Geomorphometric modeling and mapping of Antarctic oases ...

• Main Author: Florinsky, I. V.
• Format: Report
• Language: unknown
• Published: arXiv 2023
• Subjects: Geophysics physics.geo-ph; FOS Physical sciences; Antarctic; Fildes; Fildes peninsula; Larsemann Hills; Thala Hills; Antarc*; Antarctica
• Online Access: https://dx.doi.org/10.48550/arxiv.2305.07523; https://arxiv.org/abs/2305.07523

Geomorphometric modeling is widely used in geosciences. However, geomorphometric modeling and mapping of Antarctic oases has not been performed so far. This article presents the first results of our work on geomorphometric modeling and mapping of several Antarctic oases including the Larsemann Hills, Thala Hills, Schirmacher oasis, and Fildes Peninsula. As input data, we used fragments of the Reference Elevation Model of Antarctica. For each territory, we derived digital models of the following 17 morphometric variables from the extracted and edited digital elevation models: slope, aspect, horizontal curvature, vertical curvature, mean curvature, Gaussian curvature, minimal curvature, maximal curvature, unsphericity curvature, difference curvature, vertical excess curvature, horizontal excess curvature, ring curvature, accumulation curvature, catchment area, topographic index, and stream power index. Derived geomorphometric maps can be useful for structural geological and process-oriented hydrological ... : 84 pages, 72 figures ...