New Orleans Topography #2645


#2645 New Orleans Topography by JVPD
The city of New Orleans, situated on the southern shore of Lake Pontchartrain, is shown in this radar image from the Shuttle Radar Topography Mission (SRTM). In this image bright areas show regions of high radar reflectivity, such as from urban areas, and elevations have been coded in color using height data also from the SRTM mission. Dark green colors indicate low elevations, rising through yellow and tan, to white at the highest elevations. New Orleans is near the center of this scene, between the lake and the Mississippi River. The line spanning the lake is the Lake Pontchartrain Causeway, the world’s longest overwater highway bridge. Major portions of the city of New Orleans are actually below sea level, and although it is protected by levees and sea walls that are designed to protect against storm surges of 18 to 20 feet, flooding during storm surges associated with major hurricanes is a significant concern.

Photo Credit: NASA/JPL/NGA [0003-0612-3114-5303] by 0003

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Keywords

causeway, earth science, geography, jpl, lake pontchartrain, lake pontchartrain causeway, mississippi, mississippi delta, nasa, new orleans, radar image, topography