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Images of Bangladesh and Goddard Space Flight Center (GSFC) from 2007
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Haze and Sediment in Banglad
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| Title |
Haze and Sediment in Bangladesh and India |
| Description |
More haze hugged the Himalaya Mountains on January 21, 2007, clouding the skies over northern India, Nepal, and Bangladesh. In the south, thick sediment clogged the mouth of the Ganges. During the Northern Hemisphere winter, haze often collects at the base of the mountains, trapped there in part by weather systems. Sediment flowing from the mouth of the Ganges is a natural occurrence, but it can be exacerbated by land-use changes as an area industrializes. The Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov ] on NASA's Terra [ http://terra.nasa.gov ] satellite took this picture on January 21, 2007. In this image, the haze appears as a dingy, gray-beige fog over the region, pushing south into Bangladesh. Skies are clearer to the south, and this image offers a clear view of the Sundarbans [ http://en.wikipedia.org/wiki/Sundarbans ] that straddle the border between India and Bangladesh. In the east, the land surface vaguely resembles marbled paper [ http://www.gilesorr.com/Venice/marbled/ ]—the result of the same continental collision that formed the Himalayas. NASA image by Jeff Schmaltz, MODIS Rapid Response Team, [ http://rapidfire.sci.gsfc.nasa.gov ] Goddard Space Flight Center. |
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Haze and Sediment in Banglad
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| Title |
Haze and Sediment in Bangladesh and India |
| Description |
On January 27, 2007, haze sprawled from the southern edge of the Himalaya Mountains southward over the Bay of Bengal. In between, it clouded the skies over northern India and Bangladesh. In the south, thick sediment colored the Mouth of the Ganges shades of pale brown and blue-green. Such sediment is a natural occurrence, although land-use changes such as deforestation and agriculture can increase the sediment volume. The haze, mostly a mixture of urban and industrial pollution, often collects at the base of the mountains in the wintertime. The Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov ] on NASA's Aqua [ http://aqua.nasa.gov ] satellite captured this image on January 27, 2007. In this image, the haze appears thickest in the northwest. It thins toward the south, but haze is still clearly visible over the ocean. The haze appears to follow a distinct path toward the ocean, concentrating over the border between India and western Bangladesh. Farther west in India, and on the east side of Bangladesh, skies appear clear. Along the coastline of India and Bangladesh, the dark green Sundarbans [ http://en.wikipedia.org/wiki/Sundarbans ] mangrove forests stand out from the otherwise brown landscape. NASA image by Jeff Schmaltz, MODIS Rapid Response Team, [ http://rapidfire.sci.gsfc.nasa.gov ] Goddard Space Flight Center. |
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Fires in Myanmar
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Fires in Myanmar |
| Description |
Scores, possibly hundreds, of fires were detected by the Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov ] on NASA's Aqua [ http://aqua.nasa.gov ] satellite when it passed over Southeast Asia on April 4, 2007. Places where the sensor detected actively burning fires are marked with red dots. The dry season is drawing to a close across much of Southeast Asia, and agricultural burning is widespread. Intentional fires also get out of control and burn into nearby forests. Thick smoke often becomes a problem in the spring months in the region, creating health problems and interfering with transportation. This image is centered on Myanmar, but biomass burning is widespread across most of Southeast Asia [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=14193 ] in the Northern Hemisphere spring. Though it is not necessarily immediately hazardous, such large-scale burning can have a strong impact on weather, climate, human health, and natural resources. 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/subsets/?FAS_Bangladesh/2007093 ] images of the region in additional resolutions and formats. NASA image courtesy the MODIS Rapid Response Team, [ http://rapidfire.sci.gsfc.nasa.gov ] Goddard Space Flight Center |
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Tropical Cyclone Sidr
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Tropical Cyclone Sidr |
| Description |
