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Images of Canada and United States of America from 2007
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Haze over the Great Lakes
| Title |
Haze over the Great Lakes |
| Description |
Haze collected over the Great Lakes region at the end of July 2007. The Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov/ ] flying on NASA's Terra [ http://terra.nasa.gov/ ] satellite captured this image on July 31. In this image, the haze appears as a blue-gray film, thickest over northern Michigan and Lake Superior. Haze also obscures the view of Lake Huron and Lake Erie. Although the exact source of the haze was uncertain, it could have resulted from fires in Canada [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=14405 ] or the United States. [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=14398 ] An August 1, 2007, posting on the U.S. Air Quality [ http://alg.umbc.edu/usaq/ ] (Smog Blog) at the University of Maryland, Baltimore County, traced a trajectory of smoke from fires in Oregon, Idaho, and Montana passing over the Great Lakes region and continuing southeast toward Baltimore. NASA image courtesy the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC. The Rapid Response Team provides daily images [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?USA3/ ] of this region. |
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Fall Colors around Lake Supe
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| Title |
Fall Colors around Lake Superior |
| Description |
The calendar may have set September 23 as the first day of autumn in 2007, but the forests that line the eastern shore of Lake Superior had already started to mark the turning of the season. By September 23, when the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Terra [ http://terra.nasa.gov/ ] satellite captured this photo-like image, the forests of northern Michigan and southern Ontario flamed orange as the first trees of the season—maples—began to display their brilliant red and orange fall colors. Veins of green run through the sea of orange where the deciduous forest gives way to deep green pine trees. The most vivid color is concentrated in Canada's province of Ontario. Located farther south, Michigan's trees show only a hint of color. The St. Mary's River seems to be the dividing line between the brightest colors and the as-yet-unchanged forest. The river is also the border between the United States and Canada, as well as the only waterway linking Lake Superior to the rest of the Great Lakes. Orange and green forest gives way to gray along the banks of the river where the cities of Sault St. Marie, Ontario, and Sault St. Marie, Michigan, are located. Separated into two cities by the split between Canada and the United States after the Revolutionary War, the city was the first permanent European settlement in either Ontario or Michigan. A faint tan line spanning the river is the bridge that links the two cities. The pale green grid south of Sault St. Marie, Michigan, reveals patterns of land use, either from agriculture or forestry. The large image provides an unusually cloud-free view of all of the Great Lakes. Similar spots of color stretch across southern Canada and parts of Michigan, Wisconsin, and Minnesota. The northern plains of the United States have started to turn yellow as grasses ripen, but the eastern forests in Pennsylvania and New York remain deep green. Red squares scattered throughout the large image mark the locations of fires. The large image is at MODIS' maximum resolution of 250 meters per pixel. The image is available in additional resolutions from the MODIS Rapid Response System. NASA image courtesy Jeff Schmaltz, MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC |
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Fires and Thick Smoke over S
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| Title |
Fires and Thick Smoke over South America |
| Description |
The skies over the heart of South America were thick with the smoke from thousands of fires on September 9, 2007. In this image from the Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov ] on NASA's Aqua [ http://aqua.nasa.gov ], challenging for scientists to say what the overall effect of smoke on clouds and rainfall is. NASA's Terra [ http://terra.nasa.gov ] and Aqua [ http://aqua.nasa.gov ] satellites each have a MODIS sensor capable of detecting fires and mapping the extent of smoke aerosols on a daily basis. Scientists from around the world are using these data to advance our understanding of how natural and human-caused fires are changing our planet. NASA image created by Jesse Allen, using data provided courtesy of the MODIS Rapid Response [ http://rapidfire.sci.gsfc.nasa.gov/ ] team., satellite, locations where the sensor detected actively