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Great Zoom into Houston, Tex …
Title Great Zoom into Houston, Texas: Reliant Stadium
Abstract Using data from different spacecraft and some powerful computer technology, visualizers at the Goddard Space Flight Center present you with a collection of American cities in a way you have never seen them before. Starting with our camera high above the Earth, we rush in towards the surface at what would be an impossible speed for any known vehicle. Passing though layers of atmosphere, the colors of our destinations shimmer with their own unique characteristics, and suddenly we find ourselves floating in virtual space just above the ground. Special thanks to Digital Globe and Space Imaging for providing the highest reolution datasets used. This animation was produced to accompany the NASA/Columbia tribute during the Super Bowl XXXVIII pregame show.
Completed 2004-01-24
Great Zoom out of Houston, T …
Title Great Zoom out of Houston, Texas: Reliant Stadium (with spin)
Abstract Using data from different spacecraft and some powerful computer technology, visualizers at the Goddard Space Flight Center present you with a collection of American cities in a way you have never seen them before. Starting with our camera high above the Earth, we rush in towards the surface at what would be an impossible speed for any known vehicle. Passing though layers of atmosphere, the colors of our destinations shimmer with their own unique characteristics, and suddenly we find ourselves floating in virtual space just above the ground. Special thanks to Digital Globe and Space Imaging for providing the highest reolution datasets used. This animation was produced to accompany the NASA/Columbia tribute during the Super Bowl XXXVIII pregame show.
Completed 2004-01-24
Great Zoom into Houston, Tex …
Title Great Zoom into Houston, Texas: Reliant Stadium (with spin)
Abstract Using data from different spacecraft and some powerful computer technology, visualizers at the Goddard Space Flight Center present you with a collection of American cities in a way you have never seen them before. Starting with our camera high above the Earth, we rush in towards the surface at what would be an impossible speed for any known vehicle. Passing though layers of atmosphere, the colors of our destinations shimmer with their own unique characteristics, and suddenly we find ourselves floating in virtual space just above the ground. Special thanks to Digital Globe and Space Imaging for providing the highest reolution datasets used. This animation was produced to accompany the NASA/Columbia tribute during the Super Bowl XXXVIII pregame show.
Completed 2004-01-24
Great Zoom out of Houston, T …
Title Great Zoom out of Houston, Texas: Reliant Stadium
Abstract Using data from different spacecraft and some powerful computer technology, visualizers at the Goddard Space Flight Center present you with a collection of American cities in a way you have never seen them before. Starting with our camera high above the Earth, we rush in towards the surface at what would be an impossible speed for any known vehicle. Passing though layers of atmosphere, the colors of our destinations shimmer with their own unique characteristics, and suddenly we find ourselves floating in virtual space just above the ground. Special thanks to Digital Globe and Space Imaging for providing the highest reolution datasets used. This animation was produced to accompany the NASA/Columbia tribute during the Super Bowl XXXVIII pregame show.
Completed 2004-01-24
Hurricane Humberto
Title Hurricane Humberto
Description Hurricane Humberto earned its name as a tropical storm on September 12, 2007. Forecasters expected it to intensify only somewhat before hitting the Texas coastline later that day. However, it surprised them by very rapidly intensifying into a Category One hurricane, [ http://www.nhc.noaa.gov/aboutsshs.shtml ] coming ashore early on September 13 with peak sustained winds near 140 kilometers per hour (85 miles per hour), according to the National Hurricane Center. [ http://www.nhc.noaa.gov/index.shtml ] The storm headed inland and arced across Louisiana, bringing heavy rains that prompted flood warnings and watches. Humberto was the third hurricane of the 2007 Atlantic hurricane season. The Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Terra [ http://terra.nasa.gov/ ] satellite acquired this photo-like image of Humberto at 11:55 a.m. local time (16:55 UTC) on September 12, 2007, several hours before the storm came ashore. Hurricane Humberto had the general shape of a hurricane, with spiral arms, cloud bands, and a distinct center. It had not yet developed an obvious eye. In fact, at the time this image was acquired, Humberto had just weakened from a named tropical storm to a tropical depression. Peak winds were around 55 km/hr (35 mph). Instead of continuing to degenerate as forecasters expected, the storm very rapidly re-intensified after this image was taken. NASA image created by Jesse Allen, using data provided courtesy of the MODIS Rapid Response [ http://rapidfire.sci.gsfc.nasa.gov/ ] team.
