|
|
Titan: Larger and Larger Lak
…
| Description |
Titan: Larger and Larger Lakes |
| Full Description |
This radar image, obtained by Cassini's radar instrument during a near-polar flyby on Feb. 22, 2007, shows a big island smack in the middle of one of the larger lakes imaged on Saturn's moon Titan. This image offers further evidence that the largest lakes are at the highest latitudes. The island is about 90 kilometers (62 miles) by 150 kilometers (93 miles) across, about the size of Kodiak Island in Alaska or the Big Island of Hawaii. The island may actually be a peninsula connected by a bridge to a larger stretch of land. As you go farther down the image, several very small lakes begin to appear, which may be controlled by local topography. This image was taken in synthetic aperture mode at 700 meter (2,300 feet) resolution. North is toward the left. The image is centered at about 79 north degrees north and 310 degrees west. The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency and the Italian Space Agency. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the mission for NASA's Science Mission Directorate, Washington, D.C. The Cassini orbiter was designed, developed and assembled at JPL. The radar instrument was built by JPL and the Italian Space Agency, working with team members from the United States and several European countries. For more information about the Cassini-Huygens mission visit http://saturn.jpl.nasa.gov/home/index.cfm. Credit: NASA/JPL |
| Date |
February 27, 2007 |
|
Alaskan Glacier Quakes
| title |
Alaskan Glacier Quakes |
| date |
08.02.2003 |
| description |
NASA and United States Geological Survey (USGS) scientists found that retreating glaciers in southern Alaska may be opening the way for future earthquakes. The study examined the likelihood of increased earthquake activity in southern Alaska as a result of rapidly melting glaciers. As glaciers melt they lighten the load on the Earth's crust. Tectonic plates, that are mobile pieces of the Earth's crust, can then move more freely, which increases the probability of earthquakes occurring in this region. |
|
Alaska Fire Particles Traver
…
| Title |
Alaska Fire Particles Traverse Parts of Canada and the United States (June 29, 2004, through July 19, 2004) |
| Abstract |
Aerosols created by fires in Alaska and Canada waft over the United States. These images from the TOMS instrument show levels of the absorbing aerosol particles (airborne microscopic dust/smoke). More information on the TOMS instrument can be viewed at (http://toms.gsfc.nasa.gov/index.html). |
| Completed |
2004-08-19 |
|
Alaska Fire Particles Traver
…
| Title |
Alaska Fire Particles Traverse Parts of Canada and the United States (June 29, 2004, through July 19, 2004) |
| Abstract |
Aerosols created by fires in Alaska and Canada waft over the United States. These images from the TOMS instrument show levels of the absorbing aerosol particles (airborne microscopic dust/smoke). More information on the TOMS instrument can be viewed at (http://toms.gsfc.nasa.gov/index.html). |
| Completed |
2004-08-19 |
|
Alaska Fire Particles Traver
…
| Title |
Alaska Fire Particles Traverse Parts of Canada and the United States (June 29, 2004, through July 19, 2004) |
| Abstract |
Aerosols created by fires in Alaska and Canada waft over the United States. These images from the TOMS instrument show levels of the absorbing aerosol particles (airborne microscopic dust/smoke). More information on the TOMS instrument can be viewed at (http://toms.gsfc.nasa.gov/index.html). |
| Completed |
2004-08-19 |
|
Alaska Fire Particles Traver
…
| Title |
Alaska Fire Particles Traverse Parts of Canada and the United States (June 29, 2004, through July 19, 2004) |
| Abstract |
Aerosols created by fires in Alaska and Canada waft over the United States. These images from the TOMS instrument show levels of the absorbing aerosol particles (airborne microscopic dust/smoke). More information on the TOMS instrument can be viewed at (http://toms.gsfc.nasa.gov/index.html). |
| Completed |
2004-08-19 |
|
Alaska Fire Particles Traver
…
| Title |
Alaska Fire Particles Traverse Parts of Canada and the United States (June 29, 2004, through July 19, 2004) |
| Abstract |
Aerosols created by fires in Alaska and Canada waft over the United States. These images from the TOMS instrument show levels of the absorbing aerosol particles (airborne microscopic dust/smoke). More information on the TOMS instrument can be viewed at (http://toms.gsfc.nasa.gov/index.html). |
