|
|
Global Large-scale Precipita
…
| Title |
Global Large-scale Precipitation during Hurricane Frances (WMS) |
| Abstract |
Water vapor is a small but significant constituent of the atmosphere, warming the planet due to the greenhouse effect and condensing to form clouds. As moisture-laden air rises, the relative humidity increases until it saturates the air, at which time precipitation occurs. If the uplift of air is due to large-scale atmospheric motion, then the precipitation is called large-scale, or dynamic. This animation shows the large-scale precipitation for the whole globe from September 1, 2004, through September 5, 2004, during the period of Hurricane Frances in the western Atlantic Ocean and Typhoon Songda in the western Pacific Ocean. Large-scale precipitation tends to be continuous and to come from decks of stratus clouds rather than from thunderstorms. |
| Completed |
2005-07-28 |
|
Global Large-scale Precipita
…
| Title |
Global Large-scale Precipitation during Hurricane Frances (WMS) |
| Abstract |
Water vapor is a small but significant constituent of the atmosphere, warming the planet due to the greenhouse effect and condensing to form clouds. As moisture-laden air rises, the relative humidity increases until it saturates the air, at which time precipitation occurs. If the uplift of air is due to large-scale atmospheric motion, then the precipitation is called large-scale, or dynamic. This animation shows the large-scale precipitation for the whole globe from September 1, 2004, through September 5, 2004, during the period of Hurricane Frances in the western Atlantic Ocean and Typhoon Songda in the western Pacific Ocean. Large-scale precipitation tends to be continuous and to come from decks of stratus clouds rather than from thunderstorms. |
| Completed |
2005-07-28 |
|
Hurricane Frances Progressio
…
| Title |
Hurricane Frances Progression with Fixed View |
| Abstract |
Hurricane Frances races towards Florida and both the Terra and Aqua satellite are spectators. |
| Completed |
2004-09-03 |
|
Hurricane Frances Progressio
…
| Title |
Hurricane Frances Progression with a Fixed View |
| Abstract |
A fixed view of the Atlantic Ocean with Hurricane Frances sprinting towards Florida |
| Completed |
2004-09-07 |
|
Global Cloud Cover during Hu
…
| Title |
Global Cloud Cover during Hurricane Frances (WMS) |
| Abstract |
Water vapor is a small but significant constituent of the atmosphere, warming the planet due to the greenhouse effect and condensing to form clouds which both warm and cool the Earth in different circumstances. Warm, moisture-laden air moving out from the tropics brings clouds and rainfall to the temperate zones. This animation shows the cloud cover for the whole globe from September 1, 2004, through September 5, 2004, during the period of Hurricane Frances in the western Atlantic Ocean and Typhoon Songda in the western Pacific Ocean. The cloud cover in any region significantly affects the energy balance since sunlight reflected from the clouds is not available to heat the surface. The motion of clouds in this animation clearly indicates the speed and direction of winds around the globe. |
| Completed |
2005-07-25 |
|
Global Cloud Cover during Hu
…
| Title |
Global Cloud Cover during Hurricane Frances (WMS) |
| Abstract |
Water vapor is a small but significant constituent of the atmosphere, warming the planet due to the greenhouse effect and condensing to form clouds which both warm and cool the Earth in different circumstances. Warm, moisture-laden air moving out from the tropics brings clouds and rainfall to the temperate zones. This animation shows the cloud cover for the whole globe from September 1, 2004, through September 5, 2004, during the period of Hurricane Frances in the western Atlantic Ocean and Typhoon Songda in the western Pacific Ocean. The cloud cover in any region significantly affects the energy balance since sunlight reflected from the clouds is not available to heat the surface. The motion of clouds in this animation clearly indicates the speed and direction of winds around the globe. |
| Completed |
2005-07-25 |
|
Global Atmospheric Water Vap
…
| Title |
Global Atmospheric Water Vapor during Hurricane Frances (WMS) |
| Abstract |
Water vapor is a small but significant constituent of the atmosphere, warming the planet due to the greenhouse effect and condensing to form clouds which both warm and cool the Earth in different circumstances. Warm, moisture-laden air moving out from the tropics brings rainfall to the temperate zones. This animation shows the atmospheric water vapor for the whole globe from September 1, 2004, through September 5, 2004, during the period of Hurricane Frances in the western Atlantic Ocean and Typhoon Songda in the western Pacific Ocean. The band of water vapor over the tropics is the intertropical convergence zone, where converging trade winds and high temperatures force large amounts of water high into the atmosphere. Both Hurricane Frances and Typhoon Songda exhibit significant spiral bands of high water vapor. |
| Completed |
2005-07-25 |
|
Global Atmospheric Water Vap
…
| Title |
Global Atmospheric Water Vapor during Hurricane Frances (WMS) |
| Abstract |
