中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 近50年来山东省极端降水指数变化特征分析 水土保持研究 2016,23 (4) 120-127
Position: Home > Articles > Characteristics of Change in Extreme Precipitation Indices in Shandong Province in Recent 50 Years Research of Soil and Water Conservation 2016,23 (4) 120-127

近50年来山东省极端降水指数变化特征分析

作  者：
李胜利;巩在武;石振彬
单  位：
济南市气象局;南京信息工程大学公共管理学院;山东省气象局
关键词：
气候变化;极端降水指数;山东省
摘  要：
利用山东省117个气象站1961—2013年逐日降水观测数据,根据选取的9个极端降水指数,分析了区域内各极端降水指数的时间变化趋势和空间分布规律,并探讨了各极端降水指数与总降水量之间的关系。结果表明:长时段(1961—2013年)中一日最大降水量(RX1d)、最大连续五日降水量(RX5d)、降水强度(SDⅡ)、最长连续无雨日数(CDD)增大趋势不明显,其他各指数均有减小趋势,短时段(1991—2013年)除RX1d,CDD呈减小趋势,其他各指数均有增大趋势。不同地区两时段各极端降水指数变化趋势并不相同,短时段变幅更大同时变化显著的站点更多。除CDD和总降水量有近三分之一的站点为不显著的负相关外,其他指数和总降水量多为显著正相关。
译  名：
Characteristics of Change in Extreme Precipitation Indices in Shandong Province in Recent 50 Years
作  者：
LI Shengli;GONG Zaiwu;SHI Zhenbin;School of Public Administration,Nanjing University of Information Science & Technology;Ji′nan Meteorological Bureau;Shandong Meteorological Bureau;
关键词：
climate change;;extreme precipitation;;Shandong Province
摘  要：
Based on daily precipitation data recorded in 117 meteorological stations in Shandong Province during the period from 1961 to 2013,the temporal variability and spatial distributions of extreme precipitations were studied by using nine extreme precipitation indices.At the same time,the possible connections between extreme precipitation indices and annual total precipitation were analyzed.The main conclusions are as the followings.In the past 53years(long period),an decreasing trend was observed in terms of the indices such as annual total precipitation extremes(R95PTOT),annual count of days with RR≥10mm(R10),RR≥20mm(R20),and RR≥50mm(R50),maximum number of consecutive wet days(CWD),while an non-significantly enhanced trend was observed in terms of the indices such as the maximum 1-day precipitation amount(RX1d),the maximum 5-day precipitation amount(RX5d),maximum number of consecutive dry days(CDD)and the simply daily intensity index(SDⅡ).In the past 23years(short period),an increasing trend was observed in terms of the indices except RX1 d,CDD.Each extreme precipitation index trend between long period and short period was not same in different regions.Amplitude in short period was greater and stations with significantly trend were more than long period.The correlation coefficients between most extreme precipitation indices and annual total precipitation were positive or even significant positive except one third of stations between CDD and annual total precipitation which had no significant negative correlations.

相似文章

导出引用
计量
文章访问数: 5
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46