| DOI: | 10.1002/2015GL063732
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| 论文题名: | A novel sensor combination (upGPR-GPS) to continuously and nondestructively derive snow cover properties |
| 作者: | Schmid L.; Koch F.; Heilig A.; Prasch M.; Eisen O.; Mauser W.; Schweizer J.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8699
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| EISSN: | 1944-8430
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| 出版年: | 2015
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| 卷: | 42, 期:9 | | 起始页码: | 3397
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| 结束页码: | 3405
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| 语种: | 英语
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| 英文关键词: | Global Satellite Navigation System
; L band
; liquid water content in snow
; snow height
; snow water equivalent
; Upward looking ground-penetrating radar
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| Scopus关键词: | Avalanches (snowslides)
; Electromagnetic wave attenuation
; Electromagnetic waves
; Geological surveys
; Global positioning system
; Ground penetrating radar systems
; Liquids
; Navigation systems
; Radar
; Satellite navigation aids
; Snow melting systems
; Travel time
; Global satellite navigation systems
; Ground Penetrating Radar
; L band
; Liquid water content
; Snow water equivalent
; Snow
; electromagnetic radiation
; GPS
; ground penetrating radar
; seasonal variation
; snow cover
; snowpack
; travel time
; water content
; wave attenuation
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| 英文摘要: | Monitoring seasonal snow cover properties is critical for properly managing natural hazards such as snow avalanches or snowmelt floods. However, measurements often cannot be conducted in difficult terrain or lack the high temporal resolution needed to account for rapid changes in the snowpack, e.g., liquid water content (LWC). To monitor essential snowpack properties, we installed an upward looking ground-penetrating radar (upGPR) and a low-cost GPS system below the snow cover and observed in parallel its evolution during two winter seasons. Applying external snow height (HS) information, both systems provided consistent LWC estimates in snow, based on independent approaches, namely measurements of travel time and attenuation of electromagnetic waves. By combining upGPR and GPS, we now obtain a self-contained approach instead of having to rely on external information such as HS. This allows for the first time determining LWC, HS, and snow water equivalent (SWE) nondestructively and continuously potentially also in avalanche-prone slopes. Key Points Nondestructive snow measurement below snow cover without external information Determining snowpack properties by combining radar and low-cost GPS Continuous data on liquid water content, snow height, and snow water equivalent ©2015. The Authors. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84930475220&doi=10.1002%2f2015GL063732&partnerID=40&md5=e32a658373c10a034046976502cf1401
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/8315
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | WSL Institute for Snow and Avalanche Research SLF, Davos Dorf, Switzerland
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| Recommended Citation: | |
Schmid L.,Koch F.,Heilig A.,et al. A novel sensor combination (upGPR-GPS) to continuously and nondestructively derive snow cover properties[J]. Geophysical Research Letters,2015-01-01,42(9).
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