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Progression of Hurricane Isa …
Title Progression of Hurricane Isabel, 2003 (WMS)
Abstract This sequence of images was used to create an animation of the progression of Hurricane Isabel as seen by MODIS.
Completed 2004-03-03
Progression of Hurricane Isa …
Title Progression of Hurricane Isabel, 2003 (WMS)
Abstract This sequence of images was used to create an animation of the progression of Hurricane Isabel as seen by MODIS.
Completed 2004-03-03
Progression of Hurricane Isa …
Title Progression of Hurricane Isabel, 2003 (WMS)
Abstract This sequence of images was used to create an animation of the progression of Hurricane Isabel as seen by MODIS.
Completed 2004-03-03
Progression of Hurricane Isa …
Title Progression of Hurricane Isabel, 2003 (WMS)
Abstract This sequence of images was used to create an animation of the progression of Hurricane Isabel as seen by MODIS.
Completed 2004-03-03
Progression of Hurricane Isa …
Title Progression of Hurricane Isabel, 2003 (WMS)
Abstract This sequence of images was used to create an animation of the progression of Hurricane Isabel as seen by MODIS.
Completed 2004-03-03
Progression of Hurricane Isa …
Title Progression of Hurricane Isabel, 2003 (WMS)
Abstract This sequence of images was used to create an animation of the progression of Hurricane Isabel as seen by MODIS.
Completed 2004-03-03
Progression of Hurricane Isa …
Title Progression of Hurricane Isabel, 2003 (WMS)
Abstract This sequence of images was used to create an animation of the progression of Hurricane Isabel as seen by MODIS.
Completed 2004-03-03
Progression of Hurricane Kat …
Title Progression of Hurricane Katrina, 2005 (WMS)
Abstract Low earth-orbiting satellites, such as Aqua and Terra, usually see any place on Earth no more than once a day. This sequence of color images from the MODIS instruments on Aqua and Terra shows the progression of Hurricane Katrina, from August 24 to August 31, 2005, whenever one of the two instruments captured the hurricane.
Completed 2005-09-08
Global Atmospheric Carbon Mo …
Title Global Atmospheric Carbon Monoxide in 2000 (WMS)
Abstract This visualization shows global carbon monoxide concentrations at the 500 millibar altitude in the atmosphere from March 1, 2000 through December 31, 2000. Areas in red have 200 parts per billion of carbon monoxide or more at that altitude (around 5,500 meters), while areas in blue are 50 parts per billion or less. Carbon monoxide is an atmospheric pollutant and the highest concentrations come from grassland and forest fires in Africa and South America, although there is evidence that industrial sources may also be a factor. Atmospheric circulation rapidly moves the carbon monoxide to other parts of the world once it has reached this altitude. This data was measured by the MOPITT instrument on the Terra satellite.
Completed 2004-02-12
Global Atmospheric Carbon Mo …
Title Global Atmospheric Carbon Monoxide in 2000 (WMS)
Abstract This visualization shows global carbon monoxide concentrations at the 500 millibar altitude in the atmosphere from March 1, 2000 through December 31, 2000. Areas in red have 200 parts per billion of carbon monoxide or more at that altitude (around 5,500 meters), while areas in blue are 50 parts per billion or less. Carbon monoxide is an atmospheric pollutant and the highest concentrations come from grassland and forest fires in Africa and South America, although there is evidence that industrial sources may also be a factor. Atmospheric circulation rapidly moves the carbon monoxide to other parts of the world once it has reached this altitude. This data was measured by the MOPITT instrument on the Terra satellite.
Completed 2004-02-12
Sea Ice Surface Temperature …
Title Sea Ice Surface Temperature with Regions of No Data Indicated (WMS)
Abstract This animation shows the daily sea ice surface temperature over the northern hemisphere from September 2002 through May 2003. The sea ice surface temperature was measured by the MODIS instrument on the Aqua satellite. Since this instrument cannot take measurements through clouds, in cloud-covered regions or areas with suspect data quality, the prior day's value is retained until a valid data reading is obtained. The satellite instruments are also unable to collect data in the dark, so the region around the pole is shown here with a grey cap that grows and shrinks, indicating the region in polar darkness. The color of the sea ice indicates the sea ice surface temperature.
