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Aqua of Goddard Space Flight Center (GSFC) from 2007 and July 2007
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Fires in Idaho and Eastern O
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| Title |
Fires in Idaho and Eastern Oregon |
| Description |
Fire activity ramped up across the U.S. West near the end of the third week of July 2007. Dry thunderstorms (lightning and winds, but no rain) ignited hundreds of fires in a matter of days, and many of these became large blazes that raced through dry grass, sagebrush, and forests. This image of southern Idaho and eastern Oregon shows several large fires (outlined in red) billowing out thick clouds of smoke on July 18, 2007. The image and fire detections were captured by the Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov ] on NASA's Aqua [ http://aqua.nasa.gov ] satellite. The large image provided above has a spatial resolution (level of detail) of 250 meters per pixel. The MODIS Rapid Response Team provides twice-daily [ http://rapidfire.sci.gsfc.nasa.gov/fas/?USA1 ] images of the region in additional resolutions and formats, including an infrared-enhanced version that makes burned landscapes stand out in brick red. NASA image courtesy the MODIS Rapid Response Team, [ http://rapidfire.sci.gsfc.nasa.gov ] Goddard Space Flight Center |
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Fires in Nevada
| Title |
Fires in Nevada |
| Description |
Fire activity ramped up across the U.S. West near the end of the third week of July 2007. Dry thunderstorms (lightning and winds, but no rain) ignited hundreds of fires in a matter of days, and many of these became large blazes that raced through dry grass, sagebrush, and forests. This image of Nevada was captured by the Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov ] on NASA's Aqua [ http://aqua.nasa.gov ] satellite on July 18. Places where MODIS detected actively burning fire are outlined in red. Dark brown burn scars dot the buff-colored landscape, while thick smoke stretches north from the fires. Many of the fires are burning along the Interstate 80 corridor, the highway is dotted with small towns that fall along its path: Wells, Elko, Beowawe, Battle Mountain. A few of the largest fires are labeled. Ridgelines appear faint green, lightly covered in vegetation, while dry valleys in between are tan. Rare patches of intensely green vegetation are irrigated fields. South of Wells, Nevada, the forested Ruby Mountains are deep green. The large image provided above has a spatial resolution (level of detail) of 250 meters per pixel. The MODIS Rapid Response Team provides twice-daily [ http://rapidfire.sci.gsfc.nasa.gov/fas/?USA1 ] images of the region in additional resolutions and formats, including an infrared-enhanced version that makes burned landscapes stand out in brick red. NASA image courtesy the MODIS Rapid Response Team, [ http://rapidfire.sci.gsfc.nasa.gov ] Goddard Space Flight Center |
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Fires in Nevada
| Title |
Fires in Nevada |
| Description |
Fire activity ramped up across the U.S. West near the end of the third week of July 2007. Dry thunderstorms (lightning and winds, but no rain) ignited hundreds of fires in a matter of days, and many of these became large blazes that raced through dry grass, sagebrush, and forests. This image of Nevada was captured by the Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov ] on NASA's Aqua [ http://aqua.nasa.gov ] satellite on July 18. Places where MODIS detected actively burning fire are outlined in red. Dark brown burn scars dot the buff-colored landscape, while thick smoke stretches north from the fires. Many of the fires are burning along the Interstate 80 corridor, the highway is dotted with small towns that fall along its path: Wells, Elko, Beowawe, Battle Mountain. A few of the largest fires are labeled. Ridgelines appear faint green, lightly covered in vegetation, while dry valleys in between are tan. Rare patches of intensely green vegetation are irrigated fields. South of Wells, Nevada, the forested Ruby Mountains are deep green. The large image provided above has a spatial resolution (level of detail) of 250 meters per pixel. The MODIS Rapid Response Team provides twice-daily [ http://rapidfire.sci.gsfc.nasa.gov/fas/?USA1 ] images of the region in additional resolutions and formats, including an infrared-enhanced version that makes burned landscapes stand out in brick red. NASA image courtesy the MODIS Rapid Response Team, [ http://rapidfire.sci.gsfc.nasa.gov ] Goddard Space Flight Center |
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Floods in Bangladesh
| Title |
Floods in Bangladesh |
| Description |
