|
|
Zoom into Olympic National F
…
| Title |
Zoom into Olympic National Forest Time Lapse: 1984 to 1995 (With Dates) |
| Abstract |
Zoom into a 1 mile square area in the Olympic National Forest showing appearance on dates: 26 July 1984, 13 July 1985, 29 May 1986, 29 March 1987, 21 September 1987, 21 July 1988, 13 September 1990, 16 September 1991, 2 March 1992, 11 September 1995 |
| Completed |
1999-04-09 |
|
Zoom into Olympic National F
…
| Title |
Zoom into Olympic National Forest Time Lapse: 1984 to 1995 (Without Dates) |
| Abstract |
Zoom into a 1 mile square area in the Olympic National Forest showing appearance on dates: 26 July 1984, 13 July 1985, 29 May 1986, 29 March 1987, 21 September 1987, 21 July 1988, 13 September 1990, 16 September 1991, 2 March 1992, 11 September 1995 |
| Completed |
1999-04-09 |
|
Kuwait Fires
| Title |
Kuwait Fires |
| Abstract |
Viewing the oil fires during the Gulf War in 1991. |
| Completed |
2003-03-21 |
|
Kuwait Fires
| Title |
Kuwait Fires |
| Abstract |
Viewing the oil fires during the Gulf War in 1991. |
| Completed |
2003-03-21 |
|
Kuwait Fires
| Title |
Kuwait Fires |
| Abstract |
Viewing the oil fires during the Gulf War in 1991. |
| Completed |
2003-03-21 |
|
Kuwait Fires
| Title |
Kuwait Fires |
| Abstract |
Viewing the oil fires during the Gulf War in 1991. |
| Completed |
2003-03-21 |
|
Kuwait Fires
| Title |
Kuwait Fires |
| Abstract |
Viewing the oil fires during the Gulf War in 1991. |
| Completed |
2003-03-21 |
|
Before and During the Great
…
| Title |
Before and During the Great Mississippi Flood of 1993 |
| Abstract |
During the first half of 1993, heavy rains in the midwest United States caused the greatest flood ever recorded on the Upper Mississippi. The Mississippi River remained above flood stage from April through September of that year, and many of the dykes and water control systems along the rivers in this region were overwhelmed. These images from the Landsat-5 Thematic Mapper clearly show the flooded regions near St. Louis. The pink areas near the flooded regions show the scoured land from which the flood waters have receded. A comparison of the image during the flood with an image from a year before clearly shows the preponderance of cultivated fields in the lowland flooded region, evidence that floods and river meanderings have deposited rich soil in these regions in the past. |
| Completed |
2006-04-04 |
|
Full Screen Version of Misso
…
| Title |
Full Screen Version of Missouri River before Flood |
| Completed |
1999-04-09 |
|
Full Screen Version of Misso
…
| Title |
Full Screen Version of Missouri River before Flood |
| Completed |
1999-04-09 |
|
Full Screen Version of Misso
…
| Title |
Full Screen Version of Missouri River before Flood |
| Completed |
1999-04-09 |
|
Full Screen Version of Misso
…
| Title |
Full Screen Version of Missouri River before Flood |
| Completed |
1999-04-09 |
|
Full Screen Version of Misso
…
| Title |
Full Screen Version of Missouri River before Flood |
| Completed |
1999-04-09 |
|
Mississippi River before the
…
| Title |
Mississippi River before the flood, in August, 1991 |
| Abstract |
To create this visualization Thematic Mapper bands 5, 4, and 2 were used. |
| Completed |
1999-04-09 |
|
Kuwait Fires with Dates
| Title |
Kuwait Fires with Dates |
| Abstract |
Viewing the oil fires during the Gulf War in 1991. |
| Completed |
2003-03-21 |
|
Zoom into Olympic National F
…
| Title |
Zoom into Olympic National Forest Time Lapse: 1984 to 1995 |
| Abstract |
The ten small scenes show a one mile square area in the Olympic National Forest to the northwest of the Olympic National Park on the Olympic Pennisula in northwestern Washington State. Clear cutting in the area was already well underway at the time for the first Landsat scene in 1984. Public land use policy changes in the late 1980s resulted in timber cutting relocating from public lands to private holdings. Some revegetation of the clear cut areas can be seen in the later data. A set of four full Landsat scenes showing the entire Olympic Pennisula, including this area of the Olympic National Forest, is also available (see animation 899). North is up in all these images. The Landsat scenes use Thematic Mapper data from bands 5, 4, and 2 displayed as red, green, and blue respectively. In this color scheme, dense conifer coverage appears dark green, bare soil or cultivated land appears reddish, while the light blue on the peaks of mountains and ridges is snow. Zoom into a 1 mile square area in the Olympic National Forest showing appearance on dates: 26 July 1984, 13 July 1985, 29 May 1986, 29 March 1987, 21 September 1987, 21 July 1988, 13 September 1990, 16 September 1991, 2 March 1992, and 11 September 1995 |
