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Angora Fire
Title Angora Fire
Description On the weekend of June 23, 2007, a wildfire broke out south of Lake Tahoe, which stretches across the California-Nevada border. By June 28, the Angora Fire [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=14323 ] had burned more than 200 homes and forced some 2,000 residents to evacuate, according to The Seattle Times and the Central Valley Business Times. On June 27, the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) [ http://asterweb.jpl.nasa.gov ] on NASA's Terra [ http://terra.nasa.gov ] satellite captured this image of the burn scar left by the Angora fire. The burn scar is dark gray, or charcoal. Water bodies, including the southern tip of Lake Tahoe and Fallen Leaf Lake, are pale silvery blue, the silver color a result of sunlight reflecting off the surface of the water. Vegetation ranges in color from dark to bright green. Streets are light gray, and the customary pattern of meandering residential streets and cul-de-sacs appears throughout the image, including the area that burned. The burn scar shows where the fire obliterated some of the residential areas just east of Fallen Leaf Lake. According to news reports, the U.S. Forest Service had expressed optimism about containing the fire within a week of the outbreak, but a few days after the fire started, it jumped a defense, forcing the evacuation of hundreds more residents. Strong winds that had been forecast for June 27, however, did not materialize, allowing firefighters to regain ground in controlling the blaze. On June 27, authorities hoped that the fire would be completely contained by July 3. According to estimates provided in the daily report from the National Interagency Fire Center, [ http://www.nifc.gov/information.html ] the fire had burned 3,100 acres (about 12.5 square kilometers) and was about 55 percent contained as of June 28. Some mandatory evacuations remained in effect. You can download a 15-meter-resolution KMZ file of the Angora fire [ http://earthobservatory.nasa.gov/Newsroom/NewImages/Images/tahoe_ast_2007178.kmz ] suitable for use with Google Earth. [ http://earth.google.com/ ] NASA image by Jesse Allen, using data provided courtesy of the NASA/GSFC/MITI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team.
Dust Storm in Southern Calif …
Title Dust Storm in Southern California
Description Along historic Route 66, [ http://www.historic66.com/ ] just southeast of the little town of Amboy, California, lies a dried-up lake. Dry lakebeds are good sources of two things: salt and dust. In this image, the now-parched Bristol Lake offers up both. On April 12, 2007, dust storms menaced the area around Amboy. To the northwest, near Newberry Springs, California, dust hampered visibility and led to a multi-car collision on Interstate 40, killing two people and injuring several others. The same day, the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) [ http://asterweb.jpl.nasa.gov ] on NASA's Terra [ http://terra.nasa.gov ] satellite captured this image of a dust storm in the dry remains of Bristol Lake. Many small dust clouds boil up from the ground surface, casting their shadows to the northwest. A bright white cloud floating over the dust also throws its shadow onto the ground below. East of the dust storm are salt works that stand out from the surrounding landscape thanks to their straight lines and sharp angles. Dark ground surfaces alternate with mined white salt in a network of stripes. When lakes evaporate, chemicals that had been dissolved in the water stay behind, making dry lake beds an ideal place to find heavy concentrations of minerals, including salt. Besides the salt works, something else appears in stark contrast to this arid place. Lush green fields of irrigated crops appear in the east. Besides their color, their orderly arrangement reveals their human-made origin. NASA image created by Jesse Allen, using data provided courtesy of the NASA/GSFC/MITI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team. [ http://asterweb.jpl.nasa.gov/ ]
Dust Storm in Southern Calif …
Title Dust Storm in Southern California
Description Along historic Route 66, [ http://www.historic66.com/ ] just southeast of the little town of Amboy, California, lies a dried-up lake. Dry lakebeds are good sources of two things: salt and dust. In this image, the now-parched Bristol Lake offers up both. On April 12, 2007, dust storms menaced the area around Amboy. To the northwest, near Newberry Springs, California, dust hampered visibility and led to a multi-car collision on Interstate 40, killing two people and injuring several others. The same day, the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) [ http://asterweb.jpl.nasa.gov ] on NASA's Terra [ http://terra.nasa.gov ] satellite captured this image of a dust storm in the dry remains of Bristol Lake. Many small dust clouds boil up from the ground surface, casting their shadows to the northwest. A bright white cloud floating over the dust also throws its shadow onto the ground below. East of the dust storm are salt works that stand out from the surrounding landscape thanks to their straight lines and sharp angles. Dark ground surfaces alternate with mined white salt in a network of stripes. When lakes evaporate, chemicals that had been dissolved in the water stay behind, making dry lake beds an ideal place to find heavy concentrations of minerals, including salt. Besides the salt works, something else appears in stark contrast to this arid place. Lush green fields of irrigated crops appear in the east. Besides their color, their orderly arrangement reveals their human-made origin. NASA image created by Jesse Allen, using data provided courtesy of the NASA/GSFC/MITI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team. [ http://asterweb.jpl.nasa.gov/ ]
