主办单位:中国气象局沈阳大气环境研究所
国际刊号:ISSN 1673-503X
国内刊号:CN 21-1531/P

气象与环境学报 ›› 2024, Vol. 40 ›› Issue (6): 35-43.doi: 10.3969/j.issn.1673-503X.2024.06.005

• 论文 • 上一篇    下一篇

1961—2020年松辽流域作物生长季降水量十年际变化及其与水汽输送的关系

宋成玉1(),李永生1,*(),汪靖2,班晋1,赵佳莹1,王昊1   

  1. 1. 黑龙江省气候中心,黑龙江哈尔滨 150030
    2. 天津市气象科学研究所,天津 300074
  • 收稿日期:2023-10-16 出版日期:2024-12-28 发布日期:2025-01-21
  • 通讯作者: 李永生 E-mail:hljsongchengyu@163.com;liyongsheng330@163.com
  • 作者简介:宋成玉,女,1997年生,工程师,主要从事气候预测与气候变化研究工作,E-mail:hljsongchengyu@163.com
  • 基金资助:
    中国气象局气象能力提升联合研究专项(22NLTSY001);黑龙江省自然科学基金项目(LH2022D022);中国气象局沈阳大气环境研究所联合开放基金(2021SYIAEKFMS10)

Decadal variations of precipitation during crop growing season and its relationship with moisture transport in the Songhua-Liaohe River Basin from 1961 to 2020

Chengyu SONG1(),Yongsheng LI1,*(),Jing WANG2,Jin BAN1,Jiaying ZHAO1,Hao WANG1   

  1. 1. Heilongjiang Climate Centre, Harbin 150030, China
    2. Tianjin Institute of Meteorological Science, Tianjin 300074, China
  • Received:2023-10-16 Online:2024-12-28 Published:2025-01-21
  • Contact: Yongsheng LI E-mail:hljsongchengyu@163.com;liyongsheng330@163.com

摘要:

选用1961—2020年CN05.1降水观测数据和ERA5再分析资料,分析松辽流域作物生长季(5—9月)降水量十年际变化特征及其与水汽收支的关系,探讨松辽流域水汽总收支与水汽输送的关系。结果表明:松辽流域作物生长季降水量和水汽收支具有相似的十年际变化特征;有5条水汽通道影响松辽流域降水,水汽主要来自西风带和东亚夏季风的水汽输送。20世纪60—70年代松辽流域作物生长季以东亚夏季风水汽输送为主,20世纪80—90年代水汽输送为西风带和夏季风共同主导,21世纪以后主要为西风带水汽。

关键词: 西风带, 夏季风, 水汽收支, 水汽输送

Abstract:

Using CN05.1 precipitation observation data and ERA5 reanalysis data from 1961 to 2020, this study analyzes the interdecadal variations of precipitation during the crop growing season (May to September) in the Songhua-Liaohe River Basin and its relationship with moisture budget, and explores the link between total moisture budget and moisture transport in the basin.The results indicate that precipitation and the moisture budget during the crop growing season of the Songhua-Liaohe River Basin exhibit similar decadal variation patterns.Five moisture channels influence precipitation in the basin, with westerlies and the East Asian summer monsoon serving as the primary moisture sources.During the 1960s to 1970s, the moisture transport in the crop growing season was primarily dominated by the East Asian summer monsoon.In the 1980s to 1990s, both westerlies and the summer monsoon jointly influenced moisture transport.Since the 21st century, westerlies have become the dominant driver of moisture transport.

Key words: Westerlies, Summer monsoon, Moisture budget, Moisture transport

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