Narrow Search
 
 
Advanced Search

Browse All : Images of Goddard Space Flight Center (GSFC) from 2006 and 2002

Printer Friendly
1-45 of 45
     
     
Hubble's Largest Galaxy Port …
Title Hubble's Largest Galaxy Portrait Offers a New High-Definition View
General Information What is Hubble Heritage? A monthly showcase of new and archival Hubble images. Go to the Heritage site. Giant galaxies weren?t assembled in a day. Neither was this Hubble Space Telescope image of the face-on spiral galaxy Messier 101 (M101). It is the largest and most detailed photo of a spiral galaxy that has ever been released from Hubble. The galaxy?s portrait is actually composed of 51 individual exposures taken with Hubble's Advanced Camera for Surveys and the Wide Field and Planetary Camera 2 in March 1994, September 1994, June 1999, November 2002, and January 2003. The newly composed image also includes elements from images from ground-based photos.
Hubble's Largest Galaxy Port …
Title Hubble's Largest Galaxy Portrait Offers a New High-Definition View
General Information What is Hubble Heritage? A monthly showcase of new and archival Hubble images. Go to the Heritage site. Giant galaxies weren?t assembled in a day. Neither was this Hubble Space Telescope image of the face-on spiral galaxy Messier 101 (M101). It is the largest and most detailed photo of a spiral galaxy that has ever been released from Hubble. The galaxy?s portrait is actually composed of 51 individual exposures taken with Hubble's Advanced Camera for Surveys and the Wide Field and Planetary Camera 2 in March 1994, September 1994, June 1999, November 2002, and January 2003. The newly composed image also includes elements from images from ground-based photos.
Hubble Finds that Earth is S …
Title Hubble Finds that Earth is Safe from One Class of Gamma-ray Burst
Hubble Finds that Earth is S …
Title Hubble Finds that Earth is Safe from One Class of Gamma-ray Burst
Hubble Finds that Earth is S …
Title Hubble Finds that Earth is Safe from One Class of Gamma-ray Burst
Hubble Finds that Earth is S …
Title Hubble Finds that Earth is Safe from One Class of Gamma-ray Burst
Hubble Finds that Earth is S …
Title Hubble Finds that Earth is Safe from One Class of Gamma-ray Burst
Hubble Finds that Earth is S …
Title Hubble Finds that Earth is Safe from One Class of Gamma-ray Burst
Hubble Finds that Earth is S …
Title Hubble Finds that Earth is Safe from One Class of Gamma-ray Burst
Hubble Finds that Earth is S …
Title Hubble Finds that Earth is Safe from One Class of Gamma-ray Burst
Hubble Finds that Earth is S …
Title Hubble Finds that Earth is Safe from One Class of Gamma-ray Burst
Hubble Finds that Earth is S …
Title Hubble Finds that Earth is Safe from One Class of Gamma-ray Burst
Sequence of Clouds, Snow Cov …
Title Sequence of Clouds, Snow Cover, Sea Ice, Sea Surface Temperature and Biosphere
Abstract This animation is part of an NSF-funded, international project, Exploring Time. The two-hour television special, broadcast on the Discovery Channel in the spring of 2007, explores how the world changes over different timescales ... from billionths of seconds to billions of years. This animation portrays a variety of remotely sensed data elements at different temporal resolutions. Initially, the animation shows cloud cover in motion over North America in half-hour increments from Nov. 26 to Dec. 7, 2005. The temporal pace quickens to show a 5-day moving average of daily MODIS snow cover along with daily AMSR-E sea ice from Dec. 7, 2005 to Mar. 15, 2006. As the view swings south over the Gulf of Mexico, the AMSR-E Sea Surface Temperature reveals warming ocean temperatures from March through August, 2006. As it passes over the Atlantic Ocean, the biosphere fades into view, showing both chlorophyll concentration in the ocean along with Normalized Difference Vegetation Index over the land areas. The biosphere animates over time while the view pans over northern Africa and Europe, showing data collected from September 2002 through February 2006. This program was also broadcast in Japan through a partnership with the NHK international broadcasting service and in France through a partnership with the ARTE television network.
Completed 2006-11-29
Sequence of Clouds, Snow Cov …
Title Sequence of Clouds, Snow Cover, Sea Ice, Sea Surface Temperature and Biosphere
Abstract This animation is part of an NSF-funded, international project, Exploring Time. The two-hour television special, broadcast on the Discovery Channel in the spring of 2007, explores how the world changes over different timescales ... from billionths of seconds to billions of years. This animation portrays a variety of remotely sensed data elements at different temporal resolutions. Initially, the animation shows cloud cover in motion over North America in half-hour increments from Nov. 26 to Dec. 7, 2005. The temporal pace quickens to show a 5-day moving average of daily MODIS snow cover along with daily AMSR-E sea ice from Dec. 7, 2005 to Mar. 15, 2006. As the view swings south over the Gulf of Mexico, the AMSR-E Sea Surface Temperature reveals warming ocean temperatures from March through August, 2006. As it passes over the Atlantic Ocean, the biosphere fades into view, showing both chlorophyll concentration in the ocean along with Normalized Difference Vegetation Index over the land areas. The biosphere animates over time while the view pans over northern Africa and Europe, showing data collected from September 2002 through February 2006. This program was also broadcast in Japan through a partnership with the NHK international broadcasting service and in France through a partnership with the ARTE television network.
