多源融合分析产品在辽宁地区的检验与适用性评估

doi:10.3969/j.issn.1673-503X.2024.05.010

Abstract

Abstract:

Using data from surface meteorological stations in Liaoning province from January to December of 2021, this study evaluates national multi-source integrated analysis products (resolution of 0.05°×0.05°) using various indices including mean error, mean absolute error, root mean square error, accuracy, correlation coefficient, and TS score.Additionally, two severe weather events involving heavy rain and strong winds in 2021 were selected to specifically assess the precipitation and wind speed products.The results show that, among the four products, the precipitation and temperature products generally perform better than the relative humidity and wind speed products, aligning more closely with observed values.The quality of the integrated analysis products is influenced by season and terrain, with larger errors observed in wind speed products in spring, precipitation products in summer, and temperature products in winter, especially in mountainous areas and near coastal regions.During extreme weather events, the precipitation and wind speed products demonstrate stability, with three-source integrated precipitation outperforming two-source integration.However, wind speed products generally underperform, with larger errors occurring at higher wind speeds.Multi-source integrated analysis products are already being applied in meteorological forecasting, early warning, services, and information operations within Liaoning province.

Key words: Multi-source integrated analysis products, Evaluation indices, Validation and assessment

CLC Number:

P413

Yang YU,Fanyue YU,Fangni WU,Dong SUI,Chen ZHU. Validation and applicability assessment of multi-source integrated analysis products in Liaoning region[J]. Journal of Meteorology and Environment, 2024, 40(5): 84-91.

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References 24

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气象要素	ME	MAE	RMSE	COR
气温/℃	0.003	0.534	0.812	0.998
相对湿度/(%)	-0.064	3.015	5.101	0.976
风速/(m·s^-1)	-1.187	1.360	1.743	0.803
降水/(mm·h^-1)	-0.069	0.564	1.838	0.853

风力等级	偏强率/(%)	偏弱率/(%)	平均误差/(m·s^-1)
0~1级	22.49	77.51	-0.35
2~3级	8.48	91.52	-1.38
4~5级	1.65	98.35	-2.98
6~7级	0.21	99.79	-5.43
8级以上	0.00	100.00	-8.24

Validation and applicability assessment of multi-source integrated analysis products in Liaoning region

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