Arid
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
ISSN0144-7815
出版年2015
卷号368
页码33-39
ISBN978-1-907161-46-9
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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