Performance of snow density measurement systems in snow stratigraphies
文献类型：期刊论文
| 作者 | Jiansheng, Hao5; Mind'je, Richard1,3; Ting, Feng1,2,3; Lanhai, Li1,2,3,4 |
| 刊名 | HYDROLOGY RESEARCH
 |
| 出版日期 | 2021-06-01 |
| 页码 | 13 |
| 关键词 | dielectric permittivity measuring systems gravimetric measuring systems precision and accuracy snow density snow stratigraphies |
| ISSN号 | 1998-9563 |
| DOI | 10.2166/nh.2021.133 |
| 通讯作者 | Lanhai, Li(lilh@ms.xjb.ac.cn) |
| 英文摘要 | Gravimetric and dielectric permittivity measurement systems (DMS) are applied to measure snow density, but few studies have addressed differences between the two measurement systems under complex snowpack conditions. A field experiment was conducted to measure the snow density using the two measurement systems in stratigraphical layers of different densities, liquid water content (LWC), hardness, and shear strength, and the performance of the two measurement systems was analyzed and compared. The results showed that the snow density from the DMS tended to underestimate by 9% in the dry snowpack and overestimate by 3% in the wet snowpack, expressed as the percentage of the mean density from the gravimetric measurement system (GMS). Compared with the GMS, the DMS has relatively low precision and accuracy in the dry snowpack and similar precision and accuracy in the wet snowpack. The accuracy and precision of the two measurement systems increased with the increase of hardness and shear strength of snow in the dry snowpack, but the accuracy and precision measured of the DMSs increased with the decrease of hardness and shear strength of snow in wet snowpack. The results will help field operators to choose a more reasonable measurement system based on snowpack characteristics to get reliable density data and optimize field measurements. |
| WOS关键词 | PHYSICAL-PROPERTIES ; SPATIAL VARIABILITY ; DIELECTRIC-CONSTANT ; TIANSHAN MOUNTAINS ; SURFACE ; COVER ; CLIMATE ; ENERGY ; DEPTH ; MODEL |
| 资助项目 | National Project of Investigation of Basic Resources for Science and Technology[2017FY100501] ; Natural Science Foundation of China (NSFC)[U1703241] ; CAS Instrumental development project of Automatic Meteorological Observation System with Multifunctional Modularization |
| WOS研究方向 | Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000660436900001 |
| 出版者 | IWA PUBLISHING |
| 资助机构 | National Project of Investigation of Basic Resources for Science and Technology ; Natural Science Foundation of China (NSFC) ; CAS Instrumental development project of Automatic Meteorological Observation System with Multifunctional Modularization |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/164066]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Lanhai, Li |
| 作者单位 | 1.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China 2.Chinese Acad Sci, Ili Stn Watershed Ecosyst Res, Xinyuan 835800, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Xinjiang Key Lab Water Cycle & Utilizat Arid Zone, Urumqi 830011, Xinjiang, Peoples R China 5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiansheng, Hao,Mind'je, Richard,Ting, Feng,et al. Performance of snow density measurement systems in snow stratigraphies[J]. HYDROLOGY RESEARCH,2021:13. |
| APA | Jiansheng, Hao,Mind'je, Richard,Ting, Feng,&Lanhai, Li.(2021).Performance of snow density measurement systems in snow stratigraphies.HYDROLOGY RESEARCH,13. |
| MLA | Jiansheng, Hao,et al."Performance of snow density measurement systems in snow stratigraphies".HYDROLOGY RESEARCH (2021):13. |
入库方式： OAI收割
来源：地理科学与资源研究所
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