A large portion of Bangladesh was awash with floods when the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Aqua [ http://aqua.nasa.gov/ ] satellite captured the top image on August 3, 2007. The low-lying nation is an alluvial delta, and therefore, is extremely prone to flooding. In July 2007, heavy monsoon rains filled the Brahmaputra, Padma, and Meghna Rivers, leading to the floods shown here. The Jamuna, a branch of the Brahmaputra River, arcs through the center of the scene, its braided waterways woven into a single thread where the river is overflowing. A branch of the Jamuna flows east into the Meghna River. The wetlands that surround these rivers are full of water, and the rivers themselves are swollen. The Padma River, formed by the convergence of the Ganges and Jamuna Rivers, is also flooded. The severity of the floods can be seen in the contrast between the top image and the lower image, which was taken on May 1, 2007, before the monsoon rains began. In the dry season, the course of each river is clearly defined, not blurred by excess water. The images were made with infrared and visible light to increase the contrast between water and earth. In this type of image, water is black or blue, where colored with sediment. Plant-covered land is bright green, and bare earth or lightly vegetated areas are tan. Light blue and white clouds dot the scene. In the lower image, red dots mark the location of fires. The floods shown here stranded hundreds of thousands of people in Bangladesh, one of the world's most densely populated nations, reported BBC News. [ http://news.bbc.co.uk/2/hi/south_asia/6927389.stm ] As of August 3, nearly 20 million people had been displaced by monsoon flooding in Bangladesh, India, and Nepal, added BBC. Some of the floods in northeastern India [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=14429 ] were visible when Aqua MODIS flew over on August 3. The intense rains of the summer monsoon typically fall between June and October, so additional flooding is likely.Daily images [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?FAS_Bangladesh/2007215 ] of Bangladesh are available from the MODIS Rapid Response System in both false color, as shown here, and photo-like true color. NASA images courtesy the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC. |
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Floods in Bangladesh
| Title |
Floods in Bangladesh |
| Description |
A large portion of Bangladesh was awash with floods when the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Aqua [ http://aqua.nasa.gov/ ] satellite captured the top image on August 3, 2007. The low-lying nation is an alluvial delta, and therefore, is extremely prone to flooding. In July 2007, heavy monsoon rains filled the Brahmaputra, Padma, and Meghna Rivers, leading to the floods shown here. The Jamuna, a branch of the Brahmaputra River, arcs through the center of the scene, its braided waterways woven into a single thread where the river is overflowing. A branch of the Jamuna flows east into the Meghna River. The wetlands that surround these rivers are full of water, and the rivers themselves are swollen. The Padma River, formed by the convergence of the Ganges and Jamuna Rivers, is also flooded. The severity of the floods can be seen in the contrast between the top image and the lower image, which was taken on May 1, 2007, before the monsoon rains began. In the dry season, the course of each river is clearly defined, not blurred by excess water. The images were made with infrared and visible light to increase the contrast between water and earth. In this type of image, water is black or blue, where colored with sediment. Plant-covered land is bright green, and bare earth or lightly vegetated areas are tan. Light blue and white clouds dot the scene. In the lower image, red dots mark the location of fires. The floods shown here stranded hundreds of thousands of people in Bangladesh, one of the world's most densely populated nations, reported BBC News. [ http://news.bbc.co.uk/2/hi/south_asia/6927389.stm ] As of August 3, nearly 20 million people had been displaced by monsoon flooding in Bangladesh, India, and Nepal, added BBC. Some of the floods in northeastern India [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=14429 ] were visible when Aqua MODIS flew over on August 3. The intense rains of the summer monsoon typically fall between June and October, so additional flooding is likely.Daily images [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?FAS_Bangladesh/2007215 ] of Bangladesh are available from the MODIS Rapid Response System in both false color, as shown here, and photo-like true color. NASA images courtesy the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC. |
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Floods in Central China
| Title |
Floods in Central China |
| Description |
Unusually heavy summer rains led to widespread flooding across central China in June and July 2007. On July 18, 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 flood-swollen Poyang Hu (Hu is Chinese for "lake") in China's southern Jiangxi Province. The lake is the largest fresh-water lake in China, but its size fluctuates seasonally. During the summer rainy season, Poyang Lake can be more than 1,000 square kilometers larger than its dry-season extent. By July 18, the lake was certainly much larger than it had been on May 10, when Aqua [ http://aqua.nasa.gov/ ] MODIS acquired the lower image. In these images, made with a combination of infrared and visible light, water is dark blue or black. Sediment lightens the color of the water. The land around the lake is covered in bright green vegetation spotted with silvery-gray cities. Bare or sparsely vegetated land is tan, and clouds are white and pale blue. The annual flooding on Poyang Lake begins