running high in the image. MODIS captured the lower image on April 29, 2007, not quite a week before the rains began. By providing a clear view of normal water levels, the image illustrates just how extensively the rivers were flooded on May 10. Photo-like versions of both the April 29 [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?USA3/2007119/USA3.2007119.aqua ] and May 10 [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?USA3/2007130/USA3.2007130.terra ] images are available from the MODIS Rapid Response System. NASA images courtesy the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC.
Gobi Dust Storm
Title Gobi Dust Storm
Description In early and mid-April 2006, waves of dust washed out of the Gobi Desert and spread across eastern China, the Korean Peninsula, and Japan. According to news reports, a dust storm that hit South Korea [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=13484 ] over the weekend of April 8 was the worst the country had seen in four years. This pair of images shows a massive wave of dust that blew out of deserts in north-central China on April 10, 2006. The top image, captured by the Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov ] on NASA's Terra [ http://terra.nasa.gov ] on April 7, 2006, shows the landscape of north-central China, including two large, sandy deserts that are part of the Gobi Desert region. Just a few days later, an image from the MODIS sensor on the Aqua [ http://aqua.nasa.gov ] satellite shows that the area was completely hidden by a wave of bright dust that reached beyond the Yellow River. Gobi dust is whipped eastward with prevailing winds by spring storms and can spread all the way to the United States. The storms can be hazardous to public health both in terms of air quality and visibility. In addition, the dust storms can devastate croplands and contaminate sensitive electronic equipment. Dust storms in China are on the rise, probably as a result of land degradation, such as deforestation and overgrazing, and drought. The Chinese government has undertaken a large reforestation effort to combat the spread of deserts and to mitigate the effects of dust storms, particularly around urban areas such as Beijing. The large images above are provided at MODIS' maximum spatial resolution (level of detail) of 250 meters per pixel. The MODIS Rapid Response Team provides daily images [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?FAS_China3 ] of this area of China in a variety of formats and resolutions. NASA images courtesy the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC.
Gobi Dust Storm
Title Gobi Dust Storm
Description In early and mid-April 2006, waves of dust washed out of the Gobi Desert and spread across eastern China, the Korean Peninsula, and Japan. According to news reports, a dust storm that hit South Korea [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=13484 ] over the weekend of April 8 was the worst the country had seen in four years. This pair of images shows a massive wave of dust that blew out of deserts in north-central China on April 10, 2006. The top image, captured by the Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov ] on NASA's Terra [ http://terra.nasa.gov ] on April 7, 2006, shows the landscape of north-central China, including two large, sandy deserts that are part of the Gobi Desert region. Just a few days later, an image from the MODIS sensor on the Aqua [ http://aqua.nasa.gov ] satellite shows that the area was completely hidden by a wave of bright dust that reached beyond the Yellow River. Gobi dust is whipped eastward with prevailing winds by spring storms and can spread all the way to the United States. The storms can be hazardous to public health both in terms of air quality and visibility. In addition, the dust storms can devastate croplands and contaminate sensitive electronic equipment. Dust storms in China are on the rise, probably as a result of land degradation, such as deforestation and overgrazing, and drought. The Chinese government has undertaken a large reforestation effort to combat the spread of deserts and to mitigate the effects of dust storms, particularly around urban areas such as Beijing. The large images above are provided at MODIS' maximum spatial resolution (level of detail) of 250 meters per pixel. The MODIS Rapid Response Team provides daily images [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?FAS_China3 ] of this area of China in a variety of formats and resolutions. NASA images courtesy the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC.
