Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1061/(ASCE)HE.1943-5584.0000643 |
Characteristics of Ephemeral Hydrographs in the Southwestern United States | |
Schumer, Rina1; Knust, Anna1; Boyle, Douglas P.2 | |
通讯作者 | Schumer, Rina |
来源期刊 | JOURNAL OF HYDROLOGIC ENGINEERING |
ISSN | 1084-0699 |
EISSN | 1943-5584 |
出版年 | 2014 |
卷号 | 19期号:1页码:10-17 |
英文摘要 | A collection of archived hydrographs for 28 ephemeral streams provided a unique opportunity to quantify hydrograph characteristics for channels of the arid/semiarid Southwestern United States. Recurrence of flow and volume calculated using annual maxima converge with those of the complete series by 7years, suggesting that records of annual maxima are sufficient for estimates of extreme event recurrence. The relationship between peak discharge and volume for a flow event cannot be tightly constrained without consideration of event duration. As a result, volumes V(T), for recurrence intervals T, cannot be estimated from corresponding peaks Qp(T). Instead, volume recurrence should be estimated based on the joint distribution of peak discharge and duration. Although the density governing event duration in these semiarid study regions decays as a power law with time, the authors could not identify a probability density that provides a good fit to volume magnitude. Deterministic relationships exist between peak discharge and volume for an event of a given magnitude for the Las Vegas, Nevada; Phoenix, Arizona; and Albuquerque, New Mexico regions. |
英文关键词 | Frequency analysis Flow duration Regional analysis Arid lands Floods United States Hydrographs Frequency analysis Flow duration Regional analysis Arid lands Flood volume |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000333453400002 |
WOS关键词 | FLOOD FREQUENCY-ANALYSIS ; RUNOFF EVENTS |
WOS类目 | Engineering, Civil ; Environmental Sciences ; Water Resources |
WOS研究方向 | Engineering ; Environmental Sciences & Ecology ; Water Resources |
来源机构 | Desert Research Institute |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/183403 |
作者单位 | 1.Desert Res Inst, Div Hydrol Sci, Reno, NV 89512 USA; 2.Univ Nevada, Dept Geog, Reno, NV 89557 USA |
推荐引用方式 GB/T 7714 | Schumer, Rina,Knust, Anna,Boyle, Douglas P.. Characteristics of Ephemeral Hydrographs in the Southwestern United States[J]. Desert Research Institute,2014,19(1):10-17. |
APA | Schumer, Rina,Knust, Anna,&Boyle, Douglas P..(2014).Characteristics of Ephemeral Hydrographs in the Southwestern United States.JOURNAL OF HYDROLOGIC ENGINEERING,19(1),10-17. |
MLA | Schumer, Rina,et al."Characteristics of Ephemeral Hydrographs in the Southwestern United States".JOURNAL OF HYDROLOGIC ENGINEERING 19.1(2014):10-17. |
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