Water vapor is a small but significant constituent of the atmosphere, warming the planet due to the greenhouse effect and condensing to form clouds which both warm and cool the Earth in different circumstances. Warm, moisture-laden air moving out from the tropics brings rainfall to the temperate zones. This animation shows the atmospheric water vapor for the whole globe from September 1, 2004, through September 5, 2004, during the period of Hurricane Frances in the western Atlantic Ocean and Typhoon Songda in the western Pacific Ocean. The band of water vapor over the tropics is the intertropical convergence zone, where converging trade winds and high temperatures force large amounts of water high into the atmosphere. Both Hurricane Frances and Typhoon Songda exhibit significant spiral bands of high water vapor. |
| Completed |
2005-07-25 |
|
Global Convective Precipitat
…
| Title |
Global Convective Precipitation during Hurricane Frances (WMS) |
| Abstract |
Water vapor is a small but significant constituent of the atmosphere, warming the planet due to the greenhouse effect and condensing to form clouds. As moisture-laden air rises, the relative humidity increases until it saturates the air, at which time precipitation occurs. If the uplift of air is due to strong updrafts and unstable air systems, as in thunderstorms, then the precipitation is called convective. This animation shows the convective precipitation for the whole globe from September 1, 2004, through September 5, 2004, during the period of Hurricane Frances in the western Atlantic Ocean and Typhoon Songda in the western Pacific Ocean. Convective precipitation is more intense but less long-lasting than large-scale precipitation. |
| Completed |
2005-07-28 |
|
Global Convective Precipitat
…
| Title |
Global Convective Precipitation during Hurricane Frances (WMS) |
| Abstract |
Water vapor is a small but significant constituent of the atmosphere, warming the planet due to the greenhouse effect and condensing to form clouds. As moisture-laden air rises, the relative humidity increases until it saturates the air, at which time precipitation occurs. If the uplift of air is due to strong updrafts and unstable air systems, as in thunderstorms, then the precipitation is called convective. This animation shows the convective precipitation for the whole globe from September 1, 2004, through September 5, 2004, during the period of Hurricane Frances in the western Atlantic Ocean and Typhoon Songda in the western Pacific Ocean. Convective precipitation is more intense but less long-lasting than large-scale precipitation. |
| Completed |
2005-07-28 |
|
Global Atmospheric Surface P
…
| Title |
Global Atmospheric Surface Pressure during Hurricane Frances (WMS) |
| Abstract |
The weight of the Earth's atmosphere exerts pressure on the surface of the Earth. This pressure varies from place-to-place due the variations in the Earth's surface since higher altitudes have less atmosphere above them than lower altitudes. Atmospheric pressure also varies from time-to-time due to the uneven heating of the atmosphere by the sun and the rotation of the Earth, causing weather. This animation shows the atmospheric surface pressure for the whole globe from September 1, 2004, through September 5, 2004, during the period of Hurricane Frances in the western Atlantic Ocean and Typhoon Songda in the western Pacific Ocean. The major changes in pressure occur over land where the surface altitude varies, but the sharp, moving low pressures areas for Frances and Songda can be clearly seen in the oceans. Since changing surface pressure areas over land are hard to see in these images due to the strong altitude variations, plots of the atmospheric surface pressure are almost never used to study the weather. A different plot, of sea-level pressure, is used instead. |
| Completed |
2005-07-25 |
|
Global Atmospheric Surface P
…
| Title |
Global Atmospheric Surface Pressure during Hurricane Frances (WMS) |
| Abstract |
The weight of the Earth's atmosphere exerts pressure on the surface of the Earth. This pressure varies from place-to-place due the variations in the Earth's surface since higher altitudes have less atmosphere above them than lower altitudes. Atmospheric pressure also varies from time-to-time due to the uneven heating of the atmosphere by the sun and the rotation of the Earth, causing weather. This animation shows the atmospheric surface pressure for the whole globe from September 1, 2004, through September 5, 2004, during the period of Hurricane Frances in the western Atlantic Ocean and Typhoon Songda in the western Pacific Ocean. The major changes in pressure occur over land where the surface altitude varies, but the sharp, moving low pressures areas for Frances and Songda can be clearly seen in the oceans. Since changing surface pressure areas over land are hard to see in these images due to the strong altitude variations, plots of the atmospheric surface pressure are almost never used to study the weather. A different plot, of sea-level pressure, is used instead. |
| Completed |
2005-07-25 |
|
Global Surface Air Temperatu
…
| Title |
Global Surface Air Temperature during Hurricane Frances (WMS) |
| Abstract |
