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Drought in East Africa
| Title |
Drought in East Africa |
| Description |
Six successive years of poor rain have left Eastern Africa in severe drought. Rain typically falls between February and June, and 2005 looked promising when rains started to fall in January. The promise dried up, however, when the rains stopped, leaving the latter half of March and the first half of April dry. The cumulative impact of poor rainfall on plants is visible in this vegetation anomaly image. The image was created using data collected by the Advanced Very High Resolution Radiometer between April 11, and April 20, 2005, compared to average conditions. Brown blankets regions where vegetation was less healthy and thick than normal, while green shows thicker vegetation than average. The band of brown that stretches west from Somalia reveals that the poor rainfall has withered vegetation across the region. Rainfall is essential for reviving pastoral lands and filling water catchments in this water-scarce region. Life in the pastoral societies impacted by this drought revolves around livestock. The poor rain and lack of vegetation have led to a decline in milk production and livestock deaths?a formula for famine. Millions throughout Sudan, Eritrea, Ethiopia, Somalia, and Kenya are in need of food aid. In Ethiopia, where 7.5 million require food aid, the most severely affected populations live in the south and the east. This correlates well with the image, which shows the most drought-affected vegetation in southeast Ethiopia. Heavy rains fell in Ethiopia and Somalia in late April, triggering deadly floods [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=12846 ] in southeast Ethiopia. Though tragic, the rains may help alleviate the drought. NASA image created by Jesse Allen, Earth Observatory, using data obtained courtesy of Molly Brown, NASA GIMMS Group [ http://ltpwww.gsfc.nasa.gov/gimms/htdocs/ ] at Goddard Space Flight Center. |
|
Drought in East Africa
| Title |
Drought in East Africa |
| Description |
Six successive years of poor rain have left Eastern Africa in severe drought. Rain typically falls between February and June, and 2005 looked promising when rains started to fall in January. The promise dried up, however, when the rains stopped, leaving the latter half of March and the first half of April dry. The cumulative impact of poor rainfall on plants is visible in this vegetation anomaly image. The image was created using data collected by the Advanced Very High Resolution Radiometer between April 11, and April 20, 2005, compared to average conditions. Brown blankets regions where vegetation was less healthy and thick than normal, while green shows thicker vegetation than average. The band of brown that stretches west from Somalia reveals that the poor rainfall has withered vegetation across the region. Rainfall is essential for reviving pastoral lands and filling water catchments in this water-scarce region. Life in the pastoral societies impacted by this drought revolves around livestock. The poor rain and lack of vegetation have led to a decline in milk production and livestock deaths?a formula for famine. Millions throughout Sudan, Eritrea, Ethiopia, Somalia, and Kenya are in need of food aid. In Ethiopia, where 7.5 million require food aid, the most severely affected populations live in the south and the east. This correlates well with the image, which shows the most drought-affected vegetation in southeast Ethiopia. Heavy rains fell in Ethiopia and Somalia in late April, triggering deadly floods [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=12846 ] in southeast Ethiopia. Though tragic, the rains may help alleviate the drought. NASA image created by Jesse Allen, Earth Observatory, using data obtained courtesy of Molly Brown, NASA GIMMS Group [ http://ltpwww.gsfc.nasa.gov/gimms/htdocs/ ] at Goddard Space Flight Center. |
|
Drought in East Africa
| Title |
Drought in East Africa |
| Description |
The failure of the short-season rains left large sections of East Africa in severe drought in late 2005 and early 2006. In eastern Africa, most areas experience one of two rainfall patterns. Some places have a single "long rains" season that runs from March until November or December. Other areas have two rainy seasons: long rains between March/April and July/August, and "short rains" from October to December or January. The rains recharge lakes and reservoirs and nurture plants from crops and pasture lands to natural vegetation. For East Africa, 2005 was anything but a normal year. The long rainy season produced little rain, and the short rainy season failed altogether. As a result, rainfall totals for the year were only 20-60 percent of normal, depending on the region, reported the Famine