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Images of Haiti and Dominican Republic and Florida
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Examining Hurricane Frances
| Title |
Examining Hurricane Frances Cloud Structure |
| Abstract |
The MODIS instrument on Terra captures great details in the beautiful clouds surrounding Hurricane Frances. |
| Completed |
2004-09-02 |
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Hurricane Ernesto
| Title |
Hurricane Ernesto |
| Description |
Hurricane Ernesto formed in the eastern Caribbean Sea on August 24, 2006. Within a day, it had become organized enough to be classified as a tropical storm and get named as the fifth storm of the 2006 Atlantic hurricane season, Tropical Storm Ernesto. Ernesto built in power gradually as it moved westward and slightly north through the Caribbean Sea, just reaching hurricane strength on August 27 as it neared Hispaniola, the island on which the nations of Haiti and Dominican Republic are located. Ernesto was the first storm of the 2006 Atlantic season to reach hurricane strength. The storm's interaction with land robbed it of enough power to diminish it back to "tropical storm" status. Forecasts as of August 28 anticipate that Ernesto will remain at tropical storm status until after it crosses Cuba. If predictions made on August 28 hold true, the storm will travel most of the length of Cuba, then cross the Straits of Florida, possibly regaining enough power to become a hurricane again before coming ashore in southern Florida. This photo-like image was acquired by the Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov/ ] on the Terra [ http://terra.nasa.gov/ ] satellite on August 27, 2006, at 11:50 a.m. local time (15:50 UTC). At the time of this image, Hurricane Ernesto was a well-developed storm system, but its interactions with Hispaniola had started to distort the hurricane enough to rob it of a well-defined eye. According to the University of Hawaii's Tropical Storm Information Center, [ http://www.solar.ifa.hawaii.edu/Tropical/tropical.html ] Ernesto had sustained peak winds of around 110 kilometers per hour (65 miles per hour) at the time Aqua MODIS acquired these data. The high-resolution image provided above is provided at the full MODIS spatial resolution (level of detail) of 250 meters per pixel. The MODIS Rapid Response System provides this image at additional resolutions. [ http://rapidfire.sci.gsfc.nasa.gov/gallery/?2006239-0827/Ernesto.A2006239.1550 ] NASA image by Jeff Schmaltz, MODIS Rapid Response Team, [ http://rapidfire.sci.gsfc.nasa.gov ] Goddard Space Flight Center. |
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Hurricane Ernesto
| Title |
Hurricane Ernesto |
| Description |
Hurricane Ernesto formed in the eastern Caribbean Sea on August 24, 2006. Within a day, it had become organized enough to be classified as a tropical storm and get named as the fifth storm of the 2006 Atlantic hurricane season. Ernesto built in power gradually as it moved westward and slightly north through the Caribbean Sea, just reaching hurricane strength on August 27 as it neared Hispaniola, the island on which the nations of Haiti and Dominican Republic are located. Ernesto was the first storm of the 2006 Atlantic season to reach hurricane strength. The storm's interaction with land robbed it of enough power to diminish it back to "tropical storm" status, but predictions as of August 29 are that favorable conditions north of Cuba may allow it to re-intensify to hurricane status before it comes ashore in southern Florida. This photo-like image was acquired by the Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov/ ] on the Aqua [ http://aqua.nasa.gov/ ] satellite on August 28, 2006, at 2:00 p.m. local time (18:00 UTC). Tropical Storm Ernesto at the time of this image was a well-developed storm system, but its interactions with Hispaniola and Cuba had distorted the former hurricane, disrupting its shape enough to prevent the formation of a well-defined eye. The spiral-arm cloud structure was also not as distinct as it would be in a well-developed hurricane. According to the University of Hawaii's Tropical Storm Information Center, [ http://www.solar.ifa.hawaii.edu/Tropical/tropical.html ] Ernesto had sustained peak winds of around 65 kilometers per hour (40 miles per hour) at the time Aqua MODIS acquired these data. NASA image created by Jesse Allen, Earth Observatory, using data provided courtesy of the MODIS Rapid Response [ http://rapidfire.sci.gsfc.nasa.gov/ ] team. |
