AU_AADC provides a dataset of krill swarm characteristics derived from statistical models. It includes estimates of internal swarm density and depth from a 2006 survey and broader density estimates for February across a decade (2001-2010). The data covers the East Antarctic region between 30-120 degrees East longitude.
Use Cases
- Model krill swarm density as a function of environmental data like sea surface temperature or chlorophyll-a.
- Analyze the relationship between estimated internal swarm depth and geographic location (longitude).
- Investigate interannual variability in February swarm density across the 2001-2010 time series.
- Validate acoustic observation methods by comparing model-predicted swarm characteristics with field data.
Strengths
- Decadal time series for February density estimates spanning 2001-2010.
- Spatial coverage includes a focused study region (60-80°E) and a broader East Antarctic region (30-120°E).
- Integrates multiple data sources: underway acoustic observations and environmental data.
Limitations
- Data is temporally stale, with the last update in February 2010.
- Primary survey data is from a single month (February 2006), limiting seasonal understanding.
- Specific row counts, sample sizes, and column details are unknown.
Provenance
- Source
- AU_AADC (Australian Antarctic Data Centre) via NASA Earthdata.
- Collection Method
- Statistical models based on underway acoustic observations combined with environmental data.
- Time Range
- Primary survey: February 2006. Density time series: February 2001-2010.
- Freshness
- Static dataset last updated in 2010.
- Geography
- East Antarctic region, specifically 60-80 degrees E (study region) and 30-120 degrees E (broader region).