Early Warning Network (FEWS NET). The drought's impact on vegetation can be seen in this vegetation index image, collected by the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) at the end of the short rainy season. The image shows how well plants were growing between December 19 and January 3 compared to average conditions between 2000 and 2004. The prevalence of deep reddish-brown across the image indicates that plants were growing poorly, if at all, in the dry conditions. The drought area shown in this image circles Lake Victoria in a north-south-oriented oval that stretches from southern Sudan and Ethiopia in the north to Tanzania in the south. Grey areas show where clouds covered the area throughout the composite period. The impact of the drought has been severe. "This drought has resulted in crop failures, pasture degradation, water shortages, and has raised serious food security concerns for the region," FEWS NET warned. By the end of January 2006, millions were in need of food aid, particularly pastoralists who depend on rain-fed pasture lands to maintain their livestock. Not all of East Africa has been affected. Kenya (center right) had a bumper harvest in 2005, but little of the crop made its way to the drought-hit pastoral districts of the country. NASA image created by Jesse Allen, Earth Observatory, using data provided by Inbal Reshef as part of the Global Agricultural Monitoring Project between NASA, USDA's Foreign Agricultural Service (FAS), and the University of Maryland. More data and information about this joint project is available at Satellite Information for Agricultural Monitoring. [ http://tripwire.geog.umd.edu/usda/ ] |
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East Africa Greens Up from H
…
| Title |
East Africa Greens Up from Heavy Rains |
| Description |
After devastating drought in 2005, eastern Africa experienced heavy rains and flooding during the 2006 "short rains" season that usually lasts from around October until December. Somalia, Ethiopia, Kenya, and Tanzania all experienced significant, sometimes deadly, flooding. [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=14026 ] What has been difficult for people and livestock, however, has been good for vegetation, including grazing areas and croplands. The resulting green-up is evident in this image, which compares satellite-observed vegetation in November 2006 to the average November conditions from 2000-2005. Places where vegetation was more luxuriant than normal are shown in green, while places where vegetation conditions were below normal are colored brown. Places near average are yellow. The data were collected by the Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov ] on NASA's Terra [ http://terra.nasa.gov ] satellite. Among the most changed areas is Kenya's Eastern province. Both the Marsabit National Reserve, which is next to the Ethiopia border, and the Merti Plateau to its south were dramatically more lush than they were near the end of 2005. [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=13329 ] Evidence of extensive flooding along the Shebele River in southeast Ethiopia (Shabelle in Somalia) is clear: unusually green vegetation traces out the path of the river and several of its tributaries. Although water levels in Lake Victoria have rebounded somewhat from the extremely low levels [ http://earthobservatory.nasa.gov/Study/Victoria/ ] measured in 2005, the vegetation in areas surrounding the lake appears to be slower to respond. NASA image created by Jesse Allen, Earth Observatory, using data provided courtesy of the USDA Foreign Agricultural Service and processed by Jen Small and Assaf Anyamba of the GIMMS Group [ http://ltpwww.gsfc.nasa.gov/gimms/htdocs/ ] at NASA GSFC. |
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Solar Eclipse over Africa
| Title |
Solar Eclipse over Africa |
| Description |
Eastern Africa was cloaked in darkness when the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Aqua [ http://aqua.nasa.gov/ ] satellite caught this image on October 3, 2005. The inky blackness that covers much of Ethiopia, Kenya, Uganda, and parts of Sudan and the Democratic Republic of the Congo in this image was caused when the Moon crossed in front of the Sun in an annular solar eclipse. During such an eclipse, the Sun is visible as a fiery circle around the black disk of the moon. In the dimness beneath the Moon's shadow, very little light remained for MODIS to capture this image. Under normal conditions [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?NAfrica_3_07/2005276 ], the land in the lower half of the image is a lush green, with patches of tan where the land is bare. Here, the tan areas have a red tint in the low light, while the green is completely black. Red dots show where fires were