burning fires are marked with red dots. The skies are flooded with smoke, which pools along the eastern foothills of the Andes Mountains for thousands of kilometers. (North-to-south this image covers 3,050 kilometers, if we laid it over a map of the central United States, it would spill over the borders into both Canada and the Gulf of Mexico for at least a hundred kilometers in both directions.) Although naturally occurring fires are not uncommon in the drier forests and grasslands of South America, this type of intense, continent-spanning fire activity is almost certainly a product of human activities. Some fires are intentional, set by people to clear forest, savannas, and grasslands for ranching or farming. Other fires occur accidentally from human activities. Landscapes that have been disturbed by logging, fragmentation, or previous accidental fire are more prone to catch fire accidentally. In these situations, planned fires (such as brush clearing fires on already cleared land) can easily get out of control and invade other areas, especially during drought years. The image spans a variety of ecological regions. The top of the scene, including Peru, northern Bolivia, and western Brazil is home to the southernmost portions of the Amazon Rainforest. These wetter forests give way to the south to drier forests and more open woodlands in southern Bolivia, northwestern Paraguay and northern Argentina east of the Andes, this area is called the Chaco. In Uruguay and southern Brazil, the natural vegetation is savannas and grasslands. Even in ecosystems where fires occur naturally (the Chaco, savannas, and grasslands), human activities may change the frequency and intensity of fires. The number and different kinds of plants and animals may change as a result. And in the Amazon, naturally occurring fire was historically very rare, and trees and other plants have no real adaptations to fire. Fires in the rainforest have the potential to completely transform the Southern Amazon forests into a savanna. Fires influence not only the land surface, but the atmosphere as well. Research suggests that the impacts of smoke on the tropical atmosphere vary from place to place, season to season, and year to year. Studies have shown smoke reducing cloudiness over the Amazon itself, but not over the nearby ocean and not every year. The net impact on rainfall is also uncertain. Smoke particles suppress cloud formation by providing an over-abundance of condensation sites for water vapor. The water vapor spreads out over these particles, and it takes the cloud droplets longer to get big enough to fall as rain. The flip side, however, is that the smaller, lighter cloud droplets can rise much higher into the atmosphere, which ultimately invigorates updrafts, intensifies thunderstorms, and produces large hail and heavy rain. The competing effects in different areas and weather conditions make it extremely |
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Fires in Eastern Canada
| Title |
Fires in Eastern Canada |
| Description |
North of the St. Lawrence River in eastern Canada, numerous forest fires were burning across north-central Quebec province on June 19, 2007, when the Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov ] on NASA's Aqua [ http://aqua.nasa.gov ] satellite passed overhead and captured this image. Places where MODIS detected actively burning fires are outlined in red. Thick smoke billows north in the scene, in previous days, the smoke spread across a wide region of the province, southward into the United States, and out over the Atlantic. Quebec is having a more-active-than normal fire season so far this summer. As of June 20, reports from the Canadian Interagency Forest Fire Centre showed that the number of fires in the province so far this summer exceeded the 20-year average by 175 fires, and the total area burned (273,153 hectares, or 674,973 acres) was more than 4.5 times the 20-year average. A total open fire ban was in place for campers and other outdoor tourists in forested areas north of the St. Lawrence, according to montrealgazette.com. [ http://www.canada.com/montrealgazette/news/story.html?id=1f92d080-b007-45f1-bc32-ac3ded808b68&k=45497 ] NASA image created by Jesse Allen, using data provided courtesy of the MODIS Rapid Response [ http://rapidfire.sci.gsfc.nasa.gov/ ] team. |
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Smoke from fires in Idaho an
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| Title |
Smoke from fires in Idaho and Montana |
| Description |
