Results 121 to 130 of about 2,262,975 (282)

Radar scattering of linear dunes and mega-yardangs: Application to Titan [PDF]

, 2015
The Ku-band (13.8 GHz - 2.2 cm) RADAR instrument onboard the Cassini-Huygens spacecraft has revealed the richness of the surface of Titan, as numerous seas, lakes, rivers, cryo-volcanic flows and vast dune fields have been discovered. Linear dunes are a major geomorphological feature present on Titan, covering up to 17% of its surface, mainly in ...
arxiv   +1 more source

The impact of the structural framework of the North German Basin on Pleistocene tunnel‐valley formation

Boreas, EarlyView.
This study contains a comprehensive regional analysis of the orientations of tunnel valleys, faults and salt structures in the North German Basin, aiming to identify correlations that might indicate a structural control on tunnel‐valley formation. A structural control on tunnel‐valley formation has been repeatedly postulated and correlations have been ...
Jörg Lang, Anke Bebiolka, Vera Noack, Julia Schützke, Sarah Weihmann, Sonja Breuer   +5 more
wiley   +1 more source

Automated delineation and morphometry of unclassified subglacial bedforms

Boreas, EarlyView.
We present an automated tool for mapping and analysing subglacial bedforms using volumetric obscurance, without classification. Tested on ArcticDEM data, the method produces bedform outlines with 75% correspondence compared to manually digitized maps.
Sofyane Hesni, Paul Bessin, Edouard Ravier, Olivier Bourgeois, Jean Vérité, Jean‐François Buoncristiani   +5 more
wiley   +1 more source

Dissecting earthworm diversity in tropical rainforests

Ecography, EarlyView.
Tropical rainforests are among the most emblematic ecosystems in terms of biodiversity. However, our understanding of the structure of tropical biodiversity is still incomplete, particularly for certain groups of soil organisms such as earthworms, whose importance for ecosystem functioning is widely recognised.
Arnaud Goulpeau, Mickaël Hedde, Pierre Ganault, Emmanuel Lapied, Marie-Eugénie Maggia, Eric Marcon, Thibaud Decaëns   +6 more
wiley   +1 more source

APPLICATION OF THE CONCEPT OF GEOMORPHONS TO THE LANDFORM CLASSIFICATION IN TOCANTINS STATE, BRAZIL

, 2017
This paper presents a classification system for landform elements. The classification and mapping methods for landform elements with a DEM are based on the principle of pattern recognition and the concept of geomorphons.
L. Robaina, Romario Trentin, S. S. V. D. Cristo, Anderson Augusto Volpato Sccoti   +3 more
semanticscholar   +1 more source

Factors impacting the variability of post‐fire forest regeneration in central European pine plantations

Restoration Ecology, EarlyView.
Fire is increasingly posing a risk to forests and plantations, even in the temperate latitudes of central Europe. Little is known about fire ecology in this region, and therefore, appropriate approaches for the management and reforestation of burned sites are mostly lacking.
Florent Jouy, Maren Schüle, Yojana Adhikari, Anja Binder, Danica Clerc, Werner Gerwin, Thilo Heinken, Thomas Raab, Frank Repmann, Susanne Rönnefarth, Marina Schirrmacher, Marie‐Therese Schmehl, Jens Schröder, Pierre L. Ibisch   +13 more
wiley   +1 more source

Convolutional Neural Network Segmentation for Satellite Imagery Data to Identify Landforms Using U-Net Architecture [PDF]

arXiv
This study demonstrates a novel use of the U-Net architecture in the field of semantic segmentation to detect landforms using preprocessed satellite imagery. The study applies the U-Net model for effective feature extraction by using Convolutional Neural Network (CNN) segmentation techniques.
arxiv  

Quantitative sedimentological analysis of the aeolian–fluvial Triassic Sherwood Sandstone Group, Cheshire Basin, UK

Sedimentology, EarlyView.
ABSTRACT Sedimentological analysis of the outcropping Sherwood Sandstone Group, northern Cheshire Basin, UK, documents the preserved stratigraphic expression of water table‐controlled aeolian‐dominated erg‐margin successions (Wilmslow Sandstone Formation and lower Helsby Sandstone Formation), overlain by dryland fluvial deposits (middle Helsby ...
Grace I. E. Cosgrove, Mahmud Alkathery, Mohammed Al‐Masrahy, Luca Colombera, Nigel P. Mountney, David B. Thompson   +5 more
wiley   +1 more source

Mining an Anthropocene in Japan: On the making and work of geological imaginaries

Transactions of the Institute of British Geographers, EarlyView.
Short Abstract This article addresses how the lithic and the drift might be reworked as an Anthropocene material outside of a chronostratigraphy. Revisiting the finding of a floating fern fossil at the Hashima mine, we delve into a complex array of Geological imaginaries, and undertake our own speculative work.
Deborah P. Dixon, Carina J. Fearnley, Mark Pendleton   +2 more
wiley   +1 more source

Geoglyphs of Titicaca as an ancient example of graphic design [PDF]

arXiv, 2010
The paper proposes an ancient landscape design as an example of graphic design for an age and place where no written documents existed. It is created by a network of earthworks, which constitute the remains of an extensive ancient agricultural system. It can be seen by means of the Google satellite imagery on the Peruvian region near the Titicaca Lake,
arxiv