| Completed |
1999-04-09 |
|
Zoom into Olympic National F
…
| Title |
Zoom into Olympic National Forest Time Lapse: 1984 to 1995 |
| Abstract |
The ten small scenes show a one mile square area in the Olympic National Forest to the northwest of the Olympic National Park on the Olympic Pennisula in northwestern Washington State. Clear cutting in the area was already well underway at the time for the first Landsat scene in 1984. Public land use policy changes in the late 1980s resulted in timber cutting relocating from public lands to private holdings. Some revegetation of the clear cut areas can be seen in the later data. A set of four full Landsat scenes showing the entire Olympic Pennisula, including this area of the Olympic National Forest, is also available (see animation 899). North is up in all these images. The Landsat scenes use Thematic Mapper data from bands 5, 4, and 2 displayed as red, green, and blue respectively. In this color scheme, dense conifer coverage appears dark green, bare soil or cultivated land appears reddish, while the light blue on the peaks of mountains and ridges is snow. Zoom into a 1 mile square area in the Olympic National Forest showing appearance on dates: 26 July 1984, 13 July 1985, 29 May 1986, 29 March 1987, 21 September 1987, 21 July 1988, 13 September 1990, 16 September 1991, 2 March 1992, and 11 September 1995 |
| Completed |
1999-04-09 |
|
Zoom into Olympic National F
…
| Title |
Zoom into Olympic National Forest Time Lapse: 1984 to 1995 |
| Abstract |
The ten small scenes show a one mile square area in the Olympic National Forest to the northwest of the Olympic National Park on the Olympic Pennisula in northwestern Washington State. Clear cutting in the area was already well underway at the time for the first Landsat scene in 1984. Public land use policy changes in the late 1980s resulted in timber cutting relocating from public lands to private holdings. Some revegetation of the clear cut areas can be seen in the later data. A set of four full Landsat scenes showing the entire Olympic Pennisula, including this area of the Olympic National Forest, is also available (see animation 899). North is up in all these images. The Landsat scenes use Thematic Mapper data from bands 5, 4, and 2 displayed as red, green, and blue respectively. In this color scheme, dense conifer coverage appears dark green, bare soil or cultivated land appears reddish, while the light blue on the peaks of mountains and ridges is snow. Zoom into a 1 mile square area in the Olympic National Forest showing appearance on dates: 26 July 1984, 13 July 1985, 29 May 1986, 29 March 1987, 21 September 1987, 21 July 1988, 13 September 1990, 16 September 1991, 2 March 1992, and 11 September 1995 |
| Completed |
1999-04-09 |
|
Zoom into Olympic National F
…
| Title |
Zoom into Olympic National Forest Time Lapse: 1984 to 1995 |
| Abstract |
The ten small scenes show a one mile square area in the Olympic National Forest to the northwest of the Olympic National Park on the Olympic Pennisula in northwestern Washington State. Clear cutting in the area was already well underway at the time for the first Landsat scene in 1984. Public land use policy changes in the late 1980s resulted in timber cutting relocating from public lands to private holdings. Some revegetation of the clear cut areas can be seen in the later data. A set of four full Landsat scenes showing the entire Olympic Pennisula, including this area of the Olympic National Forest, is also available (see animation 899). North is up in all these images. The Landsat scenes use Thematic Mapper data from bands 5, 4, and 2 displayed as red, green, and blue respectively. In this color scheme, dense conifer coverage appears dark green, bare soil or cultivated land appears reddish, while the light blue on the peaks of mountains and ridges is snow. Zoom into a 1 mile square area in the Olympic National Forest showing appearance on dates: 26 July 1984, 13 July 1985, 29 May 1986, 29 March 1987, 21 September 1987, 21 July 1988, 13 September 1990, 16 September 1991, 2 March 1992, and 11 September 1995 |
| Completed |
1999-04-09 |
|
Zoom into Olympic National F
…
| Title |
Zoom into Olympic National Forest Time Lapse: 1984 to 1995 |
| Abstract |
