2007 EARTH SCIENCE VIDEOTAPES |
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Tape Title | Record ID | Date Produced | TRT: |
Synopsis |
| NASA SATELLITE HELPS QUANTIFY HURRICANE KATRINA'S "CARBON FOOTPRINT" | G07-074 | 11/05/07 | 06:28 | Using data from NASA's Landsat and Terra satellites, along with ecological field investigations and statistical analyses, a group of researchers has quantified losses to Gulf Coast forests inflicted by Hurricane Katrina. The results, published in the 2007 November 16th issue of Science, estimate that 320 million large trees were killed or severely damaged by the storm. The paper also assesses the potential feedback effect this loss might have on elevating atmospheric levels of carbon dioxide.
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TAPE CONTENTS: |
| ITEM (1): Landsat Images Reveal Gulf Coast Vegetation Loss - These Landsat images show areas that lost large amounts of vegetation when Hurricane Katrina struck land in late August of 2005. The first image is a true color rendering of the New Orleans area with numbered yellow boxes delineating areas of high vegetation loss. The numbers indicate the order of the before and after comparisons that follow. In these three sets, the change from bright green to bright red indicates where vegetation was lost. Purple parts of the images represent urban areas.
Courtesy: NASA/Tulane University
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| ITEM (2): Aerial Photograph Reveals Damaged Gulf Coast Forests - This aerial photograph from late 2005 reveals damaged forests in the Pearl River Basin along the shared border of Louisiana and Mississippi. Resistant cypress and tupelo trees surround downed and dead hardwood forest trees, including varieties of oak, sweetgum, and maple. This photograph is credited to Louisiana State University Hurricane Katrina and Rita Cooperative Clearinghouse.
Courtesy: NASA
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| ITEM (3): Hurricane Katrina as seen by NASA and NOAA Satellites - The 2005 hurricane season will long be remembered for the devastation of hurricane Katrina. Several NASA satellites provided critical insights into Katrina's storm structure and strength throughout the hurricane's life cycle, aiding forecasters and emergency managers. In the aftermath, data from satellites and instruments on NASA planes became useful in recovery efforts, damage assessments, and analyses of the storm's environmental impacts.
a) Hurricane Katrina as seen by the GOES-12 satellite from August 23-30, 2005.
b) This image shows the sea surface temperatures for the Caribbean from August 23-30, 2005. Yellow, orange, and red colors represent sea surface temperatures of 82 degrees Fahrenheit or above -- the threshold temperature needed for hurricanes to strengthen.
3) Cloud structures, known as "hot towers" were spotted on August 28, 2005 by NASA satellites just before Hurricane Katrina intensified into a class 5 hurricane.
Courtesy: NASA/NOAA
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| ITEM (4): NASA's Landsat and Terra Satellites - Both the Landsat 7 satellite and the Terra satellite collect moderate-resolution optical images of land surfaces all over the globe. The following are animations of these two remote sensing satellites.
a) LANDSAT Satellite
b) TERRA Satellite
Courtesy: NASA
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