Hydrologic enforcement of lidar DEMs

Sandra K. Poppenga; Bruce B. Worstell; Jeffrey J. Danielson; John Brock; Gayla A. Evans; H. Karl Heidemann

doi:10.3133/fs20143051

Hydrologic enforcement of lidar DEMs

Fact Sheet 2014-3051

Coastal and Marine Geology Program

By: Sandra K. Poppenga, Bruce B. Worstell, Jeffrey J. Danielson, John Brock, Gayla A. Evans, and H. Karl Heidemann

https://doi.org/10.3133/fs20143051

Links

More information: USGS Index Page
Document: Report
Download citation as: RIS | Dublin Core

Abstract

Hydrologic-enforcement (hydro-enforcement) of light detection and ranging (lidar)-derived digital elevation models (DEMs) modifies the elevations of artificial impediments (such as road fills or railroad grades) to simulate how man-made drainage structures such as culverts or bridges allow continuous downslope flow. Lidar-derived DEMs contain an extremely high level of topographic detail; thus, hydro-enforced lidar-derived DEMs are essential to the U.S. Geological Survey (USGS) for complex modeling of riverine flow. The USGS Coastal and Marine Geology Program (CMGP) is integrating hydro-enforced lidar-derived DEMs (land elevation) and lidar-derived bathymetry (water depth) to enhance storm surge modeling in vulnerable coastal zones.

Additional publication details
Publication type	Report
Publication Subtype	USGS Numbered Series
Title	Hydrologic enforcement of lidar DEMs
Series title	Fact Sheet
Series number	2014-3051
DOI	10.3133/fs20143051
Year Published	2014
Language	English
Publisher	U.S. Geological Survey
Publisher location	Reston, VA
Contributing office(s)	Earth Resources Observation and Science (EROS) Center
Description	4 p.
Online Only (Y/N)	Y
Google Analytic Metrics	Metrics page