Some things are so large that the perspective from space is necessary to appreciate them. One of those things is the long-distance impact that pollutants like smoke or dust can have on air quality. On August 4, 2007, for example, fires raging in Montana and Idaho polluted the air over much of the United States. The Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) onboard NASA's Aqua [ http://aqua.nasa.gov/ ] satellite captured this image of the smoke and fires on the afternoon of August 4. The lower image is a mosaic of four separate flyovers (separated by faint diagonal lines), while the top image is a close-up view of the smoke and haze along the northeastern seaboard. Strong winds on August 4 created uncontrollable firestorms that forced the evacuation of at least two communities in Montana, reported the Missoulian. Fires in Montana and Idaho are marked with red dots in the lower image and are more clearly visible in the large image. In addition to fueling the flames, the winds blew dense plumes of smoke northeast. The thickest plumes rise from the fires in northwestern Montana. By the time the smoke reached eastern Montana, the plumes were no longer distinct. The air was clouded with a soupy, gray haze that curves north into Canada. High-level winds pushed the smoke south over the western Great Lakes, and into the central and southern United States. From the bank of clouds over Illinois to the Gulf of Mexico, the air was white-gray with haze. From the central United States, the plume of pollution snaked over the Mid-Atlantic States and the Chesapeake Bay to the Atlantic Ocean, where it turned north and flowed along the coast. Some additional haze may line the coast south of Cape Hatteras, but reflected sunlight has turned the ocean's surface into a mirror, effectively masking the presence of any haze. The top image provides a closer view of the haze over the Atlantic Ocean from the Delmarva Peninsula along the eastern shore of the Chesapeake Bay, to the Gulf of Maine, north of Cape Cod. By this point, smoke from the western wildfires is probably only one component of the haze. High temperatures and stagnant air also amplified the impact of urban pollution, creating Code Orange [ http://airnow.gov/index.cfm?action=static.aqi#unh ] air quality conditions, which are unhealthy for sensitive groups such as active children or adults or individuals with respiratory ailments. The jetstream—the fast-moving, high-level winds that steer weather systems—is defined by the stark boundary between the hazy air over the Mid-Atlantic and the clear air over New England. Jetstream winds are clearly blocking the smoke from traveling north. NASA image courtesy the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC, which provides daily images [ http://rapidfire.sci.gsfc.nasa.gov/fas/ ] of the United States in a clickable map. |
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Smoke from fires in Idaho an
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| Title |
Smoke from fires in Idaho and Montana |
| Description |
Some things are so large that the perspective from space is necessary to appreciate them. One of those things is the long-distance impact that pollutants like smoke or dust can have on air quality. On August 4, 2007, for example, fires raging in Montana and Idaho polluted the air over much of the United States. The Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) onboard NASA's Aqua [ http://aqua.nasa.gov/ ] satellite captured this image of the smoke and fires on the afternoon of August 4. The lower image is a mosaic of four separate flyovers (separated by faint diagonal lines), while the top image is a close-up view of the smoke and haze along the northeastern seaboard. Strong winds on August 4 created uncontrollable firestorms that forced the evacuation of at least two communities in Montana, reported the Missoulian. Fires in Montana and Idaho are marked with red dots in the lower image and are more clearly visible in the large image. In addition to fueling the flames, the winds blew dense plumes of smoke northeast. The thickest plumes rise from the fires in northwestern Montana. By the time the smoke reached eastern Montana, the plumes were no longer distinct. The air was clouded with a soupy, gray haze that curves north into Canada. High-level winds pushed the smoke south over the western Great Lakes, and into the central and southern United States. From the bank of clouds over Illinois to the Gulf of Mexico, the air was white-gray with haze. From the central United States, the plume of pollution snaked over the Mid-Atlantic States and the Chesapeake Bay to the Atlantic Ocean, where it turned north and flowed along the coast. Some additional haze may line the coast south of Cape Hatteras, but reflected sunlight has turned the ocean's surface into a mirror, effectively masking the presence of any haze. The top image provides a closer view of the haze over the Atlantic Ocean from the Delmarva Peninsula along the eastern shore of the Chesapeake Bay, to the Gulf of Maine, north of Cape Cod. By this point, smoke from the western wildfires is probably only one