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Images of Sacramento and Goddard Space Flight Center (GSFC)
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Sacramento Flyby
| Title |
Sacramento Flyby |
| Abstract |
This scene shows Landsat Thematic Mapper data from the shortwave infrared (TM band 5), infrared (TM band 4), and visible green (TM band 2) channels of Sacramento. The TM data was collected by Landsat 5 on the 27th of September, 1997. |
| Completed |
1999-04-09 |
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Sacramento Flyby
| Title |
Sacramento Flyby |
| Abstract |
This scene shows Landsat Thematic Mapper data from the shortwave infrared (TM band 5), infrared (TM band 4), and visible green (TM band 2) channels of Sacramento. The TM data was collected by Landsat 5 on the 27th of September, 1997. |
| Completed |
1999-04-09 |
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San Francisco Onion Layers (
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| Title |
San Francisco Onion Layers (321) and zoom to Sacramento River |
| Completed |
1999-04-09 |
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Heavy Rains in Northern Cali
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| Title |
Heavy Rains in Northern California |
| Description |
A powerful storm system brought high winds and heavy downpours to parts of central and northern California, causing localized flooding and knocking out power in the San Francisco Bay area. The weather station on Angel Island in San Francisco Bay measured strong wind gusts, including one that peaked at 156 kilometers per hour (98 miles per hour). This storm system was brought in by a powerful subtropical jet steam, which provided moisture and strong upper-level winds. The system spawned thunderstorms that brought lightning and sizeable hail around Sacramento. Coastal regions also measured heavy rainfall, though there was no widespread flooding there. The Tropical Rainfall Measuring Mission (TRMM) monitors rainfall based on a near-real-time, Multi-satellite Precipitation Analysis (MPA) at NASA's Goddard Space Flight Center. This image shows MPA rainfall totals for the central and northern West Coast from February 22 to March 1, 2006. The highest rainfall totals for the period are around 120 millimeters, about 5 inches, shown in red. These rainfall amounts occur along the western slopes of the coastal range, in the Klamath Mountains near the border with Oregon, and over the northern Sierra Nevada on the downwind side of the Sacramento Valley. The mountains forced moisture from the humid air rising over the slopes. MPA rainfall totals for the San Francisco Bay area are rather light, while the areas around Sacramento received a little over 70 millimeters, about 3 inches, shown in the brighter greens. The TRMM satellite was launched into service in November of 1997. It was engineered to measure rainfall over the global Tropics using both passive and active sensors, including the first and only precipitation radar in space. TRMM is a joint mission between NASA and the Japanese space agency, JAXA. Image produced by Hal Pierce (SSAI/NASA GSFC) and caption by Steve Lang (SSAI/NASA GSFC). |
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Levee Break Floods Central C
…
| Title |
Levee Break Floods Central California |
| Description |
A broken levee near the San Joaquim-Sacramento River delta flooded nearly 12,000 acres of farmland in Central California on June 3, 2004. According to news reports, about 300 people were evacuated from the flood region. An intricate series of levees and canals channel the fresh water from melting snow in the Sierra Nevada Mountains to the farmland in California?s Central Valley. A break on one levy can affect the distribution of water to others. In this case, up to one million acres of farmland may receive less water during June, the typical peak irrigation month. Additionally, the change in the water level could draw salty water from the San Francisco Bay into the freshwater delta, threatening to contaminate the drinking water of many of California?s cities. The levee that broke is about 20 miles (32 kilometers) west of Stockton, and the breach allowed water from the Middle River to create a vast lake, visible in imagery taken by the Moderate Resolution Imaging Spectroradiometer [ http://modis.gsfc.nasa.gov ] (MODIS) on NASA?s Aqua [ http://aqua.nasa.gov/ ] satellite on June 5. A false-color MODIS image taken on June 2 shows the water network before the levee broke. In both scenes, tan and bright green squares are agricultural fields. The high-resolution images provided above are at MODIS? maximum resolution. Both the June 5 [ http://rapidfire.sci.gsfc.nasa.gov/gallery/?2004157-0605/California.A2004157.2110.721 ] and June 2 [ http://rapidfire.sci.gsfc.nasa.gov/gallery/?2004154-0602/California.A2004154.1900.721 ] images are available in additional resolutions. Image courtesy Jacques Descloitres, MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC |
