Ice-free geomorphometry of Queen Maud Land, East Antarctica: 1. S\^oya Coast

TL;DR

This study models and maps the topography of ice-free areas on the Soya Coast, Queen Maud Land, Antarctica, providing detailed morphometric data for diverse scientific research fields.

Contribution

It introduces a comprehensive geomorphometric modeling approach for key ice-free Antarctic terrains using high-resolution elevation data.

Findings

Models and maps of 11 morphometric variables were produced.

The topography of the Soya Coast was described quantitatively and reproducibly.

The data supports further geological, ecological, and glaciological research.

Abstract

Geomorphometric modeling and mapping of ice-free Antarctic areas is promising for obtaining new quantitative knowledge about the topography of these unique landscapes and for the further use of morphometric information in Antarctic research. Within the framework of a project of creating a physical geographical thematic scientific reference geomorphometric atlas of ice-free terrains of Antarctica, we performed geomorphometric modeling and mapping of key ice-free areas of the S\^oya Coast (the east coast of L\"utzow-Holm Bay, Queen Maud Land, East Antarctica). These include the Flatvaer (Ongul) Islands, Langhovde Hills, Breidv\r{a}gnipa, Skarvsnes Foreland, Skallen Hills, and Skallevikhalsen Hills. As input data for geomorphometric modeling and mapping, we used five fragments of the Reference Elevation Model of Antarctica. For the six ice-free areas and adjacent glaciers, we derived models and maps of eleven most scientifically important morphometric variables (i.e., slope, aspect, horizontal curvature, vertical curvature, minimal curvature, maximal curvature, catchment area, topographic wetness index, stream power index, total insolation, and wind exposition index). The obtained models and maps describe the ice-free topography of the S\^oya Coast in a rigorous, quantitative, and reproducible manner. New morphometric data can be useful for further geological, geomorphological, glaciological, ecological, and hydrological studies of this region.