component of the haze. High temperatures and stagnant air also amplified the impact of urban pollution, creating Code Orange [ http://airnow.gov/index.cfm?action=static.aqi#unh ] air quality conditions, which are unhealthy for sensitive groups such as active children or adults or individuals with respiratory ailments. The jetstream—the fast-moving, high-level winds that steer weather systems—is defined by the stark boundary between the hazy air over the Mid-Atlantic and the clear air over New England. Jetstream winds are clearly blocking the smoke from traveling north. NASA image courtesy the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC, which provides daily images [ http://rapidfire.sci.gsfc.nasa.gov/fas/ ] of the United States in a clickable map. |
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Smoke over Hudson Bay
| Title |
Smoke over Hudson Bay |
| Description |
Thick smoke choked the skies over Manitoba, Ontario, and Hudson Bay on Tuesday, July 24, 2007. The Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov/ ] flying on NASA's Terra [ http://terra.nasa.gov/ ] satellite took this picture the same day. In this image, thick swaths of smoke hundreds of kilometers across stretch eastward over Canada's land and water. In the south, a smoke plume arcs in a clockwise direction toward the southwest before changing direction and heading east. The smoke can be distinguished from the nearby clouds by the difference in color. Whereas clouds are bright white, the smoke is dingy gray. Besides smoke, this image shows hotspots—areas with anomalously warm surface temperatures detected by the satellite sensor. Hotspots are associated with volcanoes or, in this case, fires. Two fires appear in Ontario, near the coast and the border with Manitoba. These diminutive fires, however, are not responsible for the smoke spreading across the region. The smoke results from wildfires [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=14405 ] to the west, north of Lake Winnipeg. According to a news report from the Canadian Broadcasting Corporation, up to 1,000 people in Manitoba were fleeing smoke and fires as of July 25, 2007. Manitoba Conservation officials said some 50 forest fires were burning, nine of them out of control. Hot temperatures, high winds, and lightning strikes all contributed to the situation. Smoke from wildfires is a regular contributor to air pollution, and NASA satellites have helped researches estimate the extent of that contribution. A 2005 study, for instance, determined that Alaskan wildfires in the summer of 2004 produced as much carbon monoxide as human-related activity throughout the continental United States during the same period, and the carbon monoxide increased ground-level ozone in North America and Europe. See Tracking Nature's Contribution to Pollution [ http://earthobservatory.nasa.gov/Study/ContributionPollution/ ] for more information. NASA image courtesy Jeff Schmaltz, MODIS Rapid Response Team, [ http://rapidfire.sci.gsfc.nasa.gov ] Goddard Space Flight Center |
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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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Smoke Plume over Eastern Can
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| Title |
Smoke Plume over Eastern Canada |
| Description |
In late May, a massive smoke plume hundreds of kilometers across blew eastward over New Brunswick toward the Atlantic Ocean. On May 26, 2007, the Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov ] on NASA's Terra [ http://terra.nasa.gov ] satellite captured this image at 11:40 a.m. local time. By the time MODIS took this picture, the smoke appeared to have completely detached itself from the source, a large fire burning in southwestern Quebec, beyond the western edge of this image. In this image, the smoke appears as a gray-beige opaque mass with fuzzy, translucent edges. The plume is thickest in the southwest and diminishes toward the northeast. Just southwest of the plume is a red outline indicating a hotspot—an area where MODIS detected anomalously warm surface temperatures, such as those resulting from fires. This hotspot, however, is not the source for this smoke plume. According to a bulletin [ http://www.ssd.noaa.gov/PS/FIRE/DATA/SMOKE/2007E261650.html ] from the National Oceanic and Atmospheric Administration, the southwestern Quebec fire (visible in this wider-area view [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?USA4/2007146/USA4.2007146.terra ] as a semi-circular arrangement of hotspots at image left) was the source. According to reports from the Canadian Interagency Forest Fire Centre [ http://www.ciffc.ca/firewire.htm ] on May 29, that fire was estimated at 63,211 hectares (156,197 acres), and it was classified as "being held." At the same time, more than 20 wildfires burned in Quebec, news sources reported, and firefighters from other Canadian provinces and the United States had been brought in to provide reinforcements for the area's firefighters. NASA image by Jeff Schmaltz, MODIS Rapid Response Team, [ http://rapidfire.sci.gsfc.nasa.gov ] Goddard Space Flight Center. |
