🔬 Decision-Support Tool

HAB Risk Forecast

Real-time chlorophyll-a & dissolved oxygen analysis with 24h and 48h trend-based risk projections.

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⚠ HAB ALERT — One or more stations show elevated bloom risk. Immediate field verification recommended.

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Risk Score
Contributing Factors
    HorizonChl (µg/L)DO (mg/L)Risk

    * Linear extrapolation from last 6h slope. Uncertainty increases with horizon.

    Chlorophyll-a µg/L · last 24h + forecast
    Dissolved Oxygen mg/L · last 24h + forecast
    Reference
    Risk Threshold Values
    Chlorophyll-a (µg/L)
    < 5
    LOW
    5 – 20
    MODERATE
    20 – 50
    HIGH
    > 50
    BLOOM ALERT
    Dissolved Oxygen (mg/L)
    > 6
    NORMAL
    4 – 6
    STRESSED
    2 – 4
    HYPOXIC
    < 2
    CRITICAL
    ⚠ Disclaimer: This forecast page is a decision-support tool only. Risk levels are calculated using threshold scoring and linear trend extrapolation from recent sensor data — they are not validated HAB predictions. Factors such as wind, currents, salinity, and phytoplankton species composition are not included. All alerts should be verified by field sampling before operational decisions are made. Thresholds are based on general scientific literature for tropical coastal waters. Official HAB assessments require laboratory analysis by qualified marine biologists.