with the southern rainy season during the late spring, and culminates during the summer rains along the Yangtze. For most of the year, the lake drains into the Yangtze River through a channel on its northern shore, but during the mid- to late-summer, the Yangtze runs high, and water flows from the Yangtze into Poyang Lake. The top image reveals that this reversal in flow has probably already started. A plume of dusty blue sedimenta sign of floodingflows into Poyang Lake from the wide channel that leads to the Yangtze River in the north. As of July 16, more than 105 million people had been affected by flooding throughout China since mid-June, with 3.6 million evacuated from their homes, said the International Federation of Red Cross and Red Crescent Societies (IFRC [ http://www.reliefweb.int/rw/RWB.NSF/db900SID/MKOC-757HV6?OpenDocument ]). In mid-July, the most severe flooding occurred on the Huai River, [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=14384 ] north of Poyang Lake. Daily images [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?FAS_China6/2007199 ] of Poyang Lake are available from the MODIS Rapid Response System. NASA image courtesy the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC. |
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Floods in Central China
| Title |
Floods in Central China |
| Description |
Unusually heavy summer rains led to widespread flooding across central China in June and July 2007. On July 18, 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 flood-swollen Poyang Hu (Hu is Chinese for "lake") in China's southern Jiangxi Province. The lake is the largest fresh-water lake in China, but its size fluctuates seasonally. During the summer rainy season, Poyang Lake can be more than 1,000 square kilometers larger than its dry-season extent. By July 18, the lake was certainly much larger than it had been on May 10, when Aqua [ http://aqua.nasa.gov/ ] MODIS acquired the lower image. In these images, made with a combination of infrared and visible light, water is dark blue or black. Sediment lightens the color of the water. The land around the lake is covered in bright green vegetation spotted with silvery-gray cities. Bare or sparsely vegetated land is tan, and clouds are white and pale blue. The annual flooding on Poyang Lake begins with the southern rainy season during the late spring, and culminates during the summer rains along the Yangtze. For most of the year, the lake drains into the Yangtze River through a channel on its northern shore, but during the mid- to late-summer, the Yangtze runs high, and water flows from the Yangtze into Poyang Lake. The top image reveals that this reversal in flow has probably already started. A plume of dusty blue sedimenta sign of floodingflows into Poyang Lake from the wide channel that leads to the Yangtze River in the north. As of July 16, more than 105 million people had been affected by flooding throughout China since mid-June, with 3.6 million evacuated from their homes, said the International Federation of Red Cross and Red Crescent Societies (IFRC [ http://www.reliefweb.int/rw/RWB.NSF/db900SID/MKOC-757HV6?OpenDocument ]). In mid-July, the most severe flooding occurred on the Huai River, [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=14384 ] north of Poyang Lake. Daily images [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?FAS_China6/2007199 ] of Poyang Lake are available from the MODIS Rapid Response System. NASA image courtesy the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC. |
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Floods in Central China
| Title |
Floods in Central China |
| Description |
Apart from being China's second-largest fresh-water lake, Dongting Hu is a natural flood basin for the Yangtze River in central China. Every year, between June and September, the shallow lake fills with water when the Yangtze River rises as a result of melting snow at its headwaters and summer rains along its length. This series of images, captured by the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Aqua [ http://aqua.nasa.gov/ ] and Terra [ http://terra.nasa.gov/ ] satellites, shows the lake filling between May and July 2007. In late May, top, Dongting Lake was nearly dry. A drought the previous year left water levels low. After a rainy June, the lake had grown in three distinct lobes (east, west, and south) as shown in the center image. By July 26, the east and west lobes of Dongting Lake had grown together, and the southern portion of the lake had also filled out. The Yuan and Li Rivers, which feed the lake in the south, were also swollen. Loaded with light-scattering sediment, the water in the rivers is dusty blue, while the clearer or deeper water in the lake is black. The images were made with infrared and visible light to increase the contrast between water and land. Plant-covered land in this richly vegetated region is bright green. Clouds are pale blue and white. The lower image, from July 26, is blurred by a thin veil of haze. Cities, which are most visible along Dongting Lake's eastern shore, are gray-brown. The largest city shown in the images is Yueyang in the top right corner. The floods shown in this image pushed an estimated two billion rats out of their habitat near the lake's shores. The rats swarmed over farmland and destroyed up to 1.6 million hectares (4 million acres) of crops, said China Daily. Dongting Lake is just one region that experienced severe flooding in the summer of 2007. Unusually heavy summer rains caused widespread flooding throughout central China, particularly in the Huai River basin. [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=14384 ] NASA images courtesy the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC, which provides daily images [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?FAS_China6/2007207 ] of China. |
