Dynamika a rozšíření recentních svahových pohybů na úpatí Krušných hor | Abstrackt 1 ABSTRACT Recent mass movements currently comprise one of the main morphogenetic processes in the extensive anthropogenic relief of the foreground of the Krušné Hory Mountains in the Czech Republic. These mass movements result in several types of deep- seated slope failures, depending on the type of movement, lithological, structural, and geotechnical conditions and the water saturation of the landslide material. This thesis presents broad set of various methods of geomorphology, geophysics, engineering geology, dendrogeomorphology and geodesy in an attempt to fully understand the problem of slope failures in the Jezeří area located at the boundary between the Krušné Hory Mountains and the Most Basin (Czech Republic). An interdisciplinary approach has enabled an in-depth review of both the dynamics and development of recent slope failures as well as morphology and structure of slope failures. There are two sectors - Southeast and Southwest - with different types of slope failures. In the Southwest sector, mass movements occur in thick colluvial mantle and weathered Tertiary claystones. The main factors influencing their development include rainfall culminations, groundwater flowing from the valley of Šramnický Brook and...

The work is intent on the aplication of useful geodetic method for height off-road treads. The aim of the work is to survey and establish fixed point network for this monitoring. The teoretic part is intent on geodetic network and point fields and on aplication of geodetic method for geodetic monitoring throughout the country. In the practical part, there are described accessible methods for height profiles, description of choice method workmaship and grafic results processing.

The Northwestern part of the Příhrazská platform is known for its processes, the first scientifically studied movement occurred here in 1926 and had catastrophic consequences. This work deals with the evaluation of the selected continuous slope movements in the north- western part of Příhrazská platform and builds on previous measurements. The measured movements are compared with meteorological data, with the surrounding hydrogeological borehole data, and compared with other monitoring site in the vicinity. In the second part, the work focuses on clarifying the problem of the increased susceptibility of the monitored rock tower for weathering and comparison of the properties of sandstone material from this tower with surrounding sandstones from the vicinity and other localities. Attention is especially paid to the influence of the biological crusts, whose significant influence is confirmed. For the investigation field and laboratory methods were used in combination with the use of computer programs.

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

Com a urbanização crescente no Brasil, o mapeamento de eventos perigosos mostra-se cada vez mais necessário para que se reduzam transtornos socioeconômicos nos municípios brasileiros. O objetivo principal da pesquisa foi elaborar mapas de suscetibilidade a eventos perigosos de natureza geológica e hidrológica, para a área urbana e de expansão urbana (148,97 km²) do município de São Carlos – SP. A análise foi feita em ambiente de SIG (Sistemas de Informação Geográfica), e combinou abordagens qualitativas e quantitativas de mapeamento de eventos perigosos, propostas pelo Working Group Committee on Risk Assessment (1997). Como método, analisou-se a freqüência dos eventos históricos em função da área (km²) dos condicionantes cartografados nos mapas temáticos (probabilidades iniciais). Os condicionantes foram analisados isoladamente e combinados, na forma de classes de terreno. O inventário dos registros históricos (482 registros) dos eventos foi feito com os dados de jornais, defesa civil e imagens de satélite entre os anos de 1965 a 2016. Foram elaborados os mapas de suscetibilidade para: movimentos de encosta, erosão pluvial, solos colapsíveis e enchentes/inundações. O método utilizado mostrou-se eficiente, visto que os objetivos da pesquisa foram alcançados. Foi possível validar os mapas de suscetibilidade, com as características do meio físico observadas em trabalhos de campo e dados de ensaios geotécnicos. Os eventos mais críticos para o município são as enchentes/inundações e alagamentos, erosões pluviais e movimentos de encostas causam pequenos transtornos, principalmente em consequência do relevo suave da região. Apesar da base cartográfica estar na escala 1:10.000, os mapas são apresentados na escala 1:20.000, com o objetivo destes serem impressos em papéis no formato A1. / With the increasing urbanization in Brazil, hazardous events mapping has become increasingly necessary to reduce socioeconomic disorders in Brazilian citys. The main goal of the research was to elaborate susceptibility maps to dangerous events of geological and hydrological nature, for the urban area and urban expansion (148,97 km²) to the city of São Carlos - SP. The analysis was done in a GIS environment (Geographic Information Systems), and combined qualitative and quantitative approaches of hazardous events mapping, proposed by the Working Group Committee on Risk Assessment (1997). The frequency of historical events was analyzed according to the area of the conditioners mapped on the thematic maps (prior probabilitys). The conditioners were analyzed separately and then combined, in the form of land classes. The inventory of historical records (482 records) of events was done with acquired data from newspapers, civil defense and satellite images between the years 1965 to 2016. Susceptibility maps were developed for slope movements, water erosion, collapsible soils and floods. This method proved to be efficient, since the research objectives were achieved. It was possible to validate the susceptibility maps, with the characteristics of the physical environment observed in field work and geotechnical data. The most critical events in São Carlos are floods, rainfall erosions and slope movements cause minor damage, as a result of the region\'s soft relief. Although the cartographic base is in the 1:10.000 scale, the maps are presented in the 1:20.000 scale, with the purpose of being printed on A1 format paper.