Hurricane Katrina Erodes the …
Title Hurricane Katrina Erodes the U.S. Gulf Coast
Description Gulf Coast cities weren't the only land surfaces to take a beating from Hurricane Katrina in August 2005. Barrier islands stretching from Texas to Florida were also scoured by the wind and waves of the powerful storm. Permanent changes to the shape and elevation of Timbalier Island and its northeastern companions are visible in this pair of infrared-enhanced images from the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) [ http://asterweb.jpl.nasa.gov ] on NASA's Terra [ http://terra.nasa.gov ] satellite. Timbalier Island, the largest island pictured here, sits at the interface between the Gulf of Mexico (south) and Terrebonne Bay (north) along the Louisiana coast southwest of New Orleans. Compared to the image from 2000 (bottom), a large swath of bright sand dominates the eastern side of Timbalier Island in the September 13 image, having either been piled there or exposed by waves and storm surge. To the east-northeast, two small, curving islands have disappeared completely, while farther north, the fierce seas turned two small slots in a barrier island into a single large gap. NASA images courtesy Jesse Allen, Earth Observatory, using data obtained courtesy of the NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team [ http://asterweb.jpl.nasa.gov/ ]
Hurricane Katrina Erodes the …
Title Hurricane Katrina Erodes the U.S. Gulf Coast
Description Gulf Coast cities weren't the only land surfaces to take a beating from Hurricane Katrina in August 2005. Barrier islands stretching from Texas to Florida were also scoured by the wind and waves of the powerful storm. Permanent changes to the shape and elevation of Timbalier Island and its northeastern companions are visible in this pair of infrared-enhanced images from the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) [ http://asterweb.jpl.nasa.gov ] on NASA's Terra [ http://terra.nasa.gov ] satellite. Timbalier Island, the largest island pictured here, sits at the interface between the Gulf of Mexico (south) and Terrebonne Bay (north) along the Louisiana coast southwest of New Orleans. Compared to the image from 2000 (bottom), a large swath of bright sand dominates the eastern side of Timbalier Island in the September 13 image, having either been piled there or exposed by waves and storm surge. To the east-northeast, two small, curving islands have disappeared completely, while farther north, the fierce seas turned two small slots in a barrier island into a single large gap. NASA images courtesy Jesse Allen, Earth Observatory, using data obtained courtesy of the NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team [ http://asterweb.jpl.nasa.gov/ ]
Hurricane Rita
Title Hurricane Rita
Description Rita became a Category 5 hurricane late on September 21, 2005, with sustained wind speeds of 275 kilometers per hour (170 miles per hour), making it the fourth most powerful storm ever measured. It was easing off this strength slightly by mid-day September 22 when the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Terra [ http://terra.nasa.gov/ ] satellite captured this image at 12:55 p.m., U.S. Eastern time. The storm bears the markings of a powerful hurricane: it is compact and circular, though clouds have formed in the eye of the storm. This closed or "dirty" eye shape is typical of a storm which has reached its peak strength and is slackening. However, Rita remained a remarkably powerful storm. At the time this image was acquired, Rita had winds of 250 kilometers per hour (155 miles per hour) with gusts as high as 310 km/hr (195 mph). Rita is the second Category 5 storm of the 2005 Atlantic hurricane season. The first was Hurricane Katrina, which devastated much of the Mississippi, Louisiana, and Alabama shoreline when it came ashore on August 29. Rita is expected to weaken slightly before coming ashore over the Texas or Louisiana coastline on September 23 or 24 as a major hurricane (Category 3 or higher). In this photo-like image, the Gulf Coast of the United States frames the open water to the north, while the Yucatan Peninsula is visible to the south. The air just below the cloud banks of Rita is remarkably clear, where wind and pressure patterns caused by the storm have banked polluted air away to the north and west. The large image has a resolution of 250 meters per pixel. It is available in additional resolutions [ http://rapidfire.sci.gsfc.nasa.gov/gallery/?2005265-0922/Rita.A2005265.1655 ] from the MODIS Rapid Response Team. For more information about Hurricane Rita, please visit the National Hurricane Center [ http://www.nhc.noaa.gov/ ] web site. NASA image courtesy of Jeff Schmaltz, MODIS Rapid Response Team at NASA GSFC.