Hurricane Katrina Floods the …
Title Hurricane Katrina Floods the Southeastern United States
Description Though still a weak hurricane at the time, Hurricane Katrina dumped heavy rain on the southern tip of Florida on August 25 and August 26, 2005. On August 28, a few clouds lingered over Florida, but the storm had moved away to reveal extensive flooding. These false-color images were taken by the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Aqua [ http://aqua.nasa.gov/ ] and Terra [ http://terra.nasa.gov/ ] satellites. In this color combination, water appears black, vegetation appears bright green, and clouds are pale blue and white. The most visible flooding is in Everglades National Park. The park's boundaries are clearly visible in the lower image, taken on August 8, 2005. The northeastern boundary of the park is defined by a bright green line formed by the Highway 41 corridor. On the east side of the peninsula, the land is a lighter green where the water has been drained away and the land cultivated. Numerous cities, including Miami, dot the landscape with patches of cement-colored gray. Everglades National Park surrounds the developed land to the south and west and is defined by the deeper green of native vegetation and swampland. On August 28, top, water filled much of the park, but there is little sign of flooding to the east. Extensive flooding was reported in southeastern Florida, but it is not visible in this image. The effects of Hurricane Katrina on the ocean are clear. As the storm passed, its rains and wind churned the ocean, bringing clouds of sediment to the surface. This sludge from the ocean floor colors the water an electric blue in the top image. The large images provided above are at MODIS' maximum resolution of 250 meters per pixel. The MODIS Rapid Response Team provides daily images in additional resolutions [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?USA8 ]. NASA images courtesy the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC.
Hurricane Katrina Floods the …
Title Hurricane Katrina Floods the Southeastern United States
Description Though still a weak hurricane at the time, Hurricane Katrina dumped heavy rain on the southern tip of Florida on August 25 and August 26, 2005. On August 28, a few clouds lingered over Florida, but the storm had moved away to reveal extensive flooding. These false-color images were taken by the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Aqua [ http://aqua.nasa.gov/ ] and Terra [ http://terra.nasa.gov/ ] satellites. In this color combination, water appears black, vegetation appears bright green, and clouds are pale blue and white. The most visible flooding is in Everglades National Park. The park's boundaries are clearly visible in the lower image, taken on August 8, 2005. The northeastern boundary of the park is defined by a bright green line formed by the Highway 41 corridor. On the east side of the peninsula, the land is a lighter green where the water has been drained away and the land cultivated. Numerous cities, including Miami, dot the landscape with patches of cement-colored gray. Everglades National Park surrounds the developed land to the south and west and is defined by the deeper green of native vegetation and swampland. On August 28, top, water filled much of the park, but there is little sign of flooding to the east. Extensive flooding was reported in southeastern Florida, but it is not visible in this image. The effects of Hurricane Katrina on the ocean are clear. As the storm passed, its rains and wind churned the ocean, bringing clouds of sediment to the surface. This sludge from the ocean floor colors the water an electric blue in the top image. The large images provided above are at MODIS' maximum resolution of 250 meters per pixel. The MODIS Rapid Response Team provides daily images in additional resolutions [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?USA8 ]. NASA images courtesy the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC.
Hurricane Katrina Floods the …
Title Hurricane Katrina Floods the Southeastern United States
Description Though still a weak hurricane at the time, Hurricane Katrina dumped heavy rain on the southern tip of Florida on August 25 and August 26, 2005. On August 28, a few clouds lingered over Florida, but the storm had moved away to reveal extensive flooding. These false-color images were taken by the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Aqua [ http://aqua.nasa.gov/ ] and Terra [ http://terra.nasa.gov/ ] satellites. In this color combination, water appears black, vegetation appears bright green, and clouds are pale blue and white. The most visible flooding is in Everglades National Park. The park's boundaries are clearly visible in the lower image, taken on August 8, 2005. The northeastern boundary of the park is defined by a bright green line formed by the Highway 41 corridor. On the east side of the peninsula, the land is a lighter green where the water has been drained away and the land cultivated. Numerous cities, including Miami, dot the landscape with patches of cement-colored gray. Everglades National Park surrounds the developed land to the south and west and is defined by the deeper green of native vegetation and swampland. On August 28, top, water filled much of the park, but there is little sign of flooding to the east. Extensive flooding was reported in southeastern Florida, but it is not visible in this image. The effects of Hurricane Katrina on the ocean are clear. As the storm passed, its rains and wind churned the ocean, bringing clouds of sediment to the surface. This sludge from the ocean floor colors the water an electric blue in the top image. The large images provided above are at MODIS' maximum resolution of 250 meters per pixel. The MODIS Rapid Response Team provides daily images in additional resolutions [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?USA8 ]. NASA images courtesy the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC.
