Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JCLI-D-18-0268.1 |
Influence of Atmospheric Rivers on Mountain Snowpack in the Western United States | |
Goldenson, N.1; Leung, L. R.2; Bitz, C. M.3; Blanchard-Wrigglesworth, E.3 | |
2018-12-01 | |
发表期刊 | JOURNAL OF CLIMATE
![]() |
ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2018 |
卷号 | 31期号:24页码:9921-9940 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | In the coastal mountains of western North America, most extreme precipitation is associated with atmospheric rivers (ARs), narrow bands of moisture originating in the tropics. Here we quantify how interannual variability in atmospheric rivers influences snowpack in the western United States in observations and a model. We simulate the historical climate with the Model for Prediction Across Scales (MPAS) with physics from the Community Atmosphere Model, version 5 [CAM5 (MPAS-CAM5)], using prescribed sea surface temperatures. In the global variable-resolution domain, regional refinement (at 30 km) is applied to our region of interest and upwind over the northeast Pacific. To better characterize internal variability, we conduct simulations with three ensemble members over 30 years of the historical period. In the Cascade Range, with some exceptions, winters with more atmospheric river days are associated with less snowpack. In California's Sierra Nevada, winters with more ARs are associated with greater snowpack. The slope of the linear regression of observed snow water equivalent (SWE) on reanalysis-based AR count has the same sign as that arrived at using the model, but is statistically significant in observations only for California. In spring, internal variance plays an important role in determining whether atmospheric river days appear to be associated with greater or less snowpack. The cumulative (winter through spring) number of atmospheric river days, on the other hand, has a relationship with spring snowpack, which is consistent across ensemble members. Thus, the impact of atmospheric rivers on winter snowpack has a greater influence on spring snowpack than spring atmospheric rivers in the model for both regions and in California consistently in observations.t |
英文关键词 | Atmosphere North America Ensembles General circulation models Nonhydrostatic models Interannual variability |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000450565300001 |
WOS关键词 | EXTREME PRECIPITATION ; NORTH-AMERICA ; MODEL ; SIMULATIONS ; COAST ; CALIFORNIA ; ALGORITHM ; MOISTURE ; WINTER ; VARIABILITY |
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/20911 |
专题 | 气候变化 |
作者单位 | 1.Univ Calif Los Angeles, Inst Environm & Sustainabil, Los Angeles, CA 90095 USA; 2.Pacific Northwest Natl Lab, Richland, WA 99352 USA; 3.Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA |
推荐引用方式 GB/T 7714 | Goldenson, N.,Leung, L. R.,Bitz, C. M.,et al. Influence of Atmospheric Rivers on Mountain Snowpack in the Western United States[J]. JOURNAL OF CLIMATE,2018,31(24):9921-9940. |
APA | Goldenson, N.,Leung, L. R.,Bitz, C. M.,&Blanchard-Wrigglesworth, E..(2018).Influence of Atmospheric Rivers on Mountain Snowpack in the Western United States.JOURNAL OF CLIMATE,31(24),9921-9940. |
MLA | Goldenson, N.,et al."Influence of Atmospheric Rivers on Mountain Snowpack in the Western United States".JOURNAL OF CLIMATE 31.24(2018):9921-9940. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论