The ten small scenes show a one mile square area in the Olympic National Forest to the northwest of the Olympic National Park on the Olympic Pennisula in northwestern Washington State. Clear cutting in the area was already well underway at the time for the first Landsat scene in 1984. Public land use policy changes in the late 1980s resulted in timber cutting relocating from public lands to private holdings. Some revegetation of the clear cut areas can be seen in the later data. A set of four full Landsat scenes showing the entire Olympic Pennisula, including this area of the Olympic National Forest, is also available (see animation 899). North is up in all these images. The Landsat scenes use Thematic Mapper data from bands 5, 4, and 2 displayed as red, green, and blue respectively. In this color scheme, dense conifer coverage appears dark green, bare soil or cultivated land appears reddish, while the light blue on the peaks of mountains and ridges is snow. Zoom into a 1 mile square area in the Olympic National Forest showing appearance on dates: 26 July 1984, 13 July 1985, 29 May 1986, 29 March 1987, 21 September 1987, 21 July 1988, 13 September 1990, 16 September 1991, 2 March 1992, and 11 September 1995 |
| Completed |
1999-04-09 |
|
Zoom into Olympic National F
…
| Title |
Zoom into Olympic National Forest Time Lapse: 1984 to 1995 |
| Abstract |
The ten small scenes show a one mile square area in the Olympic National Forest to the northwest of the Olympic National Park on the Olympic Pennisula in northwestern Washington State. Clear cutting in the area was already well underway at the time for the first Landsat scene in 1984. Public land use policy changes in the late 1980s resulted in timber cutting relocating from public lands to private holdings. Some revegetation of the clear cut areas can be seen in the later data. A set of four full Landsat scenes showing the entire Olympic Pennisula, including this area of the Olympic National Forest, is also available (see animation 899). North is up in all these images. The Landsat scenes use Thematic Mapper data from bands 5, 4, and 2 displayed as red, green, and blue respectively. In this color scheme, dense conifer coverage appears dark green, bare soil or cultivated land appears reddish, while the light blue on the peaks of mountains and ridges is snow. Zoom into a 1 mile square area in the Olympic National Forest showing appearance on dates: 26 July 1984, 13 July 1985, 29 May 1986, 29 March 1987, 21 September 1987, 21 July 1988, 13 September 1990, 16 September 1991, 2 March 1992, and 11 September 1995 |
| Completed |
1999-04-09 |
|
Zoom into Olympic National F
…
| Title |
Zoom into Olympic National Forest Time Lapse: 1984 to 1995 |
| Abstract |
The ten small scenes show a one mile square area in the Olympic National Forest to the northwest of the Olympic National Park on the Olympic Pennisula in northwestern Washington State. Clear cutting in the area was already well underway at the time for the first Landsat scene in 1984. Public land use policy changes in the late 1980s resulted in timber cutting relocating from public lands to private holdings. Some revegetation of the clear cut areas can be seen in the later data. A set of four full Landsat scenes showing the entire Olympic Pennisula, including this area of the Olympic National Forest, is also available (see animation 899). North is up in all these images. The Landsat scenes use Thematic Mapper data from bands 5, 4, and 2 displayed as red, green, and blue respectively. In this color scheme, dense conifer coverage appears dark green, bare soil or cultivated land appears reddish, while the light blue on the peaks of mountains and ridges is snow. Zoom into a 1 mile square area in the Olympic National Forest showing appearance on dates: 26 July 1984, 13 July 1985, 29 May 1986, 29 March 1987, 21 September 1987, 21 July 1988, 13 September 1990, 16 September 1991, 2 March 1992, and 11 September 1995 |
| Completed |
1999-04-09 |
|
Zoom into Olympic National F
…
| Title |
Zoom into Olympic National Forest Time Lapse: 1984 to 1995 |
| Abstract |
The ten small scenes show a one mile square area in the Olympic National Forest to the northwest of the Olympic National Park on the Olympic Pennisula in northwestern Washington State. Clear cutting in the area was already well underway at the time for the first Landsat scene in 1984. Public land use policy changes in the late 1980s resulted in timber cutting relocating from public lands to private holdings. Some revegetation of the clear cut areas can be seen in the later data. A set of four full Landsat scenes showing the entire Olympic Pennisula, including this area of the Olympic National Forest, is also available (see animation 899). North is up in all these images. The Landsat scenes use Thematic Mapper data from bands 5, 4, and 2 displayed as red, green, and blue respectively. In this color scheme, dense conifer coverage appears dark green, bare soil or cultivated land appears reddish, while the light blue on the peaks of mountains and ridges is snow. Zoom into a 1 mile square area in the Olympic National Forest showing appearance on dates: 26 July 1984, 13 July 1985, 29 May 1986, 29 March 1987, 21 September 1987, 21 July 1988, 13 September 1990, 16 September 1991, 2 March 1992, and 11 September 1995 |