Fires Across the United Stat …
Title Fires Across the United States
Description This expansive image of the United States was captured by the Moderate Resolution Imaging Spectroradiometers (MODIS) on NASA?s Terra and Aqua satellites. The left hand portion of the image comes from Aqua MODIS observations captured on the afternoon of October 22, 2003, while the right hand part of the image is from Terra MODIS observations captured a few hours earlier. Several geographic regions are experiencing fires, which were detected by the sensors and are marked with red dots. At upper left, fires are still burning across the Northern Rockies, the highest concentration is in Idaho, with additional fires in Montana to its east, and southeastern Washington and northeastern Oregon, to the west. In the Southwest, fires are burning in southern California near Los Angeles (gray patch right at edge of image to the north of the Baja Peninsula), as well as in the arc of mountains running through Arizona. At top center, fires are scattered across the northern Great Plains, from North Dakota and across the United States? border into Canada. Far to the south, dozens more fires are burning in the Mississippi River Valley in Mississippi (against right edge), Louisiana (to the west) and Arkansas (north of Louisiana). The high-resolution image provided above is 2 kilometers per pixel. The MODIS Rapid Response System provides this image at MODIS? maximum spatial resolution of 250 meters. Image courtesy Jeff Schmaltz, MODIS Rapid Response Team, NASA GSFC
Fires Across the United Stat …
Title Fires Across the United States
Description This expansive image of the United States was captured by the Moderate Resolution Imaging Spectroradiometers (MODIS) on NASA?s Terra and Aqua satellites. The left hand portion of the image comes from Aqua MODIS observations captured on the afternoon of October 22, 2003, while the right hand part of the image is from Terra MODIS observations captured a few hours earlier. Several geographic regions are experiencing fires, which were detected by the sensors and are marked with red dots. At upper left, fires are still burning across the Northern Rockies, the highest concentration is in Idaho, with additional fires in Montana to its east, and southeastern Washington and northeastern Oregon, to the west. In the Southwest, fires are burning in southern California near Los Angeles (gray patch right at edge of image to the north of the Baja Peninsula), as well as in the arc of mountains running through Arizona. At top center, fires are scattered across the northern Great Plains, from North Dakota and across the United States? border into Canada. Far to the south, dozens more fires are burning in the Mississippi River Valley in Mississippi (against right edge), Louisiana (to the west) and Arkansas (north of Louisiana). The high-resolution image provided above is 2 kilometers per pixel. The MODIS Rapid Response System provides this image at MODIS? maximum spatial resolution of 250 meters. Image courtesy Jeff Schmaltz, MODIS Rapid Response Team, NASA GSFC
Fires and Thick Smoke over S …
Title Fires and Thick Smoke over South America
Description The skies over the heart of South America were thick with the smoke from thousands of fires on September 9, 2007. In this image from the Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov ] on NASA's Aqua [ http://aqua.nasa.gov ], challenging for scientists to say what the overall effect of smoke on clouds and rainfall is. NASA's Terra [ http://terra.nasa.gov ] and Aqua [ http://aqua.nasa.gov ] satellites each have a MODIS sensor capable of detecting fires and mapping the extent of smoke aerosols on a daily basis. Scientists from around the world are using these data to advance our understanding of how natural and human-caused fires are changing our planet. NASA image created by Jesse Allen, using data provided courtesy of the MODIS Rapid Response [ http://rapidfire.sci.gsfc.nasa.gov/ ] team., satellite, locations where the sensor detected actively burning fires are marked with red dots. The skies are flooded with smoke, which pools along the eastern foothills of the Andes Mountains for thousands of kilometers. (North-to-south this image covers 3,050 kilometers, if we laid it over a map of the central United States, it would spill over the borders into both Canada and the Gulf of Mexico for at least a hundred kilometers in both directions.) Although naturally occurring fires are not uncommon in the drier forests and grasslands of South America, this type of intense, continent-spanning fire activity is almost certainly a product of human activities. Some fires are intentional, set by people to clear forest, savannas, and grasslands