Results 71 to 80 of about 26,322 (306)

Analyzing ice dynamics using Sentinel-1 data at the Solheimajoküll Glacier, Iceland

GIScience & Remote Sensing, 2020
The climate in southern Iceland has warmed over the last 70 years, resulting in accelerated glacier dynamics at the Solheimajoküll glacier. In this study, we compare glacier terminus locations from 1973 to 2018, to changes in climate across the study ...
Diego Gómez, Pablo Salvador, Julia Sanz, Mikhail Urbazaev, José Luis Casanova   +4 more
doaj   +1 more source

Supraglacial forcing of subglacial drainage in the ablation zone of the Greenland ice sheet [PDF]

, 2011
Peer reviewedPublisher ...
Alley, Andrew Sole, Bartholomew, Box, Catania, Collins, Das, Douglas Mair, Fenn, Hock, Ian Bartholomew, Jemma Wadham, Kamb, McMillan, Nienow, Palmer, Parizek, Peter Nienow, Pfeffer, Pimentel, Schoof, Shepherd, Shreve, Skidmore, Steven Palmer, Sundal, Sundal, Swift, Thomas Cowton, Van de Wal, van der Veen, Zwally   +31 more
core   +4 more sources

EXPLOITING SENTINEL-1 AMPLITUDE DATA FOR GLACIER SURFACE VELOCITY FIELD MEASUREMENTS: FEASIBILITY DEMONSTRATION ON BALTORO GLACIER [PDF]

ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
The leading idea of this work is to continuously retrieve glaciers surface velocity through SAR imagery, in particular using the amplitude data from the new ESA satellite sensor Sentinel-1 imagery. These imagery key aspects are the free access policy, the very short revisit time (down to 6 days with the launch of the Sentinel-1B satellite) and the high
Nascetti, Andrea, Nocchi, Francesca Romana, Camplani, Andrea, Di Rico, Clarissa, