US Army Corps of Engineers
Engineer Research and Development Center

Coastal Zone Mapping and Imaging Lidar

Published Nov. 21, 2012
Coastal Zone Mapping and Imaging Lidar

Coastal Zone Mapping and Imaging Lidar

Description

The Coastal Zone Mapping and Imaging Lidar (CZMIL) is a new sensor development effort within the National Coastal Mapping Program (NCMP). During the past 4 years, the NCMP has produced high-quality, high-resolution information products from airborne lidar bathymetry, topography and accompanying RGB and hyperspectral imagery data: 1-m bathy/topo rasters, 1-m bare earth rasters, 20-cm RGB image mosaics, 1-m, 36-band hyperspectral image mosaics, 1-m landcover classifications, 2-m bottom reflectance images and shoreline vectors. All of these products have been generated from data collected by airborne lidar bathymeters designed to measure primarily water depth, and using available COTS software packages in a processing flow that proved cumbersome by challenging the throughput of the programs, or by applying them in a non-standard manner to achieve desired results.

Issue

Priority areas for the USACE, like the surf zone and turbid waters, are often confounded by current lidar sensors. Advances in processing of bathymetric lidar signals and in the fusion of these signals with ancillary sensor data like hyperspectral imagery have revealed opportunities to improve current hardware to support the more advanced environmental applications of the data. Current lidar sensor technology is a decade old and any new design will benefit from general advances in hardware components.

Users

USACE District engineers and scientists, JALBTCX Partner agencies, State and local sponsors, Coastal Zone Managers and the public.

Products

An integrated lidar and imagery sensor suite and software package designed for highly automated generation of physical and environmental information products for the coastal zone, including those currently generated for the NCMP, along with water column attenuation, chlorophyll concentration, CDOM concentration and automated bottom classification.

Benefits

The new sensor suite and accompanying software will improve the speed of data and product delivery, the quality of information products derived from fused lidar and imagery datasets and the performance of the lidar sensor in problematic areas like turbid water and in the surf zone.

For more information about CZMIL, visit CHL online or the Joint Airborne Lidar Bathymetry Technical Center of Expertise.

ERDC Point of Contact

Questions about CZMIL?
Contact: Jennifer M. Wozencraft, Principal Investigator
Email: Jennifer.M.Wozencraft@usace.army.mil
Phone: (228) 252-1101