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Hurricane Ernesto
| Title |
Hurricane Ernesto |
| Description |
On Sunday August 27, 2006, Ernesto became the first storm of the Atlantic season to reach hurricane intensity. Ernesto did not maintain hurricane intensity for long, however, and was soon downgraded back to a tropical storm after grazing the southwestern tip of Hispaniola. Ernesto formed from an easterly wavea low-pressure ripple in the atmospherethat moved west across the Atlantic and into the Caribbean. After passing through the Windward Islands, the wave developed into the fifth tropical depression of the year on August 24. This series of images shows the development of the storm. The earliest image (bottom image in the trilogy) shows the storm in the southeastern Caribbean soon after it had formed. The image was taken 10:41 p.m. local time on August 24, 2006, (02:41 UTC on August 25) by the Tropical Rainfall Measuring Mission (TRMM) [ http://trmm.gsfc.nasa.gov/ ] satellite. Rain rates in the center swath are from the TRMM Precipitation Radar, while those in the outer swath are from the TRMM Microwave Imager. The rain rates are overlaid on infrared data from the TRMM Visible Infrared Scanner. Scattered areas of light (blue) to moderate (green) rain and little evidence of classic hurricane organization reveal that the system was still in its early stages of development. The storm developed into Tropical Storm Ernesto the next day, when the middle image in the series was taken. As the system tracked west-northwest, it encountered southwesterly winds at higher altitudes, a pattern that tends to shear off the tops of developing storms and to prevent them from gathering strength. These winds kept the storm from gaining much strength despite warm sea surface temperatures. Warm water is the engine that drives tropical storms. When this image was taken at 7:34 a.m. local time (11:34 UTC) on August 26, Ernesto was passing south of the Dominican Republic. At that time, intense areas of rain were present within the storm (red areas). However, Ernesto still did not have a visible eye, nor a particularly well-developed circulation, the spiraling band of clouds typically associated with tropical storms and hurricanes. At that time, the National Hurricane Center [ http://www.nhc.noaa.gov/ ], reported that Ernesto's maximum sustained winds were 74 kilometers per hour (46 miles per hour). Throughout the day, Ernesto continued to encounter high-altitude winds from the southwest that pushed the storm's top eastward, creating the elongated oval shape seen in the top image. This image was obtained at 10:24 p.m. local time on August 26 (02:24 UTC, August 27), when Ernesto was approaching Haiti. Although the center of the storm did not fall within the center of the TRMM instruments' fields of view, the rainfall pattern confirms that high-altitude winds were still confining the heaviest rains to the eastern side of the storm. At the time of this image, Ernesto's sustained winds were up slightly to 92 km/hr (58 mph). During the night of August 26, the shear across Ernesto finally eased off, and the storm responded by intensifying into a Category 1 hurricane. However, by this time, Ernesto was close to southwestern Haiti. Ernesto crossed the southwestern tip of Haiti on August 27, which caused it to weaken back to a tropical storm. Ernesto then continued northwest before making landfall in southeastern Cuba several hours later. As of August 29, Ernesto remained a somewhat disorganized tropical storm system. The storm was expected to reorganize as it left Cuba, but it was unclear if it would have enough time to develop back to hurricane strength before making a projected landfall in south Florida. The TRMM satellite was placed into service in November 1997. From its low-earth orbit, TRMM provides valuable images and information on storm systems around the tropics using a combination of passive microwave and active radar sensors, including the first precipitation radar in space. TRMM is a joint mission between NASA and the Japanese space agency, JAXA. Images produced by Hal Pierce (SSAI/NASA GSFC) and caption by Steve Lang (SSAI/NASA GSFC). |
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Hurricane Jeanne
| Title |
Hurricane Jeanne |
| Description |