Hurricane Rita
Title Hurricane Rita
Description Rita was building into an extremely dangerous Category 5 hurricane when the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Terra [ http://terra.nasa.gov/ ] satellite captured this image at 12:10 p.m., U.S. Eastern time on September 21, 2005. The storm bears the markings of a powerful hurricane: it is compact and circular, with an open eye through which the deep blue waters of the Gulf of Mexico are visible. At the time this image was acquired, Rita had winds of 220 kilometers per hour (140 miles per hour) with gusts to 270 kph (170 mph). Within a few hours, the storm intensified to a Category 5 hurricane with sustained winds of 265 kph (165 mph). Rita is the second Category 5 storm of the 2005 Atlantic hurricane season. The first was Hurricane Katrina, which devastated much of the Mississippi, Louisiana, and Alabama shoreline when it came ashore on August 29. Rita is expected to weaken slightly before coming ashore over the Texas or Louisiana coastline on September 23 or 24 as a major hurricane (Category 3 or higher). In this photo-like image, the Gulf Coast of the United States frames the open water to the north, while the Yucatan Peninsula is visible to the south. MODIS detected several fires, marked with red dots, burning in the southeastern United States. The fires are probably agricultural fires. The large image has a resolution of 500 meters per pixel. It is available in additional resolutions, including MODIS' maximum resolution of 250 meters per pixel, from the MODIS Rapid Response Team. For more information about Hurricane Rita, please visit the National Hurricane Center [ http://www.nhc.noaa.gov/ ] web site. NASA image courtesy Jacques Descloitres, MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC
Hurricane Rita Floods U.S. G …
Title Hurricane Rita Floods U.S. Gulf Coast
Description Hurricane Rita pummeled the Louisiana and Texas shoreline when it came ashore on September 24, 2005. Though the Category 3 storm spared major cities, it left much of the southwestern and central Louisiana shoreline under water. The Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Terra [ http://terra.nasa.gov/ ] satellite captured the top image of the floods on September 25, 2005. The trailing edge of Rita's clouds, light blue and white in this false-color image, still cover the region. The shoreline resembles a line of barrier islands fringing a large bay more than the solid coast that existed four days earlier, lower image. Many of the communities most severely affected by the storm are shown in these images, including hard-hit Lake Charles and Cameron, Louisiana. Lake Charles isn't clearly visible under the clouds, but traces of dark blue beneath the clouds hint at flooding in the region. Cameron and other coastal communities like Pecan Island and Grand Chenier (located on the shore just east of the plume of smoke seen in the lower image) appear to be almost entirely under water. Offshore, sediment swirls in the waters of the Gulf of Mexico, coloring the water blue in contrast to its normal inky black. The sediment is probably a combination of sludge stirred up from the ocean floor when Rita's winds and rains churned Gulf waters and run-off from the extensive flooding seen in this image. The large images provided above are at MODIS' maximum resolution of 250 meters per pixel. The MODIS Rapid Response Team provides daily images [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?USA7 ] of the region in a variety of resolutions. NASA images courtesy the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC.
Hurricane Rita Floods U.S. G …
Title Hurricane Rita Floods U.S. Gulf Coast
Description Hurricane Rita pummeled the Louisiana and Texas shoreline when it came ashore on September 24, 2005. Though the Category 3 storm spared major cities, it left much of the southwestern and central Louisiana shoreline under water. The Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Terra [ http://terra.nasa.gov/ ] satellite captured the top image of the floods on September 25, 2005. The trailing edge of Rita's clouds, light blue and white in this false-color image, still cover the region. The shoreline resembles a line of barrier islands fringing a large bay more than the solid coast that existed four days earlier, lower image. Many of the communities most severely affected by the storm are shown in these images, including hard-hit Lake Charles and Cameron, Louisiana. Lake Charles isn't clearly visible under the clouds, but traces of dark blue beneath the clouds hint at flooding in the region. Cameron and other coastal communities like Pecan Island and Grand Chenier (located on the shore just east of the plume of smoke seen in the lower image) appear to be almost entirely under water. Offshore, sediment swirls in the waters of the Gulf of Mexico, coloring the water blue in contrast to its normal inky black. The sediment is probably a combination of sludge stirred up from the ocean floor when Rita's winds and rains churned Gulf waters and run-off from the extensive flooding seen in this image. The large images provided above are at MODIS' maximum resolution of 250 meters per pixel. The MODIS Rapid Response Team provides daily images [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?USA7 ] of the region in a variety of resolutions. NASA images courtesy the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC.