| Completed |
2004-08-19 |
|
Alaska Fire Particles Traver
…
| Title |
Alaska Fire Particles Traverse Parts of Canada and the United States (June 29, 2004, through July 19, 2004) |
| Abstract |
Aerosols created by fires in Alaska and Canada waft over the United States. These images from the TOMS instrument show levels of the absorbing aerosol particles (airborne microscopic dust/smoke). More information on the TOMS instrument can be viewed at (http://toms.gsfc.nasa.gov/index.html). |
| Completed |
2004-08-19 |
|
Alaska Fire Particles Traver
…
| Title |
Alaska Fire Particles Traverse Parts of Canada and the United States (June 29, 2004, through July 19, 2004) |
| Abstract |
Aerosols created by fires in Alaska and Canada waft over the United States. These images from the TOMS instrument show levels of the absorbing aerosol particles (airborne microscopic dust/smoke). More information on the TOMS instrument can be viewed at (http://toms.gsfc.nasa.gov/index.html). |
| Completed |
2004-08-19 |
|
Alaska Fire Particles Traver
…
| Title |
Alaska Fire Particles Traverse Parts of Canada and the United States (June 29, 2004, through July 19, 2004) |
| Abstract |
Aerosols created by fires in Alaska and Canada waft over the United States. These images from the TOMS instrument show levels of the absorbing aerosol particles (airborne microscopic dust/smoke). More information on the TOMS instrument can be viewed at (http://toms.gsfc.nasa.gov/index.html). |
| Completed |
2004-08-19 |
|
Alaska Fire Particles Traver
…
| Title |
Alaska Fire Particles Traverse Parts of Canada and the United States (June 29, 2004, through July 19, 2004) |
| Abstract |
Aerosols created by fires in Alaska and Canada waft over the United States. These images from the TOMS instrument show levels of the absorbing aerosol particles (airborne microscopic dust/smoke). More information on the TOMS instrument can be viewed at (http://toms.gsfc.nasa.gov/index.html). |
| Completed |
2004-08-19 |
|
Alaska Fire Particles Traver
…
| Title |
Alaska Fire Particles Traverse Parts of Canada and the United States (June 29, 2004, through July 19, 2004) |
| Abstract |
Aerosols created by fires in Alaska and Canada waft over the United States. These images from the TOMS instrument show levels of the absorbing aerosol particles (airborne microscopic dust/smoke). More information on the TOMS instrument can be viewed at (http://toms.gsfc.nasa.gov/index.html). |
| Completed |
2004-08-19 |
|
Alaska Fire Particles Traver
…
| Title |
Alaska Fire Particles Traverse Parts of Canada and the United States (June 29, 2004, through July 19, 2004) |
| Abstract |
Aerosols created by fires in Alaska and Canada waft over the United States. These images from the TOMS instrument show levels of the absorbing aerosol particles (airborne microscopic dust/smoke). More information on the TOMS instrument can be viewed at (http://toms.gsfc.nasa.gov/index.html). |
| Completed |
2004-08-19 |
|
Alaska Fire Particles Traver
…
| Title |
Alaska Fire Particles Traverse Parts of Canada and the United States (June 29, 2004, through July 19, 2004) |
| Abstract |
Aerosols created by fires in Alaska and Canada waft over the United States. These images from the TOMS instrument show levels of the absorbing aerosol particles (airborne microscopic dust/smoke). More information on the TOMS instrument can be viewed at (http://toms.gsfc.nasa.gov/index.html). |
| Completed |
2004-08-19 |
|
Alaska Fire Particles Traver
…
| Title |
Alaska Fire Particles Traverse Parts of Canada and the United States (June 29, 2004, through July 19, 2004) |
| Abstract |
Aerosols created by fires in Alaska and Canada waft over the United States. These images from the TOMS instrument show levels of the absorbing aerosol particles (airborne microscopic dust/smoke). More information on the TOMS instrument can be viewed at (http://toms.gsfc.nasa.gov/index.html). |
| Completed |
2004-08-19 |
|
Alaska Fire Particles Traver
…
| Title |
Alaska Fire Particles Traverse Parts of Canada and the United States (June 29, 2004, through July 19, 2004) |
| Abstract |
Aerosols created by fires in Alaska and Canada waft over the United States. These images from the TOMS instrument show levels of the absorbing aerosol particles (airborne microscopic dust/smoke). More information on the TOMS instrument can be viewed at (http://toms.gsfc.nasa.gov/index.html). |