As the Sun's energy reaches the Earth, it is either reflected, absorbed by the clouds, or absorbed by the Earth's surface. The part absorbed by the Earth's surface heats the Earth, which then heats the air just above the surface. This process occurs rapidly in the case of dry land and slowly in the case of the oceans. This animation shows the surface air temperature at an altitude of 2 meters for the whole globe from September 1, 2004, through September 5, 2004, during the period of Hurricane Frances in the western Atlantic Ocean and Typhoon Songda in the western Pacific Ocean. The animation clearly shows the air over land reacting rapidly to solar heating during the day and cooling at night, while the daily solar cyle is not visible in the temperature of the air over the ocean. A very dynamic region of changing air temperature is visible in the interaction between the cold air over Antarctica and the warmer mid-latitude air over the southern oceans during this region of polar night. Hurricane Frances and Typhhon Songda are just barely visible as circulating temperature patterns in the western Atlantic and Pacific Oceans. |
| Completed |
2005-07-25 |
|
Global Surface Air Temperatu
…
| Title |
Global Surface Air Temperature during Hurricane Frances (WMS) |
| Abstract |
As the Sun's energy reaches the Earth, it is either reflected, absorbed by the clouds, or absorbed by the Earth's surface. The part absorbed by the Earth's surface heats the Earth, which then heats the air just above the surface. This process occurs rapidly in the case of dry land and slowly in the case of the oceans. This animation shows the surface air temperature at an altitude of 2 meters for the whole globe from September 1, 2004, through September 5, 2004, during the period of Hurricane Frances in the western Atlantic Ocean and Typhoon Songda in the western Pacific Ocean. The animation clearly shows the air over land reacting rapidly to solar heating during the day and cooling at night, while the daily solar cyle is not visible in the temperature of the air over the ocean. A very dynamic region of changing air temperature is visible in the interaction between the cold air over Antarctica and the warmer mid-latitude air over the southern oceans during this region of polar night. Hurricane Frances and Typhhon Songda are just barely visible as circulating temperature patterns in the western Atlantic and Pacific Oceans. |
| Completed |
2005-07-25 |
|
Global High Altitude Wind Sp
…
| Title |
Global High Altitude Wind Speed during Hurricane Frances (WMS) |
| Abstract |
The Earth's atmosphere exerts pressure based on the weight of the air above. Differences in pressure from place-to-place cause winds to try to flow from high pressure to low pressure regions to even out the differences, but the Earth's rotation and wind friction with the surface act to slow or divert the winds. This animation shows the high altitude wind speeds for the whole globe from September 1, 2004, through September 5, 2004, during the period of Hurricane Frances in the western Atlantic Ocean and Typhoon Songda in the western Pacific Ocean. At high altitudes, the difference between between high pressures from warm tropical air and low pressures from cold polar air try to force air from the tropics toward the poles, but the Earth's rotation diverts this flow to the east, resulting in the high velocity west-to-east jet stream flows at mid-latitudes. The circular flows from Frances and Songda can barely be seen at this altitude. |
| Completed |
2005-07-28 |
|
Global High Altitude Wind Sp
…
| Title |
Global High Altitude Wind Speed during Hurricane Frances (WMS) |
| Abstract |
The Earth's atmosphere exerts pressure based on the weight of the air above. Differences in pressure from place-to-place cause winds to try to flow from high pressure to low pressure regions to even out the differences, but the Earth's rotation and wind friction with the surface act to slow or divert the winds. This animation shows the high altitude wind speeds for the whole globe from September 1, 2004, through September 5, 2004, during the period of Hurricane Frances in the western Atlantic Ocean and Typhoon Songda in the western Pacific Ocean. At high altitudes, the difference between between high pressures from warm tropical air and low pressures from cold polar air try to force air from the tropics toward the poles, but the Earth's rotation diverts this flow to the east, resulting in the high velocity west-to-east jet stream flows at mid-latitudes. The circular flows from Frances and Songda can barely be seen at this altitude. |
| Completed |
2005-07-28 |
|
Global Surface Latent Heat F
…
| Title |
Global Surface Latent Heat Flux during Hurricane Frances (WMS) |
| Abstract |