| Completed |
1999-04-09 |
|
Zoom into Olympic National F
…
| Title |
Zoom into Olympic National Forest Time Lapse: 1984 to 1995 |
| Abstract |
The ten small scenes show a one mile square area in the Olympic National Forest to the northwest of the Olympic National Park on the Olympic Pennisula in northwestern Washington State. Clear cutting in the area was already well underway at the time for the first Landsat scene in 1984. Public land use policy changes in the late 1980s resulted in timber cutting relocating from public lands to private holdings. Some revegetation of the clear cut areas can be seen in the later data. A set of four full Landsat scenes showing the entire Olympic Pennisula, including this area of the Olympic National Forest, is also available (see animation 899). North is up in all these images. The Landsat scenes use Thematic Mapper data from bands 5, 4, and 2 displayed as red, green, and blue respectively. In this color scheme, dense conifer coverage appears dark green, bare soil or cultivated land appears reddish, while the light blue on the peaks of mountains and ridges is snow. Zoom into a 1 mile square area in the Olympic National Forest showing appearance on dates: 26 July 1984, 13 July 1985, 29 May 1986, 29 March 1987, 21 September 1987, 21 July 1988, 13 September 1990, 16 September 1991, 2 March 1992, and 11 September 1995 |
| Completed |
1999-04-09 |
|
Zoom into Olympic National F
…
| Title |
Zoom into Olympic National Forest Time Lapse: 1984 to 1995 |
| Abstract |
The ten small scenes show a one mile square area in the Olympic National Forest to the northwest of the Olympic National Park on the Olympic Pennisula in northwestern Washington State. Clear cutting in the area was already well underway at the time for the first Landsat scene in 1984. Public land use policy changes in the late 1980s resulted in timber cutting relocating from public lands to private holdings. Some revegetation of the clear cut areas can be seen in the later data. A set of four full Landsat scenes showing the entire Olympic Pennisula, including this area of the Olympic National Forest, is also available (see animation 899). North is up in all these images. The Landsat scenes use Thematic Mapper data from bands 5, 4, and 2 displayed as red, green, and blue respectively. In this color scheme, dense conifer coverage appears dark green, bare soil or cultivated land appears reddish, while the light blue on the peaks of mountains and ridges is snow. Zoom into a 1 mile square area in the Olympic National Forest showing appearance on dates: 26 July 1984, 13 July 1985, 29 May 1986, 29 March 1987, 21 September 1987, 21 July 1988, 13 September 1990, 16 September 1991, 2 March 1992, and 11 September 1995 |
| Completed |
1999-04-09 |
|
Zoom into Olympic National F
…
| Title |
Zoom into Olympic National Forest Time Lapse: 1984 to 1995 |
| Abstract |
The ten small scenes show a one mile square area in the Olympic National Forest to the northwest of the Olympic National Park on the Olympic Pennisula in northwestern Washington State. Clear cutting in the area was already well underway at the time for the first Landsat scene in 1984. Public land use policy changes in the late 1980s resulted in timber cutting relocating from public lands to private holdings. Some revegetation of the clear cut areas can be seen in the later data. A set of four full Landsat scenes showing the entire Olympic Pennisula, including this area of the Olympic National Forest, is also available (see animation 899). North is up in all these images. The Landsat scenes use Thematic Mapper data from bands 5, 4, and 2 displayed as red, green, and blue respectively. In this color scheme, dense conifer coverage appears dark green, bare soil or cultivated land appears reddish, while the light blue on the peaks of mountains and ridges is snow. Zoom into a 1 mile square area in the Olympic National Forest showing appearance on dates: 26 July 1984, 13 July 1985, 29 May 1986, 29 March 1987, 21 September 1987, 21 July 1988, 13 September 1990, 16 September 1991, 2 March 1992, and 11 September 1995 |
| Completed |
1999-04-09 |
|
Mt. Kosciuszko
| Title |
Mt. Kosciuszko |
| Description |