| Completed |
2004-08-19 |
|
Alaska Fire Particles Traver
…
| Title |
Alaska Fire Particles Traverse Parts of Canada and the United States (June 29, 2004, through July 19, 2004) |
| Abstract |
Aerosols created by fires in Alaska and Canada waft over the United States. These images from the TOMS instrument show levels of the absorbing aerosol particles (airborne microscopic dust/smoke). More information on the TOMS instrument can be viewed at (http://toms.gsfc.nasa.gov/index.html). |
| Completed |
2004-08-19 |
|
Alaska Fire Particles Traver
…
| Title |
Alaska Fire Particles Traverse Parts of Canada and the United States (June 29, 2004, through July 19, 2004) |
| Abstract |
Aerosols created by fires in Alaska and Canada waft over the United States. These images from the TOMS instrument show levels of the absorbing aerosol particles (airborne microscopic dust/smoke). More information on the TOMS instrument can be viewed at (http://toms.gsfc.nasa.gov/index.html). |
| Completed |
2004-08-19 |
|
Alaska Fire Particles Traver
…
| Title |
Alaska Fire Particles Traverse Parts of Canada and the United States (June 29, 2004, through July 19, 2004) |
| Abstract |
Aerosols created by fires in Alaska and Canada waft over the United States. These images from the TOMS instrument show levels of the absorbing aerosol particles (airborne microscopic dust/smoke). More information on the TOMS instrument can be viewed at (http://toms.gsfc.nasa.gov/index.html). |
| Completed |
2004-08-19 |
|
Alaska Fire Particles Traver
…
| Title |
Alaska Fire Particles Traverse Parts of Canada and the United States (June 29, 2004, through July 19, 2004) |
| Abstract |
Aerosols created by fires in Alaska and Canada waft over the United States. These images from the TOMS instrument show levels of the absorbing aerosol particles (airborne microscopic dust/smoke). More information on the TOMS instrument can be viewed at (http://toms.gsfc.nasa.gov/index.html). |
| Completed |
2004-08-19 |
|
Alaska Fire Particles Traver
…
| Title |
Alaska Fire Particles Traverse Parts of Canada and the United States (June 29, 2004, through July 19, 2004) |
| Abstract |
Aerosols created by fires in Alaska and Canada waft over the United States. These images from the TOMS instrument show levels of the absorbing aerosol particles (airborne microscopic dust/smoke). More information on the TOMS instrument can be viewed at (http://toms.gsfc.nasa.gov/index.html). |
| Completed |
2004-08-19 |
|
Alaska Fire Particles Traver
…
| Title |
Alaska Fire Particles Traverse Parts of Canada and the United States (June 29, 2004, through July 19, 2004) |
| Abstract |
Aerosols created by fires in Alaska and Canada waft over the United States. These images from the TOMS instrument show levels of the absorbing aerosol particles (airborne microscopic dust/smoke). More information on the TOMS instrument can be viewed at (http://toms.gsfc.nasa.gov/index.html). |
| Completed |
2004-08-19 |
|
Alaska Fire Particles Traver
…
| Title |
Alaska Fire Particles Traverse Parts of Canada and the United States (June 29, 2004, through July 19, 2004) |
| Abstract |
Aerosols created by fires in Alaska and Canada waft over the United States. These images from the TOMS instrument show levels of the absorbing aerosol particles (airborne microscopic dust/smoke). More information on the TOMS instrument can be viewed at (http://toms.gsfc.nasa.gov/index.html). |
| Completed |
2004-08-19 |
|
Alaska Fire Particles Traver
…
| Title |
Alaska Fire Particles Traverse Parts of Canada and the United States (June 29, 2004, through July 19, 2004) |
| Abstract |
Aerosols created by fires in Alaska and Canada waft over the United States. These images from the TOMS instrument show levels of the absorbing aerosol particles (airborne microscopic dust/smoke). More information on the TOMS instrument can be viewed at (http://toms.gsfc.nasa.gov/index.html). |
| Completed |
2004-08-19 |
|
Glaciers Spur Alaskan Earthq
…
| Title |
Glaciers Spur Alaskan Earthquakes |
| Abstract |