Completed 2006-11-29
Sequence of Clouds, Snow Cov …
Title Sequence of Clouds, Snow Cover, Sea Ice, Sea Surface Temperature and Biosphere
Abstract This animation is part of an NSF-funded, international project, Exploring Time. The two-hour television special, broadcast on the Discovery Channel in the spring of 2007, explores how the world changes over different timescales ... from billionths of seconds to billions of years. This animation portrays a variety of remotely sensed data elements at different temporal resolutions. Initially, the animation shows cloud cover in motion over North America in half-hour increments from Nov. 26 to Dec. 7, 2005. The temporal pace quickens to show a 5-day moving average of daily MODIS snow cover along with daily AMSR-E sea ice from Dec. 7, 2005 to Mar. 15, 2006. As the view swings south over the Gulf of Mexico, the AMSR-E Sea Surface Temperature reveals warming ocean temperatures from March through August, 2006. As it passes over the Atlantic Ocean, the biosphere fades into view, showing both chlorophyll concentration in the ocean along with Normalized Difference Vegetation Index over the land areas. The biosphere animates over time while the view pans over northern Africa and Europe, showing data collected from September 2002 through February 2006. This program was also broadcast in Japan through a partnership with the NHK international broadcasting service and in France through a partnership with the ARTE television network.
Completed 2006-11-29
Sequence of Clouds, Snow Cov …
Title Sequence of Clouds, Snow Cover, Sea Ice, Sea Surface Temperature and Biosphere
Abstract This animation is part of an NSF-funded, international project, Exploring Time. The two-hour television special, broadcast on the Discovery Channel in the spring of 2007, explores how the world changes over different timescales ... from billionths of seconds to billions of years. This animation portrays a variety of remotely sensed data elements at different temporal resolutions. Initially, the animation shows cloud cover in motion over North America in half-hour increments from Nov. 26 to Dec. 7, 2005. The temporal pace quickens to show a 5-day moving average of daily MODIS snow cover along with daily AMSR-E sea ice from Dec. 7, 2005 to Mar. 15, 2006. As the view swings south over the Gulf of Mexico, the AMSR-E Sea Surface Temperature reveals warming ocean temperatures from March through August, 2006. As it passes over the Atlantic Ocean, the biosphere fades into view, showing both chlorophyll concentration in the ocean along with Normalized Difference Vegetation Index over the land areas. The biosphere animates over time while the view pans over northern Africa and Europe, showing data collected from September 2002 through February 2006. This program was also broadcast in Japan through a partnership with the NHK international broadcasting service and in France through a partnership with the ARTE television network.
Completed 2006-11-29
Sequence of Clouds, Snow Cov …
Title Sequence of Clouds, Snow Cover, Sea Ice, Sea Surface Temperature and Biosphere
Abstract This animation is part of an NSF-funded, international project, Exploring Time. The two-hour television special, broadcast on the Discovery Channel in the spring of 2007, explores how the world changes over different timescales ... from billionths of seconds to billions of years. This animation portrays a variety of remotely sensed data elements at different temporal resolutions. Initially, the animation shows cloud cover in motion over North America in half-hour increments from Nov. 26 to Dec. 7, 2005. The temporal pace quickens to show a 5-day moving average of daily MODIS snow cover along with daily AMSR-E sea ice from Dec. 7, 2005 to Mar. 15, 2006. As the view swings south over the Gulf of Mexico, the AMSR-E Sea Surface Temperature reveals warming ocean temperatures from March through August, 2006. As it passes over the Atlantic Ocean, the biosphere fades into view, showing both chlorophyll concentration in the ocean along with Normalized Difference Vegetation Index over the land areas. The biosphere animates over time while the view pans over northern Africa and Europe, showing data collected from September 2002 through February 2006. This program was also broadcast in Japan through a partnership with the NHK international broadcasting service and in France through a partnership with the ARTE television network.
Completed 2006-11-29
Sequence of Clouds, Snow Cov …
Title Sequence of Clouds, Snow Cover, Sea Ice, Sea Surface Temperature and Biosphere
Abstract This animation is part of an NSF-funded, international project, Exploring Time. The two-hour television special, broadcast on the Discovery Channel in the spring of 2007, explores how the world changes over different timescales ... from billionths of seconds to billions of years. This animation portrays a variety of remotely sensed data elements at different temporal resolutions. Initially, the animation shows cloud cover in motion over North America in half-hour increments from Nov. 26 to Dec. 7, 2005. The temporal pace quickens to show a 5-day moving average of daily MODIS snow cover along with daily AMSR-E sea ice from Dec. 7, 2005 to Mar. 15, 2006. As the view swings south over the Gulf of Mexico, the AMSR-E Sea Surface Temperature reveals warming ocean temperatures from March through August, 2006. As it passes over the Atlantic Ocean, the biosphere fades into view, showing both chlorophyll concentration in the ocean along with Normalized Difference Vegetation Index over the land areas. The biosphere animates over time while the view pans over northern Africa and Europe, showing data collected from September 2002 through February 2006. This program was also broadcast in Japan through a partnership with the NHK international broadcasting service and in France through a partnership with the ARTE television network.
Completed 2006-11-29
Updated Jakobshavn Glacier C …
Title Updated Jakobshavn Glacier Calving Front Retreat from 2001 through 2006
Abstract Since measurements of Jakobshavn Isbrae were first taken in 1850, the glacier has gradually receded, finally coming to rest at a certain point for the past 5 decades. However, from 1997 to 2006, the glacier has begun to recede again, this time almost doubling in speed. The finding is important for many reasons. As more ice moves from glaciers on land into the ocean, ocean sea levels raise. Jakobshavn Isbrae is Greenland's largest outlet glacier, draining 6.5 percent of Greenland's ice sheet area. The ice stream's speed-up and near-doubling of ice flow from land into the ocean has increased the rate of sea level rise by about .06 millimeters (about .002 inches) per year, or roughly 4 percent of the 20th century rate of sea level increase. This animation shows the glacier's flow in 2000, along with changes in the glacier's calving front between 2001 and 2006. This animation is an update of and extension to animation ID #3374. In this version, a pause is added on the approach to the Jakobshavn glacier in order to highlight the meltwater lakes visible on the Greenland ice sheet. In addition, semi-transparent overlays and text indicate different regions of the glacier before the calving lines are shown. After the calving front retreat, an additional segment shows a zoom to a global view. During the pull out, historic calving front locations are shown followed by a color overlay showing regions of increase and decrease in the Greenland ice sheet.
