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Floods in Myanmar
| Title |
Floods in Myanmar |
| Description |
With the onset of monsoon rains, the Ayeyarwady River of Myanmar (Burma) more than doubled in size during June. 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 June 21, 2006, nearly one month after the lower image was taken on May 22. By June 21, the winding shape of the river is concealed by the monsoon floods. In the large image, similar flooding is visible farther north. To the left of the river, flood water drenches the ground. The region around this stretch of the river is wetland, and the image may be showing normal rainy-season conditions for the wetland. These images are shown in MODIS' shortwave and near-infrared bands to highlight the presence of water. Clear water is dark blue or black, while sediment-laden water is lighter blue. Clouds are pale blue and white, plant-covered land is green, and bare earth is tan. The large images provided above have a resolution (level of detail) of 250 meters per pixel. Daily images [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?FAS_Bangladesh/2006172 ] of the region are available from the MODIS Rapid Response Team in a variety of resolutions. NASA images courtesy the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC. |
|
Floods in Myanmar
| Title |
Floods in Myanmar |
| Description |
With the onset of monsoon rains, the Ayeyarwady River of Myanmar (Burma) more than doubled in size during June. 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 June 21, 2006, nearly one month after the lower image was taken on May 22. By June 21, the winding shape of the river is concealed by the monsoon floods. In the large image, similar flooding is visible farther north. To the left of the river, flood water drenches the ground. The region around this stretch of the river is wetland, and the image may be showing normal rainy-season conditions for the wetland. These images are shown in MODIS' shortwave and near-infrared bands to highlight the presence of water. Clear water is dark blue or black, while sediment-laden water is lighter blue. Clouds are pale blue and white, plant-covered land is green, and bare earth is tan. The large images provided above have a resolution (level of detail) of 250 meters per pixel. Daily images [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?FAS_Bangladesh/2006172 ] of the region are available from the MODIS Rapid Response Team in a variety of resolutions. NASA images courtesy the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC. |
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Haze along the Himalaya Fron
…
| Title |
Haze along the Himalaya Front Range |
| Description |
A river of haze follows the course of the Ganges River in northern India, flowing eastward along the base of the towering, snow-capped Himalaya Mountains (upper right) before turning south over Bangladesh and then spreading out in gray streamers over the Bay of Bengal in the Indian Ocean (lower right). Although the pollution comes from human activities,?agricultural fires, home heating sources that rely on wood, kerosene, or dung, and industrial and vehicle emissions?it lingers because of topography and atmospheric circulation patterns. In the winter phase of the Indian Ocean Monsoon, winds typically blow seaward, which carries the large, thick "brown cloud" of pollution far out over the ocean. Recently, NASA scientists announced that the visible particles of soot that give the polluted air its name aren't the only component of the brown cloud that the atmosphere transports over long distances. The plume also contains ozone, which is beneficial to humans when it is located way above the Earth in the stratosphere, but harmful when it is located closer to the Earth in the troposphere. Ozone spreads even farther away from the original source than the soot particles. Convection over the ocean sucks the ozone high into the air where it enters wider-scale atmospheric circulation patterns. These patterns spread the ozone westward across the Indian Ocean, Africa, and onward to the Atlantic Ocean. Along the way, the ozone from the Asian brown cloud gets mixed together with ozone from agricultural fires in Africa, as well as with ozone from the stratosphere which occasionally gets mixed down to lower altitudes. The long-range transport of ozone from these sources explains why such high levels of tropospheric ozone are observed in the air over the South Atlantic Ocean, far from the source of the emissions. NASA image created by Jesse Allen, Earth Observatory, using data obtained from the MODIS Rapid Response team. |
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Flooding in Eastern India
| Title |
Flooding in Eastern India |
| Description |