In a new study, NASA and United States Geological Survey (USGS) scientists found that retreating glaciers in southern Alaska may be opening the way for future earthquakes. The study examined the likelihood of increased earthquake activity in southern Alaska as a result of rapidly melting glaciers. As glaciers melt they lighten the load on the Earth's crust. Tectonic plates, that are mobile pieces of the Earth's crust, can then move more freely, which increases the probability of earthquakes occurring in this region. |
| Completed |
2004-07-30 |
|
Glaciers Spur Alaskan Earthq
…
| Title |
Glaciers Spur Alaskan Earthquakes |
| Abstract |
In a new study, NASA and United States Geological Survey (USGS) scientists found that retreating glaciers in southern Alaska may be opening the way for future earthquakes. The study examined the likelihood of increased earthquake activity in southern Alaska as a result of rapidly melting glaciers. As glaciers melt they lighten the load on the Earth's crust. Tectonic plates, that are mobile pieces of the Earth's crust, can then move more freely, which increases the probability of earthquakes occurring in this region. |
| Completed |
2004-07-30 |
|
Glaciers Spur Alaskan Earthq
…
| Title |
Glaciers Spur Alaskan Earthquakes |
| Abstract |
In a new study, NASA and United States Geological Survey (USGS) scientists found that retreating glaciers in southern Alaska may be opening the way for future earthquakes. The study examined the likelihood of increased earthquake activity in southern Alaska as a result of rapidly melting glaciers. As glaciers melt they lighten the load on the Earth's crust. Tectonic plates, that are mobile pieces of the Earth's crust, can then move more freely, which increases the probability of earthquakes occurring in this region. |
| Completed |
2004-07-30 |
|
Glaciers Spur Alaskan Earthq
…
| Title |
Glaciers Spur Alaskan Earthquakes |
| Abstract |
In a new study, NASA and United States Geological Survey (USGS) scientists found that retreating glaciers in southern Alaska may be opening the way for future earthquakes. The study examined the likelihood of increased earthquake activity in southern Alaska as a result of rapidly melting glaciers. As glaciers melt they lighten the load on the Earth's crust. Tectonic plates, that are mobile pieces of the Earth's crust, can then move more freely, which increases the probability of earthquakes occurring in this region. |
| Completed |
2004-07-30 |
|
Glaciers Spur Alaskan Earthq
…
| Title |
Glaciers Spur Alaskan Earthquakes |
| Abstract |
In a new study, NASA and United States Geological Survey (USGS) scientists found that retreating glaciers in southern Alaska may be opening the way for future earthquakes. The study examined the likelihood of increased earthquake activity in southern Alaska as a result of rapidly melting glaciers. As glaciers melt they lighten the load on the Earth's crust. Tectonic plates, that are mobile pieces of the Earth's crust, can then move more freely, which increases the probability of earthquakes occurring in this region. |
| Completed |
2004-07-30 |
|
Glaciers Spur Alaskan Earthq
…
| Title |
Glaciers Spur Alaskan Earthquakes |
| Abstract |
In a new study, NASA and United States Geological Survey (USGS) scientists found that retreating glaciers in southern Alaska may be opening the way for future earthquakes. The study examined the likelihood of increased earthquake activity in southern Alaska as a result of rapidly melting glaciers. As glaciers melt they lighten the load on the Earth's crust. Tectonic plates, that are mobile pieces of the Earth's crust, can then move more freely, which increases the probability of earthquakes occurring in this region. |
| Completed |
2004-07-30 |
|
Glaciers Spur Alaskan Earthq
…
| Title |
Glaciers Spur Alaskan Earthquakes |
| Abstract |
In a new study, NASA and United States Geological Survey (USGS) scientists found that retreating glaciers in southern Alaska may be opening the way for future earthquakes. The study examined the likelihood of increased earthquake activity in southern Alaska as a result of rapidly melting glaciers. As glaciers melt they lighten the load on the Earth's crust. Tectonic plates, that are mobile pieces of the Earth's crust, can then move more freely, which increases the probability of earthquakes occurring in this region. |
| Completed |
2004-07-30 |
|
Glaciers Spur Alaskan Earthq
…
| Title |
Glaciers Spur Alaskan Earthquakes |
| Abstract |
