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Blizzards in the Western Uni …
Title Blizzards in the Western United States
Description A series of heavy winter storms pummeled parts of the western United States between December 24, 2003, and January 3, 2004, blanketing the region with deep snow. Salt Lake City, Utah, reported more than six feet of snow, according to news reports. The blizzards that rolled through California, Nevada, Oregon, Washington, Idaho, Utah, Montana, Wyoming, and Colorado closed roads, knocked out power, and claimed at least two lives in subsequent avalanches. These Moderate Resolution Imaging Spectroradiometer [ http://modis.gsfc.nasa.gov ] (MODIS) images, taken on January 5, 2004, by the Terra [ http://terra.nasa.gov/ ] satellite, show the extent of the snowfall from California in the west to the Dakotas, Nebraska, and Colorado in the east. The Great Salt Lake is the two-toned body of water in the center of the images. In the top image, shown in true color, only a sliver of green land west of the Sierra Nevada Mountains can be see on the left side of the image?clouds and snow obscure the rest of the landscape. The bottom image shows the same scene in false color. Here, snow and ice are dark red and orange, while clouds are white and peach. Water is black. The false color image helps differentiate between cloud cover and snow and ice on the ground. The high resolution images provided above are at 500 meters per pixel. Image courtesy Jesse Allen, based on data from the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC
Blizzards in the Western Uni …
Title Blizzards in the Western United States
Description A series of heavy winter storms pummeled parts of the western United States between December 24, 2003, and January 3, 2004, blanketing the region with deep snow. Salt Lake City, Utah, reported more than six feet of snow, according to news reports. The blizzards that rolled through California, Nevada, Oregon, Washington, Idaho, Utah, Montana, Wyoming, and Colorado closed roads, knocked out power, and claimed at least two lives in subsequent avalanches. These Moderate Resolution Imaging Spectroradiometer [ http://modis.gsfc.nasa.gov ] (MODIS) images, taken on January 5, 2004, by the Terra [ http://terra.nasa.gov/ ] satellite, show the extent of the snowfall from California in the west to the Dakotas, Nebraska, and Colorado in the east. The Great Salt Lake is the two-toned body of water in the center of the images. In the top image, shown in true color, only a sliver of green land west of the Sierra Nevada Mountains can be see on the left side of the image?clouds and snow obscure the rest of the landscape. The bottom image shows the same scene in false color. Here, snow and ice are dark red and orange, while clouds are white and peach. Water is black. The false color image helps differentiate between cloud cover and snow and ice on the ground. The high resolution images provided above are at 500 meters per pixel. Image courtesy Jesse Allen, based on data from the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC
Blizzards in the Western Uni …
Title Blizzards in the Western United States
Description A series of heavy winter storms pummeled parts of the western United States between December 24, 2003, and January 3, 2004, blanketing the region with deep snow. Salt Lake City, Utah, reported more than six feet of snow, according to news reports. The blizzards that rolled through California, Nevada, Oregon, Washington, Idaho, Utah, Montana, Wyoming, and Colorado closed roads, knocked out power, and claimed at least two lives in subsequent avalanches. These Moderate Resolution Imaging Spectroradiometer [ http://modis.gsfc.nasa.gov ] (MODIS) images, taken on January 5, 2004, by the Terra [ http://terra.nasa.gov/ ] satellite, show the extent of the snowfall from California in the west to the Dakotas, Nebraska, and Colorado in the east. The Great Salt Lake is the two-toned body of water in the center of the images. In the top image, shown in true color, only a sliver of green land west of the Sierra Nevada Mountains can be see on the left side of the image?clouds and snow obscure the rest of the landscape. The bottom image shows the same scene in false color. Here, snow and ice are dark red and orange, while clouds are white and peach. Water is black. The false color image helps differentiate between cloud cover and snow and ice on the ground. The high resolution images provided above are at 500 meters per pixel. Image courtesy Jesse Allen, based on data from the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC
Drought on the Great Plains
Title Drought on the Great Plains
Description Across the Great Plains of the United States and Canada, devastating drought spread across grasslands and croplands in summer 2006. Poor winter snowfall and a blisteringly hot summer [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=13742 ] following several years of dry conditions have created a dire situation for many farmers and ranchers across the region. According to a recent article [ http://www.nytimes.com/2006/08/29/us/29drought.html?ex=1157688000&en=13a216546b7d4243&ei=5070 ] on the New York Times Website, many people are comparing the conditions to the Dust Bowl of the 1930s. The widespread drought conditions are obvious in this vegetation anomaly image based on data from the Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov ] on NASA's Terra [ http://terra.nasa.gov ] satellite. Places where vegetation is healthier or more abundant than average are green, places where vegetation is about the same as average are pale yellow, and places where vegetation is not as healthy or abundant as average are brown. Gray patches show where no data were available, probably because of persistent clouds. One of the most common satellite-based vegetation maps is a scale, or index, of vegetation greenness called the "NDVI," short for Normalized Difference Vegetation Index. This image compares NDVI values from July 28-August 12, 2006, to the average values from 2001-2005. Vegetation was faring worst along the Missouri River through North and South Dakota, but below-average vegetation conditions stretch across parts of Montana, Wyoming, Colorado, northwestern Nebraska, and Minnesota as well. The plains of Canada's Saskatchewan and Manitoba provinces were suffering drought, too. A few small pockets of green in the image reveal where vegetation greenness values observed by MODIS were higher than average: the mountains of north-central Colorado, southeastern Nebraska, and the Red River Valley. The Red River Valley experienced widespread snowfall and heavy rains in the spring of 2006, leading to significant flooding. [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=13500 ] The early-season moisture may have helped the vegetation in the area withstand the hot summer. According to the August 29, 2006, update from the U.S. Drought Monitor, [ http://www.drought.unl.edu/dm/monitor.html ] most of the Northern Great Plains, as well as much of Oklahoma and Texas, was still in the midst of drought, with many areas falling into the highest category: exceptional drought. NASA image created by Jesse Allen, Earth Observatory, using data provided by Inbal Reshef as part of the Global Agricultural Monitoring Project [ http://www.pecad.fas.usda.gov/glam.cfm ] between NASA, USDA's Foreign Agricultural Service (FAS), and the University of Maryland.
Snow Across the Western Unit …
Title Snow Across the Western United States
Description The Sunday after Thanksgiving is traditionally one of the busiest travel days of the year in the United States as people return home from the four-day weekend. Sunday, November 28, 2004, was no exception, but this year, Mother Nature snarled traffic across a large swath of the west with an intense snow storm. The storm dumped up to 24 inches (0.6 meters) of snow on the mountains of southern Utah, and blanketed the surrounding states. The Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Terra [ http://terra.nasa.gov/ ] satellite captured this image the following day, on November 29, after the clouds moved out. The storm's path is clearly visible in this image: a track of white extends from southeastern Oregon and the Sierra Nevada Mountains in California to Colorado and New Mexico in the east. The National Weather Service reports that the storm moved east across the Plains States of Nebraska, Kansas, Oklahoma, Texas, Missouri, and Iowa on November 29 and November 30. The snow highlights some interesting features of the Western United States that might not otherwise be obvious in satellite imagery. Sandwiched between the straight diagonal line of the Sierra Nevada Mountains in the west (the straight edge of the