burning in vegetated areas. In the top half of the image, the orange of the Sahara desert is shown in darker tones than normal [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?NAfrica_2_07/2005276 ]. Only in the upper right corner of the image, where full daylight has returned, does the desert look normal. Gradations of darkness within the shadowed area can be seen in the clouds. Bright white clouds reflect light well, so they are easily visible, even in the shadow. Since some light reached the Earth, the clouds remain bright along the outer edges of the shadowed region. As the eclipse progressed, the moon's shadow traveled southeast across the globe. When this image was taken, the deepest shadow lay over Kenya in the lower right corner of the image. Here the clouds are darker, an indication that there was less light to reflect back to the satellite. If this had been a total solar eclipse, the shadow cast by the moon would have been complete. The difference between a total solar eclipse and an annular eclipse is caused by the Moon's orbit around the Earth. The Moon's orbit is not circular, it is elliptical, like a squashed circle with the Earth at its center. This means that the Moon is not always the same distance from the Earth. When it is close to the Earth, the Moon appears larger than when it is far away. During a total solar eclipse, the Moon is closer to the Earth and so is able to block out the Sun entirely. An annular eclipse occurs when the Moon is farther from the Earth, and so the Moon's disk is not large enough to cover the Sun. The large image provided above has a resolution of 500 meters per pixel. It is available in additional resolutions from the MODIS Rapid Response Team. Tiny blue flecks in the large image are defects in the data. NASA image courtesy the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC. |
|
Floods in East Africa
| Title |
Floods in East Africa |
| Description |
As East Africa's short rainy season progressed into November, the downpour continued to stress rivers throughout Somalia, Ethiopia, and Kenya. The widespread flooding began with the rains in mid-October, and continued through the end of November when unusually heavy rain fell on drought-hardened earth, said the Famine Early Warning System Network [ http://www.reliefweb.int/rw/RWB.NSF/db900SID/HMYT-6VXLLM?OpenDocument&rc=1&emid=FL-2006-000169-SOM ] (FEWS NET). Between October 1 and November 10, 2006, most regions in southern Somalia received more than 300 percent of their normal rainfall, FEWS Net added. The rain had a dual effect on the land. In the long term, the rains will help the region recover from drought, but in some river basins, the rains triggered floods that destroyed crops. Among the river basins most severely affected by flooding is the Shabeelle River (Shabele River in Ethiopia). The top image, taken by the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Terra [ http://terra.nasa.gov/ ] satellite on November 17, 2006, shows just how much the Shabeelle River had swollen compared to 2005, when the region was in drought. Flooding along this section of the Shabeelle drove 50,000 from their homes in the town of Beletweyne, which was uninhabitable by November 17, said the United Nations. [ http://www.reliefweb.int/rw/RWB.NSF/db900SID/KKEE-6VLP43?OpenDocument&rc=1&emid=FL-2006-000169-SOM ] The floods are visible through scattered clouds, which are pale blue in this image. Water is black, plant-covered land is bright green, and sparsely vegetated land is tan-pink. NASA image courtesy Jeff Schmaltz, MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC |
|
Floods in East Africa
| Title |
Floods in East Africa |
| Description |
As East Africa's short rainy season progressed into November, the downpour continued to stress rivers throughout Somalia, Ethiopia, and Kenya. The widespread flooding began with the rains in mid-October, and continued through the end of November when unusually heavy rain fell on drought-hardened earth, said the Famine Early Warning System Network [ http://www.reliefweb.int/rw/RWB.NSF/db900SID/HMYT-6VXLLM?OpenDocument&rc=1&emid=FL-2006-000169-SOM ] (FEWS NET). Between October 1 and November 10, 2006, most regions in southern Somalia received more than 300 percent of their normal rainfall, FEWS Net added. The rain had a dual effect on the land. In the long term, the rains will help the region recover from drought, but in some river basins, the rains triggered floods that destroyed crops. Among the river basins most severely affected by flooding is the Shabeelle River (Shabele River in Ethiopia). The top image, taken by the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Terra [ http://terra.nasa.gov/ ] satellite on November 17, 2006, shows just how much the Shabeelle River had swollen compared to 2005, when the region was in drought. Flooding along this section of the Shabeelle drove 50,000 from their homes in the town of Beletweyne, which was uninhabitable by November 17, said the United Nations. [ http://www.reliefweb.int/rw/RWB.NSF/db900SID/KKEE-6VLP43?OpenDocument&rc=1&emid=FL-2006-000169-SOM ] The floods are visible through scattered clouds, which are pale blue in this image. Water is black, plant-covered land is bright green, and sparsely vegetated land is tan-pink. NASA image courtesy Jeff Schmaltz, MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC |