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Fires in the Amazon
| Title |
Fires in the Amazon |
| Description |
On September 29, 2007, the Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov ] on NASA's Aqua [ http://aqua.nasa.gov ] satellite captured this image of the southern Amazon, showing widespread fires (locations marked in red) in the state of Mato Grosso, Brazil. Fires are also clustered along the sides of two major roads that penetrate the heart of the Amazon: the Trans-Amazon highway in the state of Amazonas, and the unpaved portion of the BR-163 Highway in the state of Pará. (The paved portion extends through Mato Grosso.) Fires surround the Xingu Indigenous Park and line the banks of the river that meanders north through the park's center. Fires in Amazon Basin occur for a variety of reasons, nearly all of which are the product of human activity. People use fires to clear rainforest for agricultural land, and they set fires to clear brush from already established pasture or cropland. Also, it is not uncommon for agricultural fires to get out of control and to invade adjacent forest. Fires have been pervasive across South America [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=14549 ] throughout September 2007. Because the Amazon forests are not adapted to fire (unlike grasslands or forests of the western United States, Canada, and Russia), accidental fires can initiate a cycle of degradation in which the risk of more severe fires in the future increases dramatically. Some scientists caution that selective logging and accidental fire may transform large areas of forest along the southern margin of the Amazon into savanna. For more on this topic, please read the feature story From Forest to Field: How Fire Is Transforming the Amazon. [ http://earthobservatory.nasa.gov/Study/AmazonFire/amazon_fire.html ] 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/?AERONET_Alta_Floresta ] 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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Tropical Storm Noel
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Tropical Storm Noel |
| Description |
Though not the most powerful storm of the 2007 Atlantic Hurricane season, Tropical Storm Noel was among the most deadly. Only Category 5 Hurricane Felix [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=14490 ] and its associated flooding [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=14514 ] had a higher toll. Slow-moving Tropical Storm Noel inundated the Dominican Republic, Haiti, Jamaica, Cuba, and the Bahamas with heavy rain between October 28 and November 1, 2007. The resulting floods and mudslides left at least 115 dead and thousands homeless throughout the Caribbean, reported the Associated Press on November 2, 2007. The president of the Dominican Republic, the worst-hit nation, declared a state of emergency. After crossing Hispaniola, the island shared by the Dominican Republic and Haiti, Noel moved over northern Cuba and then tracked northeast over the Bahamas. The storm was expected to strengthen into a Category 1 hurricane, move quickly north along the east coast of the United States, and strike Nova Scotia, Canada, as an extra-tropical storm on November 4, said the National Hurricane Center. [ http://www.nhc.noaa.gov/ ] This image shows the distribution of the rainfall that made Noel a deadly storm. The image shows rainfall totals as measured by the Multi-satellite Precipitation Analysis (MPA) at NASA Goddard Space Flight Center from October 26 through November 1, 2007. The analysis is based on measurements taken by the Tropical Rainfall Measuring Mission (TRMM) satellite. The heaviest rainfall fell in the Dominican Republic and the Bahamas, northeast of Noel's center. Areas of dark red show that rainfall totals over the south-central Dominican Republic and parts of the Bahamas were over 551 millimeters (21 inches). Much of eastern Hispaniola, including both the Dominican Republic and Haiti received at least 200 mm (about 8 inches) of rain, shown in yellow. Rainfall totals over Haiti and Cuba were less, with a range of at least 50 mm (2 inches) to over 200 mm (8 inches). TRMM, launched in 1997 to observe rainfall over the Tropics with a combination of passive microwave and active radar sensors, is a joint mission between NASA and the Japanese space agency, JAXA. Image produced by Hal Pierce (SSAI/NASA GSFC) |
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Fall Colors around Lake Supe
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nasa, nasanaturalhazards