Completed 2007-07-20
Updated Jakobshavn Glacier C …
Title Updated Jakobshavn Glacier Calving Front Retreat from 2001 through 2006
Abstract Since measurements of Jakobshavn Isbrae were first taken in 1850, the glacier has gradually receded, finally coming to rest at a certain point for the past 5 decades. However, from 1997 to 2006, the glacier has begun to recede again, this time almost doubling in speed. The finding is important for many reasons. As more ice moves from glaciers on land into the ocean, ocean sea levels raise. Jakobshavn Isbrae is Greenland's largest outlet glacier, draining 6.5 percent of Greenland's ice sheet area. The ice stream's speed-up and near-doubling of ice flow from land into the ocean has increased the rate of sea level rise by about .06 millimeters (about .002 inches) per year, or roughly 4 percent of the 20th century rate of sea level increase. This animation shows the glacier's flow in 2000, along with changes in the glacier's calving front between 2001 and 2006. This animation is an update of and extension to animation ID #3374. In this version, a pause is added on the approach to the Jakobshavn glacier in order to highlight the meltwater lakes visible on the Greenland ice sheet. In addition, semi-transparent overlays and text indicate different regions of the glacier before the calving lines are shown. After the calving front retreat, an additional segment shows a zoom to a global view. During the pull out, historic calving front locations are shown followed by a color overlay showing regions of increase and decrease in the Greenland ice sheet.
Completed 2007-07-20
Updated Jakobshavn Glacier C …
Title Updated Jakobshavn Glacier Calving Front Retreat from 2001 through 2006
Abstract Since measurements of Jakobshavn Isbrae were first taken in 1850, the glacier has gradually receded, finally coming to rest at a certain point for the past 5 decades. However, from 1997 to 2006, the glacier has begun to recede again, this time almost doubling in speed. The finding is important for many reasons. As more ice moves from glaciers on land into the ocean, ocean sea levels raise. Jakobshavn Isbrae is Greenland's largest outlet glacier, draining 6.5 percent of Greenland's ice sheet area. The ice stream's speed-up and near-doubling of ice flow from land into the ocean has increased the rate of sea level rise by about .06 millimeters (about .002 inches) per year, or roughly 4 percent of the 20th century rate of sea level increase. This animation shows the glacier's flow in 2000, along with changes in the glacier's calving front between 2001 and 2006. This animation is an update of and extension to animation ID #3374. In this version, a pause is added on the approach to the Jakobshavn glacier in order to highlight the meltwater lakes visible on the Greenland ice sheet. In addition, semi-transparent overlays and text indicate different regions of the glacier before the calving lines are shown. After the calving front retreat, an additional segment shows a zoom to a global view. During the pull out, historic calving front locations are shown followed by a color overlay showing regions of increase and decrease in the Greenland ice sheet.
Completed 2007-07-20
Updated Jakobshavn Glacier C …
Title Updated Jakobshavn Glacier Calving Front Retreat from 2001 through 2006
Abstract Since measurements of Jakobshavn Isbrae were first taken in 1850, the glacier has gradually receded, finally coming to rest at a certain point for the past 5 decades. However, from 1997 to 2006, the glacier has begun to recede again, this time almost doubling in speed. The finding is important for many reasons. As more ice moves from glaciers on land into the ocean, ocean sea levels raise. Jakobshavn Isbrae is Greenland's largest outlet glacier, draining 6.5 percent of Greenland's ice sheet area. The ice stream's speed-up and near-doubling of ice flow from land into the ocean has increased the rate of sea level rise by about .06 millimeters (about .002 inches) per year, or roughly 4 percent of the 20th century rate of sea level increase. This animation shows the glacier's flow in 2000, along with changes in the glacier's calving front between 2001 and 2006. This animation is an update of and extension to animation ID #3374. In this version, a pause is added on the approach to the Jakobshavn glacier in order to highlight the meltwater lakes visible on the Greenland ice sheet. In addition, semi-transparent overlays and text indicate different regions of the glacier before the calving lines are shown. After the calving front retreat, an additional segment shows a zoom to a global view. During the pull out, historic calving front locations are shown followed by a color overlay showing regions of increase and decrease in the Greenland ice sheet.
Completed 2007-07-20
Updated Jakobshavn Glacier C …
Title Updated Jakobshavn Glacier Calving Front Retreat from 2001 through 2006
Abstract Since measurements of Jakobshavn Isbrae were first taken in 1850, the glacier has gradually receded, finally coming to rest at a certain point for the past 5 decades. However, from 1997 to 2006, the glacier has begun to recede again, this time almost doubling in speed. The finding is important for many reasons. As more ice moves from glaciers on land into the ocean, ocean sea levels raise. Jakobshavn Isbrae is Greenland's largest outlet glacier, draining 6.5 percent of Greenland's ice sheet area. The ice stream's speed-up and near-doubling of ice flow from land into the ocean has increased the rate of sea level rise by about .06 millimeters (about .002 inches) per year, or roughly 4 percent of the 20th century rate of sea level increase. This animation shows the glacier's flow in 2000, along with changes in the glacier's calving front between 2001 and 2006. This animation is an update of and extension to animation ID #3374. In this version, a pause is added on the approach to the Jakobshavn glacier in order to highlight the meltwater lakes visible on the Greenland ice sheet. In addition, semi-transparent overlays and text indicate different regions of the glacier before the calving lines are shown. After the calving front retreat, an additional segment shows a zoom to a global view. During the pull out, historic calving front locations are shown followed by a color overlay showing regions of increase and decrease in the Greenland ice sheet.