Tropical Cyclone Sidr was continuing its northward progress over the Bay of Bengal on November 14, 2007. It was moving north toward the Mouths of the Ganges at a speed of 13 kilometers per hour (8 miles per hour), and winds in the storm system were raging at 220 km/hr (140 mph) near the storm's center, making it a Category 4 strength [ http://www.nhc.noaa.gov/aboutsshs.shtml ] tropical cyclone. 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 at 10:15 a.m. local time (4:45 UTC) on November 14, 2007. Tropical Cyclone Sidr appears here as a well-developed and distinct ball of circling clouds, the storm has a distinct but cloudy eye at its center. An extended arm of clouds reaches northward from the storm across Bangladesh, bringing the influence of the storm onshore already even though it was hundreds of kilometers to the south. Western Bangladesh, where the storm appeared to be headed as of November 15, is the most heavily populated low-lying area in the world, with a history of severe causalities from previous storms due to both direct flooding and storm surge. The Joint Typhoon Warning Center [ https://metocph.nmci.navy.mil/jtwc.php ] was predicting that the storm would weaken, but still make landfall with hurricane-force winds. In 1970, a Category 3 storm that made landfall in the same vicinity caused 300,000 deaths and was one of the most deadly natural disasters in modern history. Another 138,000 people perished in 1991 from another such cyclone. NASA image created by Jesse Allen, using data provided courtesy of the MODIS Rapid Response [ http://rapidfire.sci.gsfc.nasa.gov/ ] team. |
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Tropical Cyclone Sidr
| Title |
Tropical Cyclone Sidr |
| Description |
Tropical Cyclone Sidr was moving north toward the Mouths of the Ganges at a speed of 17 kilometers per hour (10 miles per hour) on November 15, 2007. Winds in the storm's center were raging at 240 km/hr (150 mph), making it a very strong Category 4 [ http://www.nhc.noaa.gov/aboutsshs.shtml ] tropical cyclone, according to the Joint Typhoon Warning Center. [ https://metocph.nmci.navy.mil/jtwc.php ] The Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Aqua [ http://aqua.nasa.gov/ ] satellite acquired this photo-like image at 1:25 p.m. local time (6:55 UTC) on November 15, 2007. With its densely wound clouds and distinct eye, Tropical Cyclone Sidr has the appearance of a well-developed system. The northernmost fringes of the storm already cloud the skies over Bangladesh and India. Western Bangladesh, where the storm appeared to be headed as of November 15, is the most heavily populated low-lying area in the world, with a history of severe causalities from previous storms due to both direct flooding and storm surge. The Joint Typhoon Warning Center [ https://metocph.nmci.navy.mil/jtwc.php ] predicted that the storm would weaken as it made landfall, but would maintain hurricane-force winds well after it moves inland. In 1970, a Category 3 storm that made landfall in the same vicinity caused 300,000 deaths and was one of the most deadly natural disasters in modern history. Another 138,000 people perished in 1991 from a similar cyclone. NASA image created by Jesse Allen, using data provided courtesy of the MODIS Rapid Response [ http://rapidfire.sci.gsfc.nasa.gov/ ] team. |
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Tropical Cyclone Sidr
| Title |
Tropical Cyclone Sidr |
| Description |
Tropical Cyclone Sidr had been moving slowly north and gathering power as it drew closer to the coastline around the Mouth of the Ganges. However, in the hours before landfall, according to the Joint Typhoon Warning Center, [ https://metocph.nmci.navy.mil/jtwc.php ] the powerful Category 4 [ http://www.nhc.noaa.gov/aboutsshs.shtml ] cyclone lost strength and picked up its speed. As of November 16, peak winds had fallen to 110 kilometers per hour (70 miles per hour) and the storm was moving inland at 50 km/hr (30 mph). 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 at 11:35 a.m. local time (6:05 UTC) on November 16, 2007. The storm appears to have no particular organization, dramatically different from just one day earlier, when it was an unmistakably powerful cyclone. As of November 16, sources such as the International Herald Tribune were reporting casualties from Sidr of perhaps 200 people in Bangladesh. India was largely spared from the storm. Evacuations had removed hundreds of thousands of people in both countries ahead of the storm. The storm surge and rain did flood many areas, overwhelming some protective dikes, burying fields under water, and washing away many mud homes in the coastal area. Power lines were toppled in many areas, and all of Bangladesh was without power for several hours during the height of the storm. Western Bangladesh, where the storm made landfall, is the most heavily populated low-lying area in the world, with a history of severe causalities from previous storms due to both direct flooding and storm surge. In 1970, a Category 3 storm that made landfall in the same vicinity caused 300,000 deaths and was one of the most deadly natural disasters in modern history. Another 138,000 people perished in 1991 from a similar cyclone. NASA image created by Jesse Allen, using data provided by the MODIS Rapid Response [ http://rapidfire.sci.gsfc.nasa.gov/ ] team. |
