Snow depth mapping in high-alpine catchments using digital photogrammetry
نویسندگان
چکیده
منابع مشابه
Application of Low-Cost UASs and Digital Photogrammetry for High-Resolution Snow Depth Mapping in the Arctic
The repeat acquisition of high-resolution snow depth measurements has important research and civil applications in the Arctic. Currently the surveying methods for capturing the high spatial and temporal variability of the snowpack are expensive, in particular for small areal extents. An alternative methodology based on Unmanned Aerial Systems (UASs) and digital photogrammetry was tested over va...
متن کاملInverse alpine catchments
Inverse distributed hydrological modelling of alpine catchments H. Kunstmann, J. Krause, and S. Mayr Institute for Meteorology and Climate Research (IMK-IFU), Forschungszentrum Karlsruhe, Kreuzeckbahnstraße 19, 82 467 Garmisch-Partenkirchen,Germany Institute of Geographic Sciences, Freie Universität Berlin, Malteserstraße 74–100, 12 249 Berlin, Germany Received: 6 October 2005 – Accepted: 19 Oc...
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RESUME It has been established that optical and near-infrared sensors can monitor the seasonal variations of snow cover in alpine areas in cloud free conditions. However, only microwave sensors are able to acquire data independently of day light and in adverse weather conditions. The effects of dry snow on currently available C-band SAR data are rather small and difficult to detect. On the cont...
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The runoff regime of high alpine basins will be affected in response to global warming not only by the seasonal snow cover but also by glaciers. Runoff peaks due to snowmelt will partially be shifted from the summer to the winter. The glacier melt will supply a higher amount of meltwater until glaciers finally disappear, if the temperature keeps rising. In order to evaluate quantitatively this ...
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Introduction: The success of hyperthermia depends on the accuracy of the temperature monitoring in the tumor and the surrounding normal tissue. In this study, the temperature changes were determined by computing the speckle displacement in the ultrasound digital images. Speckle tracking algorithm was used to compute the displacement. Materials and Methods: The experiment was perf...
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ژورنال
عنوان ژورنال: The Cryosphere
سال: 2015
ISSN: 1994-0424
DOI: 10.5194/tc-9-229-2015