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Supernova Remnant Menagerie
| Title |
Supernova Remnant Menagerie |
| General Information |
What is Hubble Heritage? A monthly showcase of new and archival Hubble images. Go to the Heritage site. Back to top [ #top ] |
|
Supernova Remnant Menagerie
| Title |
Supernova Remnant Menagerie |
| General Information |
What is Hubble Heritage? A monthly showcase of new and archival Hubble images. Go to the Heritage site. Back to top [ #top ] |
|
Supernova Remnant Menagerie
| Title |
Supernova Remnant Menagerie |
| General Information |
What is Hubble Heritage? A monthly showcase of new and archival Hubble images. Go to the Heritage site. Back to top [ #top ] |
|
Supernova Remnant Menagerie
| Title |
Supernova Remnant Menagerie |
| General Information |
What is Hubble Heritage? A monthly showcase of new and archival Hubble images. Go to the Heritage site. Back to top [ #top ] |
|
Supernova Remnant Menagerie
| Title |
Supernova Remnant Menagerie |
| General Information |
What is Hubble Heritage? A monthly showcase of new and archival Hubble images. Go to the Heritage site. Back to top [ #top ] |
|
Supernova Remnant Menagerie
| Title |
Supernova Remnant Menagerie |
| General Information |
What is Hubble Heritage? A monthly showcase of new and archival Hubble images. Go to the Heritage site. Back to top [ #top ] |
|
Floods in the Ohio River Val
…
| Title |
Floods in the Ohio River Valley |
| Description |
Heavy rain and snow had swollen the rivers of Indiana, Illinois, and Kentucky, pushing many past flood stage during the first two weeks of January 2005. The flooding occurred after several days of rain and snow fell on the already saturated ground of the U.S. Midwest. Since the water could not be absorbed into the soaked ground, it ran off as flood water. The storms were followed by warm temperatures, which melted the snow and produced further flooding. By January 17, some of the flooding had started to recede, but large tracts of land along the Ohio and Wabash Rivers were still under water. The Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) flying aboard NASA's Aqua [ http://aqua.nasa.gov/ ] satellite captured the top image of the flooded rivers on January 17. The Ohio and Wabash Rivers are the most noticeably flooded, but many other rivers are also much larger than they were on November 25, 2004. On November 25, the Wabash River measured less than 3 pixels across in the 500-meter-resolution MODIS image (the large image provided above). On January 17, the river spanned 18 pixels at its widest point, increasing its width from approximately 1.5 kilometers to 9 kilometers. The Ohio River similarly grew to a width of 13.5 kilometers in the top image. Floods along the Ohio are not unusual, but the timing of this flood was. The Ohio River and its tributaries often flood in the spring when winter's snow melts and runs into regional rivers. This flood, however, occurred in the middle of the winter, which is unusual. NASA images courtesy the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC. The images are available in additional resolutions [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?USA3 ]. |
|
Floods in the Ohio River Val
…
| Title |
Floods in the Ohio River Valley |
| Description |
Heavy rain and snow had swollen the rivers of Indiana, Illinois, and Kentucky, pushing many past flood stage during the first two weeks of January 2005. The flooding occurred after several days of rain and snow fell on the already saturated ground of the U.S. Midwest. Since the water could not be absorbed into the soaked ground, it ran off as flood water. The storms were followed by warm temperatures, which melted the snow and produced further flooding. By January 17, some of the flooding had started to recede, but large tracts of land along the Ohio and Wabash Rivers were still under water. The Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) flying aboard NASA's Aqua [ http://aqua.nasa.gov/ ] satellite captured the top image of the flooded rivers on January 17. The Ohio and Wabash Rivers are the most noticeably flooded, but many other rivers are also much larger than they were on November 25, 2004. On November 25, the Wabash River measured less than 3 pixels across in the 500-meter-resolution MODIS image (the large image provided above). On January 17, the river spanned 18 pixels at its widest point, increasing its width from approximately 1.5 kilometers to 9 kilometers. The Ohio River similarly grew to a width of 13.5 kilometers in the top image. Floods along the Ohio are not unusual, but the timing of this flood was. The Ohio River and its tributaries often flood in the spring when winter's snow melts and runs into regional rivers. This flood, however, occurred in the middle of the winter, which is unusual. NASA images courtesy the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC. The images are available in additional resolutions [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?USA3 ]. |
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Haze Over the Midwestern Uni
…
| Title |
Haze Over the Midwestern United States |
| Description |