Completed 2007-07-20
Updated Jakobshavn Glacier C …
Title Updated Jakobshavn Glacier Calving Front Retreat from 2001 through 2006
Abstract Since measurements of Jakobshavn Isbrae were first taken in 1850, the glacier has gradually receded, finally coming to rest at a certain point for the past 5 decades. However, from 1997 to 2006, the glacier has begun to recede again, this time almost doubling in speed. The finding is important for many reasons. As more ice moves from glaciers on land into the ocean, ocean sea levels raise. Jakobshavn Isbrae is Greenland's largest outlet glacier, draining 6.5 percent of Greenland's ice sheet area. The ice stream's speed-up and near-doubling of ice flow from land into the ocean has increased the rate of sea level rise by about .06 millimeters (about .002 inches) per year, or roughly 4 percent of the 20th century rate of sea level increase. This animation shows the glacier's flow in 2000, along with changes in the glacier's calving front between 2001 and 2006. This animation is an update of and extension to animation ID #3374. In this version, a pause is added on the approach to the Jakobshavn glacier in order to highlight the meltwater lakes visible on the Greenland ice sheet. In addition, semi-transparent overlays and text indicate different regions of the glacier before the calving lines are shown. After the calving front retreat, an additional segment shows a zoom to a global view. During the pull out, historic calving front locations are shown followed by a color overlay showing regions of increase and decrease in the Greenland ice sheet.
Completed 2007-07-20
Updated Jakobshavn Glacier C …
Title Updated Jakobshavn Glacier Calving Front Retreat from 2001 through 2006
Abstract Since measurements of Jakobshavn Isbrae were first taken in 1850, the glacier has gradually receded, finally coming to rest at a certain point for the past 5 decades. However, from 1997 to 2006, the glacier has begun to recede again, this time almost doubling in speed. The finding is important for many reasons. As more ice moves from glaciers on land into the ocean, ocean sea levels raise. Jakobshavn Isbrae is Greenland's largest outlet glacier, draining 6.5 percent of Greenland's ice sheet area. The ice stream's speed-up and near-doubling of ice flow from land into the ocean has increased the rate of sea level rise by about .06 millimeters (about .002 inches) per year, or roughly 4 percent of the 20th century rate of sea level increase. This animation shows the glacier's flow in 2000, along with changes in the glacier's calving front between 2001 and 2006. This animation is an update of and extension to animation ID #3374. In this version, a pause is added on the approach to the Jakobshavn glacier in order to highlight the meltwater lakes visible on the Greenland ice sheet. In addition, semi-transparent overlays and text indicate different regions of the glacier before the calving lines are shown. After the calving front retreat, an additional segment shows a zoom to a global view. During the pull out, historic calving front locations are shown followed by a color overlay showing regions of increase and decrease in the Greenland ice sheet.
Completed 2007-07-20
MODIS Sea Surface Temperatur …
Title MODIS Sea Surface Temperature from 2002 to 2006
Abstract A recent study indicates there is a correlation between ocean nutrients and changes in sea surface temperature (SST). The results show that when ocean water warms, marine plant life in the form of microscopic phytoplankton tend to decline. When water cools, plant life flourishes. Changes in phytoplankton growth influence fishery yields and the amount of carbon dioxide the oceans remove from the atmosphere. This could have major implications on the future of our ocean's food web and how it relates to climate change. The temperature data in this visualization comes from the Moderate Resolution Imaging Spectroradiometer (MODIS) onboard NASA's Terra and Aqua spacecraft. In order to see the correlation between SST and SeaWiFS data, this animation can be compared to the latter part of the animation called 'SeaWiFS Biosphere from 1997 to 2006'. Please click here to see this other animation.
Completed 2006-11-22
MODIS Sea Surface Temperatur …
Title MODIS Sea Surface Temperature from 2002 to 2006
Abstract A recent study indicates there is a correlation between ocean nutrients and changes in sea surface temperature (SST). The results show that when ocean water warms, marine plant life in the form of microscopic phytoplankton tend to decline. When water cools, plant life flourishes. Changes in phytoplankton growth influence fishery yields and the amount of carbon dioxide the oceans remove from the atmosphere. This could have major implications on the future of our ocean's food web and how it relates to climate change. The temperature data in this visualization comes from the Moderate Resolution Imaging Spectroradiometer (MODIS) onboard NASA's Terra and Aqua spacecraft. In order to see the correlation between SST and SeaWiFS data, this animation can be compared to the latter part of the animation called 'SeaWiFS Biosphere from 1997 to 2006'. Please click here to see this other animation.
Completed 2006-11-22
Updated Jakobshavn Glacier C …
Title Updated Jakobshavn Glacier Calving Front Retreat from 2001 through 2006 with Blue/White Elevation Change over Greenland
Abstract Since measurements of Jakobshavn Isbrae were first taken in 1850, the glacier gradually receded until about 1950, where it remained stable for the past 5 decades. However, from 1997 to 2006, the glacier has begun to recede again, this time almost doubling in speed. The finding is important for many reasons. As more ice moves from glaciers on land into the ocean, ocean sea levels raise. Jakobshavn Isbrae is Greenland's largest outlet glacier, draining 6.5 percent of Greenland's ice sheet area. The ice stream's speed-up and near-doubling of ice flow from land into the ocean has increased the rate of sea level rise by about .06 millimeters (about .002 inches) per year, or roughly 4 percent of the 20th century rate of sea level increase. This animation shows the glacier's flow in 2000, along with changes in the glacier's calving front between 2001 and 2006. This animation is an update of, and extension to, animation IDs #3374 and #3434. In this version, the pause on the approach to the Jakobshavn glacier where the meltwater lakes on the Greenland ice sheet are visible is shortened. In addition, the colors showing regions of elevation increase and decrease over the Greenland ice sheet are modified.
