.

General Information

File Identifier:	gov.noaa.nmfs.inport:49740
Metadata Date Stamp:	2021-12
Organization:	OCM Partners
Organization Role:	resourceProvider

Identification Information

Title:	2000 USACE Bathymetric LiDAR: Hawaiian Islands
Dataset Language:	eng; US
Abstract:	These data were collected by the SHOALS (Scanning Hydrographic Operational Airborne Lidar Survey) system which consists of an airborne laser transmitter/receiver capable of measuring 400 soundings per second. The system operates from a deHavilland DHC-6 Twin Otter flying at altitudes between 200 and 400 meters with a ground speed of about 100 knots. The SHOALS system also includes a ground-based data processing system for calculating acurate horizontal position and water depth. Lidar is an acronym for LIght Detection And Ranging. The system operates by emitting a pulse of light that travels from an airborne platform to the water surface where a small portion of the laser energy is backscattered to the airborne receiver. The remaining energy at the water's surface propogates through the water column and reflects off the sea bottom and back to the airborne detector. The time difference between the surface return and the bottom return corresponds to water depth. The maximum depth the system is able to sense is related to the complex interaction of radiance of bottom material, incident sun angle and intensity, and the type and quantity of organics or sediments in the water column. As a rule-of-thumb, the SHOALS system should be capable of sensing bottom to depths equal to two or three times the Secchi depth. Original contact information: Contact Org: U.S. Army Corps of Engineers JALBCTX Phone: 251-690-3467
Data Type:	Vector

Browse Graphic

Browse Graphic URL:	https://coast.noaa.gov/htdata/lidar4_z/mllw/data/1458/supplemental/hi2000_usace_footprint.kmz
Browse Graphic Caption:	This graphic shows the lidar coverage for coastal regions of Oahu, Moloka'i, Lana'i and Hawaii (Big Island) in the state of Hawaii.
Browse Graphic Type:	kmz

Data Theme

Theme Topics:

Elevation and Derived Products

Spatial Domain

West Bounding Longitude:	-158.275
South Bounding Latitude:	18.90012
East Bounding Longitude:	-154.803683
North Bounding Latitude:	21.718898

Data Quality Information

Scope (quality information applies to):

Dataset

Contact Information

Organization:	NOAA Office for Coastal Management
Address:	2234 South Hobson Ave
City:	Charleston
State:	SC
Postal Code:	29405-2413
Email:	coastal.info@noaa.gov
Contact Website:	https://coast.noaa.gov
Telephone:	(843) 740-1202

Distribution Information

Distribution Link:	https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=1458
Distribution Link Function:	Download

Metadata Reference Information

/search/rest/document?f=html&id=%7B17CFE0E8-2602-4912-8C8F-6AAA6111294F%7D

This Geoportal was built using the Geoportal Server. Please read the Disclaimer and Privacy or Contact Us.