|
Levee Break Floods Central C
…
| Title |
Levee Break Floods Central California |
| Description |
A broken levee near the San Joaquim-Sacramento River delta flooded nearly 12,000 acres of farmland in Central California on June 3, 2004. According to news reports, about 300 people were evacuated from the flood region. An intricate series of levees and canals channel the fresh water from melting snow in the Sierra Nevada Mountains to the farmland in California?s Central Valley. A break on one levy can affect the distribution of water to others. In this case, up to one million acres of farmland may receive less water during June, the typical peak irrigation month. Additionally, the change in the water level could draw salty water from the San Francisco Bay into the freshwater delta, threatening to contaminate the drinking water of many of California?s cities. The levee that broke is about 20 miles (32 kilometers) west of Stockton, and the breach allowed water from the Middle River to create a vast lake, visible in imagery taken by the Moderate Resolution Imaging Spectroradiometer [ http://modis.gsfc.nasa.gov ] (MODIS) on NASA?s Aqua [ http://aqua.nasa.gov/ ] satellite on June 5. A false-color MODIS image taken on June 2 shows the water network before the levee broke. In both scenes, tan and bright green squares are agricultural fields. The high-resolution images provided above are at MODIS? maximum resolution. Both the June 5 [ http://rapidfire.sci.gsfc.nasa.gov/gallery/?2004157-0605/California.A2004157.2110.721 ] and June 2 [ http://rapidfire.sci.gsfc.nasa.gov/gallery/?2004154-0602/California.A2004154.1900.721 ] images are available in additional resolutions. Image courtesy Jacques Descloitres, MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC |
|
Levee Break Floods Central C
…
| Title |
Levee Break Floods Central California |
| Description |
A broken levee near the San Joaquim-Sacramento River delta flooded nearly 12,000 acres of farmland in Central California on June 3, 2004. According to news reports, about 300 people were evacuated from the flood region. An intricate series of levees and canals channel the fresh water from melting snow in the Sierra Nevada Mountains to the farmland in California?s Central Valley. A break on one levy can affect the distribution of water to others. In this case, up to one million acres of farmland may receive less water during June, the typical peak irrigation month. Additionally, the change in the water level could draw salty water from the San Francisco Bay into the freshwater delta, threatening to contaminate the drinking water of many of California?s cities. The levee that broke is about 20 miles (32 kilometers) west of Stockton, and the breach allowed water from the Middle River to create a vast lake, visible in imagery taken by the Moderate Resolution Imaging Spectroradiometer [ http://modis.gsfc.nasa.gov ] (MODIS) on NASA?s Aqua [ http://aqua.nasa.gov/ ] satellite on June 5. A false-color MODIS image taken on June 2 shows the water network before the levee broke. In both scenes, tan and bright green squares are agricultural fields. The high-resolution images provided above are at MODIS? maximum resolution. Both the June 5 [ http://rapidfire.sci.gsfc.nasa.gov/gallery/?2004157-0605/California.A2004157.2110.721 ] and June 2 [ http://rapidfire.sci.gsfc.nasa.gov/gallery/?2004154-0602/California.A2004154.1900.721 ] images are available in additional resolutions. Image courtesy Jacques Descloitres, MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC |
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Moonlight Fire, California
| Title |
Moonlight Fire, California |
| Description |