In a new study, NASA and United States Geological Survey (USGS) scientists found that retreating glaciers in southern Alaska may be opening the way for future earthquakes. The study examined the likelihood of increased earthquake activity in southern Alaska as a result of rapidly melting glaciers. As glaciers melt they lighten the load on the Earth's crust. Tectonic plates, that are mobile pieces of the Earth's crust, can then move more freely, which increases the probability of earthquakes occurring in this region. |
| Completed |
2004-07-30 |
|
Glaciers Spur Alaskan Earthq
…
| Title |
Glaciers Spur Alaskan Earthquakes |
| Abstract |
In a new study, NASA and United States Geological Survey (USGS) scientists found that retreating glaciers in southern Alaska may be opening the way for future earthquakes. The study examined the likelihood of increased earthquake activity in southern Alaska as a result of rapidly melting glaciers. As glaciers melt they lighten the load on the Earth's crust. Tectonic plates, that are mobile pieces of the Earth's crust, can then move more freely, which increases the probability of earthquakes occurring in this region. |
| Completed |
2004-07-30 |
|
Glaciers Spur Alaskan Earthq
…
| Title |
Glaciers Spur Alaskan Earthquakes |
| Abstract |
In a new study, NASA and United States Geological Survey (USGS) scientists found that retreating glaciers in southern Alaska may be opening the way for future earthquakes. The study examined the likelihood of increased earthquake activity in southern Alaska as a result of rapidly melting glaciers. As glaciers melt they lighten the load on the Earth's crust. Tectonic plates, that are mobile pieces of the Earth's crust, can then move more freely, which increases the probability of earthquakes occurring in this region. |
| Completed |
2004-07-30 |
|
Glaciers Spur Alaskan Earthq
…
| Title |
Glaciers Spur Alaskan Earthquakes |
| Abstract |
In a new study, NASA and United States Geological Survey (USGS) scientists found that retreating glaciers in southern Alaska may be opening the way for future earthquakes. The study examined the likelihood of increased earthquake activity in southern Alaska as a result of rapidly melting glaciers. As glaciers melt they lighten the load on the Earth's crust. Tectonic plates, that are mobile pieces of the Earth's crust, can then move more freely, which increases the probability of earthquakes occurring in this region. |
| Completed |
2004-07-30 |
|
Glaciers Spur Alaskan Earthq
…
| Title |
Glaciers Spur Alaskan Earthquakes |
| Abstract |
In a new study, NASA and United States Geological Survey (USGS) scientists found that retreating glaciers in southern Alaska may be opening the way for future earthquakes. The study examined the likelihood of increased earthquake activity in southern Alaska as a result of rapidly melting glaciers. As glaciers melt they lighten the load on the Earth's crust. Tectonic plates, that are mobile pieces of the Earth's crust, can then move more freely, which increases the probability of earthquakes occurring in this region. |
| Completed |
2004-07-30 |
|
Glaciers Spur Alaskan Earthq
…
| Title |
Glaciers Spur Alaskan Earthquakes |
| Abstract |
In a new study, NASA and United States Geological Survey (USGS) scientists found that retreating glaciers in southern Alaska may be opening the way for future earthquakes. The study examined the likelihood of increased earthquake activity in southern Alaska as a result of rapidly melting glaciers. As glaciers melt they lighten the load on the Earth's crust. Tectonic plates, that are mobile pieces of the Earth's crust, can then move more freely, which increases the probability of earthquakes occurring in this region. |
| Completed |
2004-07-30 |
|
Glaciers Spur Alaskan Earthq
…
| Title |
Glaciers Spur Alaskan Earthquakes |
| Abstract |
In a new study, NASA and United States Geological Survey (USGS) scientists found that retreating glaciers in southern Alaska may be opening the way for future earthquakes. The study examined the likelihood of increased earthquake activity in southern Alaska as a result of rapidly melting glaciers. As glaciers melt they lighten the load on the Earth's crust. Tectonic plates, that are mobile pieces of the Earth's crust, can then move more freely, which increases the probability of earthquakes occurring in this region. |
| Completed |
2004-07-30 |
|
Glaciers Spur Alaskan Earthq
…
| Title |
Glaciers Spur Alaskan Earthquakes |
| Abstract |
