GSTDTAP  > 资源环境科学
DOI10.1029/2018WR024530
Time-Lapse Photogrammetry of Distributed Snow Depth During Snowmelt
Filhol, S.1; Perret, A.1,2; Girod, L.1,2; Sutter, G.1; Schuler, T., V1; Burkhart, J. F.1
2019-09-01
发表期刊WATER RESOURCES RESEARCH
ISSN0043-1397
EISSN1944-7973
出版年2019
卷号55期号:9页码:7916-7926
文章类型Article
语种英语
国家Norway; France
英文摘要

Characterizing snowmelt both spatially and temporally from in situ observation remains a challenge. Available sensors (i.e., sonic ranger, lidar, airborne photogrammetry) provide either time series of local point measurements or sporadic surveys covering larger areas. We propose a methodology to recover from a minimum of three synchronized time-lapse cameras changes in snow depth and snow cover extent over area smaller or equivalent to 0.12 km(2). Our method uses photogrammetry to compute point clouds from a set of three or more images and automatically repeat this task for the entire time series. The challenges were (1) finding an optimal experimental setup deployable in the field, (2) estimating the error associated with this technique, and (3) being able to minimize the input of manual work in the data processing pipeline. Developed and tested in the field in Finse, Norway, over 1 month during the 2018 melt season, we estimated a median melt of 2.12 +/- 0.48 m derived from three cameras 1.2 km away from the region of interest. The closest weather station recorded 1.94 m of melt. Other parameters like snow cover extent and duration could be estimated over a 300 x 400m region. The software is open source and applicable to a broader range of geomorphologic processes like glacier dynamic, snow accumulation, or any other processes of surface deformation, with the conditions of (1) having fixed visible points within the area of interest and (2) resolving sufficient surface textures in the photographs.


英文关键词snowmelt photogrammetry snow cover extent time lapse hydrology remote sensing
领域资源环境
收录类别SCI-E
WOS记录号WOS:000492139200024
WOS关键词CLASSIFICATION ; PHOTOGRAPHY ; RESOLUTION ; TERRAIN ; IMAGES
WOS类目Environmental Sciences ; Limnology ; Water Resources
WOS研究方向Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
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/186915
专题资源环境科学
作者单位1.Univ Oslo, Dept Geosci, Oslo, Norway;
2.Ecole Natl Sci Geograph, Champs Sur Marne, France
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GB/T 7714
Filhol, S.,Perret, A.,Girod, L.,et al. Time-Lapse Photogrammetry of Distributed Snow Depth During Snowmelt[J]. WATER RESOURCES RESEARCH,2019,55(9):7916-7926.
APA Filhol, S.,Perret, A.,Girod, L.,Sutter, G.,Schuler, T., V,&Burkhart, J. F..(2019).Time-Lapse Photogrammetry of Distributed Snow Depth During Snowmelt.WATER RESOURCES RESEARCH,55(9),7916-7926.
MLA Filhol, S.,et al."Time-Lapse Photogrammetry of Distributed Snow Depth During Snowmelt".WATER RESOURCES RESEARCH 55.9(2019):7916-7926.
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