Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/joc.5690 |
Dependence of 3-month Standardized Precipitation-Evapotranspiration Index dryness/wetness sensitivity on climatological precipitation over southwest China | |
Sun, Shanlei1; Chen, Haishan1; Li, Jinjian2; Wei, Jiangfeng1,3; Wang, Guojie4; Sun, Ge5; Hua, Wenjian1; Zhou, Shujia1; Deng, Peng1 | |
2018-10-01 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY |
ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2018 |
卷号 | 38期号:12页码:4568-4578 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | In this study, we estimated the respective contributions of precipitation and reference evapotranspiration (ET0) to annual SPEI-3 (3-month Standardized Precipitation-Evapotranspiration Index) anomalies over southwest China (SWC) using numerical experiments. Results show that the dominant factor (i.e., precipitation or ET0) for the dryness/wetness anomalies during 1961-2012 existed due to inter-annual and inter-decadal changes over SWC, which indicates the underlying mechanisms of dry/wet conditions have changed. On the other hand, we calculate the dryness/wetness sensitivity to precipitation or ET0 (defined as changes in SPEI-3 per millimetre) and find that the dryness/wetness sensitivity to ET0 is higher than that to precipitation for the whole SWC and the overwhelming majority (99%) of the 269 sites. Overall, the above findings imply that the role of ET0 in the dry/wet condition evolution is vital and should be paid more attentions. For the magnitude of the dryness/wetness sensitivity to precipitation or ET0, an evident increase from the southeast to northwest SWC is identified. Based on the analyses of the relationship between dryness/wetness sensitivity and climatological condition (i.e., precipitation, ET0, and aridity), the sensitivity magnitude is dependent on climatological precipitation and generally decreases with its increase. This study provides a wealth of quantitative information (e.g., dryness/wetness anomalies [sensitivity] caused by [to] precipitation and ET0) for better understanding the underlying mechanisms of the dry/wet condition evolution. |
英文关键词 | dryness wetness reference evapotranspiration sensitivity separation method southwest China |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000446279100017 |
WOS关键词 | CALIFORNIA DROUGHT ; CLIMATE-CHANGE ; TEMPERATURE ; IMPACTS ; VARIABILITY ; PRODUCTS ; RAINFALL ; TRENDS ; COVER ; RISK |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/36879 |
专题 | 气候变化 |
作者单位 | 1.Nanjing Univ Informat Sci & Technol NUIST, Collaborat Innovat Ctr Forecast & Evaluat Meteor, Key Lab Meteorol Disaster, Minist Educ,Int Joint Res Lab Climate & Environm, Nanjing, Jiangsu, Peoples R China; 2.Chengdu Univ Informat Technol, Sch Atmospher Sci, Chengdu, Sichuan, Peoples R China; 3.Univ Texas Austin, Jackson Sch Geosci, Austin, TX 78712 USA; 4.Nanjing Univ Informat Sci & Technol NUIST, Sch Geog & Remote Sensing, Nanjing, Jiangsu, Peoples R China; 5.US Forest Serv, Eastern Forest Environm Threat Assessment Ctr, Southern Res Stn, USDA, Raleigh, NC USA |
推荐引用方式 GB/T 7714 | Sun, Shanlei,Chen, Haishan,Li, Jinjian,et al. Dependence of 3-month Standardized Precipitation-Evapotranspiration Index dryness/wetness sensitivity on climatological precipitation over southwest China[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2018,38(12):4568-4578. |
APA | Sun, Shanlei.,Chen, Haishan.,Li, Jinjian.,Wei, Jiangfeng.,Wang, Guojie.,...&Deng, Peng.(2018).Dependence of 3-month Standardized Precipitation-Evapotranspiration Index dryness/wetness sensitivity on climatological precipitation over southwest China.INTERNATIONAL JOURNAL OF CLIMATOLOGY,38(12),4568-4578. |
MLA | Sun, Shanlei,et al."Dependence of 3-month Standardized Precipitation-Evapotranspiration Index dryness/wetness sensitivity on climatological precipitation over southwest China".INTERNATIONAL JOURNAL OF CLIMATOLOGY 38.12(2018):4568-4578. |
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