Journal of Arid Meteorology ›› 2023, Vol. 41 ›› Issue (6): 923-932.DOI: 10.11755/j.issn.1006-7639(2023)-06-0923
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YU Haohui1(), ZHOU Changyan2(
), CHEN Chao2, CHEN Yongren1
Received:
2022-07-02
Revised:
2022-12-07
Online:
2023-12-31
Published:
2024-01-03
通讯作者:
周长艳(1979—),女,研究员,主要从事气候及气候变化研究。E-mail: 作者简介:
于浩慧(1993—),女,工程师,主要从事气象灾害风险评估研究。E-mail: yuhaoh984264@163.com。
基金资助:
CLC Number:
YU Haohui, ZHOU Changyan, CHEN Chao, CHEN Yongren. Analysis of atmospheric circulation background and main impacts of heatwave in Sichuan Basin from July to August 2021[J]. Journal of Arid Meteorology, 2023, 41(6): 923-932.
于浩慧, 周长艳, 陈超, 陈永仁. 2021年7—8月四川盆地高温热浪大气环流背景及影响分析[J]. 干旱气象, 2023, 41(6): 923-932.
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URL: http://www.ghqx.org.cn/EN/10.11755/j.issn.1006-7639(2023)-06-0923
站名 | 最高气温/℃ | 出现日期 | 历史最高气温/℃ | 出现日期 |
---|---|---|---|---|
内江 | 40.7 | 2021-08-04 | 40.4 | 2006-08-12 |
隆昌 | 40.5 | 2021-08-03 | 40.3 | 2011-08-17 |
泸县 | 41.9 | 2021-08-03 | 41.4 | 2011-08-17 |
富顺 | 41.5 | 2021-08-03 | 41.3 | 2006-08-12 |
马边 | 39.1 | 2021-08-02 | 37.1 | 2019-08-16 |
犍为 | 39.6 | 2021-08-03 | 39.3 | 2006-08-11 |
郫县 | 37.9 | 2021-08-02 | 37.5 | 2015-07-25 |
宝兴 | 36.9 | 2021-08-01 | 35.6 | 2015-07-25 |
彭山 | 39.1 | 2021-08-03 | 39.0 | 2020-07-27 |
新都 | 38.4 | 2021-08-02 | 38.2 | 2015-07-25 |
广汉 | 38.5 | 2021-08-02 | 37.8 | 2015-07-25 |
邛崃 | 38.3 | 2021-08-02 | 38.2 | 2020-07-26 |
绵竹 | 37.2 | 2021-08-02 | 36.2 | 2002-07-14 |
Tab.1 Statistics of meteorological stations with daily maximum temperature breaking the historical record in Sichuan from 25 July to 9 August 2021
站名 | 最高气温/℃ | 出现日期 | 历史最高气温/℃ | 出现日期 |
---|---|---|---|---|
内江 | 40.7 | 2021-08-04 | 40.4 | 2006-08-12 |
隆昌 | 40.5 | 2021-08-03 | 40.3 | 2011-08-17 |
泸县 | 41.9 | 2021-08-03 | 41.4 | 2011-08-17 |
富顺 | 41.5 | 2021-08-03 | 41.3 | 2006-08-12 |
马边 | 39.1 | 2021-08-02 | 37.1 | 2019-08-16 |
犍为 | 39.6 | 2021-08-03 | 39.3 | 2006-08-11 |
郫县 | 37.9 | 2021-08-02 | 37.5 | 2015-07-25 |
宝兴 | 36.9 | 2021-08-01 | 35.6 | 2015-07-25 |
彭山 | 39.1 | 2021-08-03 | 39.0 | 2020-07-27 |
新都 | 38.4 | 2021-08-02 | 38.2 | 2015-07-25 |
广汉 | 38.5 | 2021-08-02 | 37.8 | 2015-07-25 |
邛崃 | 38.3 | 2021-08-02 | 38.2 | 2020-07-26 |
绵竹 | 37.2 | 2021-08-02 | 36.2 | 2002-07-14 |
Fig.3 Spatial distributions of daily highest temperature on 25 (a), 26 (b), 29 (c) July and 3 (d), 5 (e), 7 (f) August 2021 in the Sichuan Basin (Unit: ℃)
Fig.5 The average geopotential height from July to August during 1980-2010 (dashed lines) and from 25 July to 9 August 2021 (solid lines) at 200 hPa (a) and 500 hPa (b) (Unit: gpm)
Fig.6 The 200 hPa (a, c, e) and 500 hPa (b, d, f) geopotential height field (contours, Unit: gpm) and wind field (arrow vectors, Unit: m·s-1) on 25 (a, b), 29 (c, d) and 30 (e, f) July 2021
Fig. 7 The 200 hPa (a, c, e) and 500 hPa (b, d, f) geopotential height field (contours, Unit: gpm) and wind field (arrow vectors, Unit: m·s-1) on 1 (a, b), 3 (c, d) and 7 (e, f) August 2021
Fig.8 The process average (a, arrow vectors) and anomaly field (b) of the vertically integrated water vapor flux (Unit: kg·m-1·s-1), and the process average (c, color shaded and isolines) and anomaly field (d) of atmospheric precipitable water ( Unit: kg·m-2) in Sichuan and its surrounding areas from 25 July to 9 August 2021
Fig.9 Heat island intensity of Chengdu city from 25 July to 9 August 2021 (a) and spatial distribution of ground temperature on 1 (b) and 2 (c) August 2021 (Unit: ℃)
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