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Flooding in Eastern India
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Flooding in Eastern India |
| Description |
India's annual monsoon triggered widespread flooding throughout the country in early July 2007. In West Bengal, ABC News [ http://www.abc.net.au/news/stories/2007/07/08/1972766.htm ] reported, nearly a million people were stranded by flooding. Every major river in the East Indian state was swollen from torrential rain and releases from too-full reservoirs, ABC added. As of July 10, at least 187 people had died and 7 million had been affected by flooding across India, said Reuters. [ http://www.reuters.com/article/homepageCrisis/idUSDEL267798._CH_.2400 ] This image shows extensive flooding in West Bengal (top) and northern Orissa (lower left) as seen by the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) flying on NASA's Terra [ http://terra.nasa.gov/ ] satellite on July 9, 2007. The lower image was taken on May 31, before the monsoon rains started. In this type of image, water is typically black, as seen in the Bay of Bengal. However, the water is heavily laden with mud in the flooded landscape, so its coloring is light blue. The extensive floods cut between the channels of the Ganges River, which flow into the Bay of Bengal in the center of the image, and extend southwest along the coast. Additional flooding is visible in the large image, which shows a broader area. Clouds, which appear light blue and white in this image made from infrared and visible light, cover the floods in Bangladesh to the east. In addition to causing floods, the monsoon rains have brought new life to eastern India. The landscape has gone from the tan-pink of bare earth to the bright green that indicates plant cover. You can download a 250-meter-resolution KMZ file of the flooding [ http://earthobservatory.nasa.gov/NaturalHazards/Archive/Jul2007/eindia_tmo_2007190.kmz ] and comparison imagery from May 31, suitable for use with Google Earth. [ http://earth.google.com/ ] NASA image created by Jesse Allen, using data provided courtesy of the MODIS Rapid Response [ http://rapidfire.sci.gsfc.nasa.gov/ ] team. |
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Flooding in Eastern India
| Title |
Flooding in Eastern India |
| Description |
India's annual monsoon triggered widespread flooding throughout the country in early July 2007. In West Bengal, ABC News [ http://www.abc.net.au/news/stories/2007/07/08/1972766.htm ] reported, nearly a million people were stranded by flooding. Every major river in the East Indian state was swollen from torrential rain and releases from too-full reservoirs, ABC added. As of July 10, at least 187 people had died and 7 million had been affected by flooding across India, said Reuters. [ http://www.reuters.com/article/homepageCrisis/idUSDEL267798._CH_.2400 ] This image shows extensive flooding in West Bengal (top) and northern Orissa (lower left) as seen by the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) flying on NASA's Terra [ http://terra.nasa.gov/ ] satellite on July 9, 2007. The lower image was taken on May 31, before the monsoon rains started. In this type of image, water is typically black, as seen in the Bay of Bengal. However, the water is heavily laden with mud in the flooded landscape, so its coloring is light blue. The extensive floods cut between the channels of the Ganges River, which flow into the Bay of Bengal in the center of the image, and extend southwest along the coast. Additional flooding is visible in the large image, which shows a broader area. Clouds, which appear light blue and white in this image made from infrared and visible light, cover the floods in Bangladesh to the east. In addition to causing floods, the monsoon rains have brought new life to eastern India. The landscape has gone from the tan-pink of bare earth to the bright green that indicates plant cover. You can download a 250-meter-resolution KMZ file of the flooding [ http://earthobservatory.nasa.gov/NaturalHazards/Archive/Jul2007/eindia_tmo_2007190.kmz ] and comparison imagery from May 31, suitable for use with Google Earth. [ http://earth.google.com/ ] NASA image created by Jesse Allen, using data provided courtesy of the MODIS Rapid Response [ http://rapidfire.sci.gsfc.nasa.gov/ ] 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
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| Title |
Flooding in India and Bangladesh |
| Description |
