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Tropical Cyclone Percy
| Title |
Tropical Cyclone Percy |
| Description |
On February 27, 2005, Tropical Cyclone Percy continued to gather steam as it struck Swain?s Island, a tiny island in American Samoa. Tropical Cyclone Percy is the fourth large cyclone to sweep across the South Pacific in as many weeks, and at the time this image was taken at 10:05 a.m., local time, the storm was the equivalent of a Category 3 Hurricane with winds of 195 kilometers per hour (121 mph) and gusts to 240 kph (150 mph). By March 1, Percy would reach Category 4 status on the Saffir-Simpson Hurricane Scale, with winds of 213 kph (132 mph) and gusts to 260 kph (161 mph). The Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA?s Terra [ http://terra.nasa.gov/ ] satellite captured this true-color image of the storm on February 27. NASA image created by Jesse Allen, Earth Observatory, using data obtained from the Goddard DAAC. |
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Tropical Cyclone Percy: Natu
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nasa, nasanaturalhazards
On February 27, 2005, Tropic
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cookis_tmo_27feb05
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2005-02-27 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
cookis_tmo_27feb05 |
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Tropical Cyclones Olaf and N
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nasa, nasaimageofthedaygalle
…
This colorful image superimp
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nancyolaf_QST_2005046
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2005-02-15 |
| creator |
NASA -- NASA image courtesy Timothy Liu, Wendy Tang, and Xiaosu Xie, of the winds.jpl.nasa.gov/ QuikSCAT Science Team at the Jet Propulsion Laboratory. |
| identifier |
nancyolaf_QST_2005046 |
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Upolu Island, Western Samoa
PIA02854
Sol (our sun)
AirSAR
| Title |
Upolu Island, Western Samoa |
| Original Caption Released with Image |
Island nations in the South Pacific Ocean experience natural disasters associated with typhoons, and with their proximity to the Pacific Ocean's "Ring of Fire." This radar image shows most of the northern coast of the island of Upolu in the nation of Western Samoa. Disaster managers use digital elevation models (DEMs) generated from radar data to assist in research toward disaster mitigation and management. Geologists also use DEM data of volcanic features, such as the line of circular craters in this image, to study eruption rates and volumes, and volcanic landform evolution. The capital of Western Samoa, Apia, is in the lower left of the image. Angular black areas in the image are areas where steep topography causes holes in the data, these holes can be filled in by collecting data at other look directions. Color represents topography and intensity represents across-section of the radar backscatter. Since rough areas return more of the incident signal, they appear brighter on the image than relatively smooth areas, such as the ocean surface , along the left side of the image. This image was acquired by the AIRborne Synthetic Aperture (AIRSAR) radar instrument aboard a DC-8 aircraft operated out of NASA's Dryden Flight Research Center. AIRSAR collects fully polarimetric data at three wavelengths, C-band(0.057 meter), L-band (0.25 meter) and P-band (0.68 meter). AIRSAR also collects cross-track and along track interferometric data that results in topographic measurements and motion detection, respectively. This image was collected during the Pacific Rim mission, a three-month mission from July to October 2000 that collected data at over 200 sites in eighteen countries and territories around the Pacific Rim. AIRSAR is managed by NASA's Jet Propulsion Laboratory, Pasadena, CA, for NASA's Earth Science Enterprise,Washington, D.C. Size: 10 km (6.2 miles) x 63 km (37.3 miles) Location: 14.16 deg. North lat., 171.75 deg. West Orientation: North towards the left side of image Date Acquired: August 10, 2000 |
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Upolu Island, Western Samoa
PIA02853
Sol (our sun)
AirSAR
| Title |
Upolu Island, Western Samoa |
| Original Caption Released with Image |
Island nations in the South Pacific Ocean experience natural disasters associated with typhoons, and with their proximity to the Pacific Ocean's "Ring of Fire." This radar image shows the western end of the island of Upolu in the nation of Western Samoa. Disaster managers use digital elevation models (DEMs) generated from radar data to assist in research toward disaster mitigation and management. Geologists also use DEM data of volcanic features, such as the circular craters in this image, to study eruption rates and volumes, and volcanic landform evolution. Black areas near the top of the image are areas where steep topography causes holes in the data, these holes can be filled in by collecting data at other look directions. Color represents topography and intensity represents across-section of the radar backscatter. Since rough areas return more of the incident signal, they appear brighter on the image than relatively smooth areas, such as the ocean surface at the top of the image. This image was acquired by the AIRborne Synthetic Aperture (AIRSAR) radar instrument aboard a DC-8 aircraft operated out of NASA's Dryden Flight Research Center. AIRSAR collects fully polarimetric data at three wavelengths, C-band(0.057 meter), L-band (0.25 meter) and P-band (0.68 meter). AIRSAR also collects cross-track and along track interferometric data that results in topographic measurements and motion detection, respectively. This image was collected during the Pacific Rim mission, a three-month mission from July to October 2000 that collected data at over 200 sites in eighteen countries and territories around the Pacific Rim. AIRSAR is managed by NASA's Jet Propulsion Laboratory, Pasadena, CA, for NASA's Earth Science Enterprise,Washington, D.C. Size: 10 km (6.2 miles) x 10 km (6.2 miles) Location: 14.02 deg. North lat., 171.52 deg. West Orientation: North at top Date Acquired: August 10, 2000 |
