Digital Elevation Model of Delaware · Digital Elevation Model of Delaware created from LiDAR data...
Transcript of Digital Elevation Model of Delaware · Digital Elevation Model of Delaware created from LiDAR data...
elevationabovesea level (ft)
0 - 56 - 10
11 - 1516 - 20
21 - 2526 - 30
31 - 35
36 - 4041 - 45
46 - 5051 - 60
61 - 7071 - 80
81 - 9091 - 100101 - 150151 - 200201 - 250
251 - 300301 - 350351 - 400
401 - 450countyboundary
Miles
100
Kilometers
100
Scale 1:400,000
Pennsylvania
Maryland
Maryland
Delaware Bay
Atlantic Ocean
New Jersey
Digital Elevation Model of Delaware created from LiDAR data collected in Winter 2013/Spring 2014.Lidar Task Order Number: G13PD00884 USGS Contract: G10PC00025
The Delaware Geological Survey led a multi-agency, state and federal effort(including DelDOT, DNREC, USGS, and NOAA) to secure funds from theHurricane Sandy Relief appropriation to collect new, high-quality LiDARfor the entire state of Delaware. LiDAR, which stands for Light Detection and Ranging, is a remote sensing method that uses light in the form of a pulsed laser to measure distances from a source to a target object. Typically, a LiDAR device is attached to the bottom of a plane and is pointed at the ground. The time it takes the pulse to return represents the distance it traveled and can be used to generate precise, three-dimensional information about the landscape below and its surface characteristics.
Shown here is an elevation dataset derived from the LiDAR data that will help to enhance watershed modeling for predicting stream flooding, produce up-to-date topographic maps, predict and assess the impacts of storm surge and sea-level rise, improve our geologic and land-use mapping, measure changes in marshes and wetlands, and much more.
Delaware Geological SurveyUniversity of DelawareDavid R. Wunsch, State Geologist
Special Publication No. 28By Lillian T. Wang
2017
Digital Elevation Model of Delaware