In a new study, NASA and United States Geological Survey (USGS) scientists found that retreating glaciers in southern Alaska may be opening the way for future earthquakes. The study examined the likelihood of increased earthquake activity in southern Alaska as a result of rapidly melting glaciers. As glaciers melt they lighten the load on the Earth's crust. Tectonic plates, that are mobile pieces of the Earth's crust, can then move more freely, which increases the probability of earthquakes occurring in this region. |
| Completed |
2004-07-30 |
|
STS-89 Mission Insignia
| Name of Image |
STS-89 Mission Insignia |
| Date of Image |
1998-01-08 |
| Full Description |
In the STS-89 crew insignia, the link between the United States and Russia is symbolically represented by the Space Shuttle Endeavour and Russia's Mir Space Station orbiting above the Bering Strait between Siberia and Alaska. The success of the joint United States-Russian missions is depicted by the Space Shuttle and Mir colored by the rising sun in the background. A shadowed representation of the International Space Station (ISS) rising with the sun represents the future program for which the Shuttle-Mir missions are prototypes. The inside rim of the insignia describes the outline of the number eight representing STS-89 as the eighth Shuttle/Mir docking mission. The nine stars represent the nine joint missions to be flown of the program and when combined with the number eight in the rim, reflect the mission number. The nine stars also symbolize the children of the crew members who will be the future beneficiaries of the joint development work of the space programs of the two countries. Along the rim are the crew members' names with David A. Wolf's name on the left and Andrew S. W. Thomas' name on the right, the returning and upgoing cosmonaut guest researcher crew members. In between and at the bottom is the name of Salizan S. Sharipov, payload specialist representing Russian Space Agency (RSA), in Cyrillic alphabet. The other crew members are Terrence W. Wilcutt, commander, Joe F. Edwards, Jr., pilot, and mission specialists Michael P. Anderson, Bonnie J. Dunbar, and James F. Reilly. The red, white and blue of the rim reflect the colors of the American and Russian flags which are also represented in the rim on either side of the joined spacecraft. |
|
Fires In Alaska and Northern
…
| Title |
Fires In Alaska and Northern Canada |
| Description |
Thick smoke covered much of central Alaska on June 30, 2004, when the Sea-viewing Wide Field-of-view Sensor (SeaWiFS [ http://seawifs.gsfc.nasa.gov/SEAWIFS.html ]) on the Orbview-2 satellite captured this image. The tan smoke is being swept west over the Bering Strait and into Russia. The United States Environmental Protection Agency issued an air quality alert for over 80,000 people in Alaska's interior, north of the Alaskan range. In the center of the affected region is the city of Fairbanks, where the air quality has received a "hazardous" rating—the most serious level on the EPA's six point air quality index. At such levels, visibilities are one-half mile or less, and residents are urged to remain indoors. For more information, please visit the EPA's AIRNow [ http://www.epa.gov/airnow/topstory.html ] site. Image courtesy the SeaWiFS Project, NASA/Goddard Space Flight Center, and ORBIMAGE |
|
Fires In Alaska and Northern
…
| Title |
Fires In Alaska and Northern Canada |
| Description |
Numerous lightning-ignited fires have been burning in east-central Alaska since mid-June 2004. The carbon monoxide generated by the fires is blowing south over western Canada and the northwestern United States, as shown by this image, which is based on a composite of data collected over a 10 day period, from June 14 to June 24, 2004, by the Measurements of Pollution in the Troposphere (MOPITT) instrument aboard NASA's Terra [ http://terra.nasa.gov/ ] satellite. The colors represent the mixing ratio of carbon monoxide in parts per billion by volume (ppbv) at an altitude of roughly 3 km (700 mbar). Red and yellow indicate high levels of pollution. NASA image created from data provided by the NCAR MOPITT Team |
|
Fires In Alaska and Northern
…
| Title |
Fires In Alaska and Northern Canada |
| Description |