for ranching or farming. Other fires occur accidentally from human activities. Landscapes that have been disturbed by logging, fragmentation, or previous accidental fire are more prone to catch fire accidentally. In these situations, planned fires (such as brush clearing fires on already cleared land) can easily get out of control and invade other areas, especially during drought years. The image spans a variety of ecological regions. The top of the scene, including Peru, northern Bolivia, and western Brazil is home to the southernmost portions of the Amazon Rainforest. These wetter forests give way to the south to drier forests and more open woodlands in southern Bolivia, northwestern Paraguay and northern Argentina east of the Andes, this area is called the Chaco. In Uruguay and southern Brazil, the natural vegetation is savannas and grasslands. Even in ecosystems where fires occur naturally (the Chaco, savannas, and grasslands), human activities may change the frequency and intensity of fires. The number and different kinds of plants and animals may change as a result. And in the Amazon, naturally occurring fire was historically very rare, and trees and other plants have no real adaptations to fire. Fires in the rainforest have the potential to completely transform the Southern Amazon forests into a savanna. Fires influence not only the land surface, but the atmosphere as well. Research suggests that the impacts of smoke on the tropical atmosphere vary from place to place, season to season, and year to year. Studies have shown smoke reducing cloudiness over the Amazon itself, but not over the nearby ocean and not every year. The net impact on rainfall is also uncertain. Smoke particles suppress cloud formation by providing an over-abundance of condensation sites for water vapor. The water vapor spreads out over these particles, and it takes the cloud droplets longer to get big enough to fall as rain. The flip side, however, is that the smaller, lighter cloud droplets can rise much higher into the atmosphere, which ultimately invigorates updrafts, intensifies thunderstorms, and produces large hail and heavy rain. The competing effects in different areas and weather conditions make it extremely
Fires in Idaho and Eastern O …
Title Fires in Idaho and Eastern Oregon
Description MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC, Strong winds fanned wildfires across the western United States on July 19, 2007. The hot, dry, windy conditions led the National Interagency Fire Center to move to a National Preparedness Level [ http://www.nifc.gov/fireinfo/pl_desc.html ] of 5 on a five-point scale, indicating that the fires were numerous, large, and widespread enough to potentially exhaust fire-fighting resources. More than a million acres were burning across the United States in 72 large wildfires on July 19, 2007, said the National Interagency Fire Center. [ http://www.nifc.gov/fire_info/nfn.htm ] Among the largest fires were the Rowland and Elk Mountain fires burning in southwestern Idaho. The active fronts of these fires are outlined in red in this pair of photo-like images acquired by the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on July 19, 2007. The top image was taken at 12:25 p.m., Mountain Daylight Time, when the MODIS on NASA's Terra [ http://terra.nasa.gov/ ] satellite passed over head. The active parts of the Elk Mountain fire surround a dark brown oval of charred land. The fast-moving flames had consumed much of this area in the previous 24 hours. A MODIS image taken on the afternoon of July 18, [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=14396 ] reveals that the fire had been relatively small the previous day, and little land around the fire was charred. The Rowland fire, by contrast, was smaller on July 19 than it had been on July 18. At 2:05 p.m. on July 19, less than two hours after the top image was taken, the MODIS sensor aboard NASA's Aqua [ http://aqua.nasa.gov/ ] satellite captured the lower image. In the two-hour period between images, winds and fire activity picked up substantially. By the time of the second image, the fires were racing through grass and sagebrush and pumping out dense plumes of smoke. The smoke obscures the burned land and the surrounding desert landscape. Strong winds were pulling the smoke north in long plumes that stretch over the green and gold Snake River Plain. The National Interagency Fire Center (NIFC) reported that both the Rowland and Elk Mountain fires exhibited extreme fire behavior, [ http://www.nifc.gov/fireinfo/glossary.html#E ] with fast-moving or unpredictable flames, and that it threatened structures and power lines. On July 20, the Rowland fire had burned 95,000 acres and was 15 percent contained, while the Elk Mountain fire had burned 160,000 acres (up from 25,000 acres the day before) and was 10 percent contained, said NIFC. The large images provided above are at MODIS' maximum resolution (level of detail) of 250 meters per pixel. They stretch south to include much of Nevada and Utah. Both the 12:25 and 2:05 images are available in a variety of resolutions from the MODIS Rapid Response System. Images courtesy Jeff Schmaltz,