|
Floods in East Africa
| Title |
Floods in East Africa |
| Description |
On December 6, 2006, Kenya got a brief respite from the unusually heavy rains that brought deadly floods to the country during November. The break in the clouds afforded the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Aqua [ http://aqua.nasa.gov/ ] satellite this view of the mouth of the Tana River, one of the most severely flooded regions in Kenya. By this time, floodwater from the upper reaches of the river had drained to the river's mouth, causing the floods seen here. Scattered clouds, pale blue in the combination of infrared and visible light used to make the image, float over the swollen river and bright green, plant-covered landscape. The lower image, taken a little over a week earlier on November 27, shows the river before the floods reached this particular section. At that time, the central portions of the river were severely flooded. The floods seen on the Tana River were caused by a combination of torrential rain and a release of water from Kenya's overwhelmed hydroelectric dams, reported the International Federation of Red Cross and Red Crescent Societies. [ http://www.reliefweb.int/rw/RWB.NSF/db900SID/AMMF-6W9H9K?OpenDocument&rc=1&emid=FL-2006-000169-SOM ] People in hundreds of communities along the Tana River were displaced when the river burst its banks. The Tana River was just one of many rivers to burst their banks in East Africa during the short rainy season of 2006. The short rains, which typically run from late October through early December, fell on drought-hardened ground in Ethiopia, Somalia, and Kenya, and gathered into raging floods. As of December 7, the United Nations Office for the Coordination of Humanitarian Affairs [ http://www.alertnet.org/thenews/newsdesk/IRIN/cf7293789b8a679ee1e8c27b46a2040f.htm ] estimated that 1.8 million people had been affected by the flooding in the three countries. Not only had the floods directly damaged homes, businesses, public buildings, and agricultural fields, but they cut off roads and contaminated drinking water. The lack of clean water and access to health care, food, and other supplies may lead to a health crisis, warns the World Health Organization. [ http://www.reliefweb.int/rw/RWB.NSF/db900SID/HMYT-6WAMS2?OpenDocument&rc=1&emid=FL-2006-000169-SOM ] Diseases such as cholera, malaria, diarrhea, and measles have already started to spread among displaced people living in unsanitary conditions with limited access to clean water. Though early December gave the region a break from the rains, more rain and additional flooding were predicted through December. NASA image created by Jesse Allen, using data provided courtesy of the MODIS Rapid Response [ http://rapidfire.sci.gsfc.nasa.gov/ ] team and the Level 1 and Atmospheric Archive Distribution System. [ http://ladsweb.nascom.nasa.gov/ ] |
|
Floods in East Africa
| Title |
Floods in East Africa |
| Description |
On December 6, 2006, Kenya got a brief respite from the unusually heavy rains that brought deadly floods to the country during November. The break in the clouds afforded the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Aqua [ http://aqua.nasa.gov/ ] satellite this view of the mouth of the Tana River, one of the most severely flooded regions in Kenya. By this time, floodwater from the upper reaches of the river had drained to the river's mouth, causing the floods seen here. Scattered clouds, pale blue in the combination of infrared and visible light used to make the image, float over the swollen river and bright green, plant-covered landscape. The lower image, taken a little over a week earlier on November 27, shows the river before the floods reached this particular section. At that time, the central portions of the river were severely flooded. The floods seen on the Tana River were caused by a combination of torrential rain and a release of water from Kenya's overwhelmed hydroelectric dams, reported the International Federation of Red Cross and Red Crescent Societies. [ http://www.reliefweb.int/rw/RWB.NSF/db900SID/AMMF-6W9H9K?OpenDocument&rc=1&emid=FL-2006-000169-SOM ] People in hundreds of communities along the Tana River were displaced when the river burst its banks. The