干旱区研究 ›› 2021, Vol. 38 ›› Issue (1): 22-28.doi: 10.13866/j.azr.2021.01.03
收稿日期:
2020-04-23
修回日期:
2020-09-14
出版日期:
2021-01-15
发布日期:
2021-03-05
通讯作者:
张调风
作者简介:
杨昭明(1963-),男,高级工程师,研究方向为高原气象预报及服务. E-mail: 基金资助:
YANG Zhaoming1(),ZHANG Tiaofeng1,2()
Received:
2020-04-23
Revised:
2020-09-14
Online:
2021-01-15
Published:
2021-03-05
Contact:
Tiaofeng ZHANG
摘要:
利用53个气象观测站1961—2017年5—9月逐日降水资料,分析了青藏高原东北部雨季降水量的变化特征,以及不同等级降水变化在降水量增量中的相对贡献。结果表明:1961—2017年青藏高原东北部干旱区雨季降水量呈增加趋势,半干旱区和半湿润区降水量的极端性增强。大部分地区的降水强度普遍增加。进一步分析可知,青藏高原东北部雨季降水量变化主要由降水强度的变化引起,同时中雨等级降水增加贡献大于其他等级降水。半湿润区和半干旱区东部降水极端化趋势明显增强。该结果有助于进一步理解和认识青藏高原东北部生态环境变化的气候效应。
杨昭明,张调风. 1961—2017年青藏高原东北部雨季降水量变化及其贡献度分析[J]. 干旱区研究, 2021, 38(1): 22-28.
YANG Zhaoming,ZHANG Tiaofeng. Analysis of precipitation change and its contribution in the rainy season in the northeast Qinghai-Tibet Plateau from 1961 to 2017[J]. Arid Zone Research, 2021, 38(1): 22-28.
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