National OCIMS (Harmful Algal Bloom Viewer




Data provided by:National Oceans and Coastal Information Management System (OCIMS) South Africa
Data accessibility:visualization of data (e.g. web GIS or real time monitoring)
Link to the data:
Requirements:

Web-browser and Java

File type:webmap
Data type:hazard specific data
Hazard:Efflorescences algales nuisibles
Disaster cycle phase:Disaster Risk Management, Response, Recovery
Space-based information:Webmap of Algal bloom detections, CHl-A from MODIS nFLH, Sea Surface Temperature (Odyssea), Chlorophyll-A from Sentinel OLCI.

The HAB Decision Support Tool (DeST) provides a capability for monitoring and assessing risk of HAB events for the South African coastal area to approximately 50km offshore. Risk assessment and monitoring is based on quantified understanding of bloom dynamics (Pitcher & Nelson, 2006), hypoxic impacts (Pitcher et al 2014), and earth observation monitoring capabilities (Bernard et al 2006). Maps of various ocean colour-derived phytoplankton biomass proxies, sea surface temperature, and ocean state (wind, current, sea state) are used to provide information on the presence and movement of blooms, and extracted time series of these data provide a "virtual buoy" capability giving a multi-parameter risk index.
Satellites and Sensors:Aqua, Sentinel-3A
Temporal coverage:Near-real time
Technical Specifications:n/a
Costs:free
Contact:Forum
Tutorials on the use of data:n/a
Restrictions/ Citation of the dataset:

OCIMS

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