Acoustic backscatter, hydrographic, and net tow data were collected in the waters surrounding the South Shetland Islands and the Antarctic Peninsula to assess salp abundances. The project aimed to develop physics-based acoustic scattering models to discriminate salp blooms from krill swarms. Data was collected by AMD_USAPDC and last updated in August 2013.
Use Cases
- Model salp biomass from acoustic backscatter data using physics-based scattering models.
- Compare salp abundance estimates from net tow data with concurrent acoustic volume backscattering data.
- Analyze relationships between salp material properties like density and sound speed and environmental factors.
- Discriminate acoustic scattering signatures of salp blooms from krill swarms using multi-frequency echosounder data.
Strengths
- Data integrates multiple collection methods: hydrographic, net tow, and acoustic backscatter.
- Research includes development and validation of a physics-based acoustic scattering model for salps.
Limitations
- Dataset size, row count, and specific file formats are unknown.
- Data is from 2013 and may not reflect current ocean conditions.
- Geographic coverage is limited to the South Shetland Islands and Antarctic Peninsula.
Provenance
- Source
- nasa_earthdata
- Collection Method
- Shipboard collection of hydrographic, net tow, and acoustic echosounder data, alongside experimental manipulations.
- Time Range
- null
- Freshness
- null
- Geography
- Southern Ocean, specifically waters surrounding the South Shetland Islands and the Antarctic Peninsula.