Completed 2007-09-27
Updated Jakobshavn Glacier C …
Title Updated Jakobshavn Glacier Calving Front Retreat from 2001 through 2006 with Blue/White Elevation Change over Greenland
Abstract Since measurements of Jakobshavn Isbrae were first taken in 1850, the glacier gradually receded until about 1950, where it remained stable for the past 5 decades. However, from 1997 to 2006, the glacier has begun to recede again, this time almost doubling in speed. The finding is important for many reasons. As more ice moves from glaciers on land into the ocean, ocean sea levels raise. Jakobshavn Isbrae is Greenland's largest outlet glacier, draining 6.5 percent of Greenland's ice sheet area. The ice stream's speed-up and near-doubling of ice flow from land into the ocean has increased the rate of sea level rise by about .06 millimeters (about .002 inches) per year, or roughly 4 percent of the 20th century rate of sea level increase. This animation shows the glacier's flow in 2000, along with changes in the glacier's calving front between 2001 and 2006. This animation is an update of, and extension to, animation IDs #3374 and #3434. In this version, the pause on the approach to the Jakobshavn glacier where the meltwater lakes on the Greenland ice sheet are visible is shortened. In addition, the colors showing regions of elevation increase and decrease over the Greenland ice sheet are modified.
Completed 2007-09-27
MODIS Sea Surface Temperatur …
Title MODIS Sea Surface Temperature Time Series Data Shows Increased Temperatures in Great Barrier Reef - Wide View
Abstract Coral bleaching may be one of the greatest threats to the Great Barrier Reef. Coral bleaching is a stress response that often occurs when the surrounding waters become too warm for the corals. In the stressful situation, the corals expel their brownish zooxanthellae and lose their color. Zooxanthellae are unicellular yellow-brown algae that make it possible for the corals to grow and reproduce quickly enough to create reefs. Without the zooxanthellae, the coral cannot obtain sufficient nourishment. If conditions remain difficult, the corals may die. Major coral bleaching incidents on the Great Barrier Reef in 1998 and 2002 led to widespread death of corals in some areas. Researchers in the Barrier reef of Australia are using NASA's resources to help identify troubled coral. Currently, the most severe coral bleaching occurs over inshore reefs where the Sea Surface Temperatures are showing increased temperatures.
Completed 2005-02-28
MODIS Sea Surface Temperatur …
Title MODIS Sea Surface Temperature Time Series Data Shows Increased Temperatures in Great Barrier Reef - Wide View
Abstract Coral bleaching may be one of the greatest threats to the Great Barrier Reef. Coral bleaching is a stress response that often occurs when the surrounding waters become too warm for the corals. In the stressful situation, the corals expel their brownish zooxanthellae and lose their color. Zooxanthellae are unicellular yellow-brown algae that make it possible for the corals to grow and reproduce quickly enough to create reefs. Without the zooxanthellae, the coral cannot obtain sufficient nourishment. If conditions remain difficult, the corals may die. Major coral bleaching incidents on the Great Barrier Reef in 1998 and 2002 led to widespread death of corals in some areas. Researchers in the Barrier reef of Australia are using NASA's resources to help identify troubled coral. Currently, the most severe coral bleaching occurs over inshore reefs where the Sea Surface Temperatures are showing increased temperatures.
Completed 2005-02-28
MODIS Sea Surface Temperatur …
Title MODIS Sea Surface Temperature Time Series Data Shows Increased Temperatures in Great Barrier Reef - Wide View
Abstract Coral bleaching may be one of the greatest threats to the Great Barrier Reef. Coral bleaching is a stress response that often occurs when the surrounding waters become too warm for the corals. In the stressful situation, the corals expel their brownish zooxanthellae and lose their color. Zooxanthellae are unicellular yellow-brown algae that make it possible for the corals to grow and reproduce quickly enough to create reefs. Without the zooxanthellae, the coral cannot obtain sufficient nourishment. If conditions remain difficult, the corals may die. Major coral bleaching incidents on the Great Barrier Reef in 1998 and 2002 led to widespread death of corals in some areas. Researchers in the Barrier reef of Australia are using NASA's resources to help identify troubled coral. Currently, the most severe coral bleaching occurs over inshore reefs where the Sea Surface Temperatures are showing increased temperatures.
Completed 2005-02-28
MODIS Sea Surface Temperatur …
Title MODIS Sea Surface Temperature Highlighting the Gulf Stream (2002 to 2006)
Abstract A recent study indicates a correlation between ocean nutrients and changes sea surface temperature (SST). The results show that when SSTs warm, marine plant life in the form of microscopic phytoplankton declines. Similarly, when SSTs cool, marine plant life seems to flourish. Changes in phytoplankton growth influence fishery yields and the amount of carbon dioxide the oceans remove from the atmosphere. This could have major implications on the future of our ocean's food web and how it relates to climate change. The temperature data in this visualization comes from the Moderate Resolution Imaging Spectroradiometer (MODIS) onboard NASA's Terra and Aqua spacecraft.