snow) and the Rocky Mountains in Central Utah in the east is the Great Basin Desert. This high desert basin covers a heart-shaped region of southern Oregon, Nevada, Utah, and southern Idaho and is clearly outlined in snow. Hemmed between two large mountain ranges that trap moisture from the east and the west, it is the United States' largest desert. It receives on average 7-12 inches of precipitation every year. The water that does fall in the region drains to interior, closed basins instead of the ocean, giving the region its name. The Great Basin Desert is made up of a series of mostly north-south running mountain ranges and valleys that give the land a wrinkled, wash-board appearance, particularly in Nevada. The snow highlights elevation change elsewhere in the image. The imposing Rocky Mountains appear slightly darker than the valleys around them, and the peaks and high plateaus in the south are covered in snow while the pink desert lowlands remain bare. On the right edge of the image, the flat plains of eastern Wyoming and Colorado are an even, uninterrupted white. NASA image created by Jesse Allen, Earth Observatory, using data obtained from the Goddard Land Processes DAAC
Snow Across the Western Unit …
Title Snow Across the Western United States
Description As much as 18 inches of snow coated the Sierra Nevada Mountains on November 27 and 28, 2004, stranding thousands of holiday travelers. In this Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]), captured by NASA's Aqua [ http://aqua.nasa.gov/ ] satellite on November 28, 2004, the mountains seem to have acted as a barrier to the storm, which moved in from the northwest, according to the National Weather Service. The east side of the mountains and the Great Desert Basin are white with snow, while the west side remains green. After this image was acquired, the storm moved east, blanketing Utah, Colorado, Wyoming and Nebraska with heavy snow. NASA image courtesy Liam Gumley, University of Wisconsin-Madison from data acquired by direct broadcast at Oregon State University
Autumn Twisters Rip Through …
nasa, nasaimageofthedaygalle …
On October 9, 2001, the Stor …
Tornadic_Storm
mediatype IMAGE
mediatype image
date 2001-10-09
creator NASA -- Image courtesy www.cira.colostate.edu/ramm/picoday/011010/011010.html CIRA/NOAA
identifier Tornadic_Storm
Platte River, Nebraska: Imag …
nasa, nasaimageofthedaygalle …
Shallow channels of water we …
platte_Elidar2002088
mediatype IMAGE
mediatype image
date 2002-03-29
creator NASA -- Image courtesy Paul Kinzel of the United States Geological Survey and Wayne Wright of NASA's Wallops Flight Facility
identifier platte_Elidar2002088
Drought on the Great Plains: …
nasa, nasaimageofthedaygalle …
Across the Great Plains of t …
nplainsndvia_tmo_2006209
mediatype IMAGE
mediatype image
date 2006-08-12
creator NASA -- NASA image created by Jesse Allen, Earth Observatory, using data provided by Inbal Reshef as part of the www.pecad.fas.usda.gov/glam.cfm Global Agricultural Monitoring Project between NASA, USDA's Foreign Agricultural Service (FAS), and the University of Maryland.
identifier nplainsndvia_tmo_2006209
Snowstorm Blankets Midwester …
nasa, nasaimageofthedaygalle …
An early blast of wintry wea …
Midwest_US_snowstorm
mediatype IMAGE
mediatype image
date 2001-12-01
creator NASA -- Image courtesy Jacques Descloitres, modis-land.gsfc.nasa.gov/ MODIS Land Rapid Response Team at NASA GSFC
identifier Midwest_US_snowstorm
First GOES-11 Image : Image …
nasa, nasaimageofthedaygalle …
On 17 May 2000, the first vi …
firstgoes11
mediatype IMAGE
mediatype image
date 2000-05-17
creator NASA -- Image courtesy NASA GSFC, data from NOAA-GOES
identifier firstgoes11
Major Snowstorm in the U.S. …
nasa, nasaimageofthedaygalle …
The Sunday after Thanksgivin …
terra_uswest_29nov04
mediatype IMAGE
mediatype image
date 2004-11-29
creator NASA -- NASA image created by Jesse Allen, Earth Observatory, using data obtained from the Goddard Land Processes DAAC.
identifier terra_uswest_29nov04
Blizzards in the Western Uni …
nasa, nasaimageofthedaygalle …
* eoimages.gsfc.nasa.gov/ima …
terra_uswest_05jan04
mediatype IMAGE
mediatype image
date 2003-12-24
creator NASA -- Image courtesy Jesse Allen, based on data from the rapidfire.sci.gsfc.nasa.gov MODIS Rapid Response Team at NASA GSFC
identifier terra_uswest_05jan04
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