Completed 2004-10-22
Sea Ice Surface Temperature …
Title Sea Ice Surface Temperature with Regions of No Data Indicated (WMS)
Abstract This animation shows the daily sea ice surface temperature over the northern hemisphere from September 2002 through May 2003. The sea ice surface temperature was measured by the MODIS instrument on the Aqua satellite. Since this instrument cannot take measurements through clouds, in cloud-covered regions or areas with suspect data quality, the prior day's value is retained until a valid data reading is obtained. The satellite instruments are also unable to collect data in the dark, so the region around the pole is shown here with a grey cap that grows and shrinks, indicating the region in polar darkness. The color of the sea ice indicates the sea ice surface temperature.
Completed 2004-10-22
Hurricane Katrina Sea Surfac …
Title Hurricane Katrina Sea Surface Temperature (WMS)
Abstract This visualization shows the cold water trail left by Hurricane Katrina. The data is from August 23 through 30, 2005. The colors on the ocean represent the sea surface temperatures, and satellite images of the hurricane clouds are laid over the temperatures to clearly show the hurricane positions. Orange and red depict regions that are 82 degrees F and higher, where the ocean is warm enough for hurricanes to form. Hurricane winds are sustained by the heat energy of the ocean, so the ocean is cooled as the hurricane passes and the energy is extracted to power the winds. The sea surface temperatures are 3-day moving averages based on the AMSR-E instrument on the Aqua satellite, while the cloud images were taken by the Imager on the GOES-12 satellite.
Completed 2005-09-01
Hurricane Katrina Sea Surfac …
Title Hurricane Katrina Sea Surface Temperature (WMS)
Abstract This visualization shows the cold water trail left by Hurricane Katrina. The data is from August 23 through 30, 2005. The colors on the ocean represent the sea surface temperatures, and satellite images of the hurricane clouds are laid over the temperatures to clearly show the hurricane positions. Orange and red depict regions that are 82 degrees F and higher, where the ocean is warm enough for hurricanes to form. Hurricane winds are sustained by the heat energy of the ocean, so the ocean is cooled as the hurricane passes and the energy is extracted to power the winds. The sea surface temperatures are 3-day moving averages based on the AMSR-E instrument on the Aqua satellite, while the cloud images were taken by the Imager on the GOES-12 satellite.
Completed 2005-09-01
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
African Fires during 2002 (W …
Title African Fires during 2002 (WMS)
Abstract This animation shows fire activity in Africa from January 1, 2002 to December 31, 2002. The fires are shown as tiny particles with each particle depicting the geographic region in which fire was detected. The color of a particle represents the number of days since a sizable amount of fire was detected in that region, with red representing less than 20 days, orange representing 20 to 40 days, yellow representing 40 to 60 days, and gray to black representing more than 60 days. This data was measured by the MODIS instrument on the Terra satellite. MODIS detects fires by measuring the brightness temperature of a region in several frequency bands and looking for hot spots where this temperature is greater than the surrounding region.
Completed 2004-02-10
Snow Cover over the Northern …
Title Snow Cover over the Northern Hemisphere during the Winter of 2002-2003 (WMS)
Abstract The amount of snow covering the land has both short and long term effects on the environment. From season to season, snow coverage and depth affect soil moisture and water availability, which directly influence agriculture, wildfire occurrences, and drought. In the long term, the part of the Earth's surface covered by snow reflects up to 80 or 90 percent of the incoming solar radiation as opposed to the 10 or 20 percent that uncovered land reflects, and this has important consequences for the Earth's climate. Satellites identify the snow cover precisely by looking at the difference between light reflected off snow in the visible and the infrared wavelengths. This visualization shows the snow cover in the Northern Hemisphere from September, 2002, through June, 2003, as measured by the MODIS instrument on the Terra satellite. Since this instrument cannot measure snow cover through clouds, this visualization designates an area as covered by snow when the instrument takes a valid measurement showing greater than 50% snow coverage in that area. This area is assumed to be snow covered until the instrument takes a valid measurement showing less than 40% snow coverage in that same area. It is possible to see topographic features in the snow cover such as the Rocky Mountains and the Himalayas, and large snow coverage paths from storms that cross the plains of the United States and Russia can also be seen.