This colorful image shows the fires in east-central Alaska and west-central Yukon Territory, Canada, on June 30, 2004. The area shown is located to the south and east of the Yukon-Charley Rivers National Preserve. To make the image, scientists add color to electromagnetic energy that Landsat is able to detect, but that our eyes cannot normally see. So, for example, infrared energy (heat) appears bright pink around the perimeters of actively burning fires, while burned areas appear a deeper pink. Bare ground or low vegetation appears orange, while vegetation appears in shades of green. The blue river running diagonally across the scene is the Yukon. This false-color composite uses data from shortwave infrared, infrared, and green wavelengths (ETM+ bands 7, 4, and 2). The image has been gap-filled to correct for the failure of the Scan Line Corrector (SLC) on Landsat's Enhanced Thematic Mapper Plus (ETM+) instrument. Image by Jesse Allen, based on data from the United States Geological Survey EROS Data Center |
|
Smoke from Alaska Fires
| Title |
Smoke from Alaska Fires |
| Description |
This large-scale image was made by stitching together four images collected by the Moderate Resolution Imaging Spectroradiometer (MODIS) instruments aboard both the Terra and Aqua satellites. The mosaic shows the extent to which smoke from fires burning in Alaska has spread all the way across Canada and into the Great Lakes region of the United States. The high-resolution version available here is 1 kilometer per pixel. NASA image by Jesse Allen, Earth Observatory, using data courtesy MODIS Rapid Response |
|
Smoke from Alaska Fires
| Title |
Smoke from Alaska Fires |
| Description |
This large-scale image was made by stitching together four images collected by the Moderate Resolution Imaging Spectroradiometer (MODIS) instruments aboard both the Terra and Aqua satellites. The mosaic shows the extent to which smoke from fires burning in Alaska has spread all the way across Canada and into the Great Lakes region of the United States. The high-resolution version available here is 1 kilometer per pixel. NASA image by Jesse Allen, Earth Observatory, using data courtesy MODIS Rapid Response |
|
Smoke from Alaskan Fires ove
…
| Title |
Smoke from Alaskan Fires over Louisiana |
| Description |
This image of the southern United States from NASA's Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA's Terra satellite is a picture-perfect example of what meteorologists mean when they describe the atmosphere as a fluid. In the center of the image, an airborne river of smoke from fires raging across Alaska is flowing down the Mississippi River corridor and spreading out across the shoreline of the Gulf of Mexico, at the bottom of the scene. Thick smoke hangs over Louisiana (bottom center) as well as Texas, to the west, and Arkansas to the north. MODIS captured the image on July 19, 2004. NASA image courtesy Jacques Descloitres, MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at GSFC |
|
Fires in Southeast Asia
| Title |
Fires in Southeast Asia |
| Description |
Vehicles and power plants are not the only sources of air pollution and greenhouses gases: fires contribute, too. In the Northern Hemisphere spring, which is the end of dry season across much of Southeast Asia, thousands of fires burn each year as people clear cropland and pasture in anticipation of the upcoming wet (growing) season. Intentional fires also escape people's control and burn into adjacent forest. The smoke from these fires crosses the Pacific Ocean, affecting climate far away. This dramatic photo-like image of fires and smoke in Southeast Asia was captured on April 2, 2007, by the Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov ] on NASA's Aqua [ http://aqua.nasa.gov ] satellite. MODIS detected hundreds, possibly thousands of fires (marked in red), burning in Thailand, Laos, Vietnam, and China. Thick smoke hides nearly all of Laos, where the highest concentration of fires is located. In southern China and northern Vietnam, the smoke has sunk into the valleys that crisscross the mountainous terrain, only the highest ridgelines, which appear dark green, emerge from the blanket of smoke. The smoke sails above a bank of clouds at upper right as a dingy, yellowish haze. Fires have been burning in the region for more than month, as shown by the high carbon monoxide levels observed by NASA's MOPITT sensor during March 2007. [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=14191 ] In addition to