[1]张凌艺.西太平洋副热带高压的变化趋势及其气候效应[J].大众科技,2023,25(1):58-61.
　The Variation Trend of Western Pacific Subtropical High and Its Climatic Effect[J].Popular Science & Technology,2023,25(1):58-61.
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西太平洋副热带高压的变化趋势及其气候效应()
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《大众科技》[ISSN:1008-1151/CN:45-1235/N]

卷:
25
期数:
2023年1
页码:
58-61
栏目:
资源与环境
出版日期:
2023-01-20

文章信息/Info

Title:
The Variation Trend of Western Pacific Subtropical High and Its Climatic Effect
作者:
张凌艺　
（福建省龙文区气象局，福建 漳州 363005）
关键词:
西太平洋副热带高压; 夏季; 西伸脊点; 年代际变化; 气候效应
Keywords:
Western Pacific subtropical high summer western ridge point interdecadal change climatic effect
文献标志码:
A
摘要:
文章采用1948—2016年2.5°×2.5°夏季6月、7月、8月三个月500 hPa风场观测资料，以及同期NCEP/NCAR再分析资料，通过对西太平洋副热带高压年代际平均西脊点位置统计计算以及1979年前后气候要素变化，分析在全球变暖的大环境下，1979年前后西太平洋副热带高压年代际变化趋势，以及这种变化对西太平洋以及东亚大陆可能产生的影响。结果显示：西太平洋副热带高压在1979年前后年代际移动趋势是东退衰弱，使1979年前后陆地区域温度整体上升，盛夏雨带呈现东移态势。江淮地区与华北地区平均雨带的位置在1979年前后均呈现东移态势，两个地区平均雨带的位置在1979年前后均东退了约3个经度，比西太平洋副热带高压在1979年前后年代际东退幅度小一些。
Abstract:
In this paper, 500 hPa wind field observations and NCEP/NCAR reanalysis data of 2.5?2.5?in summer from 1948 to 2016 in June, July and August were used to calculate the average decadal location of the west ridge of the Western Pacific subtropical high and the changes of climate factors before and after 1979. In the context of global warming, the decadal variation trend of the Western Pacific subtropical high around 1979 and the possible influence of this change on the Western Pacific and East Asia continent are analyzed. The results show that the trend of interdecadal movement of the Western Pacific subtropical high around 1979 is to retreat eastward and weaken, which makes the land temperature rise as a whole around 1979, and the midsummer rain belt moves eastward. The positions of the average rain belts in the Jianghuai region and North China region both moved eastward around 1979. The positions of the average rain belts in the two regions both retreated eastward about 3 longitudes around 1979, less than the decadal retreat of the Western Pacific subtropical high around 1979.

参考文献/References:

[1]　GAO X, Y, SHI R, SONG F, et al. Reduction of future monsoon precipitation over China: comparison between a high resolution RCM simulation and the driving GCM[J]. Meteorology and Atmospheric Physics, 2008, 100: 73-86. [2] HE C, ZHOU J T, LIN A L, et al. Enhanced or weakened Western North Pacific subtropical high under global warming[J]. Scientific Reports, 2005, 5: 16771. [3] 罗玲. 六月份西太平洋副高西伸过程和年际变动特征及其机理分析[D]. 南京: 南京气象学院，2004. [4] 罗玲，何金海，谭言科. 西太平洋副热带高压西伸过程的合成特征及其可能机理[J]. 气象科学，2005(5): 5465-5473.

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备注/Memo

备注/Memo:
【收稿日期】2022-11-18 【作者简介】张凌艺（1994－），女，福建省龙文区气象局助理工程师，研究方向为气象预报。
更新日期/Last Update: 2023-03-30