As the Sun's energy reaches the Earth, it is either reflected, absorbed by the clouds, or absorbed by the Earth's surface. The part absorbed by the surface heats the Earth, which causes surface water to evaporate to the air, particularly over oceans or moist land. Similarly, a cold surface causes water to condense from the air onto the land or ocean. Latent heat flux is the amount of energy moving from the surface to the air due to evapolation (positive values) or from the air to the land due to condensation (negative values). This animation shows the latent heat flux for the whole globe from September 1, 2004, through September 5, 2004, during the period of Hurricane Frances in the western Atlantic Ocean and Typhoon Songda in the western Pacific Ocean. The animation clearly shows the evaporation over land only during the heat of the day, while the evaporation over the ocean is continuous throughout the day. The highest positive latent heat flux occurs during hurricanes and typhoons, as these events are powered by the movement of heat energy from the warm ocean to the atmosphere, seen here in Hurricane Frances and Typhoon Songda. Significant negative latent heat flux is somewhat rare and occurs over the ocean only during certain configurations of air and surface conditions. |
| Completed |
2005-07-25 |
|
Global Surface Latent Heat F
…
| Title |
Global Surface Latent Heat Flux during Hurricane Frances (WMS) |
| Abstract |
As the Sun's energy reaches the Earth, it is either reflected, absorbed by the clouds, or absorbed by the Earth's surface. The part absorbed by the surface heats the Earth, which causes surface water to evaporate to the air, particularly over oceans or moist land. Similarly, a cold surface causes water to condense from the air onto the land or ocean. Latent heat flux is the amount of energy moving from the surface to the air due to evapolation (positive values) or from the air to the land due to condensation (negative values). This animation shows the latent heat flux for the whole globe from September 1, 2004, through September 5, 2004, during the period of Hurricane Frances in the western Atlantic Ocean and Typhoon Songda in the western Pacific Ocean. The animation clearly shows the evaporation over land only during the heat of the day, while the evaporation over the ocean is continuous throughout the day. The highest positive latent heat flux occurs during hurricanes and typhoons, as these events are powered by the movement of heat energy from the warm ocean to the atmosphere, seen here in Hurricane Frances and Typhoon Songda. Significant negative latent heat flux is somewhat rare and occurs over the ocean only during certain configurations of air and surface conditions. |
| Completed |
2005-07-25 |
|
Global Atmospheric Sea Level
…
| Title |
Global Atmospheric Sea Level Pressure during Hurricane Frances (WMS) |
| Abstract |
The weight of the Earth's atmosphere exerts pressure on the surface of the Earth. This pressure varies from place-to-place due the variations in the Earth's surface since higher altitudes have less atmosphere above them than lower altitudes. Atmospheric pressure also varies from time-to-time due to the uneven heating of the atmosphere by the sun and the rotation of the Earth, causing weather. In order to see the changes in pressure which affect the weather, the variation due to altitude is removed from the surface pressure, creating a quantity called sea level pressure. This animation shows the atmospheric sea level pressure for the whole globe from September 1, 2004, through September 5, 2004, during the period of Hurricane Frances in the western Atlantic Ocean and Typhoon Songda in the western Pacific Ocean. The sharp, moving low pressures areas for Frances and Songda can be clearly seen in the oceans. Even with the direct effect of altitude removed, cold high-altitude regions such as the South Pole and the Himalayan Plateau still exhibit lower-than-normal pressures, probably due to the interaction of cold air over those regions with the warmer air in the surrounding regions. |
| Completed |
2005-06-22 |
|
Global Atmospheric Sea Level
…
| Title |
Global Atmospheric Sea Level Pressure during Hurricane Frances (WMS) |
| Abstract |
The weight of the Earth's atmosphere exerts pressure on the surface of the Earth. This pressure varies from place-to-place due the variations in the Earth's surface since higher altitudes have less atmosphere above them than lower altitudes. Atmospheric pressure also varies from time-to-time due to the uneven heating of the atmosphere by the sun and the rotation of the Earth, causing weather. In order to see the changes in pressure which affect the weather, the variation due to altitude is removed from the surface pressure, creating a quantity called sea level pressure. This animation shows the atmospheric sea level pressure for the whole globe from September 1, 2004, through September 5, 2004, during the period of Hurricane Frances in the western Atlantic Ocean and Typhoon Songda in the western Pacific Ocean. The sharp, moving low pressures areas for Frances and Songda can be clearly seen in the oceans. Even with the direct effect of altitude removed, cold high-altitude regions such as the South Pole and the Himalayan Plateau still exhibit lower-than-normal pressures, probably due to the interaction of cold air over those regions with the warmer air in the surrounding regions. |
| Completed |
2005-06-22 |
|
Global 300 hPa Geopotential
…
| Title |
Global 300 hPa Geopotential Height during Hurricane Frances (WMS) |
| Abstract |