The calendar may have set Se
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Ontario_TMO_2007266
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007-09-23 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
Ontario_TMO_2007266 |
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Snow over the Northeastern U
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nasa, nasaimageofthedaygalle
…
On February 14-15, 2007, a s
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ge_07431
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007-02-19 |
| creator |
NASA -- NASA image courtesy Jeff Schmaltz, rapidfire.sci.gsfc.nasa.gov MODIS Rapid Response Team at NASA Goddard Space Flight Center. |
| identifier |
ge_07431 |
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Fires in the Amazon: Natural
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nasa, nasanaturalhazards
On September 29, 2007, the M
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Alta_Floresta_AMO_2007272
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007-09-29 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
Alta_Floresta_AMO_2007272 |
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Haze over the Great Lakes: N
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nasa, nasanaturalhazards
Haze collected over the Grea
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grlakes_tmo_2007212
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007-07-31 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
grlakes_tmo_2007212 |
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La Nina Strengthens in Autum
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nasa, nasaimageofthedaygalle
…
Continuing a pattern that ha
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lanina_jas_2007289
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007-10-16 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
lanina_jas_2007289 |
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First Snow in US Northeast:
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nasa, nasanaturalhazards
A string of storms brought t
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UnitedStates_TMO_2007340
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007-12-06 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
UnitedStates_TMO_2007340 |
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Smoke from fires in Idaho an
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nasa, nasanaturalhazards
* eoimages.gsfc.nasa.gov/ima
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USA_AMO_2007216
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007-08-04 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
USA_AMO_2007216 |
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Changing Face of Lake Erie:
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nasa, nasaimageofthedaygalle
…
In early March 2007, ice adv
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lakeerie_amo_2007072_geo
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007-03-13 |
| creator |
NASA -- NASA images by Jeff Schmaltz, rapidfire.sci.gsfc.nasa.gov MODIS Rapid Response Team, Goddard Space Flight Center. |
| identifier |
lakeerie_amo_2007072_geo |
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Changing Face of Lake Erie:
…
nasa, nasaimageofthedaygalle
…
In early March 2007, ice adv
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lakeerie_amo_2007072_geo
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007-03-13 |
| creator |
NASA -- NASA images by Jeff Schmaltz, rapidfire.sci.gsfc.nasa.gov MODIS Rapid Response Team, Goddard Space Flight Center. |
| identifier |
lakeerie_amo_2007072_geo |
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Changing Face of Lake Erie:
…
nasa, nasaimageofthedaygalle
…
In early March 2007, ice adv
…
lakeerie_amo_2007072_geo
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007-03-13 |
| creator |
NASA -- NASA images by Jeff Schmaltz, rapidfire.sci.gsfc.nasa.gov MODIS Rapid Response Team, Goddard Space Flight Center. |
| identifier |
lakeerie_amo_2007072_geo |
|
Changing Face of Lake Erie:
…
nasa, nasaimageofthedaygalle
…
In early March 2007, ice adv
…
lakeerie_amo_2007072_geo
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007-03-13 |
| creator |
NASA -- NASA images by Jeff Schmaltz, rapidfire.sci.gsfc.nasa.gov MODIS Rapid Response Team, Goddard Space Flight Center. |
| identifier |
lakeerie_amo_2007072_geo |
|
Changing Face of Lake Erie:
…
nasa, nasaimageofthedaygalle
…
In early March 2007, ice adv
…
lakeerie_amo_2007072_geo
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007-03-13 |
| creator |
NASA -- NASA images by Jeff Schmaltz, rapidfire.sci.gsfc.nasa.gov MODIS Rapid Response Team, Goddard Space Flight Center. |
