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1m Depth Contours, 2015, Gateway National Recreation Area
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.
Complete Metadata
| @id | http://datainventory.doi.gov/id/dataset/480827f3e7a8b30794b118b46f489581 |
|---|---|
| bureauCode |
[ "010:24" ] |
| dataQuality | true |
| identifier | NPS_DataStore_2278682 |
| issued | 2017-02-10T12:00:00Z |
| landingPage | https://irma.nps.gov/DataStore/Reference/Profile/2278682 |
| programCode |
[ "010:118", "010:119" ] |
| references |
[ "https://irma.nps.gov/DataStore/Reference/Profile/2278682" ] |
| spatial | -74.14016,40.3950768,-73.77641,40.65834 |
| temporal | 2015-07-01T12:00:00Z/2015-08-01T12:00:00Z |
| theme |
[ "geospatial" ] |