The 2,228-meter-tall (7,310-foot) Mt. Kosciuszko lies at the southern end of Australia's Snowy Mountains, which define the Kosciuszko National Park. Though it is the tallest mountain on the continent, Kosciuszko is very easy to climb. In summer, it is a scramble up the slope from the Thredbo Village (or you can take the chairlift!) to the plateau, and a gentle 6-km (4-mile) walk to the mountain. The sensitive alpine grasses are protected from the foot traffic by a steel grate, making the walk all the less challenging (though highly discouraged by the Park Service when thunderstorms are threatening!). The gratework ends at a car passable road (though no traffic is permitted past Charlotte's Pass) on which it is another 10-minute stroll to the peak. In summer, it is a pleasant and cool hike of an hour or two, while in winter the elevated plains are covered in deep snow, but still quite passable on skis or snowshoes. Hardly Everest! In fact, "peak baggers" have suggested that the Seven Summits should instead include New Zealand's Mt. Cook or Indonesia's Puncak Jaya (also known as Carstenz Pyramid). However, Oceania is not a continent, so Kosciuszko is the true highest peak on the Australian continent. The mountain's name (known as "Kozzy" to Australians) comes from the fertile imagination of the first European explorer to reach the Snowy Mountains, Paul Strzlecki. On arriving in the Snowy Mountains in 1840, he thought the mountain's gentle slopes were suggestive of the tomb of the Polish general, Thaddeus Kosciuszko, who assisted the Americans in the 1770s in their war against the British, and in the 1790s with the Polish again Russia. However, for many decades the mountain's name was mispelled "Kosciusko" by Australians and was only corrected in the 1990s during trade negotiations with Poland. Aboriginal Australians had been visiting the Snowy Mountains and neighboring Bogong High Plains during the summer months for thousands of years prior to Strzlecki's visit in hunt of the nutritious Bogong moths. Mt. Kosciuszko is part of the Great Dividing Range, a long chain of mountains running along the Australian east coast which seperate the arid inland from the more fertile and densely-populated coastal regions. The Snowy Mountains are the centerpiece of a huge engineering program, in which a series of dams and tunnels were constructed during the 1950s to draw on the reliable water supply from snowmelt into the inland regions for irrigation. By bringing water falling on the eastern side of the Snowys into the drainage basin on the west, Australia opened up huge areas to agriculture that had been previously too arid to farm. But even after the water diversion scheme was completed, the region remained sparsely populated and the Great Divide still seperates much of the population from the interior of the continent. The range itself is ancient and, indeed, may be one of the oldest mountain ranges in the world. Its relatively low altitude and gentle slopes, reflect hundreds of millions of years of erosion. The land to the immediate north and east of Kosciuszko seen in the image above is moderately flat, elevated land with reliable annual snowpack in winter from which the Snowy River receives much of its flow. Unlike most Australian rivers, water flows through the Snowy all year long rather than drying up in summer. In winter, Thredbo becomes a popular ski resort—some of the ski runs are visible here as pink areas where trees are cleared from the runs down the slope back towards the village. In the high-resolution image which shows more of the region around the National Park, the reservoirs of the Snowy Mountain Scheme are quite evident. The north-south trending greenery is the Kosciuszko National Park which extends for a hundred kilometers or so north of the mountain, as well as the neighboring Begong High Plains to the south. The large arc-shaped lake is the Hume Reservior on the Murray River. This image was acquired by Landsat 5's Thematic Mapper (TM) sensor on February 8, 1991. This is a false-color image made using infrared, near-infrared, and red wavelengths (TM bands 5, 4, and 3). In this scheme, bare land without vegetation is pink, green areas show healthy vegetation and forests, and water appears dark blue. [Editor's Note: This is one in an ongoing series of Landsat scenes of the Seven Summits. Previous peaks include Asia's Mt. Everest, North America's Denali/Mt. McKinley, South America's Cerro Aconcagua, and Africa's Kilimanjaro.] Image courtesy the University of Maryland Global Land Cover Facility |
|
Mt. Kosciuszko
| Title |
Mt. Kosciuszko |
| Description |