Just as the summer floods were starting to subside, September brought more rain to South Asia. The heavy monsoon rain pushed rivers in Northeast India, Nepal, and Bangladesh over their banks and forced more than a million people from their homes. These images show floods on the Sapt Kosi River in northern India. The river curves from Nepal across the Ganges Plain, where it eventually joins the Ganges River. Flowing from the Himalaya Mountains, the river is prone to flooding in the summer when snow melt combines with monsoon rains to increase the river's flow. It is one the the major tributaries of the Ganges River. The contrast between winter and spring's dry-season water levels and late-summer, rainy-season water levels is illustrated by this pair of images. The left image was taken on September 11, 2007, after several days of heavy rain. The right image is from May 22, 2007, just before the summer monsoon started. In September, the river was several kilometers wider than it had been in late May. The water is light blue, an indication that it is muddy. Though the river was widest in India, it was also swollen in Nepal. In the days that preceded September 11, heavy rains triggered floods and landslides along rivers throughout Nepal, leaving at least 15 dead, reported the Agence France-Presse [ http://www.reliefweb.int/rw/rwb.nsf/db900sid/SODA-76W4RF?OpenDocument&rc=3&emid=FL-2007-000129-PAK ] on September 9. Along the bottom of the image, the Ganges River was also fuller than it had been earlier in the year. Additional flooding on the Ganges and its tributaries can be seen in the large images, which show a wider view of the Ganges Plain. The images were both captured by the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Terra [ http://terra.nasa.gov/ ] satellite and were made with a combination of infrared and visible light to increase the contrast between water and land. In this type of image, water is black, though sediment can color the water blue. Plant-covered land is bright green, and bare earth or sparsely vegetated land is tan. Clouds are light blue and white. A photo-like [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?FAS_India3/2007254 ] version of the images is available from the MODIS Rapid Response System, which provides daily images of northern India. 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
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| Title |
Flooding in India and Bangladesh |
| Description |
Just as the summer floods were starting to subside, September brought more rain to South Asia. The heavy monsoon rain pushed rivers in Northeast India, Nepal, and Bangladesh over their banks and forced more than a million people from their homes. These images show floods on the Sapt Kosi River in northern India. The river curves from Nepal across the Ganges Plain, where it eventually joins the Ganges River. Flowing from the Himalaya Mountains, the river is prone to flooding in the summer when snow melt combines with monsoon rains to increase the river's flow. It is one the the major tributaries of the Ganges River. The contrast between winter and spring's dry-season water levels and late-summer, rainy-season water levels is illustrated by this pair of images. The left image was taken on September 11, 2007, after several days of heavy rain. The right image is from May 22, 2007, just before the summer monsoon started. In September, the river was several kilometers wider than it had been in late May. The water is light blue, an indication that it is muddy. Though the river was widest in India, it was also swollen in Nepal. In the days that preceded September 11, heavy rains triggered floods and landslides along rivers throughout Nepal, leaving at least 15 dead, reported the Agence France-Presse [ http://www.reliefweb.int/rw/rwb.nsf/db900sid/SODA-76W4RF?OpenDocument&rc=3&emid=FL-2007-000129-PAK ] on September 9. Along the bottom of the image, the Ganges River was also fuller than it had been earlier in the year. Additional flooding on the Ganges and its tributaries can be seen in the large images, which show a wider view of the Ganges Plain. The images were both captured by the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Terra [ http://terra.nasa.gov/ ] satellite and were made with a combination of infrared and visible light to increase the contrast between water and land. In this type of image, water is black, though sediment can color the water blue. Plant-covered land is bright green, and bare earth or sparsely vegetated land is tan. Clouds are light blue and white. A photo-like [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?FAS_India3/2007254 ] version of the images is available from the MODIS Rapid Response System, which provides daily images of northern India. 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
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| 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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Flooding in India and Bangla
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| Title |
Flooding in India and Bangladesh |
| Description |