Fires in Mexico and Central …
Title Fires in Mexico and Central America
Description *large images* MODIS (1.6 MB JPEG) SeaWiFS (1.3 MB JPEG) Smoke from widespread fires in tropical Mexico and Central America appears to be drifting over the U.S. Gulf States. In 1998 similar circumstances resulted in air-quality warnings being issued in several U.S. states, including Texas and Louisiana. The top image shows smoke and fires (red pixels) observed by the Moderate-Resolution Imaging Spectroradiometer (MODIS) aboard NASA?s Terra [ http://earthobservatory.nasa.gov/cgi-bin/redirect?http://terra.nasa.gov/ ] satellite. Possibly hundreds of small fires are scattered across Guatemala, Belize, Honduras, and Mexico?s Yucatan Peninsula. The lower image, acquired by the Sea-viewing Wide Field-of-view Sensor (SeaWiFS), shows smoke from these fires carried by the prevailing winds across the Gulf of Mexico and over the United States. Images courtesy Jacques Descloitres, MODIS Land Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov/ ] at NASA Goddard Space Flight Center and the SeaWiFS Project, [ http://earthobservatory.nasa.gov/cgi-bin/redirect?http://seawifs.gsfc.nasa.gov/SEAWIFS.html ] NASA GSFC, and ORBIMAGE
Fires in Mexico and Central …
Title Fires in Mexico and Central America
Description *large images* MODIS (1.6 MB JPEG) SeaWiFS (1.3 MB JPEG) Smoke from widespread fires in tropical Mexico and Central America appears to be drifting over the U.S. Gulf States. In 1998 similar circumstances resulted in air-quality warnings being issued in several U.S. states, including Texas and Louisiana. The top image shows smoke and fires (red pixels) observed by the Moderate-Resolution Imaging Spectroradiometer (MODIS) aboard NASA?s Terra [ http://earthobservatory.nasa.gov/cgi-bin/redirect?http://terra.nasa.gov/ ] satellite. Possibly hundreds of small fires are scattered across Guatemala, Belize, Honduras, and Mexico?s Yucatan Peninsula. The lower image, acquired by the Sea-viewing Wide Field-of-view Sensor (SeaWiFS), shows smoke from these fires carried by the prevailing winds across the Gulf of Mexico and over the United States. Images courtesy Jacques Descloitres, MODIS Land Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov/ ] at NASA Goddard Space Flight Center and the SeaWiFS Project, [ http://earthobservatory.nasa.gov/cgi-bin/redirect?http://seawifs.gsfc.nasa.gov/SEAWIFS.html ] NASA GSFC, and ORBIMAGE
Smoke from Alaskan Fires ove …
Title Smoke from Alaskan Fires over Louisiana
Description This image of the southern United States from NASA's Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA's Terra satellite is a picture-perfect example of what meteorologists mean when they describe the atmosphere as a fluid. In the center of the image, an airborne river of smoke from fires raging across Alaska is flowing down the Mississippi River corridor and spreading out across the shoreline of the Gulf of Mexico, at the bottom of the scene. Thick smoke hangs over Louisiana (bottom center) as well as Texas, to the west, and Arkansas to the north. MODIS captured the image on July 19, 2004. NASA image courtesy Jacques Descloitres, MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at GSFC
Tropical Storm Allison
Title Tropical Storm Allison
Description The Atlantic Hurricane Season officially began June 1 and almost on cue Tropical Storm Allison formed June 5 in the northwest Gulf of Mexico. A slow-moving storm with sustained winds around 60 miles per hour (97 km per hour), Allison made her way steadily northwestward toward Galveston, Texas. Quite extensive in her reach, Allison packed tropical storm-force winds up to 90 miles (145 km) from the center of the storm. Like an uninvited guest who doesn't know when to leave, Allison is still hanging around a week after she formed, still drawing in moisture from the Gulf and thoroughly soaking the Gulf Coast states from Texas to Florida. In Houston, Texas, Allison dropped as much as 25 inches of rain over the weekend. She dropped another two feet of water in many parts of southern Louisiana. The storm has caused at least 20 fatalities, due to the flooding, high winds and