Northerly winds drove the Moonlight Fire south through the Plumas National Forest in Northern California on September 5, 2007. According to reports from the National Forest Service, [ http://www.inciweb.org/incident/978/ ] the fire had grown to 28,000 acres since its start on September 3, and mandatory evacuations were in effect on September 6. The cause of the fire was still being investigated. This image from the Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov ] on NASA's Aqua [ http://aqua.nasa.gov ] satellite shows the fire spreading smoke over the Sacramento Valley on September 5. The area where MODIS detected actively burning fire is outlined in red. The terrain where the fire is burning has heavy timber, a lot of small fuels (slash) lying on the ground, and 80 percent slopes, the extremely steep terrain is a significant challenge for firefighters. The large image provided above has a spatial resolution (level of detail) of 250 meters per pixel. The MODIS Rapid Response Team provides twice-daily [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?USA1/ ] images of the region in additional resolutions. NASA image courtesy the MODIS Rapid Response Team, [ http://rapidfire.sci.gsfc.nasa.gov ] Goddard Space Flight Center |
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Moonlight Fire, California
| Title |
Moonlight Fire, California |
| Description |
According to the USDA Forest Service's InciWeb information system, the Moonlight Fire in northern California had grown to more than 63,000 acres as of September 11, 2007. Burning in thick forests on steep slopes, the fire had forced mandatory evacuations and closures of the surrounding Plumas National Forest. This image of the fire was captured by the Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov ] on NASA's Terra [ http://terra.nasa.gov ] satellite on September 10. Places where the sensor detected actively burning fire are outlined in red. Smoke blows west over Lake Almanor and toward the Sacramento Valley. The large image provided above has a spatial resolution (level of detail) of 250 meters per pixel. The MODIS Rapid Response Team provides twice-daily [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?USA1 ] images of the region in additional resolutions and formats, including an infrared-enhanced version that highlights burn scars. NASA image courtesy the MODIS Rapid Response Team, [ http://rapidfire.sci.gsfc.nasa.gov ] Goddard Space Flight Center |
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Northern California Floods
| Title |
Northern California Floods |
| Description |
Northern California ushered in 2006 with a series of major storms that inundated the area and left many towns awash in water, mud, and debris. According to a report from the USATODAY.com Website, at least two levees in the Sacramento-San Joaquin Delta region were unable to handle the rising waters and strong winds, and residents nearby evacuated as the water-control structures began leaking. In the wine-country town of Napa perhaps as many as 1,000 homes were flooded along with thousands of acres of rural and agricultural land. The governor declared several counties in the region flood disaster areas. This pair of images shows flooding in the Sacramento-San Joaquin Valley region inland of San Francisco Bay. The image on the left was captured by the Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov ] on NASA's Aqua [ http://aqua.nasa.gov ] satellite on December 10, 2005, while the image at right was captured on January 4, 2006, just days after the severe storms passed through. Dark blue pools of water swamp far larger areas of ground in January than they did in December. The Sacramento River is very wide and turbid, the sediment in the water is reflective and gives the river its lighter blue appearance. Flood control channels alongside the river help carry the additional flows. The northern reaches of San Francisco Bay are also bright with sediment, which may be a mixture of river run-off and churning of the Bay by storm winds. Vegetation is bright green, snow in the Sierra Nevada Mountains is bright blue (upper right), and bare or sparsely vegetated ground appears pinkish or reddish tan. The rain-producing storms that passed through the state became blizzards as they crossed the mountains. A wider-area image [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?USA1/2006004/USA1.2006004.aqua.721 ] produced by the MODIS Rapid Response Team shows snow cover on the Sierra Nevada Mountains and across the Great Basin. NASA image courtesy the MODIS Rapid Response Team, [ http://rapidfire.sci.gsfc.nasa.gov ] Goddard Space Flight Center |
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Fires in California
| Title |
Fires in California |
| Description |