Abutting the southern front of the snow-clad Himalaya Mountains, the broad, flat Ganges Plain is laced with rivers that transport glacial melt to the Bay of Bengal or the Arabian Sea. Not surprisingly, these rivers lead something of a Dr. Jekyll–Mr. Hyde existence: during the dry winter, the rivers are small and sedate, their headwaters largely locked in ice. In the summer, temperatures in the mountains climb, melting mountain-top snow and fueling the Asian monsoon, and the rivers swell into roaring giants. Not every year is the same however—the monsoon may be wetter in a particular year or winter snows might be greater, leading to more snowmelt—and 2007 numbered among the more extreme flood years. Heavy rain throughout July pushed the Ganges and its many tributaries over their banks, submerging large tracts of land in northeastern India. As of August 3, nearly 20 million people had been displaced in India, Bangladesh, and Nepal, and 125 had died in India, reported BBC News. [ http://news.bbc.co.uk/2/hi/south_asia/6927389.stm ] Among the most severely hit states was India's northeastern Bihar state. The Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) flying on NASA's Aqua [ http://aqua.nasa.gov/ ] satellite captured the top image of flooding on the Ganges and its tributaries on August 3, 2007. The lower image, captured by Aqua MODIS on June 4, 2007, shows the plain before the summer monsoon and snowmelt swelled the rivers. In these images (made with a combination of infrared and visible light), water is black or dark blue. Water takes on a brighter shade of blue when tinged with sediment. Clouds, pale blue and white, are scattered over the flooded region, which is bright green with vegetation. Sparsely vegetated areas or bare earth in the lower image are rose-tinted tan. On August 3, the Ganges, Gandak, and Kosi Rivers were so swollen that it was hard to see exactly where the rivers normally flow. The tributaries that feed the Kosi River, not even visible on June 4, have combined in a vast web of water-covered land. The light blue area under the clouds in the lower left corner of the image is probably water-soaked earth, not standing water. Though destructive, seasonal flooding in the Ganges River system blankets the plain with fertile alluvial soil, making it productive farmland. Because the plain is so fertile, it is one of the most densely populated regions on Earth.Daily images [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?FAS_India3/2007215 ] of northeastern India 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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Flooding in India and Bangla
…
| Title |
Flooding in India and Bangladesh |
| Description |
The summer flood season was coming to an end, and rivers were subsiding when late-season monsoon rain triggered a fresh round of flooding in early September 2007. Water levels on the Brahmaputra and the Ganges Rivers simultaneously rose to dangerous levels displacing more than a million people in India and Bangladesh, reported Agence France-Presse and the BBC. This pair of images, collected 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, compares September's flood with the earlier summer flood. To compare these flood scenes to conditions during the dry season, see Floods in Bangladesh. [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=14430 ] Water in these images is blue or black, vegetation is green, and clouds are turquoise and white. The Ganges River and its tributaries, particularly the Sapt Kosi and the Mahananda, were larger on September 10, top, than they had been at the height of the previous summer floods just one month earlier. The most significant flooding, however, was on the Brahmaputra River. In August, the braided channels of the river were still visible despite the floods. By September, the river was so swollen that none of its usual structure was visible. The water was also lighter in color, an indication that it carried more sediment than it did previously. You can download a 250-meter-resolution KMZ file of the floods [ http://earthobservatory.nasa.gov/NaturalHazards/Archive/Sep2007/brahmaputra_amo_2007253.kmz ] suitable for use with Google Earth. [ http://earth.google.com/ ] NASA images created by Jesse Allen, using data obtained from the Goddard Land Processes data archives (LAADS). [ http://ladsweb.nascom.nasa.gov/ ] |
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Flooding in India and Bangla
…
| Title |
Flooding in India and Bangladesh |
| Description |
The summer flood season was coming to an end, and rivers were subsiding when late-season monsoon rain triggered a fresh round of flooding in early September 2007. Water levels on the Brahmaputra and the Ganges Rivers simultaneously rose to dangerous levels displacing more than a million people in India and Bangladesh, reported Agence France-Presse and the BBC. This pair of images, collected 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, compares September's flood with the earlier summer flood. To compare these flood scenes to conditions during the dry season, see Floods in Bangladesh. [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=14430 ] Water in these images is blue or black, vegetation is green, and clouds are turquoise and white. The Ganges River and its tributaries, particularly the Sapt Kosi and the Mahananda, were larger on September 10, top, than they had been at the height of the previous summer floods just one month earlier. The most significant flooding, however, was on the Brahmaputra River. In August, the braided channels of the river were still visible despite the floods. By September, the river was so swollen that none of its usual structure was visible. The water was also lighter in color, an indication that it carried more sediment than it did previously. You can download a 250-meter-resolution KMZ file of the floods [ http://earthobservatory.nasa.gov/NaturalHazards/Archive/Sep2007/brahmaputra_amo_2007253.kmz ] suitable for use with Google Earth. [ http://earth.google.com/ ] NASA images created by Jesse Allen, using data obtained from the Goddard Land Processes data archives (LAADS). [ http://ladsweb.nascom.nasa.gov/ ] |
