Frequently Asked Questions Many of the questions we receive about our Topographic Change Mapping project are similar in nature. Many of the responses will direct you to contact the NOAA Coastal Services Center directly for more detailed answers. Check the maps on the Topographic Change Mapping home page to see if we have already collected data in your area of interest. While the topography of inland areas is certainly interesting, it is not within our purview.
Initial processing takes a minimum of six weeks.
Project partners and collaborators then have access to the data for a period of approximately six months. Data will be generally available to the public approximately six months after collection. It depends on the width of the beach in question. These four passes produce a 300 to 500-meter wide swath. We don't fly very far over the water generally because we don't penetrate the water surface.