India's Brahmaputra River was already flooded in early August (bottom image), but those floods turned out to be small compared to the floods that hit the river in early September (top). The river flooded for the third time in 2007 when monsoon rain pounded northeastern India, Bhutan, and Bangladesh in September, reported the BBC [ http://news.bbc.co.uk/2/hi/south_asia/6988590.stm ] on September 11. As these images illustrate, the September floods were the worst of the year, forcing the Indian government to evacuate some 800,000 people from the banks of the river. An additional 500,000 people were evacuated downstream in Bangladesh. The floods damaged crops that had been replanted after the August floods, said the BBC. The Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Aqua [ http://aqua.nasa.gov/ ] satellite captured these images of the swollen river. Both images were made with a combination of infrared and visible light, which makes water appear black or dark blue. Plant-covered land is bright green, and clouds are turquoise and white. In the top image, taken on September 12, the Brahmaputra is more than 25 kilometers wide in places. The braided channels of the river disappeared as water levels rose enough to blend the channels into a single wide, blue ribbon. Tributaries flowing in from the Himalayan kingdom of Bhutan are also swollen. The water is a dusty blue color compared to the dark blue color seen in early August. The lighter shade of blue indicates that the water is thick with sediment, a common sign of recent flooding. MODIS captured the lower image on August 5, 2007, during the year's second round of flooding on the Brahmaputra. The river is wider than it had been during the dry season, [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?FAS_Bangladesh/2007123/FAS_Bangladesh.2007123.aqua.721 ] but it is much smaller than it would become a month later. NASA image 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_Bangladesh/2007255 ] of India and Bangladesh. |
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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. |
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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. |
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Floods in Bangladesh
| Title |
Floods in Bangladesh |
| Description |
Bangladesh's annual monsoon started with unusually heavy rain, intensified by a storm from the Bay of Bengal on June 9-10, 2007. By June 11, more than one-third of the southeastern coastal city of Chittagong was under water, reported the Australian Broadcasting Corporation. [ http://www.abc.net.au/news/newsitems/200706/s1948143.htm ] In addition to the floods, the rains triggered devastating landslides in the deforested hills on which the city is built. The country-wide death toll from the floods and landslides neared 130 on June 12, said Reuters. [ http://www.reliefweb.int/rw/RWB.NSF/db900SID/LRON-744DMF?OpenDocument ] Most of the deaths were a result of the landslides or from buildings collapsing in the rain. This image shows rainfall totals over Bangladesh between June 4 and June 11, 2007. The rainfall totals are from the Multi-satellite Precipitation Analysis, which is based on measurements from the Tropical Rainfall Measuring Mission (TRMM [ http://trmm.gsfc.nasa.gov/ ]) satellite. Rainfall totals range from 0 to 100 millimeters (4 inches), shown in blue, to 400 mm (15.7 inches) to 500 mm (19.7 inches), shown in red. Most of the country received between 200 and 300 millimeters (7.9 to 11.8 inches) of rain during the week-long period, though there are several pockets of heavier rain. Chittagong sits in one such pocket, where up to 400 mm (15.7 inches) of rain fell. TRMM is a joint mission between NASA and the Japanese space agency, JAXA. NASA images produced by Hal Pierce (SSAI/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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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 |
|
Haze and Sediment in Banglad
…
nasa, nasanaturalhazards
More haze hugged the Himalay
…
ge_17934
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007-01-21 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
ge_17934 |
|
Floods in Bangladesh: Natura
…
nasa, nasanaturalhazards
Bangladesh's annual monsoon
…
Bangladesh_TRM_2007162
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007-06-11 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
Bangladesh_TRM_2007162 |
|
Flooding in India and Bangla
…
nasa, nasanaturalhazards
* eoimages.gsfc.nasa.gov/ima
…
SaptKosi_TMO_2007254
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007-09-11 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
SaptKosi_TMO_2007254 |
|
Flooding in India and Bangla
…
nasa, nasanaturalhazards
* eoimages.gsfc.nasa.gov/ima
…
Brahmaputra_AMO_2007255
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007-09-12 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
Brahmaputra_AMO_2007255 |
|
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 |
|
Haze and Sediment in Banglad
…
nasa, nasanaturalhazards
On January 27, 2007, haze sp
…
himben_amo_2007027
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007-01-27 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
himben_amo_2007027 |
|
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