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Prediction of Monthly Precipitation Based on Combined Model
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Gui-fang CHENG, Xue-min WANG
Water Resources and Power | 2023, 41(4) : 13 - 16
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Water Resources and Power | 2023, 41(4): 13-16
HYDROLOGY, WATER RESOURCES AND ENVIRONMENT
Prediction of Monthly Precipitation Based on Combined Model
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Gui-fang CHENG, Xue-min WANG
Affiliations
  • School of Mathematics and Statistics, Zhengzhou University, Zhengzhou 450001, China
Published: 2023-04-25 doi: 10.20040/j.cnki.1000-7709.2023.20220927
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In recent years, it causes disasters increasingly by too much or too little precipitation. Therefore, accurate prediction of precipitation is of great significance and practical application value to human life and social development. Based on the monthly precipitation data of Zhengzhou from 1990 to 2019, monthly precipitation was forecasted from 2020 to 2021 by utilizing SARIMA, Prophet and LSTM model, respectively. In order to improve the prediction accuracy of the model for monthly precipitation, two combined models of the SARIMA-EMD-LSTM and Prophet-EMD-LSTM were proposed. Empirical analysis shows that the proposed two combined models have higher prediction accuracy and decrease the root mean square error significantly. Furthermore, Prophet-EMD-LSTM model has comparatively better prediction effect. The monthly precipitations in Zhengzhou from April to December, 2022 were forecasted with higher precision.

precipitation forecasting  /  SARIMA  /  prophet  /  EMD  /  LSTM  /  combined model
Gui-fang CHENG, Xue-min WANG. Prediction of Monthly Precipitation Based on Combined Model[J]. Water Resources and Power, 2023 , 41 (4) : 13 -16 . DOI: 10.20040/j.cnki.1000-7709.2023.20220927
Year 2023 volume 41 Issue 4
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Article Info
doi: 10.20040/j.cnki.1000-7709.2023.20220927
  • Receive Date:2022-04-05
  • Online Date:2026-01-27
  • Published:2023-04-25
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  • Received:2022-04-05
  • Revised:2022-05-27
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    School of Mathematics and Statistics, Zhengzhou University, Zhengzhou 450001, China
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表12种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
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占总种数比例
Percentage of
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Number of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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