After an eventful voyage through the Atlantic, Hurricane Jeanne struck the east coast of Florida on Sunday, September 26, 2004, as shown in the image above. The data in this image was collected by the Tropical Rainfall Measuring Mission (TRMM [ http://www.trmm.gsfc.nasa.gov/ ]) satellite at 09:47 UTC (4:47 AM EDT), when the storm was at Category 3 on the Saffir/Simpson scale, with sustained surface winds of 110 mph. In the image above, the black bar in the lower left corner is 70 miles long, north is up, and the shades of gray indicate the cloud height with white indicating the highest clouds. Color contours indicate the surface rainfall rate. The cloud height information comes from the satellite?s infrared instrument and the rain estimates from the satellite's passive microwave instrument. By combining the information from both instruments, we can see that, at the time of the satellite overflight, most of Florida was under dense overcast skies but heavy rain was falling only over one portion of Florida's east coast. Scientists are trying to improve their understanding of the complex relationship between clouds and rain. To have a better perspective on the structure of Hurricane Jeanne at landfall, it helps to consider the storm?s evolution over the past ten days. A composite image shows data from five of the TRMM satellite?s overflights of Hurricane Jeanne between September 17 and 26, 2004. The track of the storm is shown in red, based on data from NOAA?s National Hurricane Center [ http://www.nhc.noaa.gov/ ]. The tracks of the other three hurricanes that have struck Florida during the past two months (Hurricanes Charley, Frances, and Ivan) are shown in gray. Between September 17 and 18, Jeanne became disorganized due to its collision with the Dominican Republic and Haiti, where it left over 1000 people dead. On September 20, Jeanne reformed a tight eye, and by September 23, there was a symmetric ring of rain surrounding the eye, which suggests a well organized storm. Each of the five overflights mentioned above are shown in greater detail in this image sequence. On September 17, Jeanne was merely a tropical storm after having weakened as it passed over Puerto Rico. Nonetheless, Jeanne remained fairly well organized with heavy rain to the north and east of the low pressure center. The low pressure center had just made landfall over the Dominican Republic and was approaching Haiti. On September 18, Jeanne was so poorly organized that it is difficult to determine the center of the storm by looking at the cloud cover. Several days of favorable conditions in the Atlantic gave Jeanne a chance to regain hurricane strength winds. By September 26, when Jeanne struck central Florida, not only had its winds accelerated to 110 mph, but the area covered by clouds and heavy rain had increased. TRMM [ http://www.trmm.gsfc.nasa.gov/ ], is a joint mission between NASA and the Japanese Aerospace Exploration Agency (JAXA). Image and caption courtesy Owen Kelley, Steve Lang, and Jeff Halverson, NASA?s Tropical Rainfall Measuring Mission at Goddard Space Flight Center. |
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Hurricane Jeanne
| Title |
Hurricane Jeanne |
| Description |
After an eventful voyage through the Atlantic, Hurricane Jeanne struck the east coast of Florida on Sunday, September 26, 2004, as shown in the image above. The data in this image was collected by the Tropical Rainfall Measuring Mission (TRMM [ http://www.trmm.gsfc.nasa.gov/ ]) satellite at 09:47 UTC (4:47 AM EDT), when the storm was at Category 3 on the Saffir/Simpson scale, with sustained surface winds of 110 mph. In the image above, the black bar in the lower left corner is 70 miles long, north is up, and the shades of gray indicate the cloud height with white indicating the highest clouds. Color contours indicate the surface rainfall rate. The cloud height information comes from the satellite?s infrared instrument and the rain estimates from the satellite's passive microwave instrument. By combining the information from both instruments, we can see that, at the time of the satellite overflight, most of Florida was under dense overcast skies but heavy rain was falling only over one portion of Florida's east coast. Scientists are trying to improve their understanding of the complex relationship between clouds and rain. To have a better perspective on the structure of Hurricane Jeanne at landfall, it helps to consider the storm?s evolution over the past ten days. A composite image shows