Earthquake Raises Reefs in t …
Title Earthquake Raises Reefs in the Solomon Islands
Description When people talk about change happening on a geologic time scale, most of the time, they mean that the change happens over the course of millions of years: the Colorado River gradually cuts through the soft rock of the Colorado Plateau until it has made a 4,000-foot-deep chasm, the Grand Canyon, continents drift centimeters at a time, slowly changing the shape and position of landmasses on the Earth. Most of the time, change is slow, but sometimes, geologic change happens all at once. This was the case on Ranongga Island in the Solomon Islands. In the early morning hours of April 2, 2007, a magnitude 8.1 earthquake shook the Solomon Islands, its epicenter southwest of Ranongga Island. The huge quake pushed much of the island up, raising the coral reefs that ringed the island above the water. In the course of a few minutes, Ranongga Island acquired several meters of new beach. The newly exposed reef forms a gray rim along the eastern shore of the island in the left image, acquired by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on April 12, 2007. In the right image, taken on March 31, 2006, the shallowly submerged reefs color the water a lighter shade of blue. The uplift may be more dramatic than the images show. When ASTER took the 2007 image, the tide was 29.4 centimeters higher than it was when the 2006 image was taken, and yet the uplift is still visible. The lush vegetation that covers the tropical island is bright red in this image, which is made from both visible and infrared light. Out of its aquatic environment, the reef died, becoming the foundation of new land. Such evolution is common in earthquake zones in the Pacific and Indian Oceans. During the December 26, 2004, earthquake that generated the massive Indian Ocean tsunami, Simeulue Island was lifted as much as 150 centimeters (4.9 feet), exposing the reef that surrounded it. A similar set of exposed fossilized reefs on the shores of Papua New Guinea, near the Solomon Islands, provided proof that wobbles in the Earth's orbit trigger ice ages. NASA image created by Jesse Allen, using data provided courtesy of the NASA/GSFC/MITI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team. [ http://asterweb.jpl.nasa.gov/ ]Thanks to Aron Meltzner, California Institute of Technology, for help with image interpretation.
Earthquake Raises Reefs in t …
Title Earthquake Raises Reefs in the Solomon Islands
Description When people talk about change happening on a geologic time scale, most of the time, they mean that the change happens over the course of millions of years: the Colorado River gradually cuts through the soft rock of the Colorado Plateau until it has made a 4,000-foot-deep chasm, the Grand Canyon, continents drift centimeters at a time, slowly changing the shape and position of landmasses on the Earth. Most of the time, change is slow, but sometimes, geologic change happens all at once. This was the case on Ranongga Island in the Solomon Islands. In the early morning hours of April 2, 2007, a magnitude 8.1 earthquake shook the Solomon Islands, its epicenter southwest of Ranongga Island. The huge quake pushed much of the island up, raising the coral reefs that ringed the island above the water. In the course of a few minutes, Ranongga Island acquired several meters of new beach. The newly exposed reef forms a gray rim along the eastern shore of the island in the left image, acquired by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on April 12, 2007. In the right image, taken on March 31, 2006, the shallowly submerged reefs color the water a lighter shade of blue. The uplift may be more dramatic than the images show. When ASTER took the 2007 image, the tide was 29.4 centimeters higher than it was when the 2006 image was taken, and yet the uplift is still visible. The lush vegetation that covers the tropical island is bright red in this image, which is made from both visible and infrared light. Out of its aquatic environment, the reef died, becoming the foundation of new land. Such evolution is common in earthquake zones in the Pacific and Indian Oceans. During the December 26, 2004, earthquake that generated the massive Indian Ocean tsunami, Simeulue Island was lifted as much as 150 centimeters (4.9 feet), exposing the reef that surrounded it. A similar set of exposed fossilized reefs on the shores of Papua New Guinea, near the Solomon Islands, provided proof that wobbles in the Earth's orbit trigger ice ages. NASA image created by Jesse Allen, using data provided courtesy of the NASA/GSFC/MITI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team. [ http://asterweb.jpl.nasa.gov/ ]Thanks to Aron Meltzner, California Institute of Technology, for help with image interpretation.