Tana River was just one of many rivers to burst their banks in East Africa during the short rainy season of 2006. The short rains, which typically run from late October through early December, fell on drought-hardened ground in Ethiopia, Somalia, and Kenya, and gathered into raging floods. As of December 7, the United Nations Office for the Coordination of Humanitarian Affairs [ http://www.alertnet.org/thenews/newsdesk/IRIN/cf7293789b8a679ee1e8c27b46a2040f.htm ] estimated that 1.8 million people had been affected by the flooding in the three countries. Not only had the floods directly damaged homes, businesses, public buildings, and agricultural fields, but they cut off roads and contaminated drinking water. The lack of clean water and access to health care, food, and other supplies may lead to a health crisis, warns the World Health Organization. [ http://www.reliefweb.int/rw/RWB.NSF/db900SID/HMYT-6WAMS2?OpenDocument&rc=1&emid=FL-2006-000169-SOM ] Diseases such as cholera, malaria, diarrhea, and measles have already started to spread among displaced people living in unsanitary conditions with limited access to clean water. Though early December gave the region a break from the rains, more rain and additional flooding were predicted through December. NASA image created by Jesse Allen, using data provided courtesy of the MODIS Rapid Response [ http://rapidfire.sci.gsfc.nasa.gov/ ] team and the Level 1 and Atmospheric Archive Distribution System. [ http://ladsweb.nascom.nasa.gov/ ] |
|
Floods in East Africa
| Title |
Floods in East Africa |
| Description |
As the short rainy season in East Africa drew closer to its seasonal end, waters continued to rise on rivers and in wetlands throughout the region. Devastating floods swept through Somalia, Ethiopia, Kenya, and parts of surrounding countries starting at the end of October 2006 and continuing through December, as the short rainy season unleashed unusually heavy rains. According to the United States Agency for International Development, [ http://www.reliefweb.int/rw/RWB.NSF/db900SID/KHII-6WD3QS?OpenDocument&rc=1&emid=FL-2006-000169-SOM ] as many as 1.5 million people have been affected by floods in Kenya, Ethiopia, and Somalia. Though the rainy season typically ends in December, the rains were predicted to continue into January and possibly longer in some regions. The Lotagipi Swamp, in northwestern Kenya and southern Sudan, brimmed with water when the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on 's Terra [ http://terra.nasa.gov/ ] satellite captured the top image on December 11, 2006. The lower image was acquired a month earlier, when the swamp was relatively dry. Silty water, pale blue, streams through the swamp, with sections of deeper, clear water forming a dark blue boundary on the northern and eastern edges. The Lotagipi Swamp lies in the Ilemi Triangle, [ https://www.cia.gov/cia/publications/factbook/geos/ke.html ] a segment of land that by treaty is in Sudan, but is administered by Kenya. The rain has turned the landscape a vibrant green with the growth of fresh vegetation. Patches of tan indicate areas where few or no plants are growing. Scattered clouds are pale blue and white in this image made from a combination of visible and infrared light. Photo-like, true-color images [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?NAfrica_3_07/2006345 ] of the region are available from the MODIS Rapid Response Team twice daily. NASA images courtesy the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC. |
|
Floods in East Africa
| Title |
Floods in East Africa |
| Description |
As the short rainy season in East Africa drew closer to its seasonal end, waters continued to rise on rivers and in wetlands throughout the region. Devastating floods swept through Somalia, Ethiopia, Kenya, and parts of surrounding countries starting at the end of October 2006 and continuing through December, as the short rainy season unleashed unusually heavy rains. According to the United States Agency for International Development, [ http://www.reliefweb.int/rw/RWB.NSF/db900SID/KHII-6WD3QS?OpenDocument&rc=1&emid=FL-2006-000169-SOM ] as many as 1.5 million people have been affected by floods in Kenya, Ethiopia, and Somalia. Though the rainy season typically ends in December, the rains were predicted to continue into January and possibly longer in some regions. The Lotagipi Swamp, in northwestern Kenya and southern Sudan, brimmed with water when the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on 's Terra [ http://terra.nasa.gov/ ] satellite captured the top image on December 11, 2006. The lower image was acquired a month earlier, when the swamp was relatively dry. Silty water, pale blue, streams through the swamp, with sections of deeper, clear water forming a dark blue boundary on the