Nonuniform variations of precipitation and temperature across China over the period 1960–2015

Abstract

Warm season rainfall" is an important feature of China's climate, dominated by the East Asian Monsoon. In the context of climate change, this seasonal connection between precipitation and temperature may be altered. However, few studies have investigated the nonuniform variations in precipitation and temperature. This study examines nonuniform variations between precipitation and temperature in China, based on four indicators: precipitation concentration degree (PCD), precipitation concentration period (PCP), temperature concentration degree (TCD) and temperature concentration period (TCP). The results suggest that PCD and TCD experienced decreasing trends during the period from 1960 to 2015, respectively. Spatially, PCD and TCD exhibited asymmetrical change, with half of all stations in the humid subtropical region showing increasing trends in PCD and decreasing trends in TCD. Meanwhile, PCP and TCP exhibited decreasing trends, respectively. Increasing trends in PCP and decreasing trends in TCP, were found in 27% of all stations, mainly in the eastern humid subtropical region, whereas 20% showed decreasing trends in PCP and increasing trends in TCP, mostly across the southern humid subtropical, northern temperate humid/semi-humid and temperate semi-arid regions. In general, precipitation and temperature showed a nonuniform variation, indicating that annual feature of precipitation and temperature are changing.

The increase of temperature and precipitation in the different regions of Tarim River Basin has spatial and temporal heterogeneity over 1961-2021.

“…For example, found that between 1961 and 2010, the average annual precipitation in China had signi cant spatial differences and also uctuated in different time periods. Zhao et al (2021) found that regional temperature and precipitation in China generally showed uneven changes from 1960 to 2015. Guo et al (2020) found that the variation of precipitation in China from 1961 to 2015 showed different trends in different regions and seasons.…”

Agriculture Risks and Opportunities in a Climate-Vulnerable Watershed in Northeastern Taiwan—The Opinions of Leisure Agriculture Operators

“…However, the impacts of climate change and extreme weather are not uniform across the globe, and the risks and feasible adaptations vary across regions. Although mitigation and adaptation are common issues faced by the citizens of the planet, the spatial diversity of the climate disasters faced by farmers is unevenly distributed [14][15][16][17][18], and farmers' adaptation measures and capabilities are also uneven [19][20][21].…”

Investigating the effect of spatiotemporal, wind speed and wind direction on precipitation magnitudes within urban area

“…Studies have analysed the uctuation of precipitation using a number of different approaches. One such approach is the interpolation method, including the Thiessen method (Chow 1964;Brassel and Reif 1979) and the inverse distance method (Chang et al 2006 Zhao et al 2020). Some researchers have found that precipitation rates have increased slightly over the past four decades (Liu et al 2005;Zhang et al 2011).…”