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Floods in Central China
| Title |
Floods in Central China |
| Description |
Apart from being China's second-largest fresh-water lake, Dongting Hu is a natural flood basin for the Yangtze River in central China. Every year, between June and September, the shallow lake fills with water when the Yangtze River rises as a result of melting snow at its headwaters and summer rains along its length. This series of images, captured by the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Aqua [ http://aqua.nasa.gov/ ] and Terra [ http://terra.nasa.gov/ ] satellites, shows the lake filling between May and July 2007. In late May, top, Dongting Lake was nearly dry. A drought the previous year left water levels low. After a rainy June, the lake had grown in three distinct lobes (east, west, and south) as shown in the center image. By July 26, the east and west lobes of Dongting Lake had grown together, and the southern portion of the lake had also filled out. The Yuan and Li Rivers, which feed the lake in the south, were also swollen. Loaded with light-scattering sediment, the water in the rivers is dusty blue, while the clearer or deeper water in the lake is black. The images were made with infrared and visible light to increase the contrast between water and land. Plant-covered land in this richly vegetated region is bright green. Clouds are pale blue and white. The lower image, from July 26, is blurred by a thin veil of haze. Cities, which are most visible along Dongting Lake's eastern shore, are gray-brown. The largest city shown in the images is Yueyang in the top right corner. The floods shown in this image pushed an estimated two billion rats out of their habitat near the lake's shores. The rats swarmed over farmland and destroyed up to 1.6 million hectares (4 million acres) of crops, said China Daily. Dongting Lake is just one region that experienced severe flooding in the summer of 2007. Unusually heavy summer rains caused widespread flooding throughout central China, particularly in the Huai River basin. [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=14384 ] NASA images courtesy the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC, which provides daily images [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?FAS_China6/2007207 ] of China. |
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Floods in Central China
| Title |
Floods in Central China |
| Description |
Apart from being China's second-largest fresh-water lake, Dongting Hu is a natural flood basin for the Yangtze River in central China. Every year, between June and September, the shallow lake fills with water when the Yangtze River rises as a result of melting snow at its headwaters and summer rains along its length. This series of images, captured by the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Aqua [ http://aqua.nasa.gov/ ] and Terra [ http://terra.nasa.gov/ ] satellites, shows the lake filling between May and July 2007. In late May, top, Dongting Lake was nearly dry. A drought the previous year left water levels low. After a rainy June, the lake had grown in three distinct lobes (east, west, and south) as shown in the center image. By July 26, the east and west lobes of Dongting Lake had grown together, and the southern portion of the lake had also filled out. The Yuan and Li Rivers, which feed the lake in the south, were also swollen. Loaded with light-scattering sediment, the water in the rivers is dusty blue, while the clearer or deeper water in the lake is black. The images were made with infrared and visible light to increase the contrast between water and land. Plant-covered land in this richly vegetated region is bright green. Clouds are pale blue and white. The lower image, from July 26, is blurred by a thin veil of haze. Cities, which are most visible along Dongting Lake's eastern shore, are gray-brown. The largest city shown in the images is Yueyang in the top right corner. The floods shown in this image pushed an estimated two billion rats out of their habitat near the lake's shores. The rats swarmed over farmland and destroyed up to 1.6 million hectares (4 million acres) of crops, said China Daily. Dongting Lake is just one region that experienced severe flooding in the summer of 2007. Unusually heavy summer rains caused widespread flooding throughout central China, particularly in the Huai River basin. [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=14384 ] NASA images courtesy the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC, which provides daily images [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?FAS_China6/2007207 ] of China. |
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