Thesis (Ph. D.)--Utrecht University, 2007. / Afterword and vita in both English and Dutch. Includes bibliographical references (p. 115-120).

Thesis--Utrecht. / Cover title. Summary in Dutch. Vita. Includes bibliographical references (p. 177-188).

Thesis--Utrecht. / Cover title. Summary in Dutch. Vita. Includes bibliographical references (p. 177-188).

Thesis (Ph. D.)--Uppsala University, 1990. / One map on folded sheet in pocket. Includes bibliographical references (p. 134-136).

Thesis (doctoral)--Chalmers tekniska högskola, 1983. / Errata slip inserted. Summary in English. Includes bibliographical references (p. 164-171).

The use of optical scanning methods in geomorpho-analysis Abstract Main goal of this thesis is to find out if it is possible to use Structure from motion (SfM) method for analyzing geomorphological objects. Four geomorphological features in three different places within Pilsen-North region was used for testing this method. These objects with very dissimilar dimensions and shapes was scanned for this testing in various light conditions. All used data-sets was entirely created by author of this thesis. The data was initially processed by Agisoft Photoscan Professional Ediditon v1.1.6 and VisualSFM v0.5.26 to create spatial models. These models was afterwards processed in CloudCompare v2.6.1 and MeshLab v1.3.3. This software was used for clipping and merging of 3D models and for converting 3D models in to real dimensions. These real sized spatial models was then contrasted together by creating comparing entities. Outcomes are evaluated in the thesis conclusion. Keywords: Structure from motion (SfM), SIFT, RANSAC

- Morphostructural analysis of Ethiopian Highland based on remote sensing The morphometric analysis of lineaments, valleys and signs of erosion taken from a digital elevation model (DEM) made it possible to not only confirm most of the conclusions of the morphotectonic development of the area from the previously published results of structural, petrological, tectonic and geochronological analyses from the Ethiopian Highlands, but to also to expand our knowledge by applying several new hypotheses. Faults, lineaments and valleys are predominantly oriented in a direction compatible to the published concepts of the tectonic development of the area. Overall, the most abundant NE-SW and NNE-SSW lines reflect a change of extension from a NW-SE to WNW-ESE direction during the Pliocene (~40ř rotation), in relation to the creation and development of the Main Ethiopian Rift. The most pronounced morphological manifestations of the extension of the MER and western Afar during the Quaternary are confined to the borders of the MER, and the maximum SOLR values indicate a very short-lived effect of the stress field on the development of the landscape. The directions of the Pre-Neogene rift structures to the NW-SE and WNW-ESE are compatible with the oldest elements of the current landscape, i.e. the most developed...

Ethiopia like other developing countries depends on domestic agricultural production, struggling with infrastructure and healthcare is also at a low level. Among these factors there is also added impact of catastrophic natural processes. Landslides in this area have caused enormous material damage and also human deaths. Effects of those losses are huge and locals are dealing with them difficuly. Therefore, prevention should be a priority concern. In theoretical part the basic facts about modeling and simulation of landslides susceptibility is presented. Those facts are complemented with specific researches from Ethiopian highlands. Furthermore, it describes the methodology that was used. It compares the real distribution of slope movements against the expected occurrence across the classes of input layers. An essential part of the model is mapping work, supported with terrain work, during which 242 landslides was mapped. Model parameters are: slope, altitude, lithology, land cover, distance from geological boundary and distance to river. Slope was determined as most significant factor. Used methodology is universally applicable and the results it generates match reality well. Key words: slope movements, natural hazards, susceptibility analysis, geomorphology, Ethiopian Highland

This thesis deals with the evaluation of trends and changes over time in the selected area, specifically in the cadastral area Rapšach. The evaluation was made in terms of land use and also in terms of ecological stability. These analyzes were conducted in three seasons, was a comparison of the current state of the situation in 1998 and the situation in 1952. At first current status was from the orthophoto found and supported by field research. The remaining two periods were analyzed from historic aerial photographs, and informations were specified with the help of historically photographs and written documents from the chronicle of the village Rapšach.

Novohradské Mountains are an unique area, that it has been little searched, not only in term of geomorphology. The aim of this diploma thesis is to map geomorphologicly the most interesting localities by the help of GPS technology. Further on the basis of mapping to create the detailed geomorphologic plans in the application ArcGIS 9.1. and to write a text, that describes single forms of the relief on the chosen localities. There is also brief physical-geographic characteristic of the monitored area. The GPS mapping was in progress in the years 2006 and 2007. This work was particularly supported by grant AVČR KJB 300460501.