Sensitivity experiments of continuously stratified linear ocean model

Used the resulting ENSO-related wind stress fields to force a linear ocean model (LOM), generating two experiments: LOM-ENSO (forced by ENSO-related wind stress) and LOM-ENSO-noIOD (forced by ENSO-noIOD-related stress). The model domain encompasses the tropical IO north of 29°S and incorporates a realistic IO basin. The model integration from January 1979 to December 2020 using monthly ERA5 wind stress. The variable is monthly subsurface zonal velocity (Unit: cm s-1).

本研究利用经处理得到的与厄尔尼诺-南方涛动（ENSO）相关的风应力场驱动线性海洋模式（LOM），设置了两组对比试验：LOM-ENSO（由ENSO相关风应力驱动）与LOM-ENSO-noIOD（由不含印度洋偶极子（IOD）信号的ENSO相关风应力驱动）。该模式的模拟区域涵盖南纬29°以北的热带印度洋，且纳入了真实的印度洋海盆。模式积分时段为1979年1月至2020年12月，驱动数据为逐月分辨率的ERA5风应力场。本数据集的变量为逐月次表层纬向流速，单位为厘米每秒（cm s⁻¹）。