The combined smoke from the Freds and Power Fires in northern California southwest of Lake Tahoe was filling in the northern end of the Sacramento Valley on October 14, 2004. This image was captured by the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA?s Aqua satellite in the afternoon, when smoke had become so thick the actively burning areas of the fire that MODIS on the Terra satellite detected during its morning overpass [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?AERONET_Fresno/2004288/AERONET_Fresno.2004288.terra ] could no longer be picked up. Southwest of Lake Tahoe, the northernmost band of thick smoke is associated with the Freds Fire, while the central and southern ones are associated with the Power Fire. The smoke has risen far enough into the air to be casting a shadow onto another, thinner layer of smoke below. Smoke nestles into the ravines and canyons of the many rivers that run off the Sierra Nevada Mountains, causing them to stand out from the forested terrain. Other landmarks in the scene include San Francisco Bay, along the bottom edge to the left of center, Clear Lake, in the upper left quadrant, the southern end of Nevada?s Pyramid Lake, at upper right, and the gray-colored rock of Yosemite National Park, to the west of Mono Lake at bottom right. A small fire was detected by MODIS in that area and is outlined in red. NASA image courtesy the MODIS Rapid Response Team, NASA-Goddard Space Flight Center |
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Flooding in Northern Califor
…
| Title |
Flooding in Northern California |
| Description |
Heavy rains inundated northern California in mid-December 2002 and gave rise to extensive flooding. The above true color image (right) was acquired on December 18, 2002, by the Moderate Resolution Imaging Spectroradiometer (MODIS) aboard NASA?s Aqua spacecraft. The image shows some of the worst of the flooding around the lakes and tributaries surrounding the Sacramento and Feather rivers north of San Francisco Bay. Normally only small sections of these rivers would be visible in the MODIS image (left, acquired December 6, 2002). The heavy rains were caused by a series of North Pacific storms called extratropical lows. In many areas rain totals exceeded 16 inches. The series of storms may be related to a moderate El Nino currently active across the equatorial Pacific Ocean. Image courtesy Jeff Schmaltz, MODIS Rapid Response Team, NASA GSFC |
|
Flooding in Northern Califor
…
| Title |
Flooding in Northern California |
| Description |
Heavy rains inundated northern California in mid-December 2002 and gave rise to extensive flooding. The above true color image (right) was acquired on December 18, 2002, by the Moderate Resolution Imaging Spectroradiometer (MODIS) aboard NASA?s Aqua spacecraft. The image shows some of the worst of the flooding around the lakes and tributaries surrounding the Sacramento and Feather rivers north of San Francisco Bay. Normally only small sections of these rivers would be visible in the MODIS image (left, acquired December 6, 2002). The heavy rains were caused by a series of North Pacific storms called extratropical lows. In many areas rain totals exceeded 16 inches. The series of storms may be related to a moderate El Nino currently active across the equatorial Pacific Ocean. Image courtesy Jeff Schmaltz, MODIS Rapid Response Team, NASA GSFC |
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Floods in California
| Title |
Floods in California |
| Description |
Two large storms [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=12562 ] pounded California with rain and snow during the last two weeks of October 2004, bringing rain and snowfall totals to record levels for many areas. The resulting high water levels are apparent in the above pair of false color images, both acquired by the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA?s Aqua [ http://aqua.nasa.gov/ ] and Terra [ http://terra.nasa.gov/ ] satellites. In the left image, acquired on November 1, inky black water has pooled in lowlands around the Sacramento River (top left) in areas that were mostly dry on October 13. The River flows south through Sacramento Valley, then turns west to empty into San Pablo Bay, the body of water north of San Francisco Bay on the left edge of the image. Additional flooding is apparent along the Sacramento River near San Pablo Bay and around the Bay itself. In the lower right corner of the image, the San Joaquin River also appears to be flooded in two places where black pools of water surround the river. The high resolution images provided above are at MODIS? maximum resolution of 250 meters per pixel. Both the November 1 and the October 13 [ http://rapidfire.sci.gsfc.nasa.gov/gallery/?2004287-1013/California.A2004287.1920.721 ] images are available in additional resolutions from the MODIS Rapid Response Team. NASA images courtesy Jacques Descloitres, MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC |
