137Cs

AI and oceanography converge to predict coastal cesium levels

The fastest cesium decay is in the Bohai Sea; the slowest is in the South China Sea. A hybrid TRR, LSTM, TRR framework now reconstructs and predicts 137Cs activity in China's coastal waters, integrating a bound-constrained exponential baseline with an LSTM residual network. This is measurable progress: long-term projections carry 90% ensemble intervals, not point estimates. For deeper context on coastal modeling, see our related work on refining tidal models through calibrated bottom friction coefficients.