Earthquake Raises Reefs in t …
Title Earthquake Raises Reefs in the Solomon Islands
Description When people talk about change happening on a geologic time scale, most of the time, they mean that the change happens over the course of millions of years: the Colorado River gradually cuts through the soft rock of the Colorado Plateau until it has made a 4,000-foot-deep chasm, the Grand Canyon, continents drift centimeters at a time, slowly changing the shape and position of landmasses on the Earth. Most of the time, change is slow, but sometimes, geologic change happens all at once. This was the case on Ranongga Island in the Solomon Islands. In the early morning hours of April 2, 2007, a magnitude 8.1 earthquake shook the Solomon Islands, its epicenter southwest of Ranongga Island. The huge quake pushed much of the island up, raising the coral reefs that ringed the island above the water. In the course of a few minutes, Ranongga Island acquired several meters of new beach. The newly exposed reef forms a gray rim along the eastern shore of the island in the left image, acquired by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on April 12, 2007. In the right image, taken on March 31, 2006, the shallowly submerged reefs color the water a lighter shade of blue. The uplift may be more dramatic than the images show. When ASTER took the 2007 image, the tide was 29.4 centimeters higher than it was when the 2006 image was taken, and yet the uplift is still visible. The lush vegetation that covers the tropical island is bright red in this image, which is made from both visible and infrared light. Out of its aquatic environment, the reef died, becoming the foundation of new land. Such evolution is common in earthquake zones in the Pacific and Indian Oceans. During the December 26, 2004, earthquake that generated the massive Indian Ocean tsunami, Simeulue Island was lifted as much as 150 centimeters (4.9 feet), exposing the reef that surrounded it. A similar set of exposed fossilized reefs on the shores of Papua New Guinea, near the Solomon Islands, provided proof that wobbles in the Earth's orbit trigger ice ages. NASA image created by Jesse Allen, using data provided courtesy of the NASA/GSFC/MITI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team. [ http://asterweb.jpl.nasa.gov/ ]Thanks to Aron Meltzner, California Institute of Technology, for help with image interpretation.
Sierra Nevada Range, Mokelum …
Title Sierra Nevada Range, Mokelumne Wilderness
Description South of Lake Tahoe, in the Sierra Nevada mountain range in California, the boundaries of three national forests—Stanislaus, El Dorado, and Humboldt-Toiyabe—meet. At the intersection of these boundaries sits the Mokelumne Wilderness Area, [ http://www.fs.fed.us/r5/stanislaus/visitor/mokelumne.shtml ] which straddles the crest of the Sierra Nevada. On June 29, 2007, the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) [ http://asterweb.jpl.nasa.gov/ ] flying on NASA's Terra [ http://terra.nasa.gov/ ] satellite captured this image of the Mokelumne and surrounding forests. In this simulated true-color image, dark green indicates thick vegetation, pale green indicates sparse vegetation, dark blue indicates water, and beige and gray indicate bare ground. National Park boundaries appear in white. The terrain in the area is rugged, with steep mountain crags interspersed with occasional lakes with jagged contours. At high elevations, forests give way to alpine plants, and finally, to bare rock. A pale shoreline outlines Spicer Reservoir, near the bottom of the image, suggesting a dip in the lake's water level, consistent with warm, dry [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=14393 ] conditions that predominated in the American West in the early summer of 2007. Not all national forests are wilderness area, many forests offer timber concessions. In Stanislaus National Forest, in the lower left corner of this image, tiny pale patches break the forest cover. In the high-resolution imagery, the precise geometric outlines of these patches are more obvious, such patterns are consistent with clear-cut logging. You can download a 15-meter-resolution KMZ file of the Mokelumne Wilderness [ http://earthobservatory.nasa.gov/Newsroom/NewImages/Images/eldorado_ast_2007180.kmz ] suitable for use with Google Earth. [ http://earth.google.com/ ] NASA image by Jesse Allen, using data provided courtesy of the NASA/GSFC/MITI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team.