data from five of the TRMM satellite?s overflights of Hurricane Jeanne between September 17 and 26, 2004. The track of the storm is shown in red, based on data from NOAA?s National Hurricane Center [ http://www.nhc.noaa.gov/ ]. The tracks of the other three hurricanes that have struck Florida during the past two months (Hurricanes Charley, Frances, and Ivan) are shown in gray. Between September 17 and 18, Jeanne became disorganized due to its collision with the Dominican Republic and Haiti, where it left over 1000 people dead. On September 20, Jeanne reformed a tight eye, and by September 23, there was a symmetric ring of rain surrounding the eye, which suggests a well organized storm. Each of the five overflights mentioned above are shown in greater detail in this image sequence. On September 17, Jeanne was merely a tropical storm after having weakened as it passed over Puerto Rico. Nonetheless, Jeanne remained fairly well organized with heavy rain to the north and east of the low pressure center. The low pressure center had just made landfall over the Dominican Republic and was approaching Haiti. On September 18, Jeanne was so poorly organized that it is difficult to determine the center of the storm by looking at the cloud cover. Several days of favorable conditions in the Atlantic gave Jeanne a chance to regain hurricane strength winds. By September 26, when Jeanne struck central Florida, not only had its winds accelerated to 110 mph, but the area covered by clouds and heavy rain had increased. TRMM [ http://www.trmm.gsfc.nasa.gov/ ], is a joint mission between NASA and the Japanese Aerospace Exploration Agency (JAXA). Image and caption courtesy Owen Kelley, Steve Lang, and Jeff Halverson, NASA?s Tropical Rainfall Measuring Mission at Goddard Space Flight Center. |
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Hurricane Jeanne
| Title |
Hurricane Jeanne |
| Description |
After an eventful voyage through the Atlantic, Hurricane Jeanne struck the east coast of Florida on Sunday, September 26, 2004, as shown in the image above. The data in this image was collected by the Tropical Rainfall Measuring Mission (TRMM [ http://www.trmm.gsfc.nasa.gov/ ]) satellite at 09:47 UTC (4:47 AM EDT), when the storm was at Category 3 on the Saffir/Simpson scale, with sustained surface winds of 110 mph. In the image above, the black bar in the lower left corner is 70 miles long, north is up, and the shades of gray indicate the cloud height with white indicating the highest clouds. Color contours indicate the surface rainfall rate. The cloud height information comes from the satellite?s infrared instrument and the rain estimates from the satellite's passive microwave instrument. By combining the information from both instruments, we can see that, at the time of the satellite overflight, most of Florida was under dense overcast skies but heavy rain was falling only over one portion of Florida's east coast. Scientists are trying to improve their understanding of the complex relationship between clouds and rain. To have a better perspective on the structure of Hurricane Jeanne at landfall, it helps to consider the storm?s evolution over the past ten days. A composite image shows data from five of the TRMM satellite?s overflights of Hurricane Jeanne between September 17 and 26, 2004. The track of the storm is shown in red, based on data from NOAA?s National Hurricane Center [ http://www.nhc.noaa.gov/ ]. The tracks of the other three hurricanes that have struck Florida during the past two months (Hurricanes Charley, Frances, and Ivan) are shown in gray. Between September 17 and 18, Jeanne became disorganized due to its collision with the Dominican Republic and Haiti, where it left over 1000 people dead. On September 20, Jeanne reformed a tight eye, and by September 23, there was a symmetric ring of rain surrounding the eye, which suggests a well organized storm. Each of the five overflights mentioned above are shown in greater detail in this image sequence. On September 17, Jeanne was merely a tropical storm after having weakened as it passed over Puerto Rico. Nonetheless, Jeanne remained fairly well organized with heavy rain to the north and east of the low pressure center. The low pressure center had just made landfall over the Dominican Republic and was approaching Haiti. On September 18, Jeanne was so poorly organized that it is difficult to determine the center of the storm by looking at the cloud cover. Several days of favorable conditions in the Atlantic gave Jeanne a chance to regain hurricane strength winds. By September 26, when Jeanne struck central Florida, not only had its winds accelerated to 110 mph, but the area covered by clouds and heavy rain had increased. TRMM [ http://www.trmm.gsfc.nasa.gov/ ], is a joint mission between NASA and the Japanese Aerospace Exploration Agency (JAXA). Image and caption courtesy Owen Kelley, Steve Lang, and Jeff Halverson, NASA?s Tropical Rainfall Measuring Mission at Goddard Space Flight Center. |
