Results 121 to 130 of about 5,146 (301)

Estimation of glacier ice extinction using long-wavelength airborne Pol-InSAR

, 2013
In recent years there has been increased interest in using synthetic aperture radar (SAR) to study and monitor glaciers and ice sheets for glaciological and climate change research.
Sharma, Jayanti, Hajnsek, Irena, Moreira, Alberto, Papathanassiou, Konstantinos   +3 more
core   +1 more source

From Growing Conditions to Composite Performance: Acid‐Engineered Algerian Sisal Fibers for Sustainable Bio‐Epoxy Composites

Polymer Composites, EarlyView.
High‐Performance Sustainable Ski Core Bio‐Composite Derived from Bio‐Epoxy and Sisal Sibers Systems. ABSTRACT In pursuit of sustainable and high‐performance materials, this work investigates the potential of Algerian sisal fibers as renewable reinforcements in bio‐epoxy composites.
M. A. Kacem, R. Halimi, O. Duncan, T. Allen, M. Bodaghi   +4 more
wiley   +1 more source

Spatial Variability of Permafrost and Active Layer Thickness in a Forested Hillslope of the Taiga Shield

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT Under continued climate warming, understanding present‐day permafrost distribution and the controls on ground thaw are critical for predicting permafrost thaw trajectories and associated implications. This study presents a high‐resolution investigation of permafrost extent and active layer thickness (ALT) across a coniferous forested hillslope
Alana Muenchrath, Christopher Spence, Andrew Ireson   +2 more
wiley   +1 more source

Rapid sequestration of rock avalanche deposits within glaciers

, 2015
Topographic development in mountainous landscapes is a complex interplay between tectonics, climate and denudation. Glaciers erode valleys to generate headwall relief, and hillslope processes control the height and retreat of the peaks.
Rosser, Nicholas, Dunning, Stuart, Rosser, N.J., McColl, Samuel, Reznichenko, Natalya, McColl, S.T., Dunning, S.A., Reznichenko, N.V.   +7 more
core   +1 more source

The Age and Origin of Block Deposits in the Victorian Alps, Australia

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT Large periglacial block deposits are found in the mountains of southeastern Australia. Despite their widespread distribution, their mode of formation and age are poorly understood. These landforms hold considerable potential to shed light on the nature of cooling during glacial periods. In this paper we present a new study of block deposits in
Timothy T. Barrows, Michelle S. Worland, Julian Murton, Stephanie C. Mills, L. Keith Fifield   +4 more
wiley   +1 more source

Deciphering Freeze–Thaw Dynamics In Rockwalls: A Novel Approach for High Accuracy Regional‐Scale Modeling

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT Using a large and novel array of instruments on five rockwalls in northern Gaspesia, their respective surface energy balances were calculated and their thermal regimes were measured and modeled to depths exceeding the seasonal frost penetration.
Tom Birien, Francis Gauthier
wiley   +1 more source

Glacial lakes control ice flow: new insights from satellite SAR PO-SBAS observations in Duiya Glacier, southern Tibetan Plateau

International Journal of Digital Earth
This study investigates the effects of glacial lakes on the flow velocities of Duiya Glacier, southern Tibetan Plateau, by employing satellite Synthetic Aperture Radar (SAR) Pixel-Offset-Tracking Small-Baseline-Subset (PO-SBAS) technology. Duiya Glacier,
Yueling Shi, Tao Che, Jiawen Bao, Xiaowen Wang, Guoxiang Liu, Qiang Bie, Yi He, Renzhe Wu, Dongdong Feng   +8 more
doaj   +1 more source

Capturing the Multi‐Decadal Evolution of Glacier–Permafrost Interactions in a High‐Alpine Environment (Ritord, Western Swiss Alps)

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT This study investigates the multi‐decadal evolution of a glacier forefield under permafrost conditions in the Combins Massif (western Swiss Alps). A multi‐method approach based on historical and recent datasets is used to analyze its landform components.
Julie Wee, Hanne Hendrickx, Sebastián Vivero   +2 more
wiley   +1 more source

The equilibrium flow and mass balance of the Taku Glacier, Alaska 1950–2006 [PDF]

The Cryosphere, 2008
The Taku Glacier, Alaska has advanced 7.5 km since the late nineteenth century, while all other primary outlet glaciers of the Juneau Icefield are in retreat.
M. S. Pelto, M. M. Miller, G. W. Adema, M. J. Beedle, S. R. McGee, K. F. Sprenke, M. Lang   +6 more
doaj  

“Cold Tropics”: Permafrost Existence and Thickness on Eastern Nevado Coropuna (Southern Peruvian Andes) Revealed by Ground‐Penetrating Radar and Geoelectrical Soundings

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT The existence of permafrost was explored at tropical latitude on Nevado Coropuna (southern Peruvian Andes) using a combination of ground‐penetrating radar (GPR) and vertical electrical sounding (VES) in order to strengthen the mutual validation of data processing and interpretation.
Velnia Chacca, Ramón Pellitero, Adriano Ribolini, José Úbeda, Luis Mariano del Río, Ricardo Vila, Oscar Vilca   +6 more
wiley   +1 more source