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Page 1652 of Hydrological Processes Vol. 14, Issue 9
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2000
Hydrological Processes
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The potential of mapping wet snow- covered areas in mountain and glacier environments using satellite and airborne SAR was also demonstrated (Brugman et a/., 1996; Maxfield 1996). ...
In particular, it was shown that the computed temporal variation of wet snow area for mountain tallus slopes was similar to that for snow ablation measured at a base weather station, and that SAR imagery ...
MONITORING OF GLACIAL CHANGE IN THE HEAD OF THE YANGTZE RIVER FROM 1997 TO 2007 USING INSAR TECHNIQUE
2012
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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Conventional method for glacial monitoring is optical remote sensing. However, affected by cloud and snow cover, it is hard to monitor glacier by optical images. ...
With this proposed method, two ERS-2 SAR single look complex (SLC) images acquired in 1997 and two ENVISAT ASAR SLC images acquired in 2007 are used to extract glacial area in 1997 and 2007 over Geladandong ...
However, because of cloud cover and snow cover effects, multi-spectral data is often difficult to accurately monitor glacier changes. ...
doi:10.5194/isprsarchives-xxxix-b7-411-2012
fatcat:grgc74wq6rbftcqjopqck4powa
Remote Sensing of Mountain Glaciers and Related Hazards
[chapter]
2016
Environmental Applications of Remote Sensing
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But most importantly, glaciers have aroused a lot of concern in terms of glacier area changes, thickness change, mass balance and their consequences on water resources as well as related hazards. ...
Mountain glaciers are highly sensitive to temperature and precipitation fluctuations and active geomorphic agents in shaping the landforms of glaciated regions which are direct imprints of past glaciations ...
Optical remote sensing data is more suitable for snow cover mapping, glacier area and snout monitoring. ...
doi:10.5772/61917
fatcat:32cpqk7scncqjdoczohmgfaoym
Special Section Guest Editorial: Progress in Snow Remote Sensing
2014
Journal of Applied Remote Sensing
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Contribution of snowmelt to runoff is one of the important water resources in mountainous regions, in addition to rainfall and glacier melt. ...
for snow cover and glacier mapping (6 papers ), snow cover and snow melt-runoff modeling (3 papers), and one review paper. ...
Zhu et al. present a support vector machine-based decision tree algorithm to extract snow cover of mountainous areas from high resolution optical imagery (ZY-3 satellite, China). ...
doi:10.1117/1.jrs.8.084601
fatcat:i7zahwpduffqhid2musrrvzjou
SNOW COVER MAPPING AND ICE AVALANCHE MONITORING FROM THE SATELLITE DATA OF THE SENTINELS
2018
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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In order to monitor ice avalanches efficiently under disaster emergency conditions, a snow cover mapping method based on the satellite data of the Sentinels is proposed, in which the coherence and backscattering ...
The method can make full use of the acquired SAR image and multispectral image under emergency conditions, and the application potential of Sentinel data in the field of snow cover mapping is exploited ...
Based on the high reflectance of snow in some wavelengths compared with other natural targets, optical and near-infrared sensors can distinguish between snow-covered and snow-free ground (Warren, 1982 ...
doi:10.5194/isprs-archives-xlii-3-1765-2018
fatcat:syeh2q2ymrerrpazqh7peuhxru
Remote Sensing of Snow Cover Using Spaceborne SAR: A Review
2019
Remote Sensing
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In addition to widely applied backscattering-based method, thanks to the advancements of spaceborne SAR sensors and image processing techniques, many new approaches based on interferometric SAR (InSAR) ...
and polarimetric SAR (PolSAR) have been developed since the launch of ERS-1 in 1991 to monitor snow cover under both dry and wet snow conditions. ...
The method was tested in five mountainous study areas around the globe and the accuracy above 0.75 is confirmed in all regions by validation with optical-based SCE product. ...
doi:10.3390/rs11121456
fatcat:yo5qexaq45fcnj2o6ujh4aezje
Wet and Dry Snow Detection Using Sentinel-1 SAR Data for Mountainous Areas with a Machine Learning Technique
2019
Remote Sensing
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Traditional studies on mapping wet snow cover extent (SCE) often feature limitations, especially in vegetated and mountainous areas. ...
The aim of this study is to propose a new total and wet SCE mapping strategy based on freely accessible spaceborne synthetic aperture radar (SAR) data. ...
It complements the internal validation illustrated in Section 4.1, with addition to external validation based on the GSP, optical-based SCE, and in-situ snow depth data, as illustrated in the data splitting ...
doi:10.3390/rs11080895
fatcat:eon7s5w565hdnpruonrq2cauvu
Discussion and Conclusions
[chapter]
2011
Quantitative Geology of Late Jurassic Epicontinental Sediments in the Jura Mountains of Switzerland
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to determine the capabilities for snow parameter estimation in mountainous areas. ...
