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Pasadena CA (JPL) Jun 30, 2010 Tropical Storm Alex, the first storm of the 2010 Atlantic hurricane season, continues to pick up steam as it crosses the western Gulf of Mexico. According to NOAA's National Hurricane Center, Alex is expected to approach the coast of northeast Mexico and southern Texas on Wed., June 30, and make landfall Wednesday night. The storm is expected to reach a peak intensity of 80 to 85 knots (92 to 98 miles per hour) before landfall, which would make it either a strong Category One or weak Category Two hurricane. Alex's tropical storm-force winds currently extend outward up to 175 miles (280 kilometers) from its center. The storm is expected to produce total rainfall accumulations of 15 to 30 centimeters (6 to 12 inches) over parts of northeastern Mexico and southern Texas, with isolated amounts up to 51 centimeters (20 inches). A storm surge of about 1 to 1.5 meters (3 to 5 feet) above ground level is forecast along the immediate coast near and to the north of where Alex makes landfall. The JPL-built and- managed Atmospheric Infrared Sounder (AIRS) instrument on NASA's Aqua satellite captured this infrared image of Tropical Storm Alex at 3:29 p.m. EDT (19:29 UTC) on June 29, 2010. The AIRS data create an accurate 3-D map of atmospheric temperature, water vapor and clouds, all of which are helpful to forecasters. The image shows the temperature of Alex's cloud tops or the surface of Earth in cloud-free regions. The coldest cloud-top temperatures appear in purple, indicating towering cold clouds and heavy precipitation. The infrared signal of AIRS does not penetrate through clouds. Where there are no clouds, AIRS reads the infrared signal from the surface of the ocean waters, revealing warmer temperatures in orange and red.
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TanDEM-X Sends Its First Images In Record TimeBonn, Germany (SPX) Jun 28, 2010 Already, with its first image acquisitions, TanDEM-X (TerraSAR-X add-on for Digital Elevation Measurement) has surpassed its twin satellite, TerraSAR-X. On 24 June 2010, only 3 days and 14 hours into the mission, the satellite sent its first image data back to Earth. The transmission was received by the German Aerospace Center ground station at Neustrelitz and processed to produce images. ... read more |
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