Results 61 to 70 of about 333 (186)

Estimation of permafrost ice reserves in the source area of the Yellow River using landform classification

Shui kexue jinzhan, 2017
Ground ice is a distinguishing characteristic of permafrost soil.As permafrost profoundly influences the hydrology, ecology and engineering design in cold regions, it is important to accurately estimate the underground ice reserves of permafrost.Thus ...
WANG Shengting, SHENG Yu, CAO Wei, LI Jing, MA Shuai, HU Xiaoying   +5 more
doaj   +1 more source

Spatial Patterns of Glacier‐Wetland Hydrological Connectivity in the Rapidly Deglaciating Peruvian Andes

Earth's Future, Volume 14, Issue 6, June 2026.
Abstract High‐altitude wetlands are critical ecosystems that store water, regulate downstream flows, and sustain biodiversity. Their persistence is tightly linked to continuous water inputs from precipitation, groundwater, snow and glacier melt, making them highly vulnerable to climate‐driven shifts in mountain hydrology. Rapid glacier retreat, altered
D. Xuan, R. Becker, M. Vargas Valverde, B. J. Davies, J. C. Ely, O. King, N. Montoya, C. Onof, A. C. Ross, W. Buytaert   +9 more
wiley   +1 more source

Mapping Earth Hummocks in Daisetsuzan National Park in Japan Using UAV-SfM Framework

Remote Sensing
Earth hummocks are periglacial landforms that are widely distributed in arctic and alpine regions. This study employed an uncrewed aerial vehicle (UAV) and a structure from motion (SfM) framework to map and analyze the spatial distribution and ...
Yu Meng, Teiji Watanabe, Yuichi S. Hayakawa, Yuki Sawada, Ting Wang   +4 more
doaj   +1 more source

Landsystems of the tropical high Peruvian Andes: Glaciers, lakes, wetlands and water resources in the Cordillera Vilcanota

Earth Surface Processes and Landforms, Volume 51, Issue 5, May 2026.
We outline the geomorphological relationships between glaciers, lakes and bofedal wetlands, and the way in which moraines, talus slopes and sandar interact with catchment hydrology in the tropical Andes of Peru. Bofedales are well developed within glacial limits, with glacial processes such as erosion and formation of moraines providing the poorly ...
Bethan Davies, Tom Gribbin, Owen King, Tom Matthews, Jan R. Baiker, Rike Becker, Wouter Buytaert, Jonathan Carrivick, Fabian Drenkhan, Juan‐Luis García, Nilton Montoya, Baker Perry, Jeremy Ely   +12 more
wiley   +1 more source

The glacial origins of relict ‘pingos’, Wales, UK

Annals of Glaciology, 2019
Ramparted depressions (doughnut-shaped debris-cored ridges with peat- and/or sediment-filled central basins) are commonly perceived to represent the relict collapsed forms of permafrost ground-ice mounds (i.e. pingos or lithalsas).
Neil Ross, Peter Brabham, Charles Harris
doaj   +1 more source

Geomorphological mapping of the Becca d'Aver deep‐seated gravitational slope deformation (Aosta Valley, Italy) based on multi‐scale and multi‐sensor analysis

Earth Surface Processes and Landforms, Volume 51, Issue 5, May 2026.
Geomorphological characterization of the DsGSD enables us to identify the sources of sediment that could be mobilized as debris flows. In the area, pseudo‐badlands morphotype has been defined and mapped, representing the main sources of risk beside abandoned quarry deposits.
Alberto Bosino, Francesco Barbadori, Pierluigi Confuorto, Danilo Godone, Mattia De Amicis, Federico Raspini, Sarah Aliu, Olga Nardini, Ahmed Hafiz, Samuel Pelacani, Daniele Ferrari Trecate, Michael Maerker, Martina Cignetti   +12 more
wiley   +1 more source

Deciphering transitions within ice–debris complexes in the Northern Tien Shan through surface characteristics and internal structure

Earth Surface Processes and Landforms, Volume 51, Issue 5, May 2026.
Geophysical (GPR and ERT) data reveal a transition from buried glacial ice to an ice–debris mixture within ice–debris complexes in Kazakhstan; this transition is reflected in surface morphological and kinematic characteristics. We identify some relationships between internal ice content and associated surface kinematics but caution against ...
Ella Wood, Tobias Bolch, Vassiliy Kapitsa, Francesca Baldacchino, Viktor Blagoveshchensky, Foteh Rahimov, Alibek Taskynbayev, Lothar Schrott   +7 more
wiley   +1 more source

Origin of Late Noachian‐Early Hesperian Valley Networks on Mars: Insights From Landform Evolution and Ice Sheet Modeling

Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Dendritic valley networks on Mars have been cited as evidence for a warm and wet Noachian Mars, permitting rainfall precipitation and surface runoff. However, the climatic conditions required to sustain rainfall on early Mars remain debated.
K. R. Karpenko, J. L. Fastook, J. W. Head, A. D. Howard, C. I. Fassett, J. L. Dickson, K. E. Scanlon, B. D. Boatwright   +7 more
wiley   +1 more source

Aspect Asymmetry in Martian Gullies: A Topographic Signature of Their Formation Process?

Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract On Mars, erosional‐depositional landforms named gullies provide natural experiments for studying the topographic signature of the processes that act on hillslope evolution. High‐resolution topographic data were used to quantitatively compare the steepness of opposing walls in gully alcoves incised into ice‐rich slopeside mantling deposits.
A. Noblet, G. R. Osinski, S. J. Conway
wiley   +1 more source

The summer heatwave in 2022 and its role in changing permafrost and periglacial conditions at a historic mountain pass in the Eastern Alps (Hochtor, Hohe Tauern Range, Austria). [PDF]

Permafr Periglac Process, 2023
Kellerer-Pirklbauer A, Eulenstein J.
europepmc   +1 more source