[an error occurred while processing this directive]
暴雨灾害
       首页|  期刊介绍|  编 委 会|  征稿简则|  期刊订阅|  下载中心|  编辑部公告|  联系我们


暴雨灾害  2018, Vol. 37 Issue (02): 181-186    DOI: 10.3969/j.issn.1004-9045.2018.02.010
论文 最新目录 | 下期目录 | 过刊浏览 | 高级检索  |   
近46 a汉江流域地表干湿状况变化及其影响因素
黄俊杰1,2,周悦3,周月华3,高正旭3
1. 国网湖北省电力公司电力科学研究院, 武汉 430077;2. 国家电网公司高压电器设备现场实验技术
重点实验室,武汉 430077;3. 武汉区域气候中心,武汉 430074
Variation of surface dry and wet conditions and its influencing factors in the Hanjiang River basin from 1971 to 2016
HUANG Junjie1,2,ZHOU Yue3,ZHOU Yuehua3,GAO Zhengxu3
1. State Grid Hubei Electric Power Research Institute, Wuhan 40077; 2. State Grid Key Laboratory of On-site Test Technology
on High Voltage Power Apparatus, Wuhan
40077; 3. Wuhan Regional Climate Center, Wuhan 430074
 全文: PDF (1955 KB)   HTML ( 输出: BibTeX | EndNote (RIS)      背景资料
摘要 利用1971—2016年汉江流域17个气象站逐日观测资料,采用联合国粮农组织(FAO) Penman-Monteith公式计算研究区各气象站的潜在蒸散发量(ET0),并由此计算出各站的相对湿润度指数(MI),研究 MI的时空变化特征,并对影响其变化的气象要素进行了探讨。结果表明: 近46 a来汉江流域呈微弱的变湿趋势,ET0减少趋势最为明显;MI自西北向东南逐渐增加,低值中心主要位于流域北部的镇安、商州和西峡等地,且其范围从1970年代到2000年以后存在逐渐扩大的变化趋势;ET0的高值中心从1970年代和1980年代的流域东南部向1990年代和2000年以后的流域中部移动。流域地表MI在年内呈单峰型变化,其最高值出现在7月,从汉江流域上游到下游,其 MI月均值变化峰值月份有所提前,存在着由典型的单峰型曲线向双峰型曲线转换的趋势,地表湿润状况显著转好;汉江流域地表干湿事件的变化与降水量和相对湿度呈正相关,与 ET0、最高气温、日照时数和风速呈负相关。
服务
把本文推荐给朋友
加入我的书架
加入引用管理器
E-mail Alert
RSS
作者相关文章
黄俊杰
周悦
周月华
高正旭
关键词地表干湿状况;   相对湿润度指数;   潜在蒸散发量;   汉江流域     
Abstract: Based on the diurnal observations at 17 meteorological stations in the Hanjiang River basin from 1971 to 2016, we used the FAO Penman-Monteith formula to calculate the potential evapotranspiration (ET0) of all the stations above to derive the relative moist index (MI), and then discussed the temporal-spatial variation of MI and the meteorological factors that affected it. The results show that there is a weak wetting trend in the Hanjiang River basin in recent 46 years, in which decreasing trend of ET0 is evidently shown. MI has increased gradually from northwest to southeast, with the low value center locating in Zhen’an, Shangzhou and Xixia of the north part of Hanjiang River basin. The domain of low value center increases gradually from 1970s to 2016. The high value center of ET0 moves from the southeast of Hanjiang River basin in 1970s and 1980s to the middle of this basin from 1990s to 2016. The monthly distributions of MI show the single peak characteristic, whose maximum value is in July. The peak-value month of stations would be moved up from the upper reaches to the lower reaches of the Hanjiang River basin, showing the transformation trend from a typical single peak to the bimodal distribution. The surface wetting conditions turn better significantly. Different factors have different impacts on the MI in the Hanjiang River basin, showing a positive correlation with precipitation and relative humidity, and a negative correlation with ET0, maximum temperature, sunshine duration and wind speed.
Key wordssurface dry and wet conditions;   relative moist index;potential evapotranspiration;   Hanjiang River basin     
引用本文:   
黄俊杰, 周悦, 周月华,等 .2018. 近46 a汉江流域地表干湿状况变化及其影响因素[J]. 暴雨灾害, 37(02): 181-186.
HUANG Jun-Jie, ZHOU Yue, ZHOU Yue-Hua, et al .2018. Variation of surface dry and wet conditions and its influencing factors in the Hanjiang River basin from 1971 to 2016[J]. Torrential Rain and Disasters, 37(02): 181-186.
 
没有本文参考文献
[1] 肖莺,杜良敏,任永建. 汉江流域秋汛期典型旱涝年与前期海温的关系研究[J]. 暴雨灾害, 2013, 32(2): 182-187.
[2] 李才媛,谌伟,金琪. 近30多年汉江流域面雨量时空变化特征分析[J]. 暴雨灾害, 2004, 23(04): 7-10.
版权所有 © 2011《暴雨灾害》编辑部    鄂ICP备06018784号-3
地址: 湖北省武汉市东湖高新技术开发区金融港二路《暴雨灾害》编辑部
 邮编: 430205 Tel: 027-81804935   E-mail: byzh7939@163.com
技术支持: 北京玛格泰克科技发展有限公司