The 2,228-meter-tall (7,310-foot) Mt. Kosciuszko lies at the southern end of Australia's Snowy Mountains, which define the Kosciuszko National Park. Though it is the tallest mountain on the continent, Kosciuszko is very easy to climb. In summer, it is a scramble up the slope from the Thredbo Village (or you can take the chairlift!) to the plateau, and a gentle 6-km (4-mile) walk to the mountain. The sensitive alpine grasses are protected from the foot traffic by a steel grate, making the walk all the less challenging (though highly discouraged by the Park Service when thunderstorms are threatening!). The gratework ends at a car passable road (though no traffic is permitted past Charlotte's Pass) on which it is another 10-minute stroll to the peak. In summer, it is a pleasant and cool hike of an hour or two, while in winter the elevated plains are covered in deep snow, but still quite passable on skis or snowshoes. Hardly Everest! In fact, "peak baggers" have suggested that the Seven Summits should instead include New Zealand's Mt. Cook or Indonesia's Puncak Jaya (also known as Carstenz Pyramid). However, Oceania is not a continent, so Kosciuszko is the true highest peak on the Australian continent. The mountain's name (known as "Kozzy" to Australians) comes from the fertile imagination of the first European explorer to reach the Snowy Mountains, Paul Strzlecki. On arriving in the Snowy Mountains in 1840, he thought the mountain's gentle slopes were suggestive of the tomb of the Polish general, Thaddeus Kosciuszko, who assisted the Americans in the 1770s in their war against the British, and in the 1790s with the Polish again Russia. However, for many decades the mountain's name was mispelled "Kosciusko" by Australians and was only corrected in the 1990s during trade negotiations with Poland. Aboriginal Australians had been visiting the Snowy Mountains and neighboring Bogong High Plains during the summer months for thousands of years prior to Strzlecki's visit in hunt of the nutritious Bogong moths. Mt. Kosciuszko is part of the Great Dividing Range, a long chain of mountains running along the Australian east coast which seperate the arid inland from the more fertile and densely-populated coastal regions. The Snowy Mountains are the centerpiece of a huge engineering program, in which a series of dams and tunnels were constructed during the 1950s to draw on the reliable water supply from snowmelt into the inland regions for irrigation. By bringing water falling on the eastern side of the Snowys into the drainage basin on the west, Australia opened up huge areas to agriculture that had been previously too arid to farm. But even after the water diversion scheme was completed, the region remained sparsely populated and the Great Divide still seperates much of the population from the interior of the continent. The range itself is ancient and, indeed, may be one of the oldest mountain ranges in the world. Its relatively low altitude and gentle slopes, reflect hundreds of millions of years of erosion. The land to the immediate north and east of Kosciuszko seen in the image above is moderately flat, elevated land with reliable annual snowpack in winter from which the Snowy River receives much of its flow. Unlike most Australian rivers, water flows through the Snowy all year long rather than drying up in summer. In winter, Thredbo becomes a popular ski resort—some of the ski runs are visible here as pink areas where trees are cleared from the runs down the slope back towards the village. In the high-resolution image which shows more of the region around the National Park, the reservoirs of the Snowy Mountain Scheme are quite evident. The north-south trending greenery is the Kosciuszko National Park which extends for a hundred kilometers or so north of the mountain, as well as the neighboring Begong High Plains to the south. The large arc-shaped lake is the Hume Reservior on the Murray River. This image was acquired by Landsat 5's Thematic Mapper (TM) sensor on February 8, 1991. This is a false-color image made using infrared, near-infrared, and red wavelengths (TM bands 5, 4, and 3). In this scheme, bare land without vegetation is pink, green areas show healthy vegetation and forests, and water appears dark blue. [Editor's Note: This is one in an ongoing series of Landsat scenes of the Seven Summits. Previous peaks include Asia's Mt. Everest, North America's Denali/Mt. McKinley, South America's Cerro Aconcagua, and Africa's Kilimanjaro.] Image courtesy the University of Maryland Global Land Cover Facility |
|
Shrimp Farming in Ecuador
| Title |
Shrimp Farming in Ecuador |
| Description |
