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Variation Trend and Abrupt Change in Temperature Around Hongze Lake from 1981 to 2020
Yun Niu1, Jing Yun2*, Xinchuan Li3 and Qilong Ren4
1School of Geography and Planning, Huaiyin Normal University, No. 111, Changjiang West Road, Huai’an, 223300, China
2Huaian Kaiming Middle School of ecological cultural tourism district, No. 99, Xingchen Road, Huai’an, 223300, China
3Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection Co-constructed by the Province and Ministry, Huaian 223300, China
4Jiangsu Tangku Intelligent monitoring and water environment ecological control engineering research center, Huaian 223300, China
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Abstract:
In global warming, the influence of lakes on climate change in surrounding areas has attracted extensive attention from many scholars. Based on 40 years of observation of the daily mean temperature, maximum temperature, and minimum temperature of 16 meteorological observation stations around Hongze Lake, we analyzed the trend and characteristics of temperature change in the area around Hongze Lake from 1981 to 2020. The Mann-Kendall trend analysis method and mutation detection method were used for the analysis. The daily mean, maximum, and minimum temperatures have fluctuated but increased. The daily minimum temperature showed the largest increase (0.55℃/10 years). The daily mean, minimum, and maximum temperatures changed significantly with the seasonal variation, and the warming trend in spring was most significantly observed, followed by those in winter and summer. The historic increase in temperature in autumn was the least significant. The abrupt change points of daily mean, minimum, and maximum temperatures were observed in 1996. Fluctuation became more severe and frequent after such abrupt changes. The increase in temperature in seasons was significant before and after 1998. The abrupt change air temperature of Hongze Lake was observed most frequently in winter, followed by autumn but in spring and summer, there were no such outliers observed in temperature. The closer the area to Hongze Lake, the temperature changes became smaller, the minimum temperature became higher, and the maximum temperature became lower. This verified the climate regulation effect of Hongze Lake on the surrounding area. The research results provide a reference for creating a protocol for possible natural disasters in the future and for transportation in water and agricultural structure adjustment.
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Keywords: Temperature trend, Abrupt change in temperature, Interannual variation, Seasonal variation during the year, The area around Hongze Lake
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Received:January 30, 2023; Revised:February 15, 2023; Accepted:March 01, 2023; Published:March 30, 2023
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*Corresponding author; e-mail: niuyun2028@163.com
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Citation:Niu, Y., & Yun, J., & Li, X., & Ren, Q.(2023). Variation Trend and Abrupt Change in Temperature Around Hongze Lake from 1981 to 2020. International Journal of Environmental Sustainability and Protection, 3(1), 7-16. https://doi.org/10.35745/ijesp2023v03.01.0002
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Copyright: ©
2023
The Author(s). Published with license by IIKII, Singapore. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (CC BY), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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