Bathymetry Data, 2014-2015, Gateway National Recreation Area

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.

Data and Resources

Field Value
accessLevel public
bureauCode {010:24}
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catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
dataQuality true
datagov_dedupe_retained 20211111031002
identifier NPS_DataStore_2278670
issued 2017-02-10
landingPage https://irma.nps.gov/DataStore/Reference/Profile/2278670
modified 2017-02-10
old-spatial {"type": "Polygon", "coordinates": [[[-74.14016, 40.3950768], [-74.14016, 40.65834], [-73.77641, 40.65834], [-73.77641, 40.3950768], [-74.14016, 40.3950768]]]}
programCode {010:118,010:119}
publisher National Park Service
references {https://irma.nps.gov/DataStore/Reference/Profile/2278670}
resource-type Dataset
source_datajson_identifier true
source_hash df04a3d1da23bd999fb6cbf218ce103f9c10d99d
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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 2014-01-01/2015-01-01
theme {"Geospatial Dataset"}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • bathymetry
  • benthic-ecology
  • benthic-habitat
  • benthic-habitat-mapping
  • ckan
  • gate
  • gateway-national-recreation-area
  • geo
  • geoss
  • hurricane-sandy
  • hxsandy
  • marine-geology
  • national
  • ncbn
  • new-jersey
  • north-america
  • northeast-coastal-and-barrier-network
  • sandy-hook
  • seafloor
  • seafloor-mapping
  • sediment
  • sidescan-sonar
  • submerged-habitat
  • submerged-habitat-mapping
  • united-states
isopen False
license_id notspecified
license_title License not specified
maintainer NPS IRMA Help
maintainer_email irma@nps.gov
metadata_created 2025-11-21T15:07:37.967632
metadata_modified 2025-11-21T15:07:37.967637
notes 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.
num_resources 6
num_tags 27
title Bathymetry Data, 2014-2015, Gateway National Recreation Area