A wave-based model mapped open-coast mangrove suitability
Researchers tested a process-based mangrove presence model against 20 years of hindcast wave data at 400 coastal sites worldwide. The model reached 78.2% accuracy and identified low-wave windows that may allow mangroves to establish. The study suggests modest changes in wave forcing could shift suitable sites, but it does not provide a guaranteed forecast for an individual coast.
The record ends here. Everything below this line is invented.
What if the right wave window mattered more than the right piece of coast?
Part one
Small Window
At the first low tide, Kemi laid three rows of mangrove seedlings along the seawall. Her tablet marked each pocket with a wave score, but she still watched the water arrive. The model had narrowed the coast to a set of openings; the sea kept changing the terms.
The northern row sat behind an old ferry pier and received calmer water. The southern row had more light and less silt, but its wave gauge had begun to rise. Kemi's father had tied his fishing skiff to the pier for thirty years. The planners wanted the seedlings placed where they would survive, even if that meant closing the channel he used to reach open water.
The latest forecast gave the northern pocket its best chance in weeks. Kemi could seed it now and block the ferry approach with a temporary boom, or wait for another tide and risk losing the whole shipment. Her father held the mooring line from the skiff, watching her set the first tray. She turned the tablet face down and planted the seedlings along the pier's outer edge. The next wave lifted them, then held them upright.
What’s real
- The model was tested against 20 years of wave data.
- It used 400 globally distributed coastal sites.
- Reported accuracy was 78.2%.
What’s invented
- Kemi, her father, and the coastal seed program are fictional.
- The local wave forecast and ferry conflict are invented.
- The global model does not guarantee local establishment.
Part two: The Outer Edge
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Filed under biology, mangroves, coastal ecology, waves.