| identifier |
lakeerie_amo_2007072_geo |
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Smoke Plume over Eastern Can
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nasa, nasanaturalhazards
In late May, a massive smoke
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ecanada_tmo_2007146
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007-05-26 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
ecanada_tmo_2007146 |
|
Spring Migration: Ruby-throa
…
nasa, nasaimageofthedaygalle
…
The sunlight dawdles a littl
…
rubymigration_tmo_2007077
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007-03-21 |
| creator |
NASA -- NASA image by Jesse Allen, using data provided courtesy of the rapidfire.sci.gsfc.nasa.gov/ MODIS Rapid Response team. Hummingbird sightings taken from the Journey North project Website. |
| identifier |
rubymigration_tmo_2007077 |
|
Fires in Eastern Canada: Nat
…
nasa, nasanaturalhazards
North of the St. Lawrence Ri
…
ecanada_amo_2007170
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007-06-19 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
ecanada_amo_2007170 |
|
Fires and Thick Smoke Across
…
nasa, nasaimageofthedaygalle
…
Vehicles and power plants ar
…
SEAsia_AMO2007092
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007-04-02 |
| creator |
NASA -- NASA image courtesy the rapidfire.sci.gsfc.nasa.gov MODIS Rapid Response Team, Goddard Space Flight Center |
| identifier |
SEAsia_AMO2007092 |
|
Snow over the Northeast Unit
…
nasa, nasanaturalhazards
On February 14-15, 2007, a s
…
UnitedStates_TMO_2007050
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007-02-19 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
UnitedStates_TMO_2007050 |
|
Smoke Plume Over Eastern Can
…
nasa, nasaimageofthedaygalle
…
In late May, a massive smoke
…
ge_07726
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007-05-26 |
| creator |
NASA -- NASA image by Jeff Schmaltz, rapidfire.sci.gsfc.nasa.gov MODIS Rapid Response Team, Goddard Space Flight Center. |
| identifier |
ge_07726 |
|
Fires and Smoke Across South
…
nasa, nasaimageofthedaygalle
…
The skies over the heart of
…
samerica_amo_2007252
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007-09-09 |
| creator |
NASA -- NASA image created by Jesse Allen, using data provided courtesy of the rapidfire.sci.gsfc.nasa.gov/ MODIS Rapid Response team. |
| identifier |
samerica_amo_2007252 |
|
Rain from Tropical Storm Noe
…
nasa, nasaimageofthedaygalle
…
Though not the most powerful
…
NoelRain_TRM_2007305
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007-11-01 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
NoelRain_TRM_2007305 |
|
Northern Hemisphere Temperat
…
nasa, nasaimageofthedaygalle
…
As of early January 2007, th
…
globallsta_tmo_200612
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007 |
| creator |
NASA -- NASA image by Jesse Allen, based on data from Zhengming Wan, MODIS Land Surface Temperature Group, www.icess.ucsb.edu/ Institute for Computational Earth System Science, University of California, Santa Barbara. |
| identifier |
globallsta_tmo_200612 |
|
Fall Color Around Lake Super
…
nasa, nasaimageofthedaygalle
…
The calendar may have set Se
…
ge_08084
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007-09-23 |
| creator |
NASA -- NASA image courtesy Jeff Schmaltz, rapidfire.sci.gsfc.nasa.gov MODIS Rapid Response Team at NASA GSFC. |
| identifier |
ge_08084 |
|
Heat Wave across the United
…
nasa, nasaimageofthedaygalle
…
The first full week of Augus
…
namerica_ceres_2007220
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007-08-08 |
| creator |
NASA -- NASA image by Jesse Allen, using data provided courtesy of the CERES team at NASA Langley Research Center. Caption courtesy Denise Stefula, NASA Langley. |
| identifier |
namerica_ceres_2007220 |
|
Millennium Open Pit Mine, Al
…
nasa, nasaimageofthedaygalle
…
The United States imports mo
…
millenium_ast_2007212
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2007-07-31 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
millenium_ast_2007212 |
|
A Change in the Weather
PIA09346
Sol (our sun)
CRISM
| Title |
A Change in the Weather |
| Original Caption Released with Image |