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Hurricane Jeanne Cloud Heigh
nasa, nasaimageofthedaygalle
After causing widespread des
PIA04368
| mediatype |
IMAGE |
| mediatype |
image |
| date |
09/24/04 |
| creator |
NASA -- Image courtesy NASA/GSFC/LaRC/JPL, www-misr.jpl.nasa.gov/ MISR Team. Text by Clare Averill (Raytheon/JPL). |
| identifier |
PIA04368 |
|
Hurricane Jeanne: Image of t
nasa, nasaimageofthedaygalle
After an eventful voyage thr
Jeanne_TRM_2004270
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2004-09-26 |
| creator |
NASA -- Image and caption courtesy Owen Kelley, Steve Lang, and Jeff Halverson, NASA's Tropical Rainfall Measuring Mission at Goddard Space Flight Center. |
| identifier |
Jeanne_TRM_2004270 |
|
Hurricane Ernesto: Natural H
nasa, nasanaturalhazards
Hurricane Ernesto formed in
ernesto_tmo_2006239
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2006-08-27 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
ernesto_tmo_2006239 |
|
Tropical Storm Ernesto: Imag
nasa, nasaimageofthedaygalle
On Sunday August 27, 2006, E
ernesto_trmm_2006239
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2006-08-24 |
| creator |
NASA -- Images produced by Hal Pierce (SSAI/NASA GSFC) and caption by Steve Lang (SSAI/NASA GSFC). |
| identifier |
ernesto_trmm_2006239 |
|
Hurricane Jeanne Cloud Heigh
PIA04368
Sol (our sun)
Multi-angle Imaging SpectroR
| Title |
Hurricane Jeanne Cloud Height and Motion |
| Original Caption Released with Image |
After causing widespread destruction on Puerto Rico, Haiti and the Dominican Republic, Hurricane Jeanne was weakened to Tropical Storm status for several days before it regained strength over the Bahamas as a Category 2 hurricane. When Jeanne made landfall in U.S. territory on September 26 it was the fourth major hurricane of the 2004 Atlantic hurricane season to strike Florida. These visualizations of Hurricane Jeanne on September 24 were captured by NASA's Multi-angle Imaging SpectroRadiometer (MISR). The still panels include a natural color view from MISR's 26-degree forward-viewing camera (left) and a two dimensional map of cloud-top heights (right). In addition, a "multi-angle fly-over" is provided as an animation using views from all nine MISR cameras. The nine camera views which make up the animation have been processed to give an approximate perspective view. The animation makes visible the relative heights of clouds within the scene. Some of the real cloud motion over the seven minutes during which all nine MISR cameras observed the scene are also indicated by the animation. The cloud height map was produced by automated computer recognition of the distinctive spatial features between images acquired at different view angles. Two-dimensional maps of cloud height such as these offer an opportunity to compare simulated cloud fields against actual hurricane observations. Results indicate that clouds within Jeanne had attained altitudes of more than 16 kilometers above sea level. The height field pictured here is uncorrected for the effects of cloud motion. Wind-corrected heights have higher accuracy but sparser spatial coverage. The Multi-angle Imaging SpectroRadiometer observes the daylit Earth continuously and every 9 days views the entire globe between 82° north and 82° south latitude. These data products were generated from a portion of the imagery acquired during Terra orbit 25372. The still image panels cover an area of about 400 kilometers x 884 kilometers, and utilize data from within blocks 68 to 71 and within World Reference System-2 path 10. MISR was built and is managed by NASA's Jet Propulsion Laboratory, Pasadena, CA, for NASA's Office of Earth Science, Washington, DC. The Terra satellite is managed by NASA's Goddard Space Flight Center, Greenbelt, MD. JPL is a division of the California Institute of Technolog |
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