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Donglai Jiao, Nannan Xu, Fan Yang, Ke Xu
ERA5 is the latest fifth-generation reanalysis global atmosphere dataset from the European Centre for Medium-Range Weather Forecasts, replacing ERA-Interim as the next generation of representative satellite-observational data on the global scale. ERA5 data have been evaluated and applied in different regions, but the performances are inconsistent. Meanwhile, there are few precise evaluations of ERA5 precipitation data over long time series have been performed in Chinese mainland. This study evaluates the temporal-spatial performance of ERA5 precipitation data from 1979 to 2018 based on gridded-ground meteorological station observational data across China. The results showed that ERA5 data could capture the annual and seasonal patterns of observed precipitation in China well, with correlation coefficient values ranging from 0.796 to 0.945, but ERA5 slightly overestimated precipitation in the summer. Nonetheless, the results also showed that the accuracy of the precipitation products was strongly correlated with topographic distribution and climatic divisions. The performance of ERA5 shows spatial inherently across China that the highest correlation coefficient values locate in eastern, Northwestern and North China and the lowest biases locate in Southeast China. This study provides a reliable data assessment of the ERA5 data and precipitation trend analyses in China. The results provide accuracy references for the further use of precipitation satellite data for hydrological calculations and climate numerical simulations.
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Jiao, D., Xu, N., Yang, F., & Xu, K. (2021). Evaluation of spatial-temporal variation performance of ERA5 precipitation data in China. Scientific Reports, 11(1), 17956. https://doi.org/10.1038/s41598-021-97432-y
Jiao, Donglai, et al. "Evaluation of spatial-temporal variation performance of ERA5 precipitation data in China." Scientific Reports, vol. 11, no. 1, 2021, pp. 17956, https://doi.org/10.1038/s41598-021-97432-y.
Jiao, Donglai, Nannan Xu, Fan Yang, and Ke Xu. "Evaluation of spatial-temporal variation performance of ERA5 precipitation data in China." Scientific Reports 11, no. 1 (2021): 17956. https://doi.org/10.1038/s41598-021-97432-y.
Jiao D., Xu N., Yang F. [и др.] Evaluation of spatial-temporal variation performance of ERA5 precipitation data in China // Scientific Reports. — 2021. — Vol. 11, № 1. — P. 17956. — URL: https://doi.org/10.1038/s41598-021-97432-y
@article{jiao2021evaluation,
title = {{Evaluation of spatial-temporal variation performance of ERA5 precipitation data in China}},
author = {Donglai Jiao and Nannan Xu and Fan Yang and Ke Xu},
journal = {Scientific Reports},
year = {2021},
volume = {11},
number = {1},
pages = {17956},
doi = {10.1038/s41598-021-97432-y},
url = {https://doi.org/10.1038/s41598-021-97432-y}
}TY - JOUR AU - Jiao, Donglai AU - Xu, Nannan AU - Yang, Fan AU - Xu, Ke TI - Evaluation of spatial-temporal variation performance of ERA5 precipitation data in China JO - Scientific Reports VL - 11 IS - 1 SP - 17956 PY - 2021 DA - 2021/09/09 DO - 10.1038/s41598-021-97432-y UR - https://doi.org/10.1038/s41598-021-97432-y ER -
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