Completed 2004-02-11
Snow Cover over the Northern …
Title Snow Cover over the Northern Hemisphere during the Winter of 2002-2003 (WMS)
Abstract The amount of snow covering the land has both short and long term effects on the environment. From season to season, snow coverage and depth affect soil moisture and water availability, which directly influence agriculture, wildfire occurrences, and drought. In the long term, the part of the Earth's surface covered by snow reflects up to 80 or 90 percent of the incoming solar radiation as opposed to the 10 or 20 percent that uncovered land reflects, and this has important consequences for the Earth's climate. Satellites identify the snow cover precisely by looking at the difference between light reflected off snow in the visible and the infrared wavelengths. This visualization shows the snow cover in the Northern Hemisphere from September, 2002, through June, 2003, as measured by the MODIS instrument on the Terra satellite. Since this instrument cannot measure snow cover through clouds, this visualization designates an area as covered by snow when the instrument takes a valid measurement showing greater than 50% snow coverage in that area. This area is assumed to be snow covered until the instrument takes a valid measurement showing less than 40% snow coverage in that same area. It is possible to see topographic features in the snow cover such as the Rocky Mountains and the Himalayas, and large snow coverage paths from storms that cross the plains of the United States and Russia can also be seen.
Completed 2004-02-11
Progression of Hurricane Den …
Title Progression of Hurricane Dennis, 2005 (WMS)
Abstract The formation of Hurricane Dennis on July 5 made that the earliest date on record that four named storms formed in the Atlantic basin. Dennis proved to be a powerful and destructive storm in the Caribbean Sea and the Gulf of Mexico. It crossed over Cuba on July 8 and 9, leaving at least 10 dead, and caused additional deaths in Haiti. After re-emerging over open water, Dennis re-strengthened into a dangerous Category 4 hurricane with top wind speeds of 233 kilometers per hour (145 mph). The storm passed within 90 kilometers (55 miles) of Pensacola, Florida, and hit land about 80 kilometers (50 miles) east of where Hurricane Ivan struck in September, 2004. A large storm surge of more than 10 feet was created in certain areas, and many homes and businesses in low-lying areas were flooded.
Completed 2005-07-18
Progression of Hurricane Den …
Title Progression of Hurricane Dennis, 2005 (WMS)
Abstract The formation of Hurricane Dennis on July 5 made that the earliest date on record that four named storms formed in the Atlantic basin. Dennis proved to be a powerful and destructive storm in the Caribbean Sea and the Gulf of Mexico. It crossed over Cuba on July 8 and 9, leaving at least 10 dead, and caused additional deaths in Haiti. After re-emerging over open water, Dennis re-strengthened into a dangerous Category 4 hurricane with top wind speeds of 233 kilometers per hour (145 mph). The storm passed within 90 kilometers (55 miles) of Pensacola, Florida, and hit land about 80 kilometers (50 miles) east of where Hurricane Ivan struck in September, 2004. A large storm surge of more than 10 feet was created in certain areas, and many homes and businesses in low-lying areas were flooded.
Completed 2005-07-18
Progression of Hurricane Den …
Title Progression of Hurricane Dennis, 2005 (WMS)
Abstract The formation of Hurricane Dennis on July 5 made that the earliest date on record that four named storms formed in the Atlantic basin. Dennis proved to be a powerful and destructive storm in the Caribbean Sea and the Gulf of Mexico. It crossed over Cuba on July 8 and 9, leaving at least 10 dead, and caused additional deaths in Haiti. After re-emerging over open water, Dennis re-strengthened into a dangerous Category 4 hurricane with top wind speeds of 233 kilometers per hour (145 mph). The storm passed within 90 kilometers (55 miles) of Pensacola, Florida, and hit land about 80 kilometers (50 miles) east of where Hurricane Ivan struck in September, 2004. A large storm surge of more than 10 feet was created in certain areas, and many homes and businesses in low-lying areas were flooded.
