More than 170 Sea Surface Temperature and Chlorophyll-a images from July 2002 to December 2016 were used to map a seasonal upwelling system along Australia's southern coast. The study, presented at the 2017 Australian Marine Science Association Conference, found the upwelling influences over 10,000 km2 during intensive events and exhibits strong inter-annual variation. The data has a spatial resolution of approximately 1 kilometer.
Use Cases
- Analyze seasonal patterns of the Bonney Coast upwelling based on the identified occurrence between November and April.
- Investigate inter-annual variability in upwelling intensity based on the described variation between summers.
- Model the relationship between sea surface temperature anomalies and chlorophyll-a concentrations based on the extracted signatures.
- Study the ecological importance of upwelling events for species like krill and blue whales based on the description of marine life aggregation.
Strengths
- More than 170 satellite images provide a multi-year time series from 2002 to 2016.
- High spatial resolution of approximately 1 kilometer allows for detailed mapping.
- Analysis quantifies upwelling extent, with intensive events influencing over 10,000 km2.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Data may reflect temporal bias inherent to the MODIS sensor's operational period.
Provenance
- Source
- Australian Ocean Data Network via data_gov_au
- Collection Method
- Satellite remote sensing using MODIS data, processed with Topographic Position Index and image segmentation techniques.
- Time Range
- July 2002 to December 2016
- Freshness
- Last updated 2026-06-23 02:21:10.298539; freshness should be verified.
- Geography
- Bonney Coast, Australian southern shelves from Cape Jaffa (SA) to Cape Nelson (VIC)