Based on the in-situ subsurface thermal and salinity measurements from the Ocean Moored buoy network for Northern Indian Ocean (OMNI) during the Super Cyclone Amphan in the Bay of Bengal during 14–18 May 2020, we have identified that the ocean-atmosphere interaction is limited to 80 m, the depth of the pycnocline. Using the OAEE-TS algorithm and dynamic changes in the sea subsurface temperature, salinity and precipitation as inputs, we have calculated the water vapor generation rates for a range of wind speeds. Based on the salinity changes, the water vapor generation rates for cyclone period-averaged wind speeds of 9, 16 and 25 m/s were 0.86, 4.33 and 11.24 kg/m²/h, respectively. For the same wind speeds, based on the Ocean Heat Content (OHC) changes, ∼76, 86 and 95 % of the OHC changes were in the form of latent heat. The identified evaporation rate parameters along with the previous study results are presented as model which could be used as inputs for ocean-atmosphere coupled models and tropical cyclone intensification studies in the Bay of Bengal.

根据2020年5月14日至18日孟加拉湾超级旋风Amphan期间北印度洋海洋系泊浮标网络（OMNI）的地下热和盐度实测，我们确定了海洋与大气之间的相互作用限制在80 m（比诺可林的深度）内。使用OAEE-TS算法并以海底温度，盐度和降水量的动态变化为输入，我们已经计算了一定风速下水蒸气的产生率。根据盐度变化，气旋周期平均风速分别为9、16和25 m / s时，水蒸气的产生速率分别为0.86、4.33和11.24 kg / m ^2。/ h。对于相同的风速，基于海洋热含量（OHC）的变化，约有76％，86％和95％的OHC变化是以潜热的形式出现的。所确定的蒸发速率参数与先前的研究结果一起作为模型提供，可以用作孟加拉湾中的海气耦合模型和热带气旋强度研究的输入。