|
Floods in California
| Title |
Floods in California |
| Description |
Two large storms [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=12562 ] pounded California with rain and snow during the last two weeks of October 2004, bringing rain and snowfall totals to record levels for many areas. The resulting high water levels are apparent in the above pair of false color images, both acquired by the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA?s Aqua [ http://aqua.nasa.gov/ ] and Terra [ http://terra.nasa.gov/ ] satellites. In the left image, acquired on November 1, inky black water has pooled in lowlands around the Sacramento River (top left) in areas that were mostly dry on October 13. The River flows south through Sacramento Valley, then turns west to empty into San Pablo Bay, the body of water north of San Francisco Bay on the left edge of the image. Additional flooding is apparent along the Sacramento River near San Pablo Bay and around the Bay itself. In the lower right corner of the image, the San Joaquin River also appears to be flooded in two places where black pools of water surround the river. The high resolution images provided above are at MODIS? maximum resolution of 250 meters per pixel. Both the November 1 and the October 13 [ http://rapidfire.sci.gsfc.nasa.gov/gallery/?2004287-1013/California.A2004287.1920.721 ] images are available in additional resolutions from the MODIS Rapid Response Team. NASA images courtesy Jacques Descloitres, MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC |
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Floods in California
| Title |
Floods in California |
| Description |
Two large storms [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=12562 ] pounded California with rain and snow during the last two weeks of October 2004, bringing rain and snowfall totals to record levels for many areas. The resulting high water levels are apparent in the above pair of false color images, both acquired by the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA?s Aqua [ http://aqua.nasa.gov/ ] and Terra [ http://terra.nasa.gov/ ] satellites. In the left image, acquired on November 1, inky black water has pooled in lowlands around the Sacramento River (top left) in areas that were mostly dry on October 13. The River flows south through Sacramento Valley, then turns west to empty into San Pablo Bay, the body of water north of San Francisco Bay on the left edge of the image. Additional flooding is apparent along the Sacramento River near San Pablo Bay and around the Bay itself. In the lower right corner of the image, the San Joaquin River also appears to be flooded in two places where black pools of water surround the river. The high resolution images provided above are at MODIS? maximum resolution of 250 meters per pixel. Both the November 1 and the October 13 [ http://rapidfire.sci.gsfc.nasa.gov/gallery/?2004287-1013/California.A2004287.1920.721 ] images are available in additional resolutions from the MODIS Rapid Response Team. NASA images courtesy Jacques Descloitres, MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC |
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Floods in Central California
| Title |
Floods in Central California |
| Description |
Many California counties were in a state of emergency on April 13, 2006, when the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Aqua [ http://aqua.nasa.gov/ ] satellite acquired the top image. A month of above-average rainfall taxed river systems, levees, and reservoirs in Central California, particularly along the San Joaquin River. Inky black in this false-color image, the river has spread beyond its banks to cover bright green squares of farmland. Earlier in April, two burst levees along the Merced River flooded homes and farms, forcing evacuations, according to news reports. Those floods had subsided by the time this image was acquired, and the Merced River looks much as it did in mid-March, before the floods began. The flooding was not limited to the area shown in this image. The Dartmouth Flood Observatory [ http://www.dartmouth.edu/%7efloods/Archives/2006sum.htm ] also reported flooding along the Consumes, Sacramento, and Navarro Rivers to the north. These floods are visible in the large images provided above and in daily images [ http://rapidfire.sci.gsfc.nasa.gov/fas/?USA1/2006103 ] provided by the MODIS Rapid Response Team. NASA images courtesy the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC. |
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Floods in Central California
