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Analysis on causes of extreme high temperature in Zhejiang Province during July-September in 2024
HU Yuepeng, ZHAO Junping, LIU Hanhua, FU Yuan, SUN Shanlei, SONG Ziyi
Journal of Arid Meteorology, 2025 43 (4): 509
Under the background of global warming, the extreme high-temperature events become more frequent in recent years. During July-September in 2024, Zhejiang Province experienced a record-breaking high temperature event. The average high-temperature days there were 46 days, and the return period of this extreme high temperature event reached 82 years. Based on the observation data from the national meteorological stations in Zhejiang Province, High Resolution China Meteorological Administration Land Data Assimilation System (HRCLDAS), sea surface temperature from National Oceanic and Atmospheric Administration (NOAA), and reanalysis data from European Centre for Medium-Range Weather Forecasts Re. . .
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Characteristics and mechanisms of regional persistent high-temperature processes in June in Shandong
CHEN Junzhi, BO Zhongkai, XU Weiping, MENG Xiangxin, CAO Jie
Journal of Arid Meteorology, 2025 43 (4): 520
It is of great significance to investigate the characteristics and underlying mechanisms of regional persistent high-temperature processes, as this can help to extract predictive indicators and provide theoretical references for short-term climate forecasting. Based on daily maximum temperature data from 122 national meteorological stations in Shandong Province in June from 1979 to 2023, a regional persistent high-temperature index (RPH) is constructed to reflect the changing characteristics of persistent high-temperature processes in June. Furthermore, ERA5 reanalysis data for June over the same period are used to analyze the relationship between RPH and large-scale background fields, inclu. . .
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Temporal and spatial distribution characteristics of extreme high temperature events in the Yili River Basin of Xinjiang in recent 30 years
PANG Wanlong, YUAN Ziyue, MA Xiuzhi, HU Zhichao, LI Xinqiao, WANG Minyi, MA Yanan, ZHENG Yu
Journal of Arid Meteorology, 2025 43 (4): 530
Under the background of global change, extreme high-temperature events have occurred frequently, and their frequency has increased significantly since the 21st century, which has a profound impact on agricultural production and human health. To explore the spatiotemporal evolution patterns of extreme high temperatures in the Yili River Basin with complex terrain, this study calculated six extreme high-temperature indices, namely summer days (SU25), hot night days (TR20), warm days (TX90p), warm nights (TN90p), extreme maximum value of daily maximum temperature (TXx), and extreme maximum value of daily minimum temperature (TNx), based on daily temperature data from 11 meteorological stations . . .
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Spatio-temporal characteristics and circulation types of the regional high temperature processes in Liaoning during 1961-2023
SU Xiaoxuan, YAN Qi, LU Jinglong, YU Yue, FANG Yihe, SUN Xiaolei
Journal of Arid Meteorology, 2025 43 (4): 539
Based on daily maximum temperature observations from 54 national meteorological stations in Liaoning during 1961-2023 and reanalysis data from the National Centers for Environmental Prediction/National Center for Atmospheric Research (NCEP/NCAR), this study objectively identifies regional high temperature processes using established criteria, analyzes their spatiotemporal characteristics, and classifies the associated large-scale circulation patterns. A total of 24 regional high temperature events were identified during the study period, primarily affecting western Liaoning. The largest event impacted up to 55.56% of all stations. These events occurred between late May and mid-August, with m. . .
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Impact of climate warming on the three major grain crops in China
LI Man, FANG Shibo, HAN Jiahao, ZHUO Wen, ZHANG Zhanhao, MA Yuping, WANG Bin, QI Yue, E Youhao, TAN Kaiyan, HE Di, ZHAO Huarong
Journal of Arid Meteorology, 2025 43 (4): 554
Under climate warming, asymmetric day-night temperature increases and atmospheric CO2 concentration rising are two key features altering the distribution of water and heat resources, driving changes in the planting structure and boundaries of the three major grain crops (wheat, corn, and rice). Studying their responses to global warming is vital for food security. Using high-density meteorological station data, the paper analyzes thermal resource changes before and after 1990 during a 30-year period and their possible impacts on the potential planting areas of China’s three major grain crops using statistical method. In addition, the results from multi-site “Free-air temperature increase (FA. . .
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Estimation of drought resistance benefits of winter wheat under different drought years
LI Yijun
Journal of Arid Meteorology, 2025 43 (4): 562
This paper took winter wheat in the Huang-Huai-Hai region as the research object, where agricultural droughts occur frequently with warming climate and increasing evaporation, and defined the water shortage index (k) to classify drought year types based on the data from 1981 to 2020. Taking three stations in Henan Province as examples, this paper used the World Food Studies (WOFOST) model to analyze the cost-benefit of drought resistance under different drought year types, in order to provide a reference for improving agricultural output value and agricultural insurance business. The results show that during the study period, the three stations were easy to experience water stress with varyi. . .
