Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016JD025184 |
Canopy effects on snow sublimation from a central Arizona Basin | |
Svoma, Bohumil M. | |
2017 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:1 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Guided by 30 m terrain and forest cover data, snow sublimation from the Salt River basin in the Southwest U.S. is simulated for years 2008 (wet year) and 2007 (dry year). Downscaled meteorological input correlates well (r similar to 0.80) with independent observations at AmeriFlux sites. Additionally, model correlation and bias with eddy-covariance vapor flux observations is comparable to previous localized modeling efforts. Upon a 30% reduction in effective leaf area index, canopy sublimation decreases by 1.29 mm (27.0%) and 1.05 mm (23.0%) at the basin scale for the 2008 and 2007 simulations, respectively. Ground sublimation decreases 0.72 mm (4.75%) in 2008 and only 0.17 mm (1.5%) in 2007. Canopy snow-holding capacity and frequent unloading events at lower elevations limit the variability in canopy sublimation from wet year to dry year at the basin scale. The greater decrease in snowpack sublimation in the wet year is partly due to decreased longwave radiation from the canopy reduction over a more extensive snowpack than the dry year. This decrease overcomes the increased solar radiation and wind speed during winter. A second factor is that a greater extent of the snowpack persisted into spring in 2008 than 2007, and the large increase in shortwave flux upon canopy reduction increases melt rates, reducing duration. Only in heavily forested high elevations (>2900m above sea level) in 2008 does the snowpack persist long enough into spring to result in increased ground sublimation upon canopy reduction. As forest cover change can occur rapidly, these results are critical from water resource and ecosystem function perspectives. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000393877800002 |
WOS关键词 | PONDEROSA PINE FORESTS ; ENERGY-BALANCE MODEL ; SOUTHERN ROCKY-MOUNTAINS ; SUB-ALPINE FORESTS ; UNITED-STATES ; SURFACE SUBLIMATION ; CONIFEROUS FOREST ; WATER EQUIVALENT ; EDDY COVARIANCE ; MIXED-CONIFER |
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/32472 |
专题 | 气候变化 |
作者单位 | Univ Missouri, Dept Soil Environm & Atmospher Sci, Columbia, MO 65211 USA |
推荐引用方式 GB/T 7714 | Svoma, Bohumil M.. Canopy effects on snow sublimation from a central Arizona Basin[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(1). |
APA | Svoma, Bohumil M..(2017).Canopy effects on snow sublimation from a central Arizona Basin.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(1). |
MLA | Svoma, Bohumil M.."Canopy effects on snow sublimation from a central Arizona Basin".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.1(2017). |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
查看访问统计 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[Svoma, Bohumil M.]的文章 |
百度学术 |
百度学术中相似的文章 |
[Svoma, Bohumil M.]的文章 |
必应学术 |
必应学术中相似的文章 |
[Svoma, Bohumil M.]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
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