Completed 2006-11-22
MODIS Sea Surface Temperatur …
Title MODIS Sea Surface Temperature Highlighting the Gulf Stream (2002 to 2006)
Abstract A recent study indicates a correlation between ocean nutrients and changes sea surface temperature (SST). The results show that when SSTs warm, marine plant life in the form of microscopic phytoplankton declines. Similarly, when SSTs cool, marine plant life seems to flourish. Changes in phytoplankton growth influence fishery yields and the amount of carbon dioxide the oceans remove from the atmosphere. This could have major implications on the future of our ocean's food web and how it relates to climate change. The temperature data in this visualization comes from the Moderate Resolution Imaging Spectroradiometer (MODIS) onboard NASA's Terra and Aqua spacecraft.
Completed 2006-11-22
Jakobshavn Glacier Flow in t …
Title Jakobshavn Glacier Flow in the year 2000 and Calving Front Retreat from 2001 to 2006
Abstract Since measurements of Jakobshavn Isbrae were first taken in 1850, the glacier has gradually receded, finally coming to rest at a certain point for the past 5 decades. However, from 1997 to 2006, the glacier has begun to recede again, this time almost doubling in speed. The finding is important for many reasons. As more ice moves from glaciers on land into the ocean, it raises sea levels. Jakobshavn Isbrae is Greenland's largest outlet glacier, draining 6.5 percent of Greenland's ice sheet area. The ice stream's speed-up and near-doubling of ice flow from land into the ocean has increased the rate of sea level rise by about .06 millimeters (about .002 inches) per year, or roughly 4 percent of the 20th century rate of sea level increase. This animation shows the glacier's flow in 2000, along with changes in the glacier's calving front between 2001 and 2006.
Completed 2006-09-12
Jakobshavn Glacier Flow in t …
Title Jakobshavn Glacier Flow in the year 2000 and Calving Front Retreat from 2001 to 2006
Abstract Since measurements of Jakobshavn Isbrae were first taken in 1850, the glacier has gradually receded, finally coming to rest at a certain point for the past 5 decades. However, from 1997 to 2006, the glacier has begun to recede again, this time almost doubling in speed. The finding is important for many reasons. As more ice moves from glaciers on land into the ocean, it raises sea levels. Jakobshavn Isbrae is Greenland's largest outlet glacier, draining 6.5 percent of Greenland's ice sheet area. The ice stream's speed-up and near-doubling of ice flow from land into the ocean has increased the rate of sea level rise by about .06 millimeters (about .002 inches) per year, or roughly 4 percent of the 20th century rate of sea level increase. This animation shows the glacier's flow in 2000, along with changes in the glacier's calving front between 2001 and 2006.
Completed 2006-09-12
Jakobshavn Glacier Flow in t …
Title Jakobshavn Glacier Flow in the year 2000 and Calving Front Retreat from 2001 to 2006
Abstract Since measurements of Jakobshavn Isbrae were first taken in 1850, the glacier has gradually receded, finally coming to rest at a certain point for the past 5 decades. However, from 1997 to 2006, the glacier has begun to recede again, this time almost doubling in speed. The finding is important for many reasons. As more ice moves from glaciers on land into the ocean, it raises sea levels. Jakobshavn Isbrae is Greenland's largest outlet glacier, draining 6.5 percent of Greenland's ice sheet area. The ice stream's speed-up and near-doubling of ice flow from land into the ocean has increased the rate of sea level rise by about .06 millimeters (about .002 inches) per year, or roughly 4 percent of the 20th century rate of sea level increase. This animation shows the glacier's flow in 2000, along with changes in the glacier's calving front between 2001 and 2006.
Completed 2006-09-12
Jakobshavn Glacier Flow in t …
Title Jakobshavn Glacier Flow in the year 2000 and Calving Front Retreat from 2001 to 2006
Abstract Since measurements of Jakobshavn Isbrae were first taken in 1850, the glacier has gradually receded, finally coming to rest at a certain point for the past 5 decades. However, from 1997 to 2006, the glacier has begun to recede again, this time almost doubling in speed. The finding is important for many reasons. As more ice moves from glaciers on land into the ocean, it raises sea levels. Jakobshavn Isbrae is Greenland's largest outlet glacier, draining 6.5 percent of Greenland's ice sheet area. The ice stream's speed-up and near-doubling of ice flow from land into the ocean has increased the rate of sea level rise by about .06 millimeters (about .002 inches) per year, or roughly 4 percent of the 20th century rate of sea level increase. This animation shows the glacier's flow in 2000, along with changes in the glacier's calving front between 2001 and 2006.
Completed 2006-09-12
Activity on Nyiragongo
Title Activity on Nyiragongo
Description On June 19, 2007, Mount Nyiragongo released a plume. The Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov ] on NASA's Terra [ http://terra.nasa.gov ] satellite took this picture the same day. In this image, the blue-tinted plume blows over Lake Kivu toward the southeast. The plume's light color suggests that it consists primarily of water vapor. A bright, opaque white puff at the volcano's summit could be part of the plume, but it is more likely a patch of clouds. Clouds also hover over neighboring Mount Nyamuragira, to the northwest.Nyiragongo [ http://www.volcano.si.edu/world/volcano.cfm?vnum=0203-03= ] is a stratovolcano—a steep-sloped cone composed of alternating layers of hardened lava, solidified ash, and rocks ejected by previous eruptions. For five decades, the volcano cradled an active lava lake in its summit crater. The lava lake drained in 1977, causing numerous fatalities. In 2002, lava flows from the volcano covered parts of the nearby city of Goma. Neighboring Nyamuragira [ http://www.volcano.si.edu/world/volcano.cfm?vnum=0203-02= ] (also known as Mount Nyamulagira) is a shield volcano—a shallow-sloped volcano resembling a giant warrior shield—formed from hardened lava flows. Despite its lower profile, it, too, harbored a lava lake in its summit crater. That lake drained in 1938, at the same time as a major eruption from one of the volcano's flanks. Historically, lava flows from this volcano have reached Lake Kivu. This volcano experienced a significant eruption in November 2006. [ http://earthobservatory.nasa.gov/Newsroom/NewImages/images_topic.php3?topic=land&img_id=17483 ] You can download a 250-meter-resolution KMZ file of Nyiragongo [ http://earthobservatory.nasa.gov/NaturalHazards/Archive/Jun2007/nyiragongo_tmo_2007170.kmz ] for use with Google Earth. [ http://earth.google.com/download-earth.html ] NASA image created by Jesse Allen, using data provided courtesy of the MODIS Rapid Response [ http://rapidfire.sci.gsfc.nasa.gov/ ] team.
