ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
Archive > Volume 50 Issue 2 > 2024,50(2):246-256. DOI:10.7519/j.issn.1000-0526.2024.010501 Prev Next
Characteristics of Climate Anomalies and Major Meteorological Events over China in 2023
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Abstract:
China experienced a warm and dry climate in 2023 with the national average temperature reaching 10.71℃, which is 0.82℃ warmer than the climatology of 1991-2020 and has peaked the warmest temperature since 1951. The annual precipitation averaged over China was 615.0 mm, being 3.9% less than the normal and the second lowest since 2012. The temperatures in all four seasons in the year were higher than normal values, and the summer and autumn temperatures were found to be the second warmest and the warmest in the same periods in records, respectively. In terms of precipitation in 2023, precipitation in autumn was more than normal, but less than normal in the other three seasons. During the rainy season from May to September, the national average precipitation was reduced by 4.3% compared to the normal amount, recorded as the second lowest since 2012. The precipitation in the central and eastern parts of China was characterized by the distribution of more in the middle and less in the north and south. In 2023, China suffered from many types of regional meteorological disasters. First of all, droughts occurred in many regions, and particularly the Southwest China experienced consecutive drought from winter to spring. Also in spring, more than normal sand-dust processes attacked northern China. Then, in early summer, North China and the Huanghuai Region endured the most intense high-temperature process since 1961. From the end of July to the beginning of August, a rarely-seen extremely severe precipitation process, which was caused by the Super Typhoon Doksuri, hit the Beijing-Tianjin-Hebei Region, incurring heavy flood disaster, thus a phenomenon “rapid transfer from drought to flood” occurred in North China. The autumn rain in West China started earlier but ended late, resulting much more rainfall than normal. In addition, there were more than normal cold waves impacting China all the year round, and the most intense cold wave took place in mid-January. Moreover, cold airs frequently appeared in late autumn and early winter, making more heavy snowfall days and deeper snow depth in December in North China and Huanghuai Region.
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