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Shaded Relief Mosaic of Umna
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PIA03509
Sol (our sun)
AirSAR
| Title |
Shaded Relief Mosaic of Umnak Island, Aleutian Islands, Alaska |
| Original Caption Released with Image |
This image is a shaded relief mosaic of Umnak Island in Alaska's Aleutian Islands. It was created with Airsar data that was geocoded and combined into this mosaic as part of a NASA-funded Alaska Digital Elevation Model Project at the Alaska Synthetic Aperture Radar Facility (ASF) at the University of Alaska Geophysical Institute in Fairbanks, Alaska. Airsar collected the Alaska data as part of its PacRim 2000 Mission, which took the instrument to French Polynesia, American and Western Samoa, Fiji, New Zealand, Australia, New Guinea, Indonesia, Malaysia, Cambodia, Philippines, Taiwan, South Korea, Japan, Northern Marianas, Guam, Palau, Hawaii and Alaska. Airsar, part of NASA's Airborne Science Program, is managed for NASA's Earth Science Enterprise by JPL. JPL is a division of the California Institute of Technology in Pasadena. |
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Perspective View of Umnak Is
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PIA03508
Sol (our sun)
AirSAR
| Title |
Perspective View of Umnak Island, Aleutian Islands, Alaska (#2) |
| Original Caption Released with Image |
This image is a perspective view of Umnak Island, one of Alaska's Aleutian Islands. The active Okmok volcano appears in the center of the island. The image was created by draping a Landsat 7 Thematic Mapper image over a digital elevation mosaic derived from Airsar data. This work was conducted as part of a NASA-funded Alaska Digital Elevation Model Project at the Alaska Synthetic Aperture Radar Facility (ASF) at the University of Alaska Geophysical Institute in Fairbanks, Alaska. Airsar collected the Alaska data as part of its PacRim 2000 Mission, which took the instrument to French Polynesia, American and Western Samoa, Fiji, New Zealand, Australia, New Guinea, Indonesia, Malaysia, Cambodia, Philippines, Taiwan, South Korea, Japan, Northern Marianas, Guam, Palau, Hawaii and Alaska. Airsar, part of NASA's Airborne Science Program, is managed for NASA's Earth Science Enterprise by JPL. JPL is a division of the California Institute of Technology in Pasadena. |
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Perspective View of Umnak Is
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PIA03507
Sol (our sun)
AirSAR
| Title |
Perspective View of Umnak Island, Aleutian Islands, Alaska (#1) |
| Original Caption Released with Image |
This image is a perspective view of Umnak Island, one of Alaska's Aleutian Islands. The active Okmok volcano appears in the center of the island. The image was created by draping a Landsat 7 Thematic Mapper image over a digital elevation mosaic derived from Airsar data. This work was conducted as part of a NASA-funded Alaska Digital Elevation Model Project at the Alaska Synthetic Aperture Radar Facility (ASF) at the University of Alaska Geophysical Institute in Fairbanks, Alaska. Airsar collected the Alaska data as part of its PacRim 2000 Mission, which took the instrument to French Polynesia, American and Western Samoa, Fiji, New Zealand, Australia, New Guinea, Indonesia, Malaysia, Cambodia, Philippines, Taiwan, South Korea, Japan, Northern Marianas, Guam, Palau, Hawaii and Alaska. Airsar, part of NASA's Airborne Science Program, is managed for NASA's Earth Science Enterprise by JPL. JPL is a division of the California Institute of Technology in Pasadena. |
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Perspective View of Okmok Vo
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PIA03511
Sol (our sun)
AirSAR
| Title |
Perspective View of Okmok Volcano, Aleutian Islands, Alaska (#2) |
| Original Caption Released with Image |
This perspective view shows the caldera of the Okmok volcano in Alaska's Aleutian Islands. The shaded relief was generated from and draped over an Airsar-derived digital elevation mosaic. Airsar collected the Alaska data as part of its PacRim 2000 Mission, which took the instrument to French Polynesia, American and Western Samoa, Fiji, New Zealand, Australia, New Guinea, Indonesia, Malaysia, Cambodia, Philippines, Taiwan, South Korea, Japan, Northern Marianas, Guam, Palau, Hawaii and Alaska. Airsar, part of NASA's Airborne Science Program, is managed for NASA's Earth Science Enterprise by JPL. JPL is a division of the California Institute of Technology in Pasadena. |
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Perspective View of Okmok Vo
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PIA03510
Sol (our sun)
AirSAR
| Title |
Perspective View of Okmok Volcano, Aleutian Islands, Alaska (#1) |
| Original Caption Released with Image |
This perspective view shows the caldera of the Okmok volcano in Alaska's Aleutian Islands. The shaded relief was generated from and draped over an Airsar-derived digital elevation mosaic. Airsar collected the Alaska data as part of its PacRim 2000 Mission, which took the instrument to French Polynesia, American and Western Samoa, Fiji, New Zealand, Australia, New Guinea, Indonesia, Malaysia, Cambodia, Philippines, Taiwan, South Korea, Japan, Northern Marianas, Guam, Palau, Hawaii and Alaska. Airsar, part of NASA's Airborne Science Program, is managed for NASA's Earth Science Enterprise by JPL. JPL is a division of the California Institute of Technology in Pasadena. |
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