The Earth's atmosphere exerts pressure based on the weight of the air above, so the pressure reduces with rising altitude. This rate of pressure reduction with altitude is based on the temperature of the air, with the pressure of colder air reducing faster with altitude than warmer air. Therefore, a surface of constant pressure has a lower altitude at the poles than the equator. This animation shows the altitude above sea level (the geopotential height) of the 300 hectopascal (hPa) pressure surface for the whole globe from September 1, 2004, through September 5, 2004, during the period of Hurricane Frances in the western Atlantic Ocean and Typhoon Songda in the western Pacific Ocean. This pressure is about one-third of the normal pressure at sea level. The largest downward slope of this surface occurs in the mid-latitudes and is shown in yellow in the animation. At this region, air is trying to flow from the equator towards the poles to reduce the slope, but the rotation of the Earth forces the flow to divert to the east, forming the strong west-to-east jet stream flows in these regions. Frances and Songda can be seen as sharp yellow dots of reduced height in their respective locations. |
| Completed |
2005-07-28 |
|
Global 300 hPa Geopotential
…
| Title |
Global 300 hPa Geopotential Height during Hurricane Frances (WMS) |
| Abstract |
The Earth's atmosphere exerts pressure based on the weight of the air above, so the pressure reduces with rising altitude. This rate of pressure reduction with altitude is based on the temperature of the air, with the pressure of colder air reducing faster with altitude than warmer air. Therefore, a surface of constant pressure has a lower altitude at the poles than the equator. This animation shows the altitude above sea level (the geopotential height) of the 300 hectopascal (hPa) pressure surface for the whole globe from September 1, 2004, through September 5, 2004, during the period of Hurricane Frances in the western Atlantic Ocean and Typhoon Songda in the western Pacific Ocean. This pressure is about one-third of the normal pressure at sea level. The largest downward slope of this surface occurs in the mid-latitudes and is shown in yellow in the animation. At this region, air is trying to flow from the equator towards the poles to reduce the slope, but the rotation of the Earth forces the flow to divert to the east, forming the strong west-to-east jet stream flows in these regions. Frances and Songda can be seen as sharp yellow dots of reduced height in their respective locations. |
| Completed |
2005-07-28 |
|
Hurricane Frances Progressio
…
| Title |
Hurricane Frances Progression |
| Abstract |
NASA satellites are keeping an eye on Hurricane Frances journey across the Atlantic Ocean. MODIS Insturment on board NASA's Aqua and Terra satellites captured a series of high resolution images of Hurricane Frances. |
| Completed |
2004-09-03 |
|
Hurricane Frances on Septemb
…
| Title |
Hurricane Frances on September 1, 2004 |
| Abstract |
The Terra satellite gets a birdseye view of Hurricane Frances, with the help of the MODIS instrument. |
| Completed |
2004-09-02 |
|
Hurricane Frances on Septemb
…
| Title |
Hurricane Frances on September 1, 2004 |
| Abstract |
The Terra satellite gets a birdseye view of Hurricane Frances, with the help of the MODIS instrument. |
| Completed |
2004-09-02 |
|
Flying along with Hurricane
…
| Title |
Flying along with Hurricane Frances |
| Abstract |
Two Earth Observing Fleet Satellites, Aqua and Terra have been monitoring the progress of Hurricane Frances. |
| Completed |
2004-09-08 |
|
Hurricane Frances Structure
…
| Title |
Hurricane Frances Structure September 1, 2004 |
| Abstract |
NASA's TRMM spacecraft is used by meteorologists to understand the underlying rain structure beneath Hurricane Frances on September 1, 2004. Here large and powerful towers are making the hurricane stronger. The rain bands are colored to represent rain intensity. Blue represents areas with at least 0.25 inches of rain per hour. Green shows at least 0.5 inches of rain per hour. Yellow is at least 1.0 inch of rain and red is at least 2.0 inches of rain per hour. |
| Completed |
2005-03-24 |
|
Hurricane Frances Structure
…
| Title |
Hurricane Frances Structure September 1, 2004 |
| Abstract |
NASA's TRMM spacecraft is used by meteorologists to understand the underlying rain structure beneath Hurricane Frances on September 1, 2004. Here large and powerful towers are making the hurricane stronger. The rain bands are colored to represent rain intensity. Blue represents areas with at least 0.25 inches of rain per hour. Green shows at least 0.5 inches of rain per hour. Yellow is at least 1.0 inch of rain and red is at least 2.0 inches of rain per hour. |
| Completed |
2005-03-24 |
|
Global Surface Wind Speed du
…
| Title |
Global Surface Wind Speed during Hurricane Frances (WMS) |
| Abstract |
