Journal ArticleDOI
On the Quantification of Surface Changes using Grid-based Digital Elevation Models (DEMs)
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This paper discusses the quantification of vertical surface displacements by means of grid-based digital elevation models (DEMs) by comparing altitude and different topographic parameters, which have a geomorphic significance with respect to surface changes.Abstract:
This paper discusses the quantification of vertical surface displacements by means of grid-based digital elevation models (DEMs). The surface changes are quantified by comparing altitude and different topographic parameters, which have a geomorphic significance with respect to surface changes. This paper describes the choice of different spatial calculation techniques, considering DEM accuracy and the propagation of error for the different topographic parameters involved. The techniques are illustrated on two grid-based DEMs from Finsterwalderbreen, a 35 km2 sized valley glacier on south-western Spitzbergen, Norwegian High Arctic.read more
Citations
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Journal ArticleDOI
Co-registration and bias corrections of satellite elevation data sets for quantifying glacier thickness change
Christopher Nuth,Andreas Kääb +1 more
TL;DR: In this paper, the authors proposed a three-step methodological framework for assessing and correcting digital elevation models (DEMs) to quantify glacier elevation changes: (i) remove DEM shifts, (ii) check for elevation-dependent biases, and (iii) checking for higher-order, sensor-specific biases.
Journal ArticleDOI
Remote sensing of glacier- and permafrost-related hazards in high mountains: an overview
Andreas Kääb,Christian Huggel,Luzia Fischer,S. Guex,Frank Paul,I. Roer,Nadine Salzmann,S. Schlaefli,K. Schmutz,Demian Schneider,Tazio Strozzi,Y. Weidmann +11 more
TL;DR: In this paper, the authors provide an overview of air and spaceborne remote sensing methods suitable for glacier and permafrost hazard assessment and disaster management. But the authors do not consider the use of satellite stereo-derived DTMs with the DTM from the Shuttle Radar Topography Mission (SRTM).
Journal ArticleDOI
Svalbard glacier elevation changes and contribution to sea level rise
TL;DR: In this paper, the authors compare satellite altimetry from the ICESat, 2003-2007, to older topographic maps and digital elevation models (1965-1990) to calculate long-term elevation changes of glaciers on the Svalbard Archipelago.
Journal ArticleDOI
Reanalysing glacier mass balance measurement series
Michael Zemp,Emmanuel Thibert,Matthias Huss,D. Stumm,C. Rolstad Denby,Christopher Nuth,Samuel U. Nussbaumer,Geir Moholdt,Andrew Mercer,Christoph Mayer,Philip C. Joerg,Peter Jansson,Bernhard Hynek,Andrea Fischer,H. Escher-Vetter,Hallgeir Elvehøy,Liss M. Andreassen +16 more
TL;DR: This article proposed a framework for reanalysing glacier mass balance series that includes conceptual and statistical toolsets for assessment of random and systematic errors, as well as for validation and calibration of the glaciological with the geodetic balance results.
Journal ArticleDOI
High spatial resolution data acquisition for the geosciences: kite aerial photography
TL;DR: The results demonstrate that the method can extract a high number of sampling points at high accuracy, provided that there is suitable image texture across the site, and final judgment concerning the suitability of derived data is dependent upon an understanding of measurement variability and user quantification of acceptable accuracy.
References
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Book
Statistics and data analysis in geology
TL;DR: In this article, a thoroughly revised edition presents important methods in the quantitative analysis of geologic data, such as probability, nonparametric statistics, and Fourier analysis, as well as data analysis methods such as the semivariogram and the process of kriging.
Book
The Physics of Glaciers
W.S.B. Paterson,John T. Andrews +1 more
TL;DR: In this paper, the transformation of snow to ice mass balance heat budget and climatology structure and deformation of ice hydraulics and glaciers glacier sliding deformation, subglacial till structures and fabrics in glaciers and ice sheets distribution of temperature in glaciers, flow of ice shelves and ice streams non-steady flow of glaciers, ice sheets surging and tidewater glaciers ice core studies.
Book
Principles of geographical information systems
TL;DR: This paper aims to provide a history of fuzzy logic in information handling and geostatistics and some of the techniques used to deal with fuzzy logic problems.
Journal ArticleDOI
Digital terrain modelling: A review of hydrological, geomorphological, and biological applications
TL;DR: In this article, the authors describe elevation data sources, digital elevation model structures, and the analysis of digital elevation data for hydrological, geomorphological, and biological applications.
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