High pressure over the central United States led to hot temperatures and an accumulation of pollutants on August 8, 2005. The Environmental Protection Agency warned that air quality index levels could be unhealthy for the Midwest, and western and southern Great Lakes areas. The EPA advised individuals with respiratory sensitivity to avoid outdoor exercise. Meanwhile, as reported by the CBS 2 Chicago Website, Illinois officials designated August 9, 2005, the ninth air pollution action day this summer, and the second air pollution action day in a row. To cut down on ozone accumulation, city officials encouraged Chicago residents to use public transportation. The Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov/ ] flying onboard the Terra [ http://terra.nasa.gov/ ] satellite captured this image on August 8, 2005. In this image, a layer of haze stretches southwards from the Great Lakes through the Midwest. The sharp line running diagonally through the picture is caused by different passes of the Terra satellite. The images from these passes were stitched together to make a complete picture. Because the passes occurred at different times, cloud and aerosol cover differ, but the cloud of haze persists. NASA image courtesy the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC. |
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Hurricane Wilma
| Title |
Hurricane Wilma |
| Description |
(MISR) acquired this sequence of images and cloud-top height observations for Hurricane Wilma as it progressed across the Caribbean in October 2005. Each pair in the sequence has a photo-like view of the storm on the left and a matching color-coded image of cloud-top height on the right. Cloud-top heights range from 0 (purple) to 18 (red) kilometers altitude. Areas where cloud heights could not be determined are shown in dark gray. The pair on the left shows Wilma on Tuesday, October 18, when Hurricane watches were posted for Cuba and Mexico. The central pair shows the eye of Hurricane Wilma just hours before the storm began to cross the Yucatan Peninsula on Friday, October 21. At that time, Wilma was a powerful Category 4 Hurricane on the Saffir-Simpson scale, and had a minimum recorded central pressure of 930 millibars. Hurricane Wilma surged from tropical storm to Category 5 hurricane status in record time, but the storm slowed and weakened considerably after battering Mexico's Yucatan Peninsula and the Caribbean. The right-hand image pair displays the eastern edges of a weakened Wilma, when Wilma had been reduced to Category 2 status and was just starting to reach southern Florida on the morning of Sunday, October 23. Wilma gathered speed and strengthened on Sunday night, crossing Florida as a Category 3 storm on Monday, October 24. On the 18th, Wilma looked a bit ragged. Its eye is located at the center of the left edge, and its outer bands of clouds appear to be dominated by a rather loose collection of thunderstorms. In the photo-like images, these look like areas of "boiling clouds," and in the cloud-height image, these appear as orange blobs, sometimes topped with pinkish-red. On October 21 (center), when Wilma was a Category 4 storm, cloud-top height on the eastern side of the storm near the eye reached 18 kilometers in altitude, with lower heights on the western side. The image from the 23rd shows the eastern edge of Wilma as it approached Florida (upper right) and Cuba (center right). MISR has nine different cameras that view the Earth from a variety of angles. Shifts in the clouds' apparent position from one camera's perspective to another's allows MISR to measure the height of the cloud-tops. MISR scientists have programmed computers to compare the different views, identify features that appear to shift from view to view, and use that information to calculate cloud height automatically. The height fields pictured have not been corrected for the effects of cloud motion. Wind-corrected heights (which have higher accuracy but sparser spatial coverage) are within about 1 kilometer of the heights shown here. The Multi-angle Imaging SpectroRadiometer observes the daylit Earth continuously, viewing the entire globe between 82° North and 82° South latitude every nine days. Each image covers an area of about 380 kilometers by 1,830 kilometers. The data products were generated from a portion of the imagery acquired during Terra orbits, 31037, 31081 and 31110, and utilize data from within blocks 68-83 within World Reference System-2 paths 13, 16 and 18, respectively. Image courtesy NASA/GSFC/LaRC/JPL, MISR Team. Text by Clare Averill (Raytheon RIS/JPL) and Greg McFarquhar (University of Illinois)., Information on cloud-top heights at different stages in the life cycle of the rapidly intensifying Hurricane Wilma may prove useful for evaluating the ability of numerical weather models to predict the intensity changes of hurricanes. NASA's Multi-angle Imaging SpectroRadiometer [ http://www-misr.jpl.nasa.gov/ ] |
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Record Sea Ice Minimum
| Title |
Record Sea Ice Minimum |
| Description |