The weight of the Earth's atmosphere exerts pressure on the surface of the Earth. This pressure varies from place-to-place and from time-to-time due to surface irregularities, uneven heating of the atmosphere by the sun, and the Earth's rotation. Differences in pressure from place-to-place cause winds to try to flow from high pressure to low pressure regions to even out the differences, but the Earth's rotation and wind friction with the surface act to slow or divert the winds. This animation shows the surface wind speeds for the whole globe from September 1, 2004, through September 5, 2004, during the period of Hurricane Frances in the western Atlantic Ocean and Typhoon Songda in the western Pacific Ocean. The highest, smoothest winds occur over the oceans where there are no surface irregularities to break up the flow, while flows over land tend to be irregular and highly variable. The highest winds occur in Hurricane Frances and Typhoon Songda, but note that the hurricane's wind speeds reduce dramatically when crossing Florida. |
| Completed |
2005-07-25 |
|
Global Surface Wind Speed du
…
| Title |
Global Surface Wind Speed during Hurricane Frances (WMS) |
| Abstract |
The weight of the Earth's atmosphere exerts pressure on the surface of the Earth. This pressure varies from place-to-place and from time-to-time due to surface irregularities, uneven heating of the atmosphere by the sun, and the Earth's rotation. Differences in pressure from place-to-place cause winds to try to flow from high pressure to low pressure regions to even out the differences, but the Earth's rotation and wind friction with the surface act to slow or divert the winds. This animation shows the surface wind speeds for the whole globe from September 1, 2004, through September 5, 2004, during the period of Hurricane Frances in the western Atlantic Ocean and Typhoon Songda in the western Pacific Ocean. The highest, smoothest winds occur over the oceans where there are no surface irregularities to break up the flow, while flows over land tend to be irregular and highly variable. The highest winds occur in Hurricane Frances and Typhoon Songda, but note that the hurricane's wind speeds reduce dramatically when crossing Florida. |
| Completed |
2005-07-25 |
|
Hurricane Frances
| Title |
Hurricane Frances |
| Description |
The MODIS instrument aboard NASA's Terra satellite captured this true-color image of Hurricane Frances on September 1, 2004 at 15:30 UTC (11:30 AM EDT). At the time this image was taken Frances was located approximately 1180 kilometers (735 miles) east-southeast of the southeast coast of Florida. Maximum sustained winds were near 220 km/hr (140 mph) and the storm was moving towards the west-northwest at 26 km/hr (16 mph). The MODIS Rapid Response System provides this image at additional resolutions and formats. NASA image courtesy Jacques Descloitres, MODIS Land Rapid Response Team at NASA GSFC. |
|
Hurricane Frances
| Title |
Hurricane Frances |
| Description |
Powerful Hurricane Frances moves ever closer to the Bahamas Islands as it spins through the Atlantic in this image, acquired by the Sea-viewing Wide Field of View Sensor (SeaWiFS [ http://seawifs.gsfc.nasa.gov/SEAWIFS.html ]) on September 1, 2004. The angle of this image, with Florida in the upper left corner and Cuba beneath it, gives perspective on how large Frances has become. With tropical storm force winds extending 295 kilometers (185 miles) from the eye, the storm has a long reach. When this image was acquired, Frances' maximum sustained winds had reached 220 kilometers per hour (140 mph), making it a solid Category Four storm. It was moving west northwest at 24 kilometers per hour (15 mph), and was expected to pass over the Bahamas within 24 hours after this image was taken. Image provided by the SeaWiFS [ http://seawifs.gsfc.nasa.gov/SEAWIFS.html ] Project, NASA/Goddard Space Flight Center, and ORBIMAGE |
|
Hurricane Frances
| Title |
Hurricane Frances |
| Description |
The SeaWinds scatterometer aboard NASA?s QuikSCAT satellite collected the data used to create this colorful image of hurricane Frances as it approached Cuba on September 1, 2004, at 6:09 p.m. EDT. The colored background shows the near-surface wind speeds at 2.5 km resolution. The strongest winds, shown in purple, are at the center of the storm, with gradually weakening winds forming rings around the center. The black barbs indicate wind speed and direction at QuikSCAT's nominal 25 km resolution, white barbs indicate areas of heavy rain. The black grid over the image show degrees of latitude and longitude. The vertical lines of longitude start at 77 West on the left and run to 65 on the right. The horizontal lines of latitude start at 18 North on the bottom and run to 27 North on top. NASA's Quick Scatterometer (QuikSCAT [ http://winds.jpl.nasa.gov ]) spacecraft was launched from Vandenberg Air Force Base, California on June 19, 1999. QuikScat carries the SeaWinds scatterometer, a specialized microwave radar that measures near-surface wind speed and direction under all weather and cloud conditions over the Earth's oceans. In recent years, the ability to detect and track severe storms has been dramatically enhanced by the advent of weather satellites. Data from the SeaWinds scatterometer is augmenting traditional satellite images of clouds by providing direct measurements of surface winds to compare with the observed cloud patterns in an effort to better determine a hurricane's location, direction, structure, and strength. Specifically, these wind data are helping meteorologists to more accurately identify the extent of gale-force winds associated with a storm, while supplying inputs to numerical models that provide advanced warning of high waves and flooding. NASA image courtesy the QuikSCAT [ http://winds.jpl.nasa.gov ] team at NASA's Jet Propulsion Laboratory. |
