Synthetic in-situ T/S data over 1993-2018 from a NEMO-based simulation of the IMHOTEP project

"Synthetic observations" of in-situ Temperature and Salinity profiles as a function of depth have been extracted online during the production of the global, NEMO-based experiment ** IMHOTEP-GAIc**, at every single time and location (in x,y,z dimensions) where a true in-situ profile exists in the ENACT-4 database (Good et al 2013) over the simulation period: 1980-2018. This global ocean/sea-ice/iceberg simulation uses the NEMO model, and has a horizontal resolution of 1/4°. The atmospheric forcing applied at the surface is based on the JRA reanalysis (Kobayashi et al., 2015) and varies over the full range of time-scales from 6 hours to multi-decadal. The freshwater runoff forcing applied to the experiment is fully-variable (daily to multi-decadal) based on the ISBA-CTRIP hydrographic reanalysis for rivers (Decharme et al., 2019) and from altimeter data and regional GCM simulations for the liquid and solid discharges from the Greenland ice-sheet (Mouginot et al 2019). These runoffs are only climatological around Antarctica. The synthetic in-situ T/S dataset from the model is available over the period 1993-2018. See the README file for more information. And online documentation is also available here: https://doc-imhotep.readthedocs.io/en/latest/6-Synthetic-Obs.html随深度变化的原位（in-situ）温度与盐度剖面合成观测数据（Synthetic observations），在基于NEMO模式构建的全球试验**IMHOTEP-GAIc**的在线产出过程中完成提取。提取范围覆盖1980-2018年模拟时段内，ENACT-4数据库（Good等，2013）中存在真实原位剖面的所有时间与空间（x、y、z三维）位置。 本全球海洋-海冰-冰山模拟采用NEMO模式，水平分辨率为1/4°。 试验所采用的地表大气强迫场基于JRA再分析资料（JRA reanalysis，Kobayashi等，2015），其时间尺度覆盖6小时至数十年不等。 本试验的淡水径流强迫场具备全时变特征（时间尺度从日际至数十年）：河流径流部分基于ISBA-CTRIP水文再分析资料（Decharme等，2019）；格陵兰冰盖的液态与固态径流则源自高度计数据与区域全球气候模式（Global Climate Model，GCM）模拟结果（Mouginot等，2019）。 仅在南极周边区域，该径流强迫场采用气候态数据。 该模式产出的原位温度与盐度合成数据集可用时段为1993-2018年。 更多细节可参阅README文件，在线文档可访问：https://doc-imhotep.readthedocs.io/en/latest/6-Synthetic-Obs.html