2003 to 2014 survey data, supplemented in 2018, provides multibeam bathymetry, acoustic backscatter, and LiDAR reflectance for Long Island Sound. The dataset consists of processed 32-bit GeoTIFF rasters representing water depth and seafloor acoustic intensity. It was collected by NOAA ships and partners, integrated by SUNY Stony Brook SoMAS, and published by NOAA NCEI.
Use Cases
- Model seafloor topography and slope using bathymetry raster values.
- Classify seafloor sediment types by analyzing acoustic backscatter intensity patterns.
- Create habitat maps by correlating bathymetry depth with LiDAR reflectance data.
- Assess changes in coastal morphology by comparing 2003-2014 survey data with 2018 resurvey areas.
Strengths
- Data spans over a decade of surveys from 2003 to 2014 with targeted updates in 2018.
- Integrates multiple sensor types (multibeam sonar and LiDAR) into seamless 32-bit raster products.
- Surveys conducted by authoritative agencies including NOAA and SUNY Stony Brook.
Limitations
- Specific spatial resolution, file sizes, and total area coverage are not provided.
- Data is geographically limited to the Long Island Sound priority areas of interest.
Provenance
- Source
- NOAA National Centers for Environmental Information (NCEI).
- Collection Method
- Data gathered via ship-based multibeam sonar (Reson 7125, Kongsberg EM2040c) and LiDAR systems, processed with CARIS, ArcGIS, Fledermaus, and PCI Geomatica.
- Time Range
- 2003 to 2014, with supplemental surveying in 2018.
- Freshness
- Last updated in July 2018.
- Geography
- Long Island Sound Benthic Habitat Priority Areas of Interest.