Fires in Southern California
Title Fires in Southern California
Description Part of the firestorm that swept through Southern California in late October 2007, the Poomacha Fire east of Pauma Valley was still smoldering in a few interior locations as of November 8, according to the National Interagency Fire Center. This image from the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) [ http://asterweb.jpl.nasa.gov ] on NASA's Terra [ http://terra.nasa.gov ] satellite on November 6 shows the burned landscape of the Poomacha Fire using a combination of visible and infrared light. The burned area in the center of the image is bright pink. Naturally bare (or thinly vegetated) land surfaces are lighter pink. Vegetation is bright green. The fire took its name from a street in a community on the reservation, La Jolla Amago, where at least 8 homes were destroyed. You can download a 15-meter-resolution KMZ file of the Poomacha fire scar [ http://earthobservatory.nasa.gov/NaturalHazards/Archive/Nov2007/scal_ast_2007310.kmz ] suitable for use with Google Earth. [ http://earth.google.com/ ] NASA image created by Jesse Allen, using data provided courtesy of NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team. [ http://asterweb.jpl.nasa.gov/ ]
Zaca Wildfire, Southern Cali …
Title Zaca Wildfire, Southern California
Description In early August 2007, the month-old Zaca Fire in Southern California was racing over the hilly terrain along the southwest margin of the Los Padres National Forest. Started accidentally on private ranch land near the forest in early July, the fire quickly got out of control in the hot, dry, windy conditions the area was experiencing in summer 2007. As of August 8, the fire had burned an estimated 72,050 acres and was about 68 percent contained. This image of the fire was captured by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) [ http://asterweb.jpl.nasa.gov ] on NASA'Terra [ http://terra.nasa.gov ] satellite on August 7. Unburned vegetation appears green, while the burned area appears charcoal-colored. Smoke hangs over the area. You can download a 15-meter-resolution KMZ file of the Zaca fire [ http://earthobservatory.nasa.gov/NaturalHazards/Archive/Aug2007/zaca_ast_2007218.kmz ] suitable for use with Google Earth. [ http://earth.google.com/ ] NASA image created by Jesse Allen, using data provided courtesy of the NASA/GSFC/MITI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team.
Zaca Wildfire, Southern Cali …
Title Zaca Wildfire, Southern California
Description In early August 2007, the month-old Zaca Fire in Southern California was racing over the hilly terrain along the southwest margin of the Los Padres National Forest. Started accidentally on private ranch land near the forest in early July, the fire quickly got out of control in the hot, dry, windy conditions the area was experiencing in summer 2007. As of August 8, the fire had burned an estimated 72,050 acres and was about 68 percent contained. This image of the fire was captured by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) [ http://asterweb.jpl.nasa.gov ] on NASA'Terra [ http://terra.nasa.gov ] satellite on August 7. Unburned vegetation appears green, while the burned area appears charcoal-colored. Smoke hangs over the area. You can download a 15-meter-resolution KMZ file of the Zaca fire [ http://earthobservatory.nasa.gov/NaturalHazards/Archive/Aug2007/zaca_ast_2007218.kmz ] suitable for use with Google Earth. [ http://earth.google.com/ ] NASA image created by Jesse Allen, using data provided courtesy of the NASA/GSFC/MITI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team.