Fires in Idaho and Eastern O …
Title Fires in Idaho and Eastern Oregon
Description MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC, Strong winds fanned wildfires across the western United States on July 19, 2007. The hot, dry, windy conditions led the National Interagency Fire Center to move to a National Preparedness Level [ http://www.nifc.gov/fireinfo/pl_desc.html ] of 5 on a five-point scale, indicating that the fires were numerous, large, and widespread enough to potentially exhaust fire-fighting resources. More than a million acres were burning across the United States in 72 large wildfires on July 19, 2007, said the National Interagency Fire Center. [ http://www.nifc.gov/fire_info/nfn.htm ] Among the largest fires were the Rowland and Elk Mountain fires burning in southwestern Idaho. The active fronts of these fires are outlined in red in this pair of photo-like images acquired by the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on July 19, 2007. The top image was taken at 12:25 p.m., Mountain Daylight Time, when the MODIS on NASA's Terra [ http://terra.nasa.gov/ ] satellite passed over head. The active parts of the Elk Mountain fire surround a dark brown oval of charred land. The fast-moving flames had consumed much of this area in the previous 24 hours. A MODIS image taken on the afternoon of July 18, [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=14396 ] reveals that the fire had been relatively small the previous day, and little land around the fire was charred. The Rowland fire, by contrast, was smaller on July 19 than it had been on July 18. At 2:05 p.m. on July 19, less than two hours after the top image was taken, the MODIS sensor aboard NASA's Aqua [ http://aqua.nasa.gov/ ] satellite captured the lower image. In the two-hour period between images, winds and fire activity picked up substantially. By the time of the second image, the fires were racing through grass and sagebrush and pumping out dense plumes of smoke. The smoke obscures the burned land and the surrounding desert landscape. Strong winds were pulling the smoke north in long plumes that stretch over the green and gold Snake River Plain. The National Interagency Fire Center (NIFC) reported that both the Rowland and Elk Mountain fires exhibited extreme fire behavior, [ http://www.nifc.gov/fireinfo/glossary.html#E ] with fast-moving or unpredictable flames, and that it threatened structures and power lines. On July 20, the Rowland fire had burned 95,000 acres and was 15 percent contained, while the Elk Mountain fire had burned 160,000 acres (up from 25,000 acres the day before) and was 10 percent contained, said NIFC. The large images provided above are at MODIS' maximum resolution (level of detail) of 250 meters per pixel. They stretch south to include much of Nevada and Utah. Both the 12:25 and 2:05 images are available in a variety of resolutions from the MODIS Rapid Response System. Images courtesy Jeff Schmaltz,
Fires in Idaho and Eastern O …
Title Fires in Idaho and Eastern Oregon
Description MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC, Strong winds fanned wildfires across the western United States on July 19, 2007. The hot, dry, windy conditions led the National Interagency Fire Center to move to a National Preparedness Level [ http://www.nifc.gov/fireinfo/pl_desc.html ] of 5 on a five-point scale, indicating that the fires were numerous, large, and widespread enough to potentially exhaust fire-fighting resources. More than a million acres were burning across the United States in 72 large wildfires on July 19, 2007, said the National Interagency Fire Center. [ http://www.nifc.gov/fire_info/nfn.htm ] Among the largest fires were the Rowland and Elk Mountain fires burning in southwestern Idaho. The active fronts of these fires are outlined in red in this pair of photo-like images acquired by the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on July 19, 2007. The top image was taken at 12:25 p.m., Mountain Daylight Time, when the MODIS on NASA's Terra [ http://terra.nasa.gov/ ] satellite passed over head. The active parts of the Elk Mountain fire surround a dark brown oval of charred land. The fast-moving flames had consumed much of this area in the previous 24 hours. A MODIS image taken on the afternoon