Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL088189 |
Extreme runoff generation from atmospheric river driven snowmelt during the 2017 Oroville Dam spillways incident | |
Brian Henn; Keith N. Musselman; Leanne Lestak; F. Martin Ralph; Noah P. Molotch | |
2020-06-24 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2020 |
英文摘要 | In Feb. 2017, a five‐day sequence of atmospheric river storms in California, USA, resulted in extreme inflows to Lake Oroville, the state’s second‐largest reservoir. Damage to the reservoir’s spillway infrastructure necessitated evacuation of 188,000 people; subsequent infrastructure repairs cost $1 billion. We assess the atmospheric conditions, snowmelt, and runoff against major historical events. The event generated exceptional runoff volumes (second‐largest in a 30 year record) partially at odds with the event precipitation totals (ninth‐largest). We explain the discrepancy with observed record melt of deep antecedent snowpack, heavy rainfall extending to unusually high elevations, and high water vapor transport during the atmospheric river storms. An analysis of distributed snow water equivalent indicates that snowmelt increased water available for runoff watershed‐wide by 37% (25‐52% at 90% confidence). The results highlight potential threats to public safety and infrastructure associated with a warmer and more variable climate. |
领域 | 气候变化 |
URL | 查看原文 |
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/278107 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Brian Henn,Keith N. Musselman,Leanne Lestak,et al. Extreme runoff generation from atmospheric river driven snowmelt during the 2017 Oroville Dam spillways incident[J]. Geophysical Research Letters,2020. |
APA | Brian Henn,Keith N. Musselman,Leanne Lestak,F. Martin Ralph,&Noah P. Molotch.(2020).Extreme runoff generation from atmospheric river driven snowmelt during the 2017 Oroville Dam spillways incident.Geophysical Research Letters. |
MLA | Brian Henn,et al."Extreme runoff generation from atmospheric river driven snowmelt during the 2017 Oroville Dam spillways incident".Geophysical Research Letters (2020). |
条目包含的文件 | 条目无相关文件。 |
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