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1m Depth Contours, 2015, Gateway National Recreation Area

Metadata Updated: February 12, 2024

1m depth contours, derived from Sandy Hook bayside bathymetry, 1m resolution raster. The side scan sonar survey was done simultaneously with the bathymetry swath survey and used an EdgeTech Model 4125 Towfish bow-mounted from Lookdown at 400 and 900 kHz. The 4125 Towfish utilizes EdgeTech’s Full Spectrum CHIRP technology to produce higher resolution images than a non-CHIRP system. EdgeTech Discovery Software was used to acquire the side scan sonar data using the JSF format at a resolution of about 2.3 cm. All JSF files collected using EdgeTech’s Discover Software were processed using John Gann’s Chesapeake Technology SonarWiz5. Dimensions of contacts should be considered accurate to +/- 30% of the measured dimensions. This system also records the direct arrival intensity data.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Created Date May 31, 2023
Metadata Updated Date February 12, 2024

Metadata Source

Harvested from DOI EDI

Additional Metadata

Resource Type Dataset
Metadata Created Date May 31, 2023
Metadata Updated Date February 12, 2024
Publisher National Park Service
Identifier NPS_DataStore_2278682
Data First Published 2017-02-10T12:00:00Z
Data Last Modified 2017-02-10
Category geospatial
Public Access Level public
Bureau Code 010:24
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Data Quality True
Harvest Object Id e4f369ec-b426-415c-b406-098bcb8fcfde
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Homepage URL
Metadata Type geospatial
Old Spatial -74.14016,40.3950768,-73.77641,40.65834
Program Code 010:118, 010:119
Publisher Hierarchy White House > U.S. Department of the Interior > National Park Service
Related Documents
Source Datajson Identifier True
Source Hash 97d8628c50bafc00c49b6774f0ba752600a14967eaaa72319c1f78fd2f064039
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -74.14016, 40.3950768, -74.14016, 40.65834, -73.77641, 40.65834, -73.77641, 40.3950768, -74.14016, 40.3950768}
Temporal 2015-07-01T12:00:00Z/2015-08-01T12:00:00Z

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