carbon dioxide and other greenhouse gases, fires produce tiny particles of incompletely burned, or charred, carbon. According to research published in mid-March 2007 in the Journal of Geophysical Research, significant amounts of this black carbon travel across the Pacific Ocean to North America at altitudes above 2 kilometers. In spring 2004, between 25-35 gigatons (roughly 55 to 77 million pounds) of black carbon crossed the Pacific and entered skies over western North America between March 26 and April 25, nearly 75 percent of it came from Asia. (Smoke and other pollution have no respect for borders, for example, scientists have also documented smoke pollution from fires in Alaska and Canada crossing the Atlantic [ http://earthobservatory.nasa.gov/Study/ContributionPollution/ ], and entering skies over Europe.) Black carbon influences the climate. Like any dark-colored material, it absorbs incoming sunlight, dimming and cooling the Earth's surface. But while the surface cools, the atmosphere where the black carbon is located heats up. Which effect is stronger? When scientists looked at the overall effect for an entire column of the atmosphere, black carbon's warming effects outweighed its cooling effects. They concluded that trans-Pacific transport of black carbon, such as the soot released from the fires shown in this image, may amplify greenhouse-gas warming over the western United States and the Pacific Ocean. The analysis was based on a variety of information, including weather models, observations collected from airplanes, and aerosol data from MODIS. 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/?FAS_China5 ] images of the region in additional resolutions and formats. NASA image courtesy the MODIS Rapid Response Team, [ http://rapidfire.sci.gsfc.nasa.gov ] Goddard Space Flight Center |
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Fireworks" on U.S. East Coas
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| Title |
Fireworks" on U.S. East Coast |
| Description |
A series of nighttime rocket launches from the Atlantic shore of Virginia July 2-20 will produce glowing clouds in space. Designed to study "space weather" ? the interaction of the solar wind with the Earth's magnetic field and atmosphere ? the experiments seek to improve our understanding of electrically charged atoms at the edge of space. The rockets will release a chemical that will form large glowing clouds in space. These milky-white clouds should be visible to the naked eye for several hundred miles from the launch site at Wallops Island, Va., encompassing the mid-Atlantic region and portions of the northeastern and southeastern United States. The clouds should be visible for 10 to 20 minutes to the southeast of the launch site at about 70 degrees elevation (approximately three-quarters of the way between the horizon and the point of the sky that appears to be directly above an observer). The chemical, trimethylaluminum, will be released in the ionosphere between 43 and 96 miles (69 to 154 kilometers) altitude. The harmless by-products will disperse across thousands of miles as they diffuse into the upper atmosphere. This photo of a trimethylaluminum cloud was taken over the Poker Flat Research Range, Alaska, following a similar release by NASA. Photo courtesy NASA |
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Still Waiting for El Nino: I
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nasa, nasaimageofthedaygalle
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The Pacific Ocean doesn't sh
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topex_20020614
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2002-06-14 |
| creator |
NASA -- Image courtesy NASA/JPL sealevel.jpl.nasa.gov/ Topex and Jason Team |
| identifier |
topex_20020614 |
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Magnitude 7.9 Earthquake Str
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nasa, nasaimageofthedaygalle
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An intense earthquake struck
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alaska_dem_2002307
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2002-11-03 |
| creator |
NASA -- Image courtesy mapping-ak.wr.usgs.gov/research.html USGS Alaska Science Center |
| identifier |
alaska_dem_2002307 |
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