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Floods in Bangladesh
| Title |
Floods in Bangladesh |
| Description |
By June 20, 2007, the summer's first floods had engulfed northeastern Bangladesh. Monsoon rains routinely flood the low-lying country in the summer, though some years are worse than others. This image, captured by the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Aqua [ http://aqua.nasa.gov/ ] satellite, is centered on the northeast administrative region, Sylhet. Water, dark blue and black in the false-color image, covers most of the region. The floods destroyed several villages, trapped thousands of families, and forced thousands of evacuations, reported the Gulf Times on June 20. Officials were expecting the floods to worsen as monsoon rains continue to fall. The lower image, captured by Terra MODIS, shows Bangladesh on May 1, before the monsoon started. Even during the dry season, the region is spotted with dark pools of water, an indication that the land may be marshy year-round. Both images were made with a combination of infrared and visible light to increase the contrast between water and earth. Plant-covered land is bright green, bare earth is tan, and clouds are light blue and white. The Bangladeshi capital, Dhaka, is a concentrated area of gray in the lower left corner of the image.Daily images [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?FAS_Bangladesh ] 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. |
|
Floods in Bangladesh
| Title |
Floods in Bangladesh |
| Description |
By June 20, 2007, the summer's first floods had engulfed northeastern Bangladesh. Monsoon rains routinely flood the low-lying country in the summer, though some years are worse than others. This image, captured by the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Aqua [ http://aqua.nasa.gov/ ] satellite, is centered on the northeast administrative region, Sylhet. Water, dark blue and black in the false-color image, covers most of the region. The floods destroyed several villages, trapped thousands of families, and forced thousands of evacuations, reported the Gulf Times on June 20. Officials were expecting the floods to worsen as monsoon rains continue to fall. The lower image, captured by Terra MODIS, shows Bangladesh on May 1, before the monsoon started. Even during the dry season, the region is spotted with dark pools of water, an indication that the land may be marshy year-round. Both images were made with a combination of infrared and visible light to increase the contrast between water and earth. Plant-covered land is bright green, bare earth is tan, and clouds are light blue and white. The Bangladeshi capital, Dhaka, is a concentrated area of gray in the lower left corner of the image.Daily images [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?FAS_Bangladesh ] 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. |
|
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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Flooding in India and Bangla
…
nasa, nasanaturalhazards
* eoimages.gsfc.nasa.gov/ima
…
brahmaputra_amo_2007253
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007-09-10 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
brahmaputra_amo_2007253 |
|
Cyclone Nargis Floods Burma
…
nasa, nasanaturalhazards
* eoimages.gsfc.nasa.gov/ima
…
Myanmar_AMO_2008128
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2008-05-07 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
Myanmar_AMO_2008128 |
|
Floods in Bangladesh: Natura
…
nasa, nasanaturalhazards
* eoimages.gsfc.nasa.gov/ima
…
Bangladesh_AMO_2007215
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007-08-03 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
Bangladesh_AMO_2007215 |
|
Monsoon Floods Inundate East
…
nasa, nasaimageofthedaygalle
…
Abutting the southern front
…
Bihar_AMO_2007215
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007-08-03 |
| creator |
NASA -- NASA image courtesy the rapidfire.sci.gsfc.nasa.gov MODIS Rapid Response Team, Goddard Space Flight Center. |
| identifier |
Bihar_AMO_2007215 |
|
Floods in Bangladesh: Natura
…
nasa, nasanaturalhazards
* eoimages.gsfc.nasa.gov/ima
…
Bangladesh_AMO_2007171
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007-06-20 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
Bangladesh_AMO_2007171 |
|
|