northern and eastern edges. The Lotagipi Swamp lies in the Ilemi Triangle, [ https://www.cia.gov/cia/publications/factbook/geos/ke.html ] a segment of land that by treaty is in Sudan, but is administered by Kenya. The rain has turned the landscape a vibrant green with the growth of fresh vegetation. Patches of tan indicate areas where few or no plants are growing. Scattered clouds are pale blue and white in this image made from a combination of visible and infrared light. Photo-like, true-color images [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?NAfrica_3_07/2006345 ] of the region are available from the MODIS Rapid Response Team twice daily. NASA images courtesy the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC. |
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Floods in East Africa: Natur
…
nasa, nasanaturalhazards
* eoimages.gsfc.nasa.gov/ima
…
Somalia_TMO_2006321
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2006-11-17 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
Somalia_TMO_2006321 |
|
El Nino and Rainfall: Image
…
nasa, nasaimageofthedaygalle
…
At the end of 2006, East Afr
…
precipanom_trmm_200611
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2006 |
| creator |
NASA -- NASA image created by Jesse Allen, Earth Observatory, using rainfall data provided courtesy of the precip.gsfc.nasa.gov/ Global Precipitation Climatology Product team at NASA Goddard Space Flight Center. |
| identifier |
precipanom_trmm_200611 |
|
Drought in East Africa: Natu
…
nasa, nasanaturalhazards
Six successive years of poor
…
eafrica_avhrr_11-20apr05
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2004-04-21 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
eafrica_avhrr_11-20apr05 |
|
Drought in East Africa: Natu
…
nasa, nasanaturalhazards
Six successive years of poor
…
eafrica_avhrr_11-20apr05
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2004-04-21 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
eafrica_avhrr_11-20apr05 |
|
Locusts in Kenya: Image of t
…
nasa, nasaimageofthedaygalle
…
'For the first time since 19
…
kenyandvia_spt_2007324
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007-12-03 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
kenyandvia_spt_2007324 |
|
Solar Eclipse over Africa: I
…
nasa, nasaimageofthedaygalle
…
Eastern Africa was cloaked i
…
EastAfrica_AMO_2005276
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2005-10-03 |
| creator |
NASA -- NASA images courtesy the rapidfire.sci.gsfc.nasa.gov MODIS Rapid Response Team at NASA GSFC. |
| identifier |
EastAfrica_AMO_2005276 |
|
East Africa : Image of the D
…
nasa, nasaimageofthedaygalle
…
This image shows the East Af
…
seawifs_ethiopia
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2000-11-29 |
| creator |
NASA -- Provided by the seawifs.gsfc.nasa.gov/SEAWIFS.html SeaWiFS Project, NASA/Goddard Space Flight Center, and ORBIMAGE |
| identifier |
seawifs_ethiopia |
|
East Africa Greens Up from H
…
nasa, nasaimageofthedaygalle
…
After devastating drought in
…
eafricandvia_spt_200611
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2006 |
| creator |
NASA -- NASA image created by Jesse Allen, Earth Observatory, using data provided courtesy of the USDA Foreign Agricultural Service and processed by Jenn Small and Assaf Anyamba of the ltpwww.gsfc.nasa.gov/gimms/htdocs/ GIMMS Group at NASA GSFC. |
| identifier |
eafricandvia_spt_200611 |
|
East Africa Greens Up from H
…
nasa, nasanaturalhazards
After devastating drought in
…
ge_17782
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2006-11-30 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
ge_17782 |
|
East Africa Greens Up from H
…
nasa, nasanaturalhazards
After devastating drought in
…
ge_17782
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2006-11-30 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
ge_17782 |
|
East Africa Greens Up from H
…
nasa, nasanaturalhazards
After devastating drought in
…
ge_17782
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2006-11-30 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
ge_17782 |
|
Drought in Eastern Africa: I
…
nasa, nasaimageofthedaygalle
…
In eastern Africa, most area
…
africandvia_spt_200602_palet
…
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2006 |
| creator |
NASA -- NASA image created by Jesse Allen, using data provided courtesy of Jennifer Small, NASA ltpwww.gsfc.nasa.gov/gimms/htdocs/ GIMMS Group at Goddard Space Flight Center. |
| identifier |
africandvia_spt_200602_palette |
|
Drought in Eastern Africa: I
…
nasa, nasaimageofthedaygalle
…
In eastern Africa, most area
…
africandvia_spt_200602_palet
…
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2006 |
| creator |
NASA -- NASA image created by Jesse Allen, using data provided courtesy of Jennifer Small, NASA ltpwww.gsfc.nasa.gov/gimms/htdocs/ GIMMS Group at Goddard Space Flight Center. |
