2012 USGS NRCS Somerset and Wicomico Lidar eng Dataset EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION EARTH SCIENCE > OCEANS > COASTAL PROCESSES > COASTAL ELEVATION elevation CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA VERTICAL LOCATION > LAND SURFACE LIDAR > Light Detection and Ranging Airplane > Airplane beach erosion Aerial Cartographics o America, Inc. collected LiDAR for over 681 square miles in Accomack, Dorchester, Somerset, Sussex, Wicomico, and Worchester Counties in Maryland, Deleware and Virginia. The nominal pulse spacing for this project was no greater than 0.7 meters. This project was collected with a Riegl LMS-Q680i Full Waveform LiDAR Sensor which collects an intensity value, GPS Week Time, Flightline and echo number attributes for each discrete pulse . Dewberry used proprietary procedures to classify the LAS into an initial ground surface. Dewberry used proprietary procedures to classify the LAS and then performed manual classifications according to project specifications: 1-Unclassified, 2-Ground, 7-Noise, 9-Water, and 10-Ignored Ground due to breakline proximity. Dewberry produced 3D breaklines and combined these with the final LiDAR data to produce seamless DTMs, DSMs and hydro flattened DEMs, for 833 tiles (1500 meters x 1500 meters) that cover the project area. OCM Partners OCM Partners https://www.fisheries.noaa.gov/inport/item/51961 https://www.fisheries.noaa.gov/inport/item/49401 northlimit=38.565659; eastlimit=-75.441299; southlimit=37.90508; westlimit=-76.07223; start=2012-02-14; end=2012-03-13; None 2012-07