Journal of Meteorology and Environment ›› 2023, Vol. 39 ›› Issue (4): 47-56.doi: 10.3969/j.issn.1673-503X.2023.04.007
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Jinlan GAO1(),Huayang WEN2,Xiaoyi ZHENG1,Ya'nan CAO1,Yun WANG1
Received:
2022-11-04
Online:
2023-08-28
Published:
2023-09-23
CLC Number:
Jinlan GAO,Huayang WEN,Xiaoyi ZHENG,Ya'nan CAO,Yun WANG. Applicability evaluation of three reanalysis precipitation datasets in Anhui province[J]. Journal of Meteorology and Environment, 2023, 39(4): 47-56.
Table 1
Calculation formulas for evaluation indexes"
评价指标 | 计算公式 | 取值范围 | 最优值 |
Pearson相关系数(R) | | [-1, 1] | 1 |
平均绝对百分比误差(MAPE) | [0, +∞] | 0 | |
相对误差(RE) | [-∞, +∞] | 0 | |
泰勒评分(TSS) | [0, 1] | 1 |
Table 2
Statistics of annual and seasonal precipitations for reanalysis data and the observations in Anhui province form 1979 to 2018"
时段 | T-TSS | S-TSS | MAPE/(%) | ||||||||
ERA5 | CMA-RA | CMFD | ERA5 | CMA-RA | CMFD | ERA5 | CMA-RA | CMFD | |||
春季 | 0.66 | 0.82 | 0.96* | 0.94* | 0.94* | 0.83 | 15.52 | 6.77 | 5.12* | ||
夏季 | 0.86 | 0.91 | 0.98* | 0.96 | 0.98* | 0.96 | 19.32 | 7.14* | 7.29 | ||
秋季 | 0.70 | 0.87 | 0.95* | 0.85* | 0.85* | 0.57 | 14.56 | 10.02 | 8.65* | ||
冬季 | 0.90 | 0.91 | 0.98* | 0.74* | 0.64 | 0.59 | 15.16 | 7.07* | 7.76 | ||
年 | 0.90 | 0.94 | 0.97* | 0.97* | 0.96 | 0.92 | 14.94 | 6.41* | 6.63 |
Table 3
Statistics of precipitation for reanalysis data and the observation in each month in Anhui province form 1979 to 2018"
月份 | T-TSS | S-TSS | MAPE/(%) | |||||||||
ERA5 | CMA-RA | CMFD | ERA5 | CMA-RA | CMFD | ERA5 | CMA-RA | CMFD | ||||
1月 | 0.94 | 0.91 | 0.97* | 0.96* | 0.96* | 0.88 | 18.36 | 13.87 | 12.19* | |||
2月 | 0.92 | 0.97 | 0.99* | 0.95 | 0.97* | 0.94 | 20.96 | 9.38 | 7.87* | |||
3月 | 0.91 | 0.95 | 0.99* | 0.96 | 0.98* | 0.98* | 16.67 | 10.51 | 6.93* | |||
4月 | 0.76 | 0.92 | 0.99* | 0.96 | 0.98* | 0.97 | 21.61 | 9.53 | 5.28* | |||
5月 | 0.86 | 0.90 | 0.97* | 0.93 | 0.96* | 0.91 | 22.67 | 9.09 | 6.77* | |||
6月 | 0.87 | 0.92 | 0.98* | 0.89 | 0.94* | 0.88 | 27.09 | 9.50 | 7.23* | |||
7月 | 0.76 | 0.88 | 0.96* | 0.32 | 0.43* | 0.21 | 19.14 | 8.75 | 7.64* | |||
8月 | 0.76 | 0.90 | 0.96* | 0.47 | 0.52* | 0.26 | 20.38 | 13.35 | 11.10* | |||
9月 | 0.89 | 0.88 | 0.98 | 0.39* | 0.34 | 0.34 | 24.85 | 19.02 | 12.12* | |||
10月 | 0.91 | 0.97 | 0.99* | 0.76* | 0.71 | 0.65 | 37.72 | 15.93* | 25.11 | |||
11月 | 0.91 | 0.95 | 0.98* | 0.87* | 0.85 | 0.83 | 39.25 | 18.76 | 12.18* | |||
12月 | 0.96 | 0.99* | 0.99* | 0.93 | 0.94* | 0.90 | 315.50 | 89.47* | 129.50 |
Fig.7
Spatial distributions for the relative biases of multi-year average Meiyu precipitation of ERA5 (a1), CMA-RA (a2), CMFD (a3), and the observation (a4) in regions between the Yangtze and Huaihe River and the corresponding values of ERA5 (b1), CMA-RA (b2), CMFD (b3), and the observation (b4) in regions along and south to the Yangtze River from 1979 to 2018"
Table 4
Statistics of annual Meiyu precipitation for reanalysis data and the observation in the Yangtze and Huaihe river regions and along the south region of the Yangtze River from 1979 to 2018"
区域 | T-TSS | S-TSS | MAPE/(%) | ||||||||
ERA5 | CMA-RA | CMFD | ERA5 | CMA-RA | CMFD | ERA5 | CMA-RA | CMFD | |||
江淮地区 | 0.88 | 0.95 | 0.99* | 0.49 | 0.58 | 0.71* | 29.23 | 13.88 | 6.50* | ||
沿江江南梅雨区 | 0.85 | 0.93 | 0.95* | 0.52 | 0.72* | 0.47 | 25.68 | 10.74 | 10.06* |
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