Antarctic daily precipitation amounts for January 1979 - July 2017 from the RACMO version 3p2 limited area atmospheric model, along with flags that indicate extreme precipitation events

Two netcdf files are provided that contain daily precipitation amounts for January 1979 - July 2017 from the RACMO version 3p2 limited area, atmosphere-only model. The model is described in van Wessem, J. M., C. H. Reijmer, M. Morlighem, J. Mouginot, E. Rignot, B. Medley, and E. van Meijgaard, (2014) Improved representation of East Antarctic surface mass balance in a regional atmospheric climate model, Journal of Glaciology, 60, 761-770. The model was run over a 262 by 240 grid point domain covering Antarctica and parts of the Southern Ocean. The model was forced at the lateral boundaries by data from the European Centre for Medium-range Weather Forecasting (ECMWF) Interim reanalysis (ERA-Interim). Flags are provided for extreme precipitation events. A precipitation day was taken as a daily total of precipitation of greater than 0.02 mm. Extreme precipitation events were then taken as days when daily precipitation amount was greater than the 90th percentile of the daily precipitation values over the period 1979 - 2016.

本数据集提供两个NetCDF文件，包含1979年1月至2017年7月期间由RACMO 3p2版本有限区域仅大气模型模拟的日降水量数据。该模型的详细描述见van Wessem, J.M.、C.H. Reijmer、M. Morlighem、J. Mouginot、E. Rignot、B. Medley及E. van Meijgaard（2014）发表于《冰川学杂志》（Journal of Glaciology）的论文《区域大气气候模型中东南极表面质量平衡的改进表征》（卷60，761-770页）。模型在覆盖南极及南大洋部分区域的262×240网格点域上运行，侧边界强迫数据来源于欧洲中期天气预报中心（European Centre for Medium-range Weather Forecasting, ECMWF）的ERA-Interim再分析资料。数据集中包含极端降水事件的标识：降水日定义为日降水总量大于0.02毫米的日期；极端降水事件则指日降水量超过1979-2016年期间日降水值90百分位数的日期。