of July 18, [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=14396 ] reveals that the fire had been relatively small the previous day, and little land around the fire was charred. The Rowland fire, by contrast, was smaller on July 19 than it had been on July 18. At 2:05 p.m. on July 19, less than two hours after the top image was taken, the MODIS sensor aboard NASA's Aqua [ http://aqua.nasa.gov/ ] satellite captured the lower image. In the two-hour period between images, winds and fire activity picked up substantially. By the time of the second image, the fires were racing through grass and sagebrush and pumping out dense plumes of smoke. The smoke obscures the burned land and the surrounding desert landscape. Strong winds were pulling the smoke north in long plumes that stretch over the green and gold Snake River Plain. The National Interagency Fire Center (NIFC) reported that both the Rowland and Elk Mountain fires exhibited extreme fire behavior, [ http://www.nifc.gov/fireinfo/glossary.html#E ] with fast-moving or unpredictable flames, and that it threatened structures and power lines. On July 20, the Rowland fire had burned 95,000 acres and was 15 percent contained, while the Elk Mountain fire had burned 160,000 acres (up from 25,000 acres the day before) and was 10 percent contained, said NIFC. The large images provided above are at MODIS' maximum resolution (level of detail) of 250 meters per pixel. They stretch south to include much of Nevada and Utah. Both the 12:25 and 2:05 images are available in a variety of resolutions from the MODIS Rapid Response System. Images courtesy Jeff Schmaltz,
Fires in Montana and Idaho
Title Fires in Montana and Idaho
Description In the northern Rocky Mountains of Idaho and Montana, dozens of large, dangerous wildfires burned tens of thousands of acres in late July and early August 2007. Several communities in Montana were under evacuation on August 1, according to the daily report from the National Interagency Fire Center. [ http://www.nifc.gov/ ] Like much of the United States (with the notable exception of the southern Great Plains [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=14356 ]), the Northern Rockies of Montana and Idaho were experiencing moderate to severe drought in late July according to the weekly report from the U.S. Drought Monitor. This image of Montana (with a little bit of Idaho included in the lower-left corner) was captured by the Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov ] on NASA's Aqua [ http://aqua.nasa.gov ] satellite on July 31, 2007. Locations where the sensor detected actively burning fires are outlined in red. A westerly wind appeared to have been blowing at the time of the image (2:30 p.m. Mountain Daylight Time), and plumes of smoke spread from the mountains over the state's eastern plains. As of August 1, the Meriwether (20,745 acres) and Ahorn (36,311 acres) were the largest fires in the scene, but the Skyland Fire had grown most rapidly in the previous 24 hours, it grew by an estimated 7,505 acres to a total of 16,055 acres. NASA's Terra [ http://terra.nasa.gov ] and Aqua [ http://aqua.nasa.gov ] satellites both collect fire detection data over the United States at least twice a day, once in daylight and once at night. Through a partnership between NASA's Goddard Space Flight Center's MODIS Rapid Response Team, [ http://rapidfire.sci.gsfc.nasa.gov/ ] the University of Maryland, [ http://maps.geog.umd.edu/firms//default.asp ] and the Remote Sensing Application Center [ http://www.fs.fed.us/eng/rsac/ ] of the USDA Forest Service, the satellite observations are relayed over the Internet to the Forest Service, which maps them. [ http://activefiremaps.fs.fed.us/ ] The Forest Service and its partners use the MODIS fire maps to help them make strategic decisions about where firefighting resources are needed at a national level. The large image provided above has a spatial resolution (level of detail) of 250 meters per pixel. The MODIS Rapid Response Team provides twice-daily [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?AERONET_Missoula/ ] images of the region in additional resolutions. NASA image courtesy the MODIS Rapid Response Team, [ http://rapidfire.sci.gsfc.nasa.gov ] Goddard Space Flight Center
Saharan Dust off West Africa
Title Saharan Dust off West Africa