Completed 2005-07-18
Progression of Hurricane Den …
Title Progression of Hurricane Dennis, 2005 (WMS)
Abstract The formation of Hurricane Dennis on July 5 made that the earliest date on record that four named storms formed in the Atlantic basin. Dennis proved to be a powerful and destructive storm in the Caribbean Sea and the Gulf of Mexico. It crossed over Cuba on July 8 and 9, leaving at least 10 dead, and caused additional deaths in Haiti. After re-emerging over open water, Dennis re-strengthened into a dangerous Category 4 hurricane with top wind speeds of 233 kilometers per hour (145 mph). The storm passed within 90 kilometers (55 miles) of Pensacola, Florida, and hit land about 80 kilometers (50 miles) east of where Hurricane Ivan struck in September, 2004. A large storm surge of more than 10 feet was created in certain areas, and many homes and businesses in low-lying areas were flooded.
Completed 2005-07-18
Progression of Hurricane Den …
Title Progression of Hurricane Dennis, 2005 (WMS)
Abstract The formation of Hurricane Dennis on July 5 made that the earliest date on record that four named storms formed in the Atlantic basin. Dennis proved to be a powerful and destructive storm in the Caribbean Sea and the Gulf of Mexico. It crossed over Cuba on July 8 and 9, leaving at least 10 dead, and caused additional deaths in Haiti. After re-emerging over open water, Dennis re-strengthened into a dangerous Category 4 hurricane with top wind speeds of 233 kilometers per hour (145 mph). The storm passed within 90 kilometers (55 miles) of Pensacola, Florida, and hit land about 80 kilometers (50 miles) east of where Hurricane Ivan struck in September, 2004. A large storm surge of more than 10 feet was created in certain areas, and many homes and businesses in low-lying areas were flooded.
Completed 2005-07-18
Progression of Hurricane Fra …
Title Progression of Hurricane Frances, 2004 (WMS)
Abstract Hurricane Frances was the second hurricane to hit Florida during the 2004 hurricane season. This set of images shows the progression of the hurricane as it approached Florida from the Atlantic Ocean.
Completed 2005-04-21
Progression of Hurricane Fra …
Title Progression of Hurricane Frances, 2004 (WMS)
Abstract Hurricane Frances was the second hurricane to hit Florida during the 2004 hurricane season. This set of images shows the progression of the hurricane as it approached Florida from the Atlantic Ocean.
Completed 2005-04-21
Progression of Hurricane Fra …
Title Progression of Hurricane Frances, 2004 (WMS)
Abstract Hurricane Frances was the second hurricane to hit Florida during the 2004 hurricane season. This set of images shows the progression of the hurricane as it approached Florida from the Atlantic Ocean.
Completed 2005-04-21
Progression of Hurricane Fra …
Title Progression of Hurricane Frances, 2004 (WMS)
Abstract Hurricane Frances was the second hurricane to hit Florida during the 2004 hurricane season. This set of images shows the progression of the hurricane as it approached Florida from the Atlantic Ocean.
Completed 2005-04-21
Progression of Hurricane Fra …
Title Progression of Hurricane Frances, 2004 (WMS)
Abstract Hurricane Frances was the second hurricane to hit Florida during the 2004 hurricane season. This set of images shows the progression of the hurricane as it approached Florida from the Atlantic Ocean.
Completed 2005-04-21
Daily Sea Ice Surface Temper …
Title Daily Sea Ice Surface Temperature 2002-2003 (WMS)
Abstract This animation shows the daily sea ice surface temperature over the northern hemisphere from September 2002 through May 2003. The sea ice surface temperature was measured by the MODIS instrument on the Aqua satellite. Since this instrument cannot take measurements through clouds or in the dark, in dark or cloud-covered regions or areas with suspect data quality, the prior day's value is retained until a valid data reading is obtained. The color of the sea ice indicates the sea ice surface temperature.
Completed 2004-10-22
Progression of Hurricane Iva …
Title Progression of Hurricane Ivan, 2004 (WMS)
Abstract Hurricane Ivan was the third hurricane to hit Florida during the 2004 hurricane season. This set of images shows the progression of the hurricane as it approached the Gulf Coast across the Caribbean Sea and the Gulf of Mexico.