|
Landslide Lake in Tibet Floo
…
| Title |
Landslide Lake in Tibet Floods India |
| Description |
*Landslide Lake in Tibet Floods India* Water levels in the Pareechu River in Tibet continue to build behind a natural dam, created by a landslide in the early summer. On September 1, 2004, the Advanced Spaceborne Thermal Emission and Reflection Radiometer, (ASTER [ http://asterweb.jpl.nasa.gov/ ]) on NASA?s Terra [ http://terra.nasa.gov/ ] satellite captured the top image of the new lake. The discolored rings around the basin provide a nice comparison point to see just how much the lake has grown since July 15, when the lower image was taken. The water appears to have filled the basin and is building upriver in the northwest. The new lake poses a threat to communities downstream in northern India, which will be flooded if the landslide-dam bursts. This false colour composite was created by combining near infrared, red, and green wavelengths (ASTER bands 3, 2, and 1 respectively). Both images show the lake at 15 meters per pixel. The large image acquired on October 1, 2003, shows the river before the lake formed. NASA image created from data provided courtesy of NASA/GSFC/MITI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team [ http://asterweb.jpl.nasa.gov/ ] |
|
Landslide Lake in Tibet Floo
…
| Title |
Landslide Lake in Tibet Floods India |
| Description |
Roughly a year after forming behind a landslide dam, the lake on the Pareechu River in Tibet began to drain on June 26, 2005. Water and mud gushed down the Pareechu River into the Sutlej, the major river that flows through India?s Himachal Pradesh state. Thousands were evacuated from the banks of the Sutlej, and though several bridges and buildings were damaged or destroyed, no injuries were reported in the flood, according to news reports. On July 2, 2005, the Advanced Spaceborne Thermal Emission and Reflection Radiometer, (ASTER [ http://asterweb.jpl.nasa.gov/ ]) on NASA?s Terra [ http://terra.nasa.gov/ ] satellite captured the top image of the shrinking lake. Both the lake and the river behind it have shrunk considerably since September 1, 2004, when the lower image was taken. A silvery sheen of mud or gravel seems to have replaced the dark blue water in the upper reaches of the river and lake. Below the lake, the river has grown where water is now pushing its way downstream. NASA image created by Jesse Allen, Earth Observatory, using data provided courtesy of NASA/GSFC/MITI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team |
|
Mt. Asama on Honshu Island,
…
| Title |
Mt. Asama on Honshu Island, Japan |
| Description |
On September 1, 2004, Japan?s Mt. Asama erupted explosively. After a two-week rest, the volcano continued its eruption in several small bursts starting on September 14, sending plumes of ash from the its 2,568 meter-high summit crater. The Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA?s Terra [ http://terra.nasa.gov/ ] satellite captured this view of the smoking volcano at 1:30 UTC (10:30 a.m. Tokyo time) on September 16, 2004. In this image, the ash plume is heading due south towards Suruga Bay. About 140 kilometers to the southeast, Tokyo is the cement-colored region around the Bay of Tokyo. This activity is not unusual?Asama is the most active volcano on Honshu, Japan?s main island. Its last eruption was in 2003, though the current eruption is its most violent since 1983. The image shows the area around Mt. Asama at 500 meters per pixel. The large image shows the entire island of Honshu at MODIS? maximum resolution of 250 meters per pixel. The scene is available in additional resolutions and formats [ http://rapidfire.sci.gsfc.nasa.gov/gallery/?2004260-0916/Japan.A2004260.0130 ] from the MODIS Rapid Response Team. NASA image created by Jesse Allen, Earth Observatory from data obtained from the MODIS Rapid Response team. |
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Saharan Dust over the Red Se
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| Title |
Saharan Dust over the Red Sea |
| Description |
A thick plume of desert dust (tan colored) was blowing eastward out of southern Egypt and Sudan, and out over the Red Sea on September 1, 2004. The dust is so thick in many places that it completely blocks the view of the surface. This true-color scene was acquired by the Moderate Resolution Imaging Spectroradiometer (MODIS) aboard NASA's Aqua satellite. The high-resolution image available here is 250 meters per pixel. NASA image by Jesse Allen, Earth Observatory, using data courtesy MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] |
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Typhoon Songda
| Title |
Typhoon Songda |
| Description |
The MODIS instrument aboard NASA's Terra satellite captured this true-color image of Typhoon Songda on September 1, 2004 at 00:40 UTC. At the time this image was taken Songda was located approximately 740 km (460 miles) southeast of Iwo Jima, Japan and was moving towards the northwest at 28 km/hr (17 mph). Maximum sustained winds were near 232 km/hr (144 mph) with higher gusts to 278 km/hr (173 mph). The MODIS Rapid Response System provides this image at additional resolutions and formats. NASA image courtesy Jacques Descloitres, MODIS Land Rapid Response Team at NASA GSFC. |
