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Academic Journal of Environment & Earth Science, 2022, 4(8); doi: 10.25236/AJEE.2022.040807.

Analysing the characteristics of precipitation variation in Hefei in recent years based on multiple linear regression

Author(s)

Pan Chunhua

Corresponding Author:
Pan Chunhua
Affiliation(s)

College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, China

Abstract

Based on the multiple linear regression model, the precipitation change characteristics of Hefei from 2009 to 2019 are analyzed, and the long-term precipitation data show that the annual precipitation in northwest China, Jianghuai and eastern coast of China is increasing, and the annual precipitation in North China and central China is decreasing, and the precipitation change between regions is obviously different. In recent decades, extreme precipitation events have shown a frequent trend in China, especially in the northwest and southeast coasts and the middle and lower reaches of the Yangtze River, which not only increases the frequency of extreme precipitation but also increases the intensity of precipitation. In this context, the characteristics of precipitation change in Hefei from 2009 to 2019 were studied, and the results showed that the change of precipitation in Hefei was related to the minimum temperature and year. The change of precipitation is obvious, there is an interannual and interdecadal variation law of fluctuation change, the fluctuation amplitude increases, the uncertainty of precipitation increases, and the lowest temperature has a negative correlation with the annual precipitation, that is, the lower the lowest temperature, the greater the precipitation, which is consistent with the change trend of precipitation in the entire Jianghuai River Basin. In order to provide reference for meteorological research and the prevention of meteorological disasters.

Keywords

Multiple linear regression model, SPSS, Precipitation, Hefei City

Cite This Paper

Pan Chunhua. Analysing the characteristics of precipitation variation in Hefei in recent years based on multiple linear regression. Academic Journal of Environment & Earth Science (2022) Vol. 4 Issue 8: 35-40. https://doi.org/10.25236/AJEE.2022.040807.

References

[1] Chen Lei. Strict water resources management to ensure sustainable development ——— written on the occasion of World Water Day and "China Water Week" in 2010[J]. China Water Resources, 2010(6): 3 -4.

[2] Ding Yihui, Wang Huijun. New understanding of scientific issues of climate change in China in the past 100 years [J]. Chinese Science Bulletin, 2016, 61(10): 1029-1041.

[3] REN Guoyu, WU Hong, CHEN Zhenghong. Spatial characteristics of precipitation trends in China [J]. Journal of Applied Meteorological Science, 2000, 11(3):322-330.

[4] Wang Sheng, Lu Jun, Wu Biwen, et al. Study on summer precipitation changes and its impact on drought and flood in Anhui Province [J]. Journal of Anhui Agricultural Sciences, 2008, 36(7): 2870-2873.

[5] Gu Junqiang, Shi Neng, Xue Genyuan. Climate change of precipitation and rainy days in Zhejiang Province in the past 40 years [J]. Journal of Applied Meteorological Science, 2002, 13(3):322-329.

[6] Jiang Junjie, Sun Weiguo. Analysis of temporal and spatial variation characteristics of precipitation in Anhui Province from 1959 to 2007[J].China Agrometeorology, 2012,33(01):27-33.

[7] HE Zhiming, DENG Shiru, WU Qiong, et al. Analysis of temperature and precipitation changes in Nanchang in 1963~2012[J].Journal of Meteorology and Environment, 2018,34(2):35-43.

[8] Ma Jianing, Gao Yanhong. Analysis of average annual precipitation and extreme precipitation changes in the upper reaches of the Yellow River in the past 50 years [J]. Plateau Meteorology, 2019, 38(1): 124-135.).

[9] WANG Tingting, FENG Qi, GUO Xiaoyan, et al. Precipitation variation characteristics and abrupt analysis in Gulang River Basin in 1959~2014[J].Plateau Meteorology, 2019,38(6):1251-1262.

[10] Wu Xiulan, Zhang Taixi, Wang Hui, et al. Analysis of regional climate change characteristics in Xinjiang in 1961~2017[J].Desert and Oasis Meteorology, 2020, 14(4):27-34.

[11] Xue Yuting, Li Xiehui, Wang Lei, et al. Spatial-temporal variation characteristics of different levels of precipitation in summer in southwest China in 1976~2017[J]. Journal of Southwest University: Natural Science Edition, 2022,44(2):137-145.).

[12] Li Xiaojuan. Journal of Xi'an University of Architecture and Technology: Natural Science Edition, 2012, 44(4):489-494.

[13] Li Na, Zhou Weibo. Spatial-temporal variation characteristics and abrupt analysis of precipitation in Xi'an[J]. Western Development: Land Development Engineering Research, 2017, 12(6): 58-63, 70.