one caused by lightning. In southeastern Texas, roughly 3,500 homes have been damaged by flood waters and many counties have been declared disaster areas. Officials estimate the damage in Texas alone will exceed $1 billion. In this true-color image acquired on June 11 by the Moderate-resolution Imaging Spectroradiometer [ http://earthobservatory.nasa.gov/cgi-bin/redirect?http://modarch.gsfc.nasa.gov/ ] (MODIS), flying aboard NASA's Terra [ http://earthobservatory.nasa.gov/cgi-bin/redirect?http://terra.nasa.gov/ ] satellite, the storm center appears to be located over the Mississippi-Alabama border. Allison continues to move slowly toward the northeast. Today (June 12) her effects are still being felt in the southeastern states of Louisiana, Mississippi, Alabama, Georgia, Florida, and the Carolinas. Meanwhile, the hurricane forecast team at Colorado State University, led by professor William Gray, revised its prediction for the Atlantic Hurricane season. They expect there will be 12 tropical storms this year (up from their original estimate of 10), 7 hurricanes (up from 6), and 3 major hurricanes (up from 2). Image courtesy Jacques Descloitres, MODIS Land [ http://earthobservatory.nasa.gov/cgi-bin/redirect?http://modland.nascom.nasa.gov/ ] Rapid Response Team
Hurricane Humberto: Natural …
nasa, nasanaturalhazards
Hurricane Humberto earned it …
humberto_tmo_2007255
mediatype IMAGE
mediatype image
date 2007-09-12
creator NASA -- NASA Image Of The Day
identifier humberto_tmo_2007255
April Showers Bring May Flow …
nasa, nasaimageofthedaygalle …
Vigorous vegetation growth i …
PIA04358
mediatype IMAGE
mediatype image
date 2004-05-03
creator NASA -- Image courtesy NASA/GSFC/LaRC/JPL, www-misr.jpl.nasa.gov/ MISR Team. Text by Clare Averill (Raytheon ITSS/Jet Propulsion Laboratory).
identifier PIA04358
Smoke from Alaskan Fires ove …
nasa, nasanaturalhazards
This image of the southern U …
ge_13524
mediatype IMAGE
mediatype image
date 2004-07-19
creator NASA -- NASA Image Of The Day
identifier ge_13524
Fires Across South Central U …
nasa, nasanaturalhazards
On Wednesday, October 16, 20 …
Louisiana.TMOA2002289
mediatype IMAGE
mediatype image
date 2002-10-16
creator NASA -- NASA Image Of The Day
identifier Louisiana.TMOA2002289
Hurricane Rita Floods U.S. G …
nasa, nasanaturalhazards
* eoimages.gsfc.nasa.gov/ima …
Louisiana_AMO_2005268
mediatype IMAGE
mediatype image
date 2005-09-25
creator NASA -- NASA Image Of The Day
identifier Louisiana_AMO_2005268
Smoke from Fires in Central …
nasa, nasaimageofthedaygalle …
Smoke from widespread fires …
ge_02414
mediatype IMAGE
mediatype image
date 2002
creator NASA -- Images courtesy Jacques Descloitres, rapidfire.sci.gsfc.nasa.gov/ MODIS Land Rapid Response Team at NASA Goddard Space Flight Center and the seawifs.gsfc.nasa.gov/SEAWIFS.html SeaWiFS Project, NASA GSFC, and ORBIMAGE
identifier ge_02414
Smoke from Fires in Central …
nasa, nasaimageofthedaygalle …
Smoke from widespread fires …
ge_02414
mediatype IMAGE
mediatype image
date 2002
creator NASA -- Images courtesy Jacques Descloitres, rapidfire.sci.gsfc.nasa.gov/ MODIS Land Rapid Response Team at NASA Goddard Space Flight Center and the seawifs.gsfc.nasa.gov/SEAWIFS.html SeaWiFS Project, NASA GSFC, and ORBIMAGE
identifier ge_02414
Smoke from Fires in Central …
nasa, nasaimageofthedaygalle …
Smoke from widespread fires …
ge_02414
mediatype IMAGE
mediatype image
date 2002
creator NASA -- Images courtesy Jacques Descloitres, rapidfire.sci.gsfc.nasa.gov/ MODIS Land Rapid Response Team at NASA Goddard Space Flight Center and the seawifs.gsfc.nasa.gov/SEAWIFS.html SeaWiFS Project, NASA GSFC, and ORBIMAGE
identifier ge_02414
Smoke from Fires in Central …
nasa, nasaimageofthedaygalle …
Smoke from widespread fires …
ge_02414
mediatype IMAGE
mediatype image
date 2002
creator NASA -- Images courtesy Jacques Descloitres, rapidfire.sci.gsfc.nasa.gov/ MODIS Land Rapid Response Team at NASA Goddard Space Flight Center and the seawifs.gsfc.nasa.gov/SEAWIFS.html SeaWiFS Project, NASA GSFC, and ORBIMAGE
identifier ge_02414
Smoke from Fires in Central …
nasa, nasaimageofthedaygalle …
Smoke from widespread fires …
ge_02414
mediatype IMAGE