Description A massive plume of Saharan desert dust (light brown pixels) continued its westward trek across the Atlantic Ocean on March 4, 2003, being held aloft and swept along by strong winds. The plume covers a vast expanse of ocean, roughly equal in extent to about half the land area of the contiguous United States. This true-color image of the dust storm was made by stitching together two images acquired on the same day by NASA's Terra and Aqua satellites. Notice the vertical discontinuity running from top to bottom through the center of this scene. The image was made using data from the Moderate Resolution Imaging Spectroradiometer (MODIS) sensors flying aboard both spacecraft at hours apart on March 4. The scene appears a bit different to each satellite not only because the clouds and dust plumes are moving, but also because the relative angle of the sun is changing. In the righthand image (Aqua MODIS), you can discern more dark green structure in the Indian Ocean, indicating the presence of phytoplankton. The intense biological activity going on there is quite likely being enhanced by the influx of iron-rich desert dust settling into the waters there over recent days. Image courtesy Jeffrey Schmaltz, MODIS Rapid Response Team, NASA GSFC
Sediment from the Susquehann …
Title Sediment from the Susquehanna River
Description As the remnants of Hurricane Ivan moved north over the United States, it dumped torrential rain in southeastern and mid-Atlantic states, triggering inland flooding. Major rivers, including the Ohio, Susquehanna, and Deleware Rivers, pushed over their banks and forced evacuations. Muddy run-off has colored the rivers around the Chesapeake Bay a dirty brown in this true-color image, acquired by the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Terra [ http://terra.nasa.gov/ ] satellite on September 21, 2004. By this time, the floods had largely subsided, but evidence of flooding remains in this image. The top third of the Chesapeake Bay, normally clear and dark, is now mud colored as sediment-laden flood water drains into the bay. The Susquehanna River flows down from the top left corner of the image into the bay, and the Delaware is visible under the clouds coming out of the top right corner. NASA image created by Jesse Allen, Earth Observatory from data provided courtesy of the MODIS Rapid Response team.
Fires in the Southern United …
Title Fires in the Southern United States
Description Strong winds and dry weather propelled fast-moving grass fires in northern Texas on March 12, 2006. This image, taken by the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Terra [ http://terra.nasa.gov/ ] satellite, outlines active fires in red. Thick plumes of grey and white smoke stream away from the fires. These fires are burning in the northern panhandle of Texas, northeast of the city of Amarillo. The northern part of the fire complex is burning near Borger, Texas, about 10 kilometers east of Lake Meredith (shown in the large image). The southern fire is near Interstate 40, near the town of Jericho. At least seven people have died in fires across the Southern Plains, four in a traffic accident on Interstate 40 when thick smoke suddenly shifted across the road, the Associated Press reported. The National Interagency Fire Center reported 168 fires in the Southern United States early on March 13, and one of the largest was the East Amarillo Complex fire, shown here. The fire had burned 100,000 acres of grassland, and forced the evacuation of multiple towns. The large image provided above has a resolution of 250 meters per pixel. The MODIS Rapid Response Team provides the image in additional resolutions. NASA image courtesy Jeff Schmaltz MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.n,asa.ov ], NASA-GSFC
Flooding on the Red River
Title Flooding on the Red River
Description Major flooding swamped the Red River on April 13, 2006, and the National Weather Service issued flood warnings for most communities that lined either side of the river. As the floods swept north into Canada, Winnipeg was bracing for the inundation, expected to peak around April 20. Along the border between the United States and Canada, the Pembina River was also swollen. Flooding at the confluence of the two rivers was nearing its peak when the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Terra [ http://terra.nasa.gov/ ] satellite took the top image. The Red River spanned several kilometers in North Dakota and Minnesota in contrast to the thin blue line it formed during the same period in 2005 (lower image). The floods were caused by snow melt and rain. For official flood forecasts and warnings, please visit the National Weather Service [ http://www.crh.noaa.gov/ahps2/index.php?wfo=fgf ]. The large images provided above have a resolution of 500 meters per pixel. Daily images [ http://rapidfire.sci.gsfc.nasa.gov/fas/?USA2/2006103 ] are available from the MODIS Rapid Response Team in a variety of resolutions, including MODIS' maximum resolution of 250 meters per pixel. NASA images courtesy the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC.