| Title |
Floods in Central California |
| Description |
Many California counties were in a state of emergency on April 13, 2006, when the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Aqua [ http://aqua.nasa.gov/ ] satellite acquired the top image. A month of above-average rainfall taxed river systems, levees, and reservoirs in Central California, particularly along the San Joaquin River. Inky black in this false-color image, the river has spread beyond its banks to cover bright green squares of farmland. Earlier in April, two burst levees along the Merced River flooded homes and farms, forcing evacuations, according to news reports. Those floods had subsided by the time this image was acquired, and the Merced River looks much as it did in mid-March, before the floods began. The flooding was not limited to the area shown in this image. The Dartmouth Flood Observatory [ http://www.dartmouth.edu/%7efloods/Archives/2006sum.htm ] also reported flooding along the Consumes, Sacramento, and Navarro Rivers to the north. These floods are visible in the large images provided above and in daily images [ http://rapidfire.sci.gsfc.nasa.gov/fas/?USA1/2006103 ] provided by the MODIS Rapid Response Team. NASA images courtesy the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC. |
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Space Laser Creates Artifici
…
| Title |
Space Laser Creates Artificial Star |
| Explanation |
Some astronomers don't like stars. Bright star fluctuations [ http://antwrp.gsfc.nasa.gov/apod/ap000725.html ] can indicate how the Earth's atmosphere [ http://csep10.phys.utk.edu/astr161/lect/earth/atmosphere.html ] is changing, but many times no bright star exists in the direction where atmospheric information is needed. So rather than try to eradicate existing stars with a laser, these astronomers create an artificial star [ http://www.llnl.gov/str/Guidestr.html ] of their own right where they need it -- with a laser [ http://www.howstuffworks.com/laser.htm ]. Subsequent observations of the artificial laser guide star [ http://op.ph.ic.ac.uk/laser.html ] can reveal information so detailed about the blurring effects of the Earth's atmosphere that much of this blurring can be removed [ http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2001PASP..113..366S ] by rapidly flexing the mirror. Such adaptive optic [ http://www.mtwilson.edu/Science/AdapOpt/Overview/ ] techniques allow high-resolution ground-based observations of real star [ http://antwrp.gsfc.nasa.gov/apod/ap000522.html ]s, planets [ http://antwrp.gsfc.nasa.gov/apod/ap000218.html ], and nebulae [ http://antwrp.gsfc.nasa.gov/apod/ap010220.html ]. Above [ http://www.noao.edu/image_gallery/html/im0216.html ], an artificial star was created with a four-watt laser at Richard B. Dunn Solar Telescope [ http://www.sunspot.noao.edu/DSTWWW/vtt-home.html ] on Sacramento Peak [ http://www.sunspot.noao.edu/index.html ] in New Mexico [ http://www.state.nm.us ]. |
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Fires in California: Natural
…
nasa, nasanaturalhazards
Smoke engulfed the northern
…
california_amo_2008204
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2008-07-22 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
california_amo_2008204 |
|
Levee Break Floods Central C
…
nasa, nasanaturalhazards
* eoimages.gsfc.nasa.gov/ima
…
California_TMO2004157
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2004-06-05 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
California_TMO2004157 |
|
Moonlight Fire, California:
…
nasa, nasanaturalhazards
According to the USDA Forest
…
moon_TMO_2007253
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007-09-10 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
moon_TMO_2007253 |
|
Moonlight Fire, California:
…
nasa, nasanaturalhazards
Northerly winds drove the Mo
…
ncalif_AMO_2007248
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007-09-05 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
ncalif_AMO_2007248 |
|
Northern California Floods:
…
nasa, nasanaturalhazards
Northern California ushered
…
NCalif_floods.AMO2006004
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2006-01-04 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
NCalif_floods.AMO2006004 |
|
Flooding in Northern Califor
…
nasa, nasanaturalhazards
Heavy rains inundated northe
…
california.AMO2002352
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2002-12-18 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
california.AMO2002352 |
|
Flooding in Northern Califor
…
nasa, nasanaturalhazards
Heavy rains inundated northe
…
