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Fig. 7. Mean slopes of the Grosser Arbersee cirque in relation to the area (2D).

Figure 7 Mean slopes of the Grosser Arbersee cirque in relation to the area (2D).

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Fig. 1. Model of a system of a “typical glacial cirque of the Bohemian Forest”. The study of morphometry and development of cirques was connected in a paper dealing with glacial cirques in the Ben Ohau Range, New Zealand (Brook et al. 2006). The authors argued that glacial cirques create an evolutionary model of morphological changes depend- ing on time. According to this model, the cirques developed from relatively shallow forms (with respect to the variability of the sites where cirques began forming — gullies, landslide scars etc.) to deeper and longer forms. They also stated the rate of the development of the cirques over time. According to the results (Brook et al. 2006) the development of a “classic — fully developed cirque” takes ca. 750 ka of glacial occupancy. Nevertheless, the landforms approaching the morphology of a glacial cirque develop after ca. 400 ka of glacial occu- pancy.
Fig. 1. Model of a system of a “typical glacial cirque of the Bohemian Forest”. The study of morphometry and development of cirques was connected in a paper dealing with glacial cirques in the Ben Ohau Range, New Zealand (Brook et al. 2006). The authors argued that glacial cirques create an evolutionary model of morphological changes depend- ing on time. According to this model, the cirques developed from relatively shallow forms (with respect to the variability of the sites where cirques began forming — gullies, landslide scars etc.) to deeper and longer forms. They also stated the rate of the development of the cirques over time. According to the results (Brook et al. 2006) the development of a “classic — fully developed cirque” takes ca. 750 ka of glacial occupancy. Nevertheless, the landforms approaching the morphology of a glacial cirque develop after ca. 400 ka of glacial occu- pancy.
‘cirque median axis passes through the middle of the sill and divides the cirque map area into two equal parts (definition according to Evans 1977) Table 1. Selected morphometric characteristics of investigated cirques.
‘cirque median axis passes through the middle of the sill and divides the cirque map area into two equal parts (definition according to Evans 1977) Table 1. Selected morphometric characteristics of investigated cirques.
Fig. 3. Definition of the measured variables in the cirque of Cerné Lake: (1) area [ha], (2) length [m], (3) width [m], (4) maximum altitude [m a.s.1.], (5) minimum altitude [m a.s.1.]. Ree EE ke eee a Unfortunately, it was not possible to obtain data from detailed terrain research from the all areas. Therefore, it was impossible to incorporate features of accumulation areas into the analysis, because its delimitation (in contrast to the bottom of the cirques) was very ambigu- ous. Conversely, deflation plateaus were defined as plateaus situated near the cirques with gradient 0—12° (without consideration of aspect).
Fig. 3. Definition of the measured variables in the cirque of Cerné Lake: (1) area [ha], (2) length [m], (3) width [m], (4) maximum altitude [m a.s.1.], (5) minimum altitude [m a.s.1.]. Ree EE ke eee a Unfortunately, it was not possible to obtain data from detailed terrain research from the all areas. Therefore, it was impossible to incorporate features of accumulation areas into the analysis, because its delimitation (in contrast to the bottom of the cirques) was very ambigu- ous. Conversely, deflation plateaus were defined as plateaus situated near the cirques with gradient 0—12° (without consideration of aspect).
Fig. 4. Defined forms in the cirque of the Cerné Lake with the deflation platform.
Fig. 4. Defined forms in the cirque of the Cerné Lake with the deflation platform.
Fig. 5. Cumulative vector diagram of cirques in the Bohemian Forest (Czech and German part).
Fig. 5. Cumulative vector diagram of cirques in the Bohemian Forest (Czech and German part).
Fig. 6. Relationship between mean slopes, area (2D) and altitude; the example from the cirque of PraSilské Lake.
Fig. 6. Relationship between mean slopes, area (2D) and altitude; the example from the cirque of PraSilské Lake.
Table 2. Summary of the cirques size data. Table 3. Results of correlation analysis between the morphometric characteristics of the investigated cirques.
Table 2. Summary of the cirques size data. Table 3. Results of correlation analysis between the morphometric characteristics of the investigated cirques.
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