Haze over Eastern China
Title Haze over Eastern China
Description A thick band of haze hung over the low-lying coastal basin of eastern China on September 17, 2006. The Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov ] on NASA's Terra [ http://terra.nasa.gov/ ] satellite took this picture the same day. The smoggy blanket stretched from Beijing in the north to beyond Shanghai (hidden by clouds and haze in the lower right corner of the scene). The haze is especially thick just east of the Taihang Shan range that runs southward from the capital city along the western edge of the coastal plain. The haze is darker and fuzzier than the bright white clouds in this image. Also visible is thick, tan-colored sediment in the waters along the coastline. The Beijing region of China is one of the world's most densely populated areas, producing its share of urban and industrial smog. Beneath the haze, a scattering of small tan circles—cities—dot the green vegetation of the plain. Agricultural fires in the region may have added to the haze. Even though the amount of haze being generated at the time of the image might not have been above normal, weather conditions may have been responsible for keep the pollution trapped over the area. Typhoon Shanshan, [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=13864 ] located offshore to the east, may have been trapping the air over the region, preventing the haze from dispersing over the ocean. A similar situation occurred in the United States in the summer of 2002, [ http://earthobservatory.nasa.gov/Study/IDEA/ ] when Hurricane Gustav off the Carolinas prevented hazy air in the Southeast from dispersing over the Atlantic Ocean, and then Tropical Storm Hannah in the Gulf of Mexico kept it from escaping to the south. Air quality across the South and Southeast was compromised for many days during the event. NASA image courtesy the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC. The Rapid Response Team provides daily images [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?FAS_China4 ] of this region.
Tropical Storm Ioke
Title Tropical Storm Ioke
Description Hurricane Ioke started as all tropical cyclones do, as a depression—an area of low atmospheric pressure. After forming on August 19, 2006, the depression quickly developed into a tropical storm, the threshold for earning a name. Ioke is the Hawaiian word for the name "Joyce." Storms and hurricanes in the central Pacific are unusual, but they occur often enough for there to be a naming convention, applied by the Central Pacific Hurricane Center in Honolulu. The last named central Pacific storm was Huko in 2002. Ioke rose all the way to hurricane strength in less than 24 hours. This image of Hurricane Ioke shows the powerful Category 4 hurricane [ http://www.nhc.noaa.gov/aboutsshs.shtml ] as it was passing south of the Hawaiian Islands. The image was taken by the Tropical Rainfall Measuring Mission (TRMM) [ http://trmm.gsfc.nasa.gov/ ] satellite at 20:45 UTC (9:45 a.m. HST) on August 21, 2006, and it shows the horizontal pattern of rain intensity within Ioke. Rain rates in the center of the swath are from the TRMM Precipitation Radar, and those in the outer swath come from the TRMM Microwave Imager. The rain rates are overlaid on infrared data from the TRMM Visible Infrared Scanner. A well-defined eye (dark center) marks the center of Ioke. This eye is surrounded by an area of very intense rain on the western side, which is part of the eyewall (dark red arc). Rain bands spiral inwards towards the center (large blue arcs) and transition into an area of moderate rain (green area) as they approach the eyewall. These features are typical of a mature, intense hurricane. At the time of this image, Ioke was estimated to have sustained winds of 184 kilometers per hour (132 miles per hour) by the Central Pacific Hurricane Center. The TRMM satellite was placed into service in November 1997. From its low-earth orbit, TRMM has been providing valuable images and information on storm systems around the tropics using a combination of passive microwave and active radar sensors, including the first precipitation radar in space. TRMM is a joint mission between NASA and the Japanese space agency, JAXA. Images produced by Hal Pierce (SSAI/NASA GSFC) and caption by Steve Lang (SSAI/NASA GSFC).
Tropical Storm Ioke
Title Tropical Storm Ioke
Description Hurricane Ioke started as all tropical cyclones do, as a depression—an area of low atmospheric pressure. After forming August 19, 2006, the depression quickly developed into a tropical storm, the threshold for earning a name. Ioke is the Hawaiian word for the name "Joyce." Storms and hurricanes in the central Pacific are unusual, but they occur often enough for there to be a naming convention, applied by the Central Pacific Hurricane Center in Honolulu. The last named central Pacific storm was Huko in 2002. Ioke rose all the way to hurricane strength in less than 24 hours. This photo-like image was acquired by the Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov/ ] on the Aqua [ http://aqua.nasa.gov/ ] satellite on August 23, 2006, at 2:15 p.m. local time (August 24 at 00:15 UTC). Hurricane Ioke at the time of this image had a well-defined round shape and basic spiral-arm structure, but no clear eye or obvious strong thunderstorm zones (which often appear as "boiling" clouds). Nevertheless, Hurricane Ioke had sustained winds of around 185 kilometers per hour (115 miles per hour), according to the University of Hawaii's Tropical Storm Information Center. [ http://www.solar.ifa.hawaii.edu/Tropical/tropical.html ] NASA image created by Jesse Allen, Earth Observatory, using data provided courtesy of the MODIS Rapid Response [ http://rapidfire.sci.gsfc.nasa.gov/ ] team.
