The present study describes the active role of met-ocean parameters on the heavy flooding that occurred during July 2018 in the Kuttanad region, Kerala. The model-derived data as well as observations showed a high anomaly of wave height in July 2018 off Kerala was not correlated with local wind anomaly and indicated possible connection of wave anomalies to swell waves. The high period and high amplitude swell waves suggest a wave setup formation near shore for flooding intensification in the Kuttanad region. The wave observation at an open ocean location (AD09) also confirms the presence of high swell waves during the same period. Anomalous elevated non-tidal sea level was evident in the tide gauge data. The narrow opening at Thottappally, is not able to discharge the outflow of the heavy flood water and it is further complicated by the wave setup at the entrance caused by long period swell waves.

本研究描述了气象海洋参数对 2018 年 7 月发生在喀拉拉邦库塔纳德地区的大洪水的积极作用。模型得出的数据以及观测结果表明，2018 年 7 月喀拉拉邦外海的波高异常与当地风异常无关，表明波浪异常可能与涌浪有关。高周期和高振幅的涌浪表明在库塔纳德地区附近海岸有一个波浪设置地层，用于洪水加剧。在开阔海域 (AD09) 的海浪观测也证实了同一时期存在高涌浪。潮位计数据中非潮汐海平面异常升高是明显的。托塔帕利狭窄的开口，