Com a urbanização crescente no Brasil, o mapeamento de eventos perigosos mostra-se cada vez mais necessário para que se reduzam transtornos socioeconômicos nos municípios brasileiros. O objetivo principal da pesquisa foi elaborar mapas de suscetibilidade a eventos perigosos de natureza geológica e hidrológica, para a área urbana e de expansão urbana (148,97 km²) do município de São Carlos – SP. A análise foi feita em ambiente de SIG (Sistemas de Informação Geográfica), e combinou abordagens qualitativas e quantitativas de mapeamento de eventos perigosos, propostas pelo Working Group Committee on Risk Assessment (1997). Como método, analisou-se a freqüência dos eventos históricos em função da área (km²) dos condicionantes cartografados nos mapas temáticos (probabilidades iniciais). Os condicionantes foram analisados isoladamente e combinados, na forma de classes de terreno. O inventário dos registros históricos (482 registros) dos eventos foi feito com os dados de jornais, defesa civil e imagens de satélite entre os anos de 1965 a 2016. Foram elaborados os mapas de suscetibilidade para: movimentos de encosta, erosão pluvial, solos colapsíveis e enchentes/inundações. O método utilizado mostrou-se eficiente, visto que os objetivos da pesquisa foram alcançados. Foi possível validar os mapas de suscetibilidade, com as características do meio físico observadas em trabalhos de campo e dados de ensaios geotécnicos. Os eventos mais críticos para o município são as enchentes/inundações e alagamentos, erosões pluviais e movimentos de encostas causam pequenos transtornos, principalmente em consequência do relevo suave da região. Apesar da base cartográfica estar na escala 1:10.000, os mapas são apresentados na escala 1:20.000, com o objetivo destes serem impressos em papéis no formato A1. / With the increasing urbanization in Brazil, hazardous events mapping has become increasingly necessary to reduce socioeconomic disorders in Brazilian citys. The main goal of the research was to elaborate susceptibility maps to dangerous events of geological and hydrological nature, for the urban area and urban expansion (148,97 km²) to the city of São Carlos - SP. The analysis was done in a GIS environment (Geographic Information Systems), and combined qualitative and quantitative approaches of hazardous events mapping, proposed by the Working Group Committee on Risk Assessment (1997). The frequency of historical events was analyzed according to the area of the conditioners mapped on the thematic maps (prior probabilitys). The conditioners were analyzed separately and then combined, in the form of land classes. The inventory of historical records (482 records) of events was done with acquired data from newspapers, civil defense and satellite images between the years 1965 to 2016. Susceptibility maps were developed for slope movements, water erosion, collapsible soils and floods. This method proved to be efficient, since the research objectives were achieved. It was possible to validate the susceptibility maps, with the characteristics of the physical environment observed in field work and geotechnical data. The most critical events in São Carlos are floods, rainfall erosions and slope movements cause minor damage, as a result of the region\'s soft relief. Although the cartographic base is in the 1:10.000 scale, the maps are presented in the 1:20.000 scale, with the purpose of being printed on A1 format paper.