Tropical Storm Ioke
Title Tropical Storm Ioke
Description Hurricane Ioke started as all tropical cyclones do, as a depression—an area of low atmospheric pressure. After forming August 19, 2006, the depression quickly developed into a tropical storm, the threshold for earning a name. Ioke is the Hawaiian word for the name "Joyce." Storms and hurricanes in the central Pacific are unusual, but they occur often enough for there to be a naming convention, applied by the Central Pacific Hurricane Center in Honolulu. The last named central Pacific storm was Huko in 2002. Ioke rose all the way to hurricane strength in less than 24 hours. This photo-like image was acquired by the Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov/ ] on the Terra [ http://terra.nasa.gov/ ] satellite on August 24, 2006, at 11:55 a.m. local time (21:55 UTC). Hurricane Ioke at the time of this image had a well-defined round shape, clear spiral-arm structure, and a distinct but cloud-filled (or "closed") eye. The University of Hawaii's Tropical Storm Information Center [ http://www.solar.ifa.hawaii.edu/Tropical/tropical.html ] reported that Hurricane Ioke had sustained winds of around 255 kilometers per hour (160 miles per hour) at the time this satellite image was acquired. NASA image created by Jesse Allen, Earth Observatory, using data provided by the MODIS Rapid Response [ http://rapidfire.sci.gsfc.nasa.gov/ ] team.
Tropical Storm Ioke
Title Tropical Storm Ioke
Description Super Typhoon Ioke started as all tropical cyclones do, as a depression—an area of low atmospheric pressure. After forming August 19, 2006, the depression quickly developed into a tropical storm, the threshold for earning a name. Ioke is the Hawaiian word for the name Joyce. Storms and hurricanes in the central Pacific are unusual, but they occur often enough for there to be a naming convention, applied by the Central Pacific Hurricane Center in Honolulu. The last named central Pacific storm was Huko in 2002. Ioke rose all the way to hurricane strength in less than 24 hours. Ioke also performed another unusual trick, crossing the International Date Line on August 27, which by convention meant the tropical cyclone was then called a typhoon instead of a hurricane. Technically, Ioke became a super typhoon [typhoons with sustained winds over 240 kilometers per hour (150 miles per hour)] on August 24, but it retained the title of hurricane until it crossed into the typhoon region. With warm seas beneath it, little high-altitude wind shear to tear it apart, and no significant land in its way to disrupt it, the cyclone was expected (as of August 30) to continue to churn across the central Pacific at super typhoon strength for several days. This photo-like image was acquired by the Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov/ ] on NASA's Terra [ http://terra.nasa.gov/ ] satellite on August 29, 2006, at 11:30 a.m. local time (23:10 UTC August 28). Super Typhoon Ioke at the time of this image had a well-defined round shape, distinct spiral-arm structure, and an only slightly cloud-filled (or "partially closed") eye. The University of Hawaii's Tropical Storm Information Center [ http://www.solar.ifa.hawaii.edu/Tropical/tropical.html ] reported that Super Typhoon Ioke had sustained winds of around 245 kilometers per hour (155 miles per hour) at the time this satellite image was acquired. Super Typhoon Ioke may not be encountering any landmass capable of disrupting the Category 5 typhoon, [ http://www.nhc.noaa.gov/aboutsshs.shtml ] but that does not mean there is no land in its way at all. Wake Island is a small atoll island with a small population serving a military and civilian base. All the residents were evacuated in recent days in anticipation of the arrival of Super Typhoon Ioke. As there are no tall land features on the island, it is quite possible that storm surge from the typhoon will send water cascading over the entire island, submerging it. Only the most sturdy structures were likely to survive the onslaught of storm surge, surf, and powerful winds, according to the Associated Press. NASA image created by Jesse Allen, Earth Observatory, using data provided courtesy of the MODIS Rapid Response [ http://rapidfire.sci.gsfc.nasa.gov/ ] team.
Tropical Storm Ioke
Title Tropical Storm Ioke
Description Typhoon Ioke started as all tropical cyclones do, as a depression—an area of low atmospheric pressure. After forming on August 19, 2006, the depression quickly developed into a tropical storm, the threshold for earning a name. Ioke is the Hawaiian word for the name Joyce. Storms and hurricanes in the central Pacific are unusual, but they occur often enough for there to be a naming convention, applied by the Central Pacific Hurricane Center in Honolulu. The last named central Pacific storm was Huko in 2002. Ioke rose all the way to hurricane strength in less than 24 hours. Ioke also performed another unusual trick, crossing the International Date Line on August 27, which by convention means the tropical cyclone was then called a typhoon instead of a hurricane. This photo-like image was acquired by the Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov/ ] on the Aqua [ http://aqua.nasa.gov/ ] satellite on August 28, 2006, at 1:30 p.m. local time (01:30 UTC). Typhoon Ioke at the time of this image had a well-defined round shape, clear spiral-arm structure, and a distinct but cloud-filled (or "closed") eye. The University of Hawaii's Tropical Storm Information Center [ http://www.solar.ifa.hawaii.edu/Tropical/tropical.html ] reported that Typhoon Ioke had sustained winds of around 245 kilometers per hour (155 miles per hour) at the time this satellite image was acquired. NASA image created by Jesse Allen, Earth Observatory, using data obtained courtesy of the MODIS Rapid Response [ http://rapidfire.sci.gsfc.nasa.gov/ ] team.
1-45 of 45