The backscatter statistics of EMISAR C-band data from two areas partly covered with wet snow was studied. ...
The aerial photo was co-registered with Area 3 EMISAR data using a second-degree control-point transformation. An accurate snow cover mask was extracted from the aerial image based on thresholding. ...
doi:10.1007/978-3-0348-0136-2_11
fatcat:o3gi6m3a2zewjfz54ylo2qj3km
Geo-Hazard Detection and Monitoring Using SAR and Optical Images in a Snow-Covered Area: The Menyuan (China) Test Site
2017
ISPRS International Journal of Geo-Information
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In this work, we combine SAR and optical images for geo-hazard detection and monitoring in Western China. ...
areas were confirmed with Chinese Gaofen-1 optical satellite images. ...
Author Contributions: Qihuan Huang and Jia Xu conceived and designed the study; SAR data was processed by Qihuan Huang and Yian Wang; Jia Xu and Zhimin Li provided and processed the optical image; Qihuan ...
doi:10.3390/ijgi6100293
fatcat:v7jzcunhebfatc6t33naswew4a
Assessing the Glacier Boundaries in the Qinghai-Tibetan Plateau of China by Multi-Temporal Coherence Estimation with Sentinel-1A InSAR
2019
Remote Sensing
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Based on the spatiotemporal analysis of coherence values in the selected sampling areas, we first determined the threshold as 0.7 for distinguishing among different ground targets and then extracted the ...
The DaDongkemadi Glacier (DDG) in the central QTP was selected as the study area with land cover mainly classified into wet snow, ice, river outwash and soil land. ...
Acknowledgments: The Sentinel-1A TOPS IW SLC SAR images, the POD data and the Sentinel-2B MSI L1C images were provided by the Copernicus Sentinel-1 Mission of ESA. ...
doi:10.3390/rs11040392
fatcat:vkulgceg7jgepcchm3itvlsd34
Accurate Determination of Glacier Surface Velocity Fields with a DEM-Assisted Pixel-Tracking Technique from SAR Imagery
2015
Remote Sensing
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The maximum velocity, 0.85 m•d −1 , was observed in the middle part on the Fedchenko Glacier, which is the world's longest mountain glacier. ...
The motion fluctuation on its main trunk is apparently influenced by mass flowing in from tributaries, as well as angles between tributaries and the main stream. ...
It is helpful to outline the glaciers always covered by the snow, which cannot be easily distinguished from the surrounding snow-covered mountains, especially in optical remote sensing data. ...
doi:10.3390/rs70810898
fatcat:yw6yr245sbdxtasnlehmejhswi
Discussion and Conclusions
[chapter]
2012
New Perspectives on Public Services
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to determine the capabilities for snow parameter estimation in mountainous areas. ...
The backscatter statistics of EMISAR C-band data from two areas partly covered with wet snow was studied. ...
The aerial photo was co-registered with Area 3 EMISAR data using a second-degree control-point transformation. An accurate snow cover mask was extracted from the aerial image based on thresholding. ...
doi:10.1093/acprof:osobl/9780199603831.003.0009
fatcat:edn3wlvikjffzpgy246zbsozqa
Discussion and Conclusions
[chapter]
2016
On the Perception of Dynamic Emotional Expressions: A Cross-cultural Comparison
Preserved Fulltext
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to determine the capabilities for snow parameter estimation in mountainous areas. ...
The backscatter statistics of EMISAR C-band data from two areas partly covered with wet snow was studied. ...
The aerial photo was co-registered with Area 3 EMISAR data using a second-degree control-point transformation. An accurate snow cover mask was extracted from the aerial image based on thresholding. ...
doi:10.1007/978-94-024-0887-4_9
fatcat:nnt7cl3serezjnye6dgvl2owpu
Discussion and Conclusions
[chapter]
2016
The Impact of Diaspora Ventures on the Dynamics of the Start-up Ecosystem Berlin
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to determine the capabilities for snow parameter estimation in mountainous areas. ...
The backscatter statistics of EMISAR C-band data from two areas partly covered with wet snow was studied. ...
The aerial photo was co-registered with Area 3 EMISAR data using a second-degree control-point transformation. An accurate snow cover mask was extracted from the aerial image based on thresholding. ...
doi:10.1007/978-3-658-16325-9_5
fatcat:4zuy5bh37zfythcasgv3bofh2y
Discussion and Conclusions
[chapter]
2016
The Use of First and Second Language in Chinese University EFL Classrooms
Preserved Fulltext
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to determine the capabilities for snow parameter estimation in mountainous areas. ...
The backscatter statistics of EMISAR C-band data from two areas partly covered with wet snow was studied. ...
The aerial photo was co-registered with Area 3 EMISAR data using a second-degree control-point transformation. An accurate snow cover mask was extracted from the aerial image based on thresholding. ...
doi:10.1007/978-981-10-1911-1_8
fatcat:x3qafod6tjhx5b673dxvecqur4
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