Zaca Wildfire, Southern Cali …
nasa, nasanaturalhazards
In early August 2007, the mo …
zaca_ast_2007219
mediatype IMAGE
mediatype image
date 2007-08-07
creator NASA -- NASA Image Of The Day
identifier zaca_ast_2007219
Zaca Wildfire, Southern Cali …
nasa, nasanaturalhazards
In early August 2007, the mo …
zaca_ast_2007219
mediatype IMAGE
mediatype image
date 2007-08-07
creator NASA -- NASA Image Of The Day
identifier zaca_ast_2007219
Earthquake Raises Reefs in t …
nasa, nasanaturalhazards
When people talk about chang …
eranongga_ast_2006090_lrg
mediatype IMAGE
mediatype image
date 2007-04-12
creator NASA -- NASA Image Of The Day
identifier eranongga_ast_2006090_lrg
Earthquake Raises Reefs in t …
nasa, nasanaturalhazards
When people talk about chang …
eranongga_ast_2006090_lrg
mediatype IMAGE
mediatype image
date 2007-04-12
creator NASA -- NASA Image Of The Day
identifier eranongga_ast_2006090_lrg
Earthquake Raises Reefs in t …
nasa, nasanaturalhazards
When people talk about chang …
eranongga_ast_2006090_lrg
mediatype IMAGE
mediatype image
date 2007-04-12
creator NASA -- NASA Image Of The Day
identifier eranongga_ast_2006090_lrg
Dust Storm in Southern Calif …
nasa, nasanaturalhazards
Along historic www.historic6 …
scaldust_ast_2007102
mediatype IMAGE
mediatype image
date 2007-04-12
creator NASA -- NASA Image Of The Day
identifier scaldust_ast_2007102
Fires in Southern California …
nasa, nasanaturalhazards
Part of the firestorm that s …
scal_ast_2007310
mediatype IMAGE
mediatype image
date 2007-11-06
creator NASA -- NASA Image Of The Day
identifier scal_ast_2007310
Dust Storm in Southern Calif …
nasa, nasaimageofthedaygalle …
Along historic www.historic6 …
ge_07603
mediatype IMAGE
mediatype image
date 2007-04-12
creator NASA -- NASA image created by Jesse Allen, using data provided courtesy of the NASA/GSFC/MITI/ERSDAC/JAROS, and U.S./Japan asterweb.jpl.nasa.gov/ ASTER Science Team.
identifier ge_07603
Dust Storm in Southern Calif …
nasa, nasaimageofthedaygalle …
Along historic www.historic6 …
ge_07603
mediatype IMAGE
mediatype image
date 2007-04-12
creator NASA -- NASA image created by Jesse Allen, using data provided courtesy of the NASA/GSFC/MITI/ERSDAC/JAROS, and U.S./Japan asterweb.jpl.nasa.gov/ ASTER Science Team.
identifier ge_07603
Lyme Regis, UK: Image of the …
nasa, nasaimageofthedaygalle …
Along the southern coast of …
lymeregis_ast_2007156
mediatype IMAGE
mediatype image
date 2007-06-05
creator NASA -- NASA image created by Jesse Allen, using data provided courtesy of NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan asterweb.jpl.nasa.gov/ ASTER Science Team.
identifier lymeregis_ast_2007156
Sierra Nevada Range, Mokelum …
nasa, nasaimageofthedaygalle …
South of Lake Tahoe, in the …
eldorado_ast_2007180
mediatype IMAGE
mediatype image
date 2007-06-29
creator NASA -- NASA image by Jesse Allen, using data provided courtesy of the NASA/GSFC/MITI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team.
identifier eldorado_ast_2007180
Angora Fire, Lake Tahoe: Ima …
nasa, nasaimageofthedaygalle …
On the weekend of June 23, 2 …
tahoe_ast_2007178
mediatype IMAGE
mediatype image
date 2007-06-23
creator NASA -- NASA image by Jesse Allen, using data provided courtesy of the NASA/GSFC/MITI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team.
identifier tahoe_ast_2007178
Fire near South Lake Tahoe, …
PIA09698
Sol (our sun)
ASTER
Title Fire near South Lake Tahoe, California
Original Caption Released with Image A destructive forest fire that broke out June 24, 2007 near South Lake Tahoe, Calif., continued to burn June 27 when this image was acquired by the Advanced Spaceborne Thermal Emission and Reflection Radiometer instrument on NASA's Terra satellite. As of June 28, the fire had destroyed about 230 residences and other buildings. In all, about 2,000 people were evacuated, according to South Lake Tahoe Police. The blaze has charred more than 3,100 acres -- about 4.8 square miles -- and was 60 percent contained on June 28. In this ASTER image, the burned area is in gray, a combination of burned forest and some smoke, between Fallen Leaf Lake and the Tahoe Airport. 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 spacecraft. 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: 15 by 15 kilometers (9.3 by 9.3 miles) Location: 38.9 degrees North latitude, 120 degrees West longitude Orientation: North at top Image Data: ASTER Bands 3, 2, and 1 Original Data Resolution: ASTER 15 meters (49.2 feet) Date Acquired: June 27, 2007.
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