Flooding on the Red River
Title Flooding on the Red River
Description Major flooding swamped the Red River on April 13, 2006, and the National Weather Service issued flood warnings for most communities that lined either side of the river. As the floods swept north into Canada, Winnipeg was bracing for the inundation, expected to peak around April 20. Along the border between the United States and Canada, the Pembina River was also swollen. Flooding at the confluence of the two rivers was nearing its peak when the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Terra [ http://terra.nasa.gov/ ] satellite took the top image. The Red River spanned several kilometers in North Dakota and Minnesota in contrast to the thin blue line it formed during the same period in 2005 (lower image). The floods were caused by snow melt and rain. For official flood forecasts and warnings, please visit the National Weather Service [ http://www.crh.noaa.gov/ahps2/index.php?wfo=fgf ]. The large images provided above have a resolution of 500 meters per pixel. Daily images [ http://rapidfire.sci.gsfc.nasa.gov/fas/?USA2/2006103 ] are available from the MODIS Rapid Response Team in a variety of resolutions, including MODIS' maximum resolution of 250 meters per pixel. NASA images courtesy the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC.
Winter Storms Lash the Weste …
Title Winter Storms Lash the Western United States
Description Between late December 2004 and mid-January 2005, many places in the U.S. West received snowfall daily. The area around Lake Tahoe in the Sierra Nevada Mountains, for example, received snow every day from December 24 through January 11, and had accumulations around 19 feet. The rapid accumulation of such large amounts of snow increases avalanche risk, and land managers at ski resorts and state and national parks have been busy assessing snow pack stability and setting off explosives at avalanche- prone locations to release snow and to test the stability of the snow layers. This pair of images uses visible and short-wave infrared observations form the Moderate Resolution Imaging Spectroradiometer (MODIS) sensors on NASA?s Terra and Aqua satellites to show the widespread snow cover in California, Nevada, and Utah on January 12, 2005 (top), compared to December 23, 2004 (bottom). Snow appears bright blue, water appears deep blue, vegetation appears bright green, and clouds appear white. In addition to the widespread blanket of snow stretching all the way across the January 12 image, a few areas of standing water appear more clearly than in the December image. Water on the ground increased in the northern end of the California Central Valley, as well as in the salt pans to the west-southwest of the Great Salt Lake. The high-resolution image provided above is the January 12 image at a spatial resolution of 500 meters per pixel. The MODIS Rapid Response System provides both images at additional resolutions and color combinations: January 12, 2005, and December 23, 2004. [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?USA1/2004358 ] Image courtesy the MODIS Rapid Response Team, NASA-Goddard Space Flight Center
Fires in Montana and Idaho: …
nasa, nasanaturalhazards
In the northern Rocky Mounta …
Montana_AMO_2007212
mediatype IMAGE
mediatype image
date 2007-07-31
creator NASA -- NASA Image Of The Day
identifier Montana_AMO_2007212
Fires in Idaho and Eastern O …
nasa, nasanaturalhazards
* eoimages.gsfc.nasa.gov/ima …
Idaho_amo_tmo_2007200
mediatype IMAGE
mediatype image
date 2007-07-19
creator NASA -- NASA Image Of The Day
identifier Idaho_amo_tmo_2007200
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