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Alpine glaciers retreat after little ice age and its relation to climate changes
Dutková, Alena ; Sládek, Ivan (advisor) ; Zelenka, Přemysl (referee)
This thesis deals with climatic changes and its influence on mountain glaciers in Alps since the little ice age to present. Knowledge published in domestic and foreign literature is applied to the example of Morteratsch glacier in swiss Alps and high elevation meteorological station Sonnblick in austrian Alps. Alpine mountain range is one of the most researched and the longest populated mountain ranges in the world. For this reasons we have for use long time period of meteorological and glaciological datasets.
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Retreat of mountain glaciers from the Little Ice Age maxima in western Canada
Balkhausen, Maximilian ; Margold, Martin (advisor) ; Engel, Zbyněk (referee)
The Little Ice Age is a term describing a period of significant cooling compared to the long- term average of the current interglacial. During this period, there was a significant expansion of mountain glaciation worldwide. This study deals the retreat of mountains glaciers from the Little Ice Age maxima in western Canada. A total of 60 glaciers were mapped in three study areas in the mountains of northern British Columbia along the west-east climate transect. The study areas are located in the northern Coast Mountaisn, the northern Interior Mountains and the northern Canadian Rocky Mountains. The monitored glaciers were manually mapped using Landsat satellite imagery from 1977, 1987, 1997, 2007 a 2017. The glacier extent during the Little Ice Age maxima was mapped using PlanetScope satellite imagery with a resolution of 3 m, where it was possible to trace moraines from this maxima. The decline of the glacial area in the northern Coast Mountains from the Little Ice Age maxima to 2017 was 22,1 %, in the northern Interior Mountains 41,3 % and in the northern Canadian Rocky mountains 41,0 %. High variability was found for the relative glacier retreat among smaller glaciers in all study areas. This suggests that glacier response to climate change is not only conditioned by climatic factors, but also by...
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The Glacial Retreat in the Cordillera Blanca since the Littel Ice Age
Dobíhal, Michal ; Vilímek, Vít (advisor) ; Emmer, Adam (referee)
Michal Dobíhal Studijní program: Geografie Studijní obor: Fyzická geografie a geoinformatika Bakalářská práce Vedoucí práce, školitel: Doc. RNDr. Vít Vilímek, CSc. The glacial retreat in the Cordillera Blanca since the Little Ice Age ABSTRACT: The term Little Ice Age refers to a cooling period of time, as a result of this cooling mountain glaciers experienced significant advance in many parts of the world. Conventionally, the period between the 16th century and the middle of the 19th century is stated for the Little Ice Age, but its course and time placement differs in individual world regions. Based on research of scientific literature, this thesis aims at describing correct time placement of the Little Ice Age in the southamerican mountain range Cordillera Blanca and the expanse of the glacier retreat since its maximum till the present. Methods of lichenometry used for dating "Little Ice Age" moraines are mentioned as well. In the analytical part, the area of the glaciation of selected glaciers from the Little Ice Age maximum and from the present is compared using polygon measurement and satellite images. The extrapolation of this method is subsequently made on other selected glaciers, whose moraines have not been dated yet. Keywords: Cordillera Blanca, Little Ice Age, glacial retreat, moraine, lichenometry
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Alpine glaciers retreat after little ice age and its relation to climate changes
Dutková, Alena ; Sládek, Ivan (advisor) ; Zelenka, Přemysl (referee)
This thesis deals with climatic changes and its influence on mountain glaciers in Alps since the little ice age to present. Knowledge published in domestic and foreign literature is applied to the example of Morteratsch glacier in swiss Alps and high elevation meteorological station Sonnblick in austrian Alps. Alpine mountain range is one of the most researched and the longest populated mountain ranges in the world. For this reasons we have for use long time period of meteorological and glaciological datasets.
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