| identifier |
africandvia_spt_200602_palette |
|
Drought in Eastern Africa: I
…
nasa, nasaimageofthedaygalle
…
In eastern Africa, most area
…
africandvia_spt_200602_palet
…
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2006 |
| creator |
NASA -- NASA image created by Jesse Allen, using data provided courtesy of Jennifer Small, NASA ltpwww.gsfc.nasa.gov/gimms/htdocs/ GIMMS Group at Goddard Space Flight Center. |
| identifier |
africandvia_spt_200602_palette |
|
Drought in Eastern Africa: I
…
nasa, nasaimageofthedaygalle
…
In eastern Africa, most area
…
africandvia_spt_200602_palet
…
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2006 |
| creator |
NASA -- NASA image created by Jesse Allen, using data provided courtesy of Jennifer Small, NASA ltpwww.gsfc.nasa.gov/gimms/htdocs/ GIMMS Group at Goddard Space Flight Center. |
| identifier |
africandvia_spt_200602_palette |
|
Floods in East Africa: Natur
…
nasa, nasanaturalhazards
* eoimages.gsfc.nasa.gov/ima
…
tana_amo_2006340
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2006-12-06 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
tana_amo_2006340 |
|
Floods Raise Water Levels on
…
nasa, nasaimageofthedaygalle
…
The 2006-2007 rainy season i
…
lakevic_ast_2006345
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2006-12-11 |
| creator |
NASA -- ASTER image by Jesse Allen using data provided by NASA, GSFC, METI, ERSDAC, JAROS, and U.S./Japan ASTER Science Team. Image and caption information from Jodie Smith, GIS Scientist, Early Warning and Environmental Monitoring, SAIC contractor to US Geological Survey Earth Resources Observation and Science, Sioux Falls, SD. JJason-1 data interpretation by Charon Birkett, University of Maryland, and Brian Beckley, SGT at NASA/GSFC. Lake level products courtesy of the USDA/FAS www.pecad.fas.usda.gov/cropexplorer/ CropExplorer Program. The USDA/NASA/SGT/UMD team acknowledges the AVISO data center at CNES and the NASA Physical Oceanography DAAC for the provision of the TOPEX/POSEIDON and Jason altimetric datasets. |
| identifier |
lakevic_ast_2006345 |
|
Floods in East Africa: Natur
…
nasa, nasanaturalhazards
* eoimages.gsfc.nasa.gov/ima
…
Kenya_TMO_2006345
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2006-12-11 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
Kenya_TMO_2006345 |
|
Drought in East Africa: Natu
…
nasa, nasanaturalhazards
The failure of the short-sea
…
eafrica_tmo_2005353_palette
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2005-12-19 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
eafrica_tmo_2005353_palette |
|
Drought in East Africa: Natu
…
nasa, nasanaturalhazards
The failure of the short-sea
…
eafrica_tmo_2005353_palette
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2005-12-19 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
eafrica_tmo_2005353_palette |
|
Flooding in Eastern Africa:
…
nasa, nasanaturalhazards
* eoimages.gsfc.nasa.gov/ima
…
ethopia_tmo_2006120
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2006-04-30 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
ethopia_tmo_2006120 |
|
Flooding in Eastern Africa:
…
nasa, nasanaturalhazards
* eoimages.gsfc.nasa.gov/ima
…
ethopia_tmo_2006120
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2006-04-30 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
ethopia_tmo_2006120 |
|
Africa in SRTM 3-D, Anaglyph
…
PIA04964
Sol (our sun)
C-Band Interferometric Radar
…
| Title |
Africa in SRTM 3-D, Anaglyph of Shaded Relief |
| Original Caption Released with Image |
This stereoscopic shaded relief image shows Africa's topography as measured by the Shuttle Radar Topography Mission (SRTM) in February 2000. Also shown are Madagascar, the Arabian Peninsula, and other adjacent regions. Previously, much of the topography here was not mapped in detail. Digital elevation data, such as provided by SRTM, are in high demand by scientists studying earthquakes, volcanism, and erosion patterns and for use in mapping and modeling hazards to human habitation. But the shape of Earth's surface affects nearly every natural process and human endeavor that occurs there, so elevation data are used in a wide range of applications. The image shown here is greatly reduced from the original data resolution, but still provides a good overview of the continent's landforms. It is best viewed while panning at full resolution while using image display software. The northern part of the continent consists of a system of basins and plateaus, with several volcanic uplands whose uplift has been matched by subsidence in the large surrounding basins. Many of these basins have been infilled with sand and gravel, creating the vast Saharan lands. The Atlas Mountains in the northwest