Results 101 to 110 of about 2,262,975 (282)
Modelling transverse dunes [PDF]
, 2003 Transverse dunes appear in regions of mainly unidirectional wind and high sand availability. A dune model is extended to two dimensional calculation of the shear stress. It is applied to simulate dynamics and morphology of transverse dunes which seem to reach translational invariance and do not stop growing.
arxiv +1 more source
Investigation on protalus ramparts in the Swiss Alps [PDF]
Geographica Helvetica, 2015 The origin and classification of landforms denominated as "protalus ramparts" in the scientific literature is a problem that is far from being resolved.
C. Scapozza
doaj +1 more source
Beyond Elevation: New Metrics to Quantify the Relief of Mountains and Surfaces of Any Terrestrial Body [PDF]
arXiv, 2022 Elevation has long been the standard for quantifying the relief of mountains and other landforms on Earth and beyond. Nevertheless, elevation has its limitations. By itself, a location's elevation reveals little about its vertical position relative to its surroundings, especially for seabed and extraterrestrial features.
arxiv
GIScience & Remote Sensing, 2022 Land surface curvature (LSC) is a basic attribute of topography and influences local effects of gravitational energy and surface material transport.
Guanghui Hu +6 more
doaj +1 more source
Crater-like landform in Bayuda desert (a processing of satellite images) [PDF]
arXiv, 2010 The paper is proposing a survey of a region in Sudan, the Bayuda desert, using the satellite images as obtained from Google Maps. The images reveal the ring granitic structure of the region enclosed by a bend of river Nile. To enhance the features of the landform, images are processed with a method based on fractional calculus, able to increase the ...
arxiv
Global warNing: challenges, threats and opportunities for ground beetles (Coleoptera: Carabidae) in high altitude habitats [PDF]
arXiv, 2020 Aim of this paper is to provide the first comprehensive synthesis about ground beetle (Coleoptera: Carabidae) distribution in high altitude habitats. Specifically, the attention is focused on the species assemblages living on the most common ice-related mountain landforms (glaciers, debris-covered glaciers, glacier forelands and rock glaciers) and on ...
arxiv
Enhancing the Google imagery using a wavelet filter [PDF]
arXiv, 2010 In some previous papers we proposed the use of free software for a processing of the Google satellite imagery. Here we discuss the use of a wavelet filter for the same purposes. This filter is a tool included in a freely downloadable software (Iris), well-known for the processing of astronomical images.
arxiv
Journal of Tropical Soils, 2008 Application of GIS technology (Geographic Information System), that is Digital Elevation Models (DEMs) for the analysis of landform or slope have been conducted in the Citarum watershed, Purwakarta West Java Province from August until November 2003 ...
Salwati, Busyra Buyung Saidi
doaj
Andean terraced hills (a use of satellite imagery) [PDF]
arXiv, 2010 The aim of this paper is in stimulating the use of satellite imagery, in particular the free service of Google Maps, to investigate the distribution of the agricultural technique of terraced hills in Andean countries, near Titicaca Lake. In fact, satellite maps can give a clear view of the overall surface modified by human work, being then a precious ...
arxiv
Fluids mobilization in Arabia Terra, Mars: depth of pressurized reservoir from mounds self-similar clustering [PDF]
, 2019 Arabia Terra is a region of Mars where signs of past-water occurrence are recorded in several landforms. Broad and local scale geomorphological, compositional and hydrological analyses point towards pervasive fluid circulation through time. In this work we focus on mound fields located in the interior of three casters larger than 40 km (Firsoff, Kotido
arxiv +1 more source