Like fields of blue, rectangular shrimp farms line the coast of Ecuador south of the city of Guayaquil in these images. Worldwide, wetlands and coastal mangrove forests have been converted to shrimp ponds in order to farm these crustaceans for food and sale. In Ecuador, the industry started in the late 1960s and rapidly grew. By 1999, 175,255 hectares of land had been converted to shrimp farms. That year, Ecuador was the fourth largest shrimp producer in the world, and the largest in the Western Hemisphere, according to the United Nations Food and Agriculture Organization. In Ecuador, as elsewhere, shrimp farms are typically built along the shore where salt water is easily accessible. Though Ecuador's mangrove forests declined as shrimp farming and other coastal development occurred, salt flats or salt marshes on slightly higher ground have also been converted, as illustrated in these images. The lower image was taken by the Landsat satellite on April 29, 1991. Shrimp farms cover much of the land shown in the image, but a broad swath of tan-gray salt flat still lines the inlet. By March 6, 2006, when the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER [ http://asterweb.jpl.nasa.gov/ ]) satellite took the top image, the salt flat had almost entirely been converted to shrimp farms. A small canal connects the network of shrimp tanks to the inlet, providing a fresh source of water. The large images provide a broader perspective on the extent of the development. In the 1991 Landsat image, 143 square kilometers of land had been converted to shrimp ponds. In the 2006 ASTER image, shrimp farms cover 243 square kilometers. Roughly 83 percent of the region's wetlands and salt flats were eliminated by shrimp farms. NASA images created by Jesse Allen, Earth Observatory. ASTER data provided courtesy of the NASA/GSFC/MITI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team. [ http://asterweb.jpl.nasa.gov/ ] Landsat data obtained from the University of Maryland's Global Land Cover Facility. [ http://www.landcover.org/ ] |
|
Shrimp Farming in Ecuador
| Title |
Shrimp Farming in Ecuador |
| Description |
Like fields of blue, rectangular shrimp farms line the coast of Ecuador south of the city of Guayaquil in these images. Worldwide, wetlands and coastal mangrove forests have been converted to shrimp ponds in order to farm these crustaceans for food and sale. In Ecuador, the industry started in the late 1960s and rapidly grew. By 1999, 175,255 hectares of land had been converted to shrimp farms. That year, Ecuador was the fourth largest shrimp producer in the world, and the largest in the Western Hemisphere, according to the United Nations Food and Agriculture Organization. In Ecuador, as elsewhere, shrimp farms are typically built along the shore where salt water is easily accessible. Though Ecuador's mangrove forests declined as shrimp farming and other coastal development occurred, salt flats or salt marshes on slightly higher ground have also been converted, as illustrated in these images. The lower image was taken by the Landsat satellite on April 29, 1991. Shrimp farms cover much of the land shown in the image, but a broad swath of tan-gray salt flat still lines the inlet. By March 6, 2006, when the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER [ http://asterweb.jpl.nasa.gov/ ]) satellite took the top image, the salt flat had almost entirely been converted to shrimp farms. A small canal connects the network of shrimp tanks to the inlet, providing a fresh source of water. The large images provide a broader perspective on the extent of the development. In the 1991 Landsat image, 143 square kilometers of land had been converted to shrimp ponds. In the 2006 ASTER image, shrimp farms cover 243 square kilometers. Roughly 83 percent of the region's wetlands and salt flats were eliminated by shrimp farms. NASA images created by Jesse Allen, Earth Observatory. ASTER data provided courtesy of the NASA/GSFC/MITI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team. [ http://asterweb.jpl.nasa.gov/ ] Landsat data obtained from the University of Maryland's Global Land Cover Facility. [ http://www.landcover.org/ ] |
|
Korean Demilitarized Zone: I
…
nasa, nasaimageofthedaygalle
…
On July 27, 1953, an armisti
…
landsat_dmz_korea
| mediatype |
IMAGE |
| mediatype |
image |
| date |
1991 |
| creator |
NASA -- Image courtesy Jesse Allen, NASA's Earth Observatory, Goddard Space Flight Center |
| identifier |
landsat_dmz_korea |
|
Perspective View, Syracuse,
…
PIA02759
Sol (our sun)
C-Band Interferometric Radar
…
| Title |
Perspective View, Syracuse, Oneida Lake, Utica, Upstate New York |
| Original Caption Released with Image |