were created by convergence of the African and Eurasian tectonic plates. The geography of the central latitudes of Africa is dominated by the Great Rift Valley, extending from Lake Nyasa to the Red Sea, and splitting into two arms to enclose an interior plateau and the nearly circular Lake Victoria, visible in the right center of the image. To the west lies the Congo Basin, a vast, shallow depression that rises to form an almost circular rim of highlands. Most of the southern part of the continent rests on a concave plateau comprising the Kalahari Basin and a mountainous fringe, skirted by a coastal plain that widens out in Mozambique in the southeast. Specific noteworthy features one may wish to explore in this scene include (1) the Richat Structure in Mauritania, a "bull's eye" geologic structure, (2) the Velingara Ring in Senegal, a possible meteorite impact crater, (3) the delta of the Niger River in Nigeria, (4) the Cameroon Line of volcanoes, crossing Cameroon and extending offshore, (5) long linear mountain ridges crossing the southern end of Africa, (6) Mount Kilimanjaro and neighboring volcanoes in Kenya and Tanzania, (7) the Afar Triangle in Ethiopia, Djibouti, and vicinity, where Earth's crust is being pulled in three directions by tectonic forces, (8) the Dead Sea fault line, between Israel and Jordan, (9) ancient shorelines, inland from the coast of Libya, and (10) vast seas of sand dunes, particularly across the Sahara Desert and much of the Arabian Peninsula. This anaglyph was created by deriving a shaded relief image from the SRTM data, draping it back over the SRTM elevation model, and then generating two differing perspectives, one for each eye. Illumination is from the north (top). When viewed through special glasses, the anaglyph is a, vertically exaggerated view of the Earth's surface in its full three dimensions. Anaglyph glasses cover the left eye with a red filter and cover the right eye with a blue filter. Elevation data used in this image were acquired by the Shuttle Radar Topography Mission (SRTM) aboard the Space Shuttle Endeavour, launched on February 11, 2000. SRTM used the same radar instrument that comprised the Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) that flew twice on the Space Shuttle Endeavour in 1994. SRTM was designed to collect three-dimensional measurements of the Earth's surface. To collect the 3-D data, engineers added a 60-meter-long (200-foot) mast, installed additional C-band and X-band antennas, and improved tracking and navigation devices. The mission is a cooperative project between the National Aeronautics and Space Administration (NASA), the National Geospatial-Intelligence Agency (NGA) of the U.S. Department of Defense (DoD), and the German and Italian space agencies. It is managed by NASA's Jet Propulsion Laboratory, Pasadena, Calif., for NASA's Earth Science Enterprise, Washington, D.C. Orientation: North toward the top, Mercator projection Image Data: Shaded SRTM elevation model Date Acquired: February 2000 |
|
Omo River Delta, Lake Turkan
…
| Title |
Omo River Delta, Lake Turkana, Ethiopia/Kenya border, Africa |
| Description |
As a result of land clearing operations in the local area, the Omo River Delta (4.5N, 36.0E) at the north end of Lake Turkana, on the Ethiopia/Kenya border has become enlarged through topsoil erosion. The delta measured 800 sq. km. in 1981 doubled to 1,600 sq. km. by 1988 and was up to 1,800 sq. km. in 1991. This is the same area where the Leaky Anthropological Team discovered the earliest remains of human ancestors. |
| Date Taken |
1991-09-18 |
|
STS-65 Earth observation of
…
| Title |
STS-65 Earth observation of Omo River Delta, Lake Turkana in Ethiopia / Kenya |
| Description |
STS-65 Earth observation taken aboard Columbia, Orbiter Vehicle (OV) 102, is of Omo River Delta and Lake Turkana in Ethiopia / Kenya. The Omo Delta at the north end of Lake Turkana (Rudolph) is one of the long-term environmental study sites of the Space Shuttle program. The environmental interest in this instance is the documentation of the delta's extension into the lake. This delta extension, or aggradation, is felt to be the result of large-scale soil erosion in the recently deforested areas of Ethiopia in the watershed of the Omo River. Using digitized, rectified, machine-classified, and mensurated NASA photography, it has been determined that the Omo Delta has increased in area by approximately 400% to about 1,800 square kilometers since it was first photographed during the Gemini program in 1965. This photograph documents the long-term and increasing turbidity of Lake Turkana and the continuing delta extension southward by both the northwest and northeast distributaries of the Om |
| Date Taken |
1994-07-23 |
|
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