中国第一代再分析产品CRA Interim气温在东南极中山站 - Dome A断面的适用性分析

朱江萍, 谢爱红, 丁明虎, 赵聪, 郭晓寅, 胡婉嫔, 徐冰, 秦翔

Applicability analysis of the air temperature in the CMA Global ReAnalysis product CRA Interim in the section from Zhongshan Station to Dome A， East Antarctica

Jiangping ZHU, Aihong XIE, Minghu DING, Cong ZHAO, Xiaoyin GUO, Wanpin HU, Bing XU, Xiang QIN

表3 三种再分析产品对极端事件反演的RMSE、 MB及R2

Table 3 RMSE， MB and R2 between field observations and CRA Interim， ERA Interim and ERA5 for extreme low and extreme high temperature events

极端事件 再分析产品 平均气温Tmean 最高气温Tmax 最低气温Tmin RMSE/℃ MB/℃ R2/% RMSE/℃ MB/℃ R2/% RMSE/℃ MB/℃ R2/% 极端低温 CRA Interim 7.3 -3.5 47.1 6.8 2.2 45.2 6.8 -3.6 46.1 ERA Interim 3.9 -2.1 60.5 5.3 -0.6 40.0 5.3 -5.2 76.9 ERA5 4.5 -2.9 56.9 5.1 -1.2 44.5 5.1 -7.9 87.3 极端高温 CRA Interim 7.5 -3.3 57.4 8.5 -2.7 59.9 7.5 -3.5 32.3 ERA Interim 4.9 -1.2 65.7 6.9 0.7 65.1 4.8 -2.7 65.5 ERA5 4.6 -2.3 70.6 6.2 -0.5 73.6 5.9 -5.2 64.2