Spatial Distribution of Snow Cover in Tibet and Topographic Dependence
文献类型：期刊论文
| 作者 | Chu, Duo1,2; Liu, Linshan3; Wang, Zhaofeng3 |
| 刊名 | ATMOSPHERE
 |
| 出版日期 | 2023-08-01 |
| 卷号 | 14期号:8页码:18 |
| 关键词 | snow cover frequency topographic elements MODIS data SRTM DEM Tibet |
| DOI | 10.3390/atmos14081284 |
| 通讯作者 | Chu, Duo(chu_d22@hotmail.com) |
| 英文摘要 | Many major river systems in Asia, such as the Yangtze, Yarlung Zangbo, Indus, Ganges and Salween originate in the Tibetan mountains and snow cover in Tibet provides substantial water resources for these rivers, in addition to its weather-related and climatic significance. The high mountain terrain of Tibet is the main condition that snow cover exists and persists at mid-low altitudes. However, the relationships between snow cover and topographic factors of the plateau have not been fully addressed. In this study, the overall spatial distribution of snow cover and the impacts of topography (elevation, aspect and slope) on snow cover distribution in Tibet were analyzed based on the MODIS snow cover product and digital elevation model (DEM) using GIS spatial analysis techniques. The results showed that (1) snow cover in Tibet is spatially very uneven and is characterized by rich snow and high SCF (snow cover frequency) on Nyainqentanglha mountain and the surrounding high mountains, with less snow and a low SCF in the southern Tibetan valley and central part of northern Tibet. (2) Snow cover in Tibet has a strong elevation dependence and a higher SCF corresponds well with high mountain ranges. The mean SCF below 2000 m above sea level (m a.s.l) was less than 4%, while above 6000 m a.s.l, it reached 75%. (3) Intra-annual snow cover distribution below 4000 m a.s.l was characterized by unimodal patterns, while above 4000 m a.s.l, it was characterized by bimodal patterns. The lowest SCF below 6000 m a.s.l occurred in summer, while above 6000 m it occurred in winter. (4) The mountain slope and aspect affect snow cover distribution through changing radiation and energy balances in the mountain regions. The mean SCF generally increased with mountain slopes, with the highest on the north-facing aspect and the lowest on the south-facing aspect. |
| WOS关键词 | NORTHERN XINJIANG ; CLIMATE-CHANGE ; MODIS ; VARIABILITY ; VALIDATION ; PLATEAU ; RUNOFF ; IMPACT ; SRTM ; ASIA |
| 资助项目 | The authors would like to acknowledge the U.S. National Snow and Ice Data Center (NSIDC) for providing the MODIS snow cover product (MOD10A2). |
| WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:001056203000001 |
| 资助机构 | The authors would like to acknowledge the U.S. National Snow and Ice Data Center (NSIDC) for providing the MODIS snow cover product (MOD10A2). |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/196526]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Chu, Duo |
| 作者单位 | 1.Sci & Technol Dept Tibet Autonomous Reg, Tibet Key Lab Plateau Atmosphere & Environm Res, Lhasa 850000, Peoples R China 2.Tibet Inst Plateau Atmospher & Environm Sci, Tibet Meteorol Bur, Lhasa 850000, Peoples R China 3.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 | Chu, Duo,Liu, Linshan,Wang, Zhaofeng. Spatial Distribution of Snow Cover in Tibet and Topographic Dependence[J]. ATMOSPHERE,2023,14(8):18. |
| APA | Chu, Duo,Liu, Linshan,&Wang, Zhaofeng.(2023).Spatial Distribution of Snow Cover in Tibet and Topographic Dependence.ATMOSPHERE,14(8),18. |
| MLA | Chu, Duo,et al."Spatial Distribution of Snow Cover in Tibet and Topographic Dependence".ATMOSPHERE 14.8(2023):18. |
入库方式： OAI收割
来源：地理科学与资源研究所
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