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1 lut 2022 · Cirques are typical erosional landforms of glaciers and have been used as bases for paleoclimate and paleoenvironment reconstruction and for understanding the interactions between glacial erosion, climate, and topography.
15 lis 2020 · This glacial cirque is shaped on the northern face of the Mulhacén peak (3479 m a.s.l. 37°03′12″N/3°18′41″W), Sierra Nevada, southern Spain. It includes several depositional and erosional glacial landforms that allowed reconstructing its environmental evolution since the last glacial cycle.
21 lis 2017 · We used ArcGIS to measure length, width, aspect, latitude and distance to coastline of each cirque. Palaeo-equilibrium-line altitudes (palaeo-ELAs) of palaeo-cirque glaciers were calculated using the altitude-ratio method, cirque-floor method and minimum-point method.
1 lut 2022 · This paper introduces an automated method to recognize and delineate cirques using DEMs based on a series of hydrological and morphological analyses, including delineating stream network, filtering streams, determining potential cirque threshold points, and delineating cirque outlines.
1 lis 2021 · The distribution of glacial cirques upon the Kamchatka peninsula, Far Eastern Russia, is systematically mapped from satellite images and digital elevation model data.
Landform mapping was complemented by morphometry and computer analysis, especially for glacial landforms such as cirques, troughs and drumlins, and some straightforward models were formulated.
21 maj 2022 · Early cirque development models focused on the idea that glacier movement is maximized by rotational flow (Lewis 1949), initiated by the weight of winter snow accumulations on the upper part of the glacier and summer ablation losses on the lower end of the glacier. In steep and small glaciers equilibrium would be restored by rotational slip.
