adjoint sensitivity data of the Gulf Stream Index variability

The data include:1) EOF weights of the definition of GSI (gsi_maskC_v06r4unadjv42). The objective function is defined by summing the product of the weights and ocean temperature at 200 m.2) Weekly adjoint sensitivity data of GSI to surface wind stress, net heat flux, and E-P-runoff. The sensitivity results contain the adjoint sensitivity results to the objective function at 12 months of the year 2002, by defining the period of the objective function as these months from January to December. Each of the gsi_m[01-12]_y2002_adxx.tar.gz contains 4 adxx files with the adjoint sensitivity to tauu, tauv, Qnet and EmPmR. The file can be read by gcmfaces tool (https://github.com/MITgcm/gcmfaces).

本数据集包含以下内容：1）GSI定义的经验正交函数（EOF）权重（gsi_maskC_v06r4unadjv42），其目标函数为权重与200米层海洋温度的乘积之和。2）GSI针对表面风应力、净热通量及蒸发-降水-径流（E-P-runoff）的周度伴随敏感性数据。该敏感性结果对应2002年全年1至12月（将目标函数时段设定为该年1月至12月）下针对目标函数的伴随敏感性结果。每个gsi_m[01-12]_y2002_adxx.tar.gz 文件均包含4个分别对应纬向风应力（tauu）、经向风应力（tauv）、净热通量（Qnet）以及蒸发减降水减径流（EmPmR）的伴随敏感性文件。此类文件可通过gcmfaces工具（https://github.com/MITgcm/gcmfaces）读取。