mediatype image
date 2002
creator NASA -- Images courtesy Jacques Descloitres, rapidfire.sci.gsfc.nasa.gov/ MODIS Land Rapid Response Team at NASA Goddard Space Flight Center and the seawifs.gsfc.nasa.gov/SEAWIFS.html SeaWiFS Project, NASA GSFC, and ORBIMAGE
identifier ge_02414
Hurricane Rita: Natural Haza …
nasa, nasanaturalhazards
Rita became a Category 5 hur …
Rita.A2005265.1655
mediatype IMAGE
mediatype image
date 2005-09-22
creator NASA -- NASA Image Of The Day
identifier Rita.A2005265.1655
Hurricane Rita: Natural Haza …
nasa, nasanaturalhazards
Rita was building into an ex …
Rita_TMO_2005264
mediatype IMAGE
mediatype image
date 2005-09-21
creator NASA -- NASA Image Of The Day
identifier Rita_TMO_2005264
Hole Punch Clouds in Acadian …
nasa, nasaimageofthedaygalle …
On January 29, 2007, inhabit …
ge_07362
mediatype IMAGE
mediatype image
date 2007-01-29
creator NASA -- NASA image by Jeff Schmaltz, rapidfire.sci.gsfc.nasa.gov MODIS Rapid Response Team, Goddard Space Flight Center. Photograph [Copyright] 2007 www.flickr.com/photos/53264279@N00/373967249/ yesitspuzzling. Thanks to J. Marshall Shepherd, University of Georgia, for image interpretation.
identifier ge_07362
Hurricane Katrina Erodes the …
nasa, nasanaturalhazards
* eoimages.gsfc.nasa.gov/ima …
timbalier_ast_13sep05
mediatype IMAGE
mediatype image
date 2005-09-13
creator NASA -- NASA Image Of The Day
identifier timbalier_ast_13sep05
April Showers Bring May Flow …
PIA04358
Sol (our sun)
Multi-angle Imaging SpectroR …
Title April Showers Bring May Flowers to the Southern United States
Original Caption Released with Image Vigorous vegetation growth in the Southern United States after heavy rains fell during April and early May, 2004, is quantified in these images and data products from the Multi-angle Imaging SpectroRadiometer (MISR). The images were acquired on April 1 (top set) and May 3 (bottom set), and extend through Kansas and Missouri, Oklahoma and Arkansas, and eastern Texas, with the Texas-Louisiana border at the bottom right-hand corner. The left-hand images are natural-color views from MISR's nadir camera. In the month between the April and May images, the overall greenness is enhanced, and the Boston and Ouachita Mountains are transformed from brownish hues to vivid green. The city of Dallas, Texas, appears as the pale gray area at lower left and the Red River (which corresponds with the Texas-Oklahoma border) is apparent as the yellowish feature flowing toward the lower left-hand edge. Scattered clouds appear in the upper right-hand corners of both images. Quantitative values for the vegetation changes are provided by the center and right-hand images. The middle panels show Leaf Area Index (LAI), or the area of leaves per unit area of ground below them, as measured from above. The right-hand panels show FPAR, which is the fraction of the photosynthetically active region (PAR) of visible light (400 - 700 nm) absorbed by green vegetation. LAI and FPAR are two important quantities for monitoring the photosynthetic activity and carbon uptake efficiency of live vegetation. MISR's LAI and FPAR products make use of aerosol retrievals to correct for atmospheric scattering and absorption effects, and use plant canopy structural models to determine the partitioning of solar radiation. Both of these aspects are facilitated by the multiangular nature of the MISR measurements. The Multi-angle Imaging SpectroRadiometer observes the daylit Earth continuously and every 9 days views the entire globe between 82 degrees north and 82 degrees south latitude. These data products were generated from a portion of the imagery acquired during Terra orbits 22810 and 23276. The panels cover an area of about 380 kilometers x 704 kilometers, and utilize data from blocks 61 to 65 within World Reference System-2 path 26. MISR was built and is managed by NASA's Jet Propulsion Laboratory, Pasadena, CA, for NASA's Office of Earth Science, Washington, DC. The Terra satellite is managed by NASA's Goddard Space Flight Center, Greenbelt, MD. JPL is a division of the California Institute of Technology.
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