Imagery and Mapping Agency (NIMA) 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, CA, for NASA's Earth Science Enterprise, Washington, DC. Size: 112 kilometers wide, 176 kilometers distance (69 by 109 miles) Location: 43 deg. North lat., 76 deg. West lon. Orientation: View east southeast Colors: Landsat bands 1,2,3 in blue, green, and red Date Acquired: February 13, 2000 (SRTM), October 18, 1991 (Landsat) Image: NASA/JPL/NIMA, This perspective view of upstate New York shows Lake Ontario in the lower left, the Adirondack Mountains in the upper left, and the Catskill Mountains on the right. This image was generated using topographic data from SRTM and an enhanced true-color Landsat 5 satellite image. Topographic shading in the image was enhanced with false shading derived from the elevation model. Topographic expression is exaggerated 6X. Fall foliage appears in a variety of colors, as expected for the mid-October Landsat data used here. Redder vegetation generally occurs at higher elevations and toward the north (left), especially in the Adirondack Mountains. The back edge of the data set forms a false skyline. Oneida Lake is just below the scene center. From the lake, Syracuse is toward the lower right, Rome is toward the upper left, and Utica is directly upward from the lake. Oswego is on the shore of Lake Ontario at the bottom edge of the image. All four cities appear whitish. The other whitish areas toward the north (left) are thin clouds in the satellite image. At Herkimer, just beyond Utica, the Mohawk River exits the Adirondacks and flows eastward into rugged terrain and onward toward Albany. Upon close inspection at full resolution, one can see the Erie Canal (dark blue line) running east from Oneida Lake to connect to the Mohawk River. Other parts of the canal connect to the Oswego River running north (left) to Lake Ontario, to Onandaga Lake next to Syracuse, and Cayuga Lake in the lower right corner of the image (just the edge of the lake). Parts of Owasco, Skaneateles, and Otisco Lakes are visible in the lower right (bottom to top). These are some of the Finger Lakes of central New York, with their narrow valleys (Otisco Lake is almost completely hidden by its valley walls). At the full image resolution, a thin white line marks the New York State Thruway from the bottom to the top of the image, passing north(left) of the Onandaga Lake next to Syracuse and through Utica and Herkimer. The valley between the Adirondacks to the left (north) and the Catskills to the right guides both the Erie Canal and New York State Thruway on their way to Albany and the Hudson River (both off the edge of the image), illustrating the importance of topography in transportation. Elevation data used in this image was 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 |
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Shrimp Farms, Ecuador
PIA01911
Sol (our sun)
ASTER
| Title |
Shrimp Farms, Ecuador |
| Original Caption Released with Image |
In many parts of the world, wetlands are being converted to shrimp ponds in order to farm these crustaceans for food and sale. One example is on the west coast of Ecuador, south of Guayaquil. The 1991 Landsat image on top shows a coastal area where 143 square kilometers of wetlands were converted to shrimp ponds. By the time ASTER acquired the bottom image in 2001, 243 square kilometers had been converted, eliminating 83% of the wetlands. These scenes cover an area of 30 x 31 km, and are centered near 3.4 degrees south latitude and 80.2 degrees west longitude. With its 14 spectral bands from the visible to the thermal infrared wavelength region, and its high spatial resolution of 15 to 90 meters (about 50 to 300 feet), ASTER images Earth to map and monitor the changing surface of our planet. ASTER is one of five Earth-observing instruments launched December 18, 1999, on NASA's Terra satellite. The instrument was built by Japan's Ministry of Economy, Trade and Industry. A joint U.S./Japan science team is responsible for validation and calibration of the instrument and the data products. The broad spectral coverage and high spectral resolution of ASTER provides scientists in numerous disciplines with critical information for surface mapping, and monitoring of dynamic conditions and temporal change. Example applications are: monitoring glacial advances and retreats, monitoring potentially active volcanoes, identifying crop stress, determining cloud morphology and physical properties, wetlands evaluation, thermal pollution monitoring, coral reef degradation, surface temperature mapping of soils and geology, and measuring surface heat balance. The U.S. science team is located at NASA's Jet Propulsion Laboratory, Pasadena, Calif. The Terra mission is part of NASA's Science Mission Directorate. Size: 30 by 31 kilometers (18.6 by 19.2 miles) Location: 3.4 degrees South latitude, 80.2 degrees West longitude Orientation: North at top Image Data: Landsat bands 4,3 and 2, ASTER bands 3, 2, and 1 Original Data Resolution: Landsat 30 meters (24.6 feet), ASTER 15 meters (49.2 feet) Dates Acquired: Landsat: April 29, 1991, ASTER March 31, 2001 |
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