Knowledge Resource Center for Ecological Environment in Arid Area
Snow evolution in a semi-arid mountainous area combining snow modelling and Landsat spectral mixture analysis | |
Pimentel, Rafael1; Herrero, Javier2; Polo, Maria Jose1 | |
通讯作者 | Pimentel, Rafael |
会议名称 | 3rd Remote Sensing and Hydrology Symposium (RSHS 14) / 3rd International Conference of GIS/RS in Hydrology, Water Resources and Environment (ICGRHWE 14) |
会议日期 | AUG 24-27, 2014 |
会议地点 | Guangzhou, PEOPLES R CHINA |
英文摘要 | This study proposes the use of both physically-distributed hydrological modelling in combination with satellite remote sensing images, to study the evolution of the snowpack in the Sierra Nevada mountains, in southern Spain. The snowmelt-accumulation module inside WiMMed (Watershed Integrated Management in Mediterranean Environment) hydrological model was employed, which includes the use of depletion curves to expand the energy and water balance equations over a grid representation. Snow maps obtained from spectral mixture analysis of Landsat images were used to evaluate this model at the study site. The results show a significant agreement between observed and simulated snow pixels in the area, which allows production of sequences of snow maps with greater resolution than the remote sensing images employed. However, some mismatches do appear at the boundaries of the snow area, mainly related to: (a) the great number of mixed pixels; and (b) the influence of the snow transport by wind. |
英文关键词 | snow physical modelling spectral mixture analysis semiarid environments Landsat imagery Spain |
来源出版物 | REMOTE SENSING AND GIS FOR HYDROLOGY AND WATER RESOURCES |
ISSN | 0144-7815 |
出版年 | 2015 |
卷号 | 368 |
页码 | 33-39 |
ISBN | 978-1-907161-46-9 |
出版者 | INT ASSOC HYDROLOGICAL SCIENCES |
类型 | Proceedings Paper |
语种 | 英语 |
国家 | Spain |
收录类别 | CPCI-S |
WOS记录号 | WOS:000357968900006 |
WOS关键词 | ENERGY ; MODIS |
WOS类目 | Environmental Sciences ; Remote Sensing ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Remote Sensing ; Water Resources |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/303808 |
作者单位 | 1.Univ Cordoba, Andalusian Inst Earth Syst Res, Fluvial Dynam & Hydrol Res Grp, Area Ingn Hidraul, Cordoba 14017, Spain; 2.Univ Cordoba, Andalusian Inst Earth Syst Res, Fluvial Dynam & Hydrol Res Grp, Cordoba 18006, Spain |
推荐引用方式 GB/T 7714 | Pimentel, Rafael,Herrero, Javier,Polo, Maria Jose. Snow evolution in a semi-arid mountainous area combining snow modelling and Landsat spectral mixture analysis[C]:INT ASSOC HYDROLOGICAL SCIENCES,2015:33-39. |
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