Completed 2005-05-05
Progression of Hurricane Iva …
Title Progression of Hurricane Ivan, 2004 (WMS)
Abstract Hurricane Ivan was the third hurricane to hit Florida during the 2004 hurricane season. This set of images shows the progression of the hurricane as it approached the Gulf Coast across the Caribbean Sea and the Gulf of Mexico.
Completed 2005-05-05
Progression of Hurricane Iva …
Title Progression of Hurricane Ivan, 2004 (WMS)
Abstract Hurricane Ivan was the third hurricane to hit Florida during the 2004 hurricane season. This set of images shows the progression of the hurricane as it approached the Gulf Coast across the Caribbean Sea and the Gulf of Mexico.
Completed 2005-05-05
Progression of Hurricane Iva …
Title Progression of Hurricane Ivan, 2004 (WMS)
Abstract Hurricane Ivan was the third hurricane to hit Florida during the 2004 hurricane season. This set of images shows the progression of the hurricane as it approached the Gulf Coast across the Caribbean Sea and the Gulf of Mexico.
Completed 2005-05-05
Progression of Hurricane Iva …
Title Progression of Hurricane Ivan, 2004 (WMS)
Abstract Hurricane Ivan was the third hurricane to hit Florida during the 2004 hurricane season. This set of images shows the progression of the hurricane as it approached the Gulf Coast across the Caribbean Sea and the Gulf of Mexico.
Completed 2005-05-05
Progression of Hurricane Iva …
Title Progression of Hurricane Ivan, 2004 (WMS)
Abstract Hurricane Ivan was the third hurricane to hit Florida during the 2004 hurricane season. This set of images shows the progression of the hurricane as it approached the Gulf Coast across the Caribbean Sea and the Gulf of Mexico.
Completed 2005-05-05
Progression of Hurricane Iva …
Title Progression of Hurricane Ivan, 2004 (WMS)
Abstract Hurricane Ivan was the third hurricane to hit Florida during the 2004 hurricane season. This set of images shows the progression of the hurricane as it approached the Gulf Coast across the Caribbean Sea and the Gulf of Mexico.
Completed 2005-05-05
Pine Island Glacier Calving …
Title Pine Island Glacier Calving (WMS)
Abstract The Pine Island Glacier is the largest discharger of ice in Antarctica and the continent's fastest moving glacier. Even so, when a large crack formed across the glacier in mid 2000, it was surprising how fast the crack expanded, 15 meters per day, and how soon the resulting iceberg broke off, mid-November, 2001. This iceberg, called B-21, is 42 kilometers by 17 kilometers and contains seven years of glacier outflow released to the sea in a single event. This series of images from the MISR instrument on the Terra satellite not only shows the crack expanding and the iceberg breakoff, but the seaward moving glacial flow in the parts of the Pine Island Glacier upstream of the crack.
Completed 2005-03-09
Snow Cover over North Americ …
Title Snow Cover over North America during the Winter of 2001-2002 (WMS)
Abstract The amount of snow covering the land has both short and long term effects on the environment. From season to season, snow coverage and depth affect soil moisture and water availability, which directly influence agriculture, wildfire occurrences, and drought. In the long term, the part of the Earth's surface covered by snow reflects up to 80 or 90 percent of the incoming solar radiation as opposed to the 10 or 20 percent that uncovered land reflects, and this has important consequences for the Earth's climate. Satellites identify the snow cover precisely by looking at the difference between light reflected off snow in the visible and the infrared wavelengths. This visualization shows the snow cover over North America from October, 2001, through April, 2002, as measured by the MODIS instrument on the Terra satellite. Since this instrument cannot measure snow cover through clouds, this visualization designates an area as covered by snow when the instrument takes a valid measurement showing greater than 50% snow coverage in that area. This area is assumed to be covered in snow until the instrument takes a valid measurement showing less than 40% coverage in that same area. In this animation, snow coverage is measured every 8 days.
Completed 2004-10-20
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