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Remote sensing of snow cover in mountainous regions

Dietz, Andreas and Künzer, Claudia (2018) Remote sensing of snow cover in mountainous regions. International Snow Science Workshop, 7.-12.10.2018, Innsbruck.

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Snow cover is an important variable for water availability, it influences the radiation budget of the Earth surface, and may cause natural disasters such as avalanches or floods after the melting process. Within Europe especially in Norway, Sweden, and Switzerland, snow is an important source of freshwater for reservoirs and the subsequent production of electricity. Climate change affects parameters such as snow cover duration (SCD), generally leading to its decrease, a delayed snow cover onset and earlier snow melt. Further effects also include fewer frost days, reduced snow depth, reduced snow water equivalent, changes in soil frost and snow-fed river systems. In order to quantify the effect of climate change on snow cover in mountainous regions worldwide, remote sensing data is a suitable source of information. Medium resolution remote sensing data originating from Advanced Very High Resolution Radiometer (AVHRR), Moderate Resolution Imaging Spectroradiometer (MODIS), and Sentinel-3 as well as high resolution data provided by Landsat and Sentinel-1/-2 are available since the 1980s, allowing for long-term time series analysis of snow cover developments. Cloud cover, data gaps, and the pronounced topography constitute some of the major challenges that typically occur within mountain regions. The presentation will give a short overview of some of the techniques used to detect snow cover relying on different remote sensing data, while also methods for overcoming the aforementioned challenges will be introduced. Finally, the effect of climate change on snow cover in mountain regions will be illustrated for two example regions: Central Asia and Europe.

Item URL in elib:https://elib.dlr.de/124682/
Document Type:Conference or Workshop Item (Speech)
Title:Remote sensing of snow cover in mountainous regions
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Dietz, AndreasAndreas.Dietz (at) dlr.deUNSPECIFIED
Künzer, ClaudiaClaudia.Kuenzer (at) dlr.deUNSPECIFIED
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Snow cover, mountains, hydrology, snow, time series
Event Title:International Snow Science Workshop
Event Location:Innsbruck
Event Type:international Conference
Event Dates:7.-12.10.2018
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Remote Sensing and Geo Research
Location: Oberpfaffenhofen
Institutes and Institutions:German Remote Sensing Data Center > Land Surface Dynamics
Deposited By: Dietz, Andreas
Deposited On:18 Dec 2018 10:21
Last Modified:18 Dec 2018 10:21

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