Arctic sea ice reached a record low [ http://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=17782 ] in September 2007, below the previous record set in 2005 and substantially below the long-term average. This image shows the Arctic as observed by the Advanced Microwave Scanning Radiometer for EOS (AMSR-E) aboard NASA's Aqua [ http://aqua.nasa.gov ] satellite on September 16, 2007. In this image, blue indicates open water, white indicates high sea ice concentration, and turquoise indicates loosely packed sea ice. The black circle at the North Pole results from an absence of data as the satellite does not make observations that far north. Three contour lines appear on this image. The red line is the 2007 minimum, as of September 15, about the same time the record low was reached, and it almost exactly fits the sea ice observed by AMSR-E. The green line indicates the 2005 minimum, the previous record low. The yellow line indicates the median minimum from 1979 to 2000. The contour lines in this image show sea ice extent, as reported [ http://nsidc.org/news/press/2007_seaiceminimum/20070810_index.html ] by the National Snow and Ice Data Center (NSIDC). Another measure of sea ice is area, and this value was initially reported as a record low by The Cryosphere Today [ http://arctic.atmos.uiuc.edu/cryosphere/ ] at the University of Illinois. A simple analogy for these terms is a slice of Swiss cheese. Extent counts everything inside the slice's perimeter as cheese-filled whereas area subtracts the holes from the total amount. A more technical explanation of area versus extent involves pixels. A pixel is the smallest possible unit of the satellite image, and it can have only one value. (How much of the planet's surface a pixel covers depends on the satellite sensor.) Measurements of sea ice area total the amount of sea ice in each pixel. Extent, as measured by NSIDC, sets a threshold of 15 percent, and counts any pixel above that threshold as completely ice-filled. Consequently, estimates of sea ice extent are higher than estimates of sea ice area. NASA image created by Jesse Allen, using AMSR-E data courtesy of the National Snow and Ice Data Center (NSIDC), and sea ice extent contours courtesy of Terry Haran and Matt Savoie, NSIDC, [ http://www.nsidc.org/ ] based on Special Sensor Microwave Imager (SSM/I) data. |
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Floods Along the Ohio River:
…
nasa, nasaimageofthedaygalle
…
Heavy rain and snow had swol
…
ge_05175
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2005-01-17 |
| creator |
NASA -- NASA images courtesy the rapidfire.sci.gsfc.nasa.gov MODIS Rapid Response Team at NASA GSFC. The images are available in rapidfire.sci.gsfc.nasa.gov/subsets/?USA3 additional resolutions . |
| identifier |
ge_05175 |
|
Floods Along the Ohio River:
…
nasa, nasaimageofthedaygalle
…
Heavy rain and snow had swol
…
ge_05175
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2005-01-17 |
| creator |
NASA -- NASA images courtesy the rapidfire.sci.gsfc.nasa.gov MODIS Rapid Response Team at NASA GSFC. The images are available in rapidfire.sci.gsfc.nasa.gov/subsets/?USA3 additional resolutions . |
| identifier |
ge_05175 |
|
Floods Along the Ohio River:
…
nasa, nasaimageofthedaygalle
…
Heavy rain and snow had swol
…
ge_05175
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2005-01-17 |
| creator |
NASA -- NASA images courtesy the rapidfire.sci.gsfc.nasa.gov MODIS Rapid Response Team at NASA GSFC. The images are available in rapidfire.sci.gsfc.nasa.gov/subsets/?USA3 additional resolutions . |
| identifier |
ge_05175 |
|
Floods Along the Ohio River:
…
nasa, nasaimageofthedaygalle
…
Heavy rain and snow had swol
…
ge_05175
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2005-01-17 |
| creator |
NASA -- NASA images courtesy the rapidfire.sci.gsfc.nasa.gov MODIS Rapid Response Team at NASA GSFC. The images are available in rapidfire.sci.gsfc.nasa.gov/subsets/?USA3 additional resolutions . |
| identifier |
ge_05175 |
|
Floods in the Ohio River Val
…
nasa, nasanaturalhazards
* eoimages.gsfc.nasa.gov/ima
…
Ohio_AMO_2005017
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2005-01-17 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
Ohio_AMO_2005017 |
|
Haze Over the Midwestern Uni
…
nasa, nasanaturalhazards
High pressure over the centr
…
midwest_tmo_2005220
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2005-08-08 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
midwest_tmo_2005220 |
|
St. Louis, Missouri
PIA09362
Sol (our sun)
Multi-angle Imaging SpectroR
…
| Title |
St. Louis, Missouri |
| Original Caption Released with Image |
St. Louis is tucked in a bend of the Mississippi River, just south of the point at which the Illinois River joins the larger Mississippi, and where the Missouri River flows in from the west. Drainage patterns to the east, on the Illinois side, are highlighted with green vegetation. Meandering rivers in the verdant Ozark Plateau appear to the south and west. This true-color view from NASA's Multi-angle Imaging SpectroRadiometer (MISR) was taken with the instrument's downward looking (nadir) camera on October 15, 2005. The urban areas of greater St. Louis show up as grey-white, including nearby Kirkwood, Webster Groves, Clayton, University City, Ferguson, St. Ann, St. Charles, and East St. Louis. The region is home to nearly three million people. MISR was built and is managed by NASA's Jet Propulsion Laboratory, Pasadena, Calif., for NASA's Science Mission Directorate, 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. |
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| General Description |
International Space Station Imagery |
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