Results 1 to 10 of about 1,200 (173)
Characterizing bed roughness on the Antarctic continental margin
Journal of Glaciology, 2023 Spatial variability in bed topography, characterized as bed roughness, impacts ice-sheet flow and organization and can be used to infer subglacial conditions and processes, yet is difficult to quantify due to sparse observations. Paleo-subglacial beds of
Santiago Munevar Garcia +3 more
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Geoscientific Model Development, 2022 Abstract. Following the tradition of modeling fluvial landscape evolution, a novel approach describing glacial erosion based on an empirical stream power law was proposed. This approach differs substantially from well-established process-based models applied to describe glacial erosion in mountain landscapes. Outstanding computational performance but a
Moritz Liebl +4 more
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Topographic modulation of outlet glaciers in Greenland: a review
Annals of Glaciology, 2022 Bed topography is a critical parameter for determining the modern-day and future dynamics of ice sheets and their outlet glaciers. This is because the topography controls the state of stress for glaciers.
Ginny Catania, Denis Felikson
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Journal of Glaciology, 2023 Glacial ripping involves glaciotectonic disintegration of rock hills and extensive removal of rock at the ice-sheet bed, triggered by hydraulic jacking caused by fluctuating water pressures.
Maarten Krabbendam +4 more
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Exploring exogenous controls on short- versus long-term erosion rates globally [PDF]
Earth Surface Dynamics, 2022 Erosion is directly tied to landscape evolution through the relationship between sediment flux and vertical lowering of the land surface. Therefore, the analysis of erosion rates across the planet measured over different temporal domains may provide ...
S.-A. Chen +8 more
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Investigation of geodiversity in Lar basin, northern Iran [PDF]
Sustainable Earth Trends, 2022 The diversity of natural processes including geological diversity (bedrock), geomorphic diversity (landform), sediment characteristics, geo-ecosystem in the Lar basin of Iran indicates the existence of geodiversity.
Manijeh Ghahroudi Talia +1 more
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Journal of Glaciology, 2021 The recently-advancing Taku Glacier is excavating subglacial sediments at high rates over multi-decadal timescales. However, sediment redistribution over shorter timescales remains unquantified.
Jenna M. Zechmann +4 more
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Volcanic Landforms and Landscapes of the East Carpathians (Romania) and Their Geoheritage Values
Land, 2022 The Neogene–Quaternary volcanic range running along the East Carpathians in Romania, extends from the Oaș Mountains, in the north-west, to the South Harghita Mountains and the Perșani Mountains, in the south-east, as part of the broader volcanic province
Alexandru Szakács, Marinel Kovacs
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Characterization of glacial silt and clay using automated mineralogy
Annals of Glaciology, 2019 Glacial erosion produces vast quantities of fine-grained sediment that has a far-reaching impact on Earth surface processes. To gain a better understanding of the production of glacial silt and clay, we use automated mineralogy to quantify the ...
Jeff W. Crompton +2 more
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Bed topography and subglacial landforms in the onset region of the Northeast Greenland Ice Stream
Annals of Glaciology, 2020 The Northeast Greenland Ice Stream (NEGIS) is an important dynamic component for the total mass balance of the Greenland ice sheet, as it reaches up to the central divide and drains 12% of the ice sheet.
Steven Franke +7 more
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