Mapping Extent for Sidescan Sonar and Bathymetry Data, 2014-2015, Gateway National Recreation Area

Polygon shapefile showing the coverage area of the acoustic mapping at Sandy Hook, NJ between July 2015 and August 2015. 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}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
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_2278676
issued 2017-02-10
landingPage https://irma.nps.gov/DataStore/Reference/Profile/2278676
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/2278676}
resource-type Dataset
source_datajson_identifier true
source_hash 2ffa70e0470999b11b639459c82b2d49b59a2534
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 2015-07-01/2015-08-01
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 2025-11-22T02:50:56.363327
metadata_modified 2025-11-22T02:50:56.363331
notes Polygon shapefile showing the coverage area of the acoustic mapping at Sandy Hook, NJ between July 2015 and August 2015. 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 1
num_tags 27
title Mapping Extent for Sidescan Sonar and Bathymetry Data, 2014-2015, Gateway National Recreation Area