Remote sensing, hydrological modeling and in situ observations in snow cover research: a review
Snow is an important component of the hydrological cycle. As a major part of the cryosphere, snow cover also represents a valuable terrestrial water resource. In the context of climate change, the dynamics of snow cover play a crucial role in rebalancing the global energy and water budgets. Remote s...
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| 1. Verfasser: | |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
June 2018
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| In: |
Journal of hydrology
Year: 2018, Jahrgang: 561, Pages: 573-583 |
| ISSN: | 1879-2707 |
| DOI: | 10.1016/j.jhydrol.2018.04.027 |
| Online-Zugang: | Verlag, Volltext: https://doi.org/10.1016/j.jhydrol.2018.04.027 Verlag, Volltext: http://www.sciencedirect.com/science/article/pii/S0022169418302804 
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| Verfasserangaben: | Chunyu Dong |
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| 520 | |a Snow is an important component of the hydrological cycle. As a major part of the cryosphere, snow cover also represents a valuable terrestrial water resource. In the context of climate change, the dynamics of snow cover play a crucial role in rebalancing the global energy and water budgets. Remote sensing, hydrological modeling and in situ observations are three techniques frequently utilized for snow cover investigations. However, the uncertainties caused by systematic errors, scale gaps, and complicated snow physics, among other factors, limit the usability of these three approaches in snow studies. In this paper, an overview of the advantages, limitations and recent progress of the three methods is presented, and more effective ways to estimate snow cover properties are evaluated. The possibility of improving remotely sensed snow information using ground-based observations is discussed. As a rapidly growing source of volunteered geographic information (VGI), web-based geotagged photos have great potential to provide ground truth data for remotely sensed products and hydrological models and thus contribute to procedures for cloud removal, correction, validation, forcing and assimilation. Finally, this review proposes a synergistic framework for the future of snow cover research. This framework highlights the cross-scale integration of in situ and remotely sensed snow measurements and the assimilation of improved remote sensing data into hydrological models. | ||
| 650 | 4 | |a Field measurement | |
| 650 | 4 | |a Geotagged photo | |
| 650 | 4 | |a Hydrological model | |
| 650 | 4 | |a Remote sensing | |
| 650 | 4 | |a Snow cover | |
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