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Water Turbidity in the Baham
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| Title |
Water Turbidity in the Bahamas |
| Description |
As Hurricane Frances moved across the Bahamas Islands, it churned ocean waters, bringing white carbonate sediment to the surface. The chalk-clouded waters are bright white after the storm, compared to the typical turquoise formed by the reflection of light off coral in the Great Bahama Bank through the Atlantic?s clear, shallow waters. Both of the above images were acquired by the Sea-viewing Wide Field of View Sensor (SeaWiFS [ http://seawifs.gsfc.nasa.gov/SEAWIFS.html ]). In the lower image, taken on September 1, 2004, Hurricane Frances is approaching the Bahamas from the east in the lower right corner. Frances is in the upper left corner of the top image, taken on September 6, after the storm had passed over the Bahamas. Image provided by the SeaWiFS [ http://seawifs.gsfc.nasa.gov/SEAWIFS.html ] Project, NASA/Goddard Space Flight Center, and ORBIMAGE |
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Water Turbidity in the Baham
…
| Title |
Water Turbidity in the Bahamas |
| Description |
As Hurricane Frances moved across the Bahamas Islands, it churned ocean waters, bringing white carbonate sediment to the surface. The chalk-clouded waters are bright white after the storm, compared to the typical turquoise formed by the reflection of light off coral in the Great Bahama Bank through the Atlantic?s clear, shallow waters. Both of the above images were acquired by the Sea-viewing Wide Field of View Sensor (SeaWiFS [ http://seawifs.gsfc.nasa.gov/SEAWIFS.html ]). In the lower image, taken on September 1, 2004, Hurricane Frances is approaching the Bahamas from the east in the lower right corner. Frances is in the upper left corner of the top image, taken on September 6, after the storm had passed over the Bahamas. Image provided by the SeaWiFS [ http://seawifs.gsfc.nasa.gov/SEAWIFS.html ] Project, NASA/Goddard Space Flight Center, and ORBIMAGE |
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Hebes Chasma
PIA06847
Sol (our sun)
Thermal Emission Imaging Sys
…
| Title |
Hebes Chasma |
| Original Caption Released with Image |
Released September 1, 2004The THEMIS Image of the Day will be exploring the nomenclature of Mars [ http://photojournal.jpl.nasa.gov/catalog/PIA06821 ] for the next three weeks. "Hebes Chasma" * "Chasma: "deep, elongated, steep-sided depression * "Hebes:" Goddess of youth, daughter of Zeus and Hera, cupbearer to the gods on Mount Olympus. After tripping and spilling the nectar, she was replaced by Ganymede. Hebes married Hercules after he was made a god. Hebes Chasma is part of a smaller chasma system located north of the main Valles Marineris chasma system. In this VIS image both walls of the canyon are visible. Note the layering near the top of the canyon walls, and the erosion of material. Nomenclature Fact of the Day: Major bright features on Titan will be named for sacred or enchanted places from legends, myths, stories, and poems from cultures around the world. Major dark features will be named for legendary or mythical primordial seas or enchanted waters. Other features will be named for deities of happiness, peace, and harmony. Image information: VIS instrument. Latitude -1.6, Longitude 283.7 East (76.3 West). 19 meter/pixel resolution. Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time. NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena. |
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Hebes Chasma
PIA06847
Sol (our sun)
Thermal Emission Imaging Sys
…
| Title |
Hebes Chasma |
| Original Caption Released with Image |
Released September 1, 2004The THEMIS Image of the Day will be exploring the nomenclature of Mars [ http://photojournal.jpl.nasa.gov/catalog/PIA06821 ] for the next three weeks. "Hebes Chasma" * "Chasma: "deep, elongated, steep-sided depression * "Hebes:" Goddess of youth, daughter of Zeus and Hera, cupbearer to the gods on Mount Olympus. After tripping and spilling the nectar, she was replaced by Ganymede. Hebes married Hercules after he was made a god. Hebes Chasma is part of a smaller chasma system located north of the main Valles Marineris chasma system. In this VIS image both walls of the canyon are visible. Note the layering near the top of the canyon walls, and the erosion of material. Nomenclature Fact of the Day: Major bright features on Titan will be named for sacred or enchanted places from legends, myths, stories, and poems from cultures around the world. Major dark features will be named for legendary or mythical primordial seas or enchanted waters. Other features will be named for deities of happiness, peace, and harmony. Image information: VIS instrument. Latitude -1.6, Longitude 283.7 East (76.3 West). 19 meter/pixel resolution. Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time. NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena. |
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