california.AMO2002352
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2002-12-18 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
california.AMO2002352 |
|
Floods in California: Natura
…
nasa, nasanaturalhazards
* eoimages.gsfc.nasa.gov/ima
…
California_TMO_2004306
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2004-11-01 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
California_TMO_2004306 |
|
ASTER Images San Francisco B
…
PIA02605
Sol (our sun)
ASTER
| Title |
ASTER Images San Francisco Bay Area |
| Original Caption Released with Image |
These images of the San Francisco Bay region were acquired on March 3, 2000 by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA's Terra satellite. Each covers an area 60 kilometers (37 miles) wide and 75 kilometers (47 miles) long. 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 will image the Earth for the next 6 years to map and monitor the changing surface of our planet. Upper Left: The color infrared composite uses bands in the visible and reflected infrared. Vegetation is red, urban areas are gray, sediment in the bays shows up as lighter shades of blue. Thanks to the 15 meter (50-foot) spatial resolution, shadows of the towers along the Bay Bridge can be seen. Upper right: A composite of bands in the short wave infrared displays differences in soils and rocks in the mountainous areas. Even though these regions appear entirely vegetated in the visible, enough surface shows through openings in the vegetation to allow the ground to be imaged. Lower left: This composite of multispectral thermal bands shows differences in urban materials in varying colors. Separation of materials is due to differences in thermal emission properties, analogous to colors in the visible. Lower right: This is a color coded temperature image of water temperature, derived from the thermal bands. Warm waters are in white and yellow, colder waters are blue. Suisun Bay in the upper right is fed directly from the cold Sacramento River. As the water flows through San Pablo and San Francisco Bays on the way to the Pacific, the waters warm up. Advanced Spaceborne Thermal Emission and Reflection Radiometer (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 International Trade and Industry. A joint U.S./Japan science team is responsible for validation and calibration of the instrument and the data products. Dr. Anne Kahle at NASA's Jet Propulsion Laboratory, Pasadena, California, is the U.S. Science team leader, Moshe Pniel of JPL is the project manager. ASTER is the only high resolution imaging sensor on Terra. The primary goal of the ASTER mission is to obtain high-resolution image data in 14 channels over the entire land surface, as well as black and white stereo images. With revisit time of between 4 and 16 days, ASTER will provide the capability for repeat coverage of changing areas on Earth's surface. The broad spectral coverage and high spectral resolution of ASTER will provide scientists in numerous disciplines with critical information for surface mapping, and monitoring 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. |
|
Northern California and San
…
PIA02637
Sol (our sun)
Multi-angle Imaging SpectroR
…
| Title |
Northern California and San Francisco Bay |
| Original Caption Released with Image |
The left image of this pair was acquired by MISR's nadir camera on August 17, 2000 during Terra orbit 3545. Toward the top, and nestled between the Coast Range and the Sierra Nevadas, are the green fields of the Sacramento Valley. The city of Sacramento is the grayish area near the right-hand side of the image. Further south, San Francisco and other cities of the Bay Area are visible. On the right is a zoomed-in view of the area outlined by the yellow polygon. It highlights the southern end of San Francisco Bay, and was acquired by MISR's airborne counterpart, AirMISR, during an engineering check-out flight on August 25, 1997. AirMISR flies aboard a NASA ER-2 high-altitude aircraft and contains a single camera that rotates to different view angles. When this image was acquired, the AirMISR camera was pointed 70 degrees forward of the vertical. Colorful tidal flats are visible in both the AirMISR and MISR imagery. MISR was built and is managed by NASA's Jet Propulsion Laboratory, Pasadena, CA, for NASA's Office of Earth Science, Washington, DC. The Terra satellite is managed by NASA's Goddard Space Flight Center, Greenbelt, MD. JPL is a division of the California Institute of Technology. For more information: http://www-misr.jpl.nasa.gov |
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