Extreme temperature of the mid-eighteenth century as compared to todays in Beijing

Yuyu Ren, Guoyu Ren (), Rob Allan and Siqi Zhang
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Yuyu Ren: China University of Geosciences (CUG)
Guoyu Ren: China University of Geosciences (CUG)
Rob Allan: Met Office Hadley Centre
Siqi Zhang: China University of Geosciences (CUG)

Climatic Change, 2021, vol. 165, issue 3, No 4, 19 pages

Abstract: Abstract The extreme temperature events of the mid-eighteenth century can help understand the background climate conditions of the pre-industrial revolution period. However, studies are lacking mainly due to the scarceness of instrumental observations. Based on the observations made by the French Missionary Amiot in Beijing, a daily maximum and minimum temperature dataset during 1757–1762 was established using relationships developed with reference to modern observations of nearby stations. The first result of a comparison between the extreme temperature change of the mid-eighteenth century and the present situation (2014–2019) in central Beijing city shows: (1) There were mean annual summer days (the number of days with daily maximum temperature > 25 °C) exceeding 130 d, and tropical nights (the number of days with daily minimum temperature > 20 °C) of more than 52 d, as compared to more than 150 d and 80 d respectively at present; (2) The mean annual frost days (daily minimum temperature 90th percentile) and warm nights (days when minimum temperature > 90th percentile) were 63 d and 30 d, respectively, compared to the present values of more than 65 d and 55 d, respectively; (4) The annual mean cool days (days when maximum temperature

Keywords: Extreme temperature events; Mid-eighteenth century; Pre-industrial revolution; Climate change; Beijing (search for similar items in EconPapers)
Date: 2021
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DOI: 10.1007/s10584-021-03063-7

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