Abschlussarbeiten
Persistence of Physical Patterns of a Mountain Landscape – Detection and Map Representation
Art der Abschlussarbeit
Magisterarbeit
Autoren
- Vázquez Arias, Carlos Ernesto
Betreuer
- Dr.rer.nat. Nikolas Prechtel
Abstract
The monitoring of complex environments such as mountain landscapes, where it is difficult to measure physical parameters in situ due to their inherent conditions, continues to be a ma-jor interest of the environmental research agenda. Remotely sensed data represents one of the solutions to this concern. The present study is based on the Ecological GIS for the Russian Altai (ALTAI-1000 GIS) which is one of the most comprehensive remote area mountain GIS worldwide. The main goal of the present study is to continue with the integration of this GIS, working on the characterization of landscape units through physical surface parameters gen-erated by operational satellite observations. This characterization requires the detection of persistent patterns in space and time which is one of the main goals of geospatial analysis. Statistical analyses were performed in selected standard MODIS products (Normalized Dif-ference Vegetation Index and Land Surface Temperature) with time coverage of 12 years (2001-2012). The study added value to both datasets by producing a consistent series of sta-tistics which enables comparisons to be made across space and time. In order to perform this, tests were developed using R language for statistical computing and other open source tools. Time series were extracted and anomaly maps for the specific variables were generated. The identification of general trends and the definition of a generic approach to analyze raster data sets of time-dependent variables were some of the most important tasks. The results show the capabilities of map algebra to generate valuable information and both weaknesses and strengths of the selected open source solutions to perform geospatial analysis.
Zugeordnete Forschungsschwerpunkte
- Geoinformationssysteme für Umweltmonitoring
- Fernerkundungskartographie
Zugeordnete Forschungsprojekte
- Geodatenerhebung, GIS-Aufbau und Kartenerstellung für den Katun-Nationalpark, Altai-Gebirge (Sibirien)
Schlagwörter
Altai, Mountain landscapes, persistent patterns, Map Algebra, MODIS, Normal-ized Difference Vegetation Index, Land Surface Temperature
Berichtsjahr
2013