These two Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) images were acquired over the northern plains of Mars near one of the possible landing sites for NASA's Phoenix mission, set to launch in August 2007. The lower right image was acquired first, on Nov. 29, 2006, at 0720 UTC (2:20 a.m. EST), while the upper left image was acquired about one month later on Dec. 26, 2006, at 0030 UTC (or Dec. 25, 2006, at 7:30 p.m. EST). The CRISM data were taken in 544 colors covering the wavelength range from 0.36-3.92 micrometers, and show features as small as about 20 meters (66 feet) across. The images shown above are red-green-blue color composites using wavelengths 0.71, 0.6, and 0.53 micrometers, respectively (or infrared, red, and green light), and are overlain on a mosaic of Mars Odyssey Thermal Emission Imaging System (THEMIS) visible data. Each image covers a region about 11 kilometers (6.6 miles) wide at its narrowest, and they overlap near 71.0 degrees north latitude, 252.8 degrees east longitude The Earth equivalent to the season and latitude of this site is late summer in northern Canada, above the Arctic Circle. At that season and latitude, Martian weather conditions are transitioning from summer with generally clear skies, occasional weather fronts, and infrequent dust storms, to an autumn with pervasive, thick water-ice clouds. The striking difference in the appearance of the images is caused by the seasonal development of water-ice clouds. The earlier (lower right) image is cloud-free, and surface features can clearly be seen - like the small crater in the upper left. However, the clouds and haze in the later (upper left) image make it hard to see the surface. There are variations in the thickness and spacing of the clouds, just like clouds on Earth. On other days when nearby sites were imaged, the cloud cover varied day-to-day, but as the seasons change the trend is more and thicker clouds. With the onset of autumn the clouds will gradually cover the area and, just as with autumn on Earth, the Martian day is getting shorter at these high northern latitudes. In a few more months this area will settle into winter darkness and be covered in a layer of frost and carbon dioxide snow. CRISM's mission: Find the spectral fingerprints of aqueous and hydrothermal deposits and map the geology, composition and stratigraphy of surface features. The instrument will also watch the seasonal variations in Martian dust and ice aerosols, and water content in surface materials -- leading to new understanding of the climate. The Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) is one of six science instruments on NASA's Mars Reconnaissance Orbiter. Led by The Johns Hopkins University Applied Physics Laboratory, the CRISM team includes expertise from universities, government agencies and small businesses in the United States and abroad. |
|
KENNEDY SPACE CENTER, FLA. -
…
| Description |
KENNEDY SPACE CENTER, FLA. -- A turtle cruises past a lesser yellowleg in a pond near Kennedy Space Center. The yellowleg is a smaller edition of the greater yellowleg, with a shorter bill. The species inhabits marshy ponds, lake and river shores, mud flats and, in the breeding season, boreal bogs. They range throughout Alaska and Canada, wintering from the southern United States throughout South America. KSC shares a boundary with the Merritt Island National Wildlife Refuge, which surrounds it. The refuge is a habitat for more than 310 species of birds, 25 mammals, 117 fishes and 65 amphibians and reptiles. In addition, the refuge supports 19 endangered or threatened wildlife species on Federal or State lists, more than any other single refuge in the U.S. Photo credit: NASA/Ken Thornsley |
| Release Date |
03/29/2007 |
|
KENNEDY SPACE CENTER, FLA. -
…
| Description |
KENNEDY SPACE CENTER, FLA. -- Lesser yellowlegs wade through a pond near Kennedy Space Center. The yellowleg is a smaller edition of the greater yellowleg, with a shorter bill. The species inhabits marshy ponds, lake and river shores, mud flats and, in the breeding season, boreal bogs. They range throughout Alaska and Canada, wintering from the southern United States throughout South America. KSC shares a boundary with the Merritt Island National Wildlife Refuge, which surrounds it. The refuge is a habitat for more than 310 species of birds, 25 mammals, 117 fishes and 65 amphibians and reptiles. In addition, the refuge supports 19 endangered or threatened wildlife species on Federal or State lists, more than any other single refuge in the U.S. Photo credit: NASA/Ken Thornsley |
| Release Date |
03/29/2007 |
|
KENNEDY SPACE CENTER, FLA. -
…
| Description |
KENNEDY SPACE CENTER, FLA. -- A lesser yellowleg slows for landing in a pond near Kennedy Space Center. The yellowleg is a smaller edition of the greater yellowleg, with a shorter bill. The species inhabits marshy ponds, lake and river shores, mud flats and, in the breeding season, boreal bogs. They range throughout Alaska and Canada, wintering from the southern United States throughout South America. KSC shares a boundary with the Merritt Island National Wildlife Refuge, which surrounds it. The refuge is a habitat for more than 310 species of birds, 25 mammals, 117 fishes and 65 amphibians and reptiles. In addition, the refuge supports 19 endangered or threatened wildlife species on Federal or State lists, more than any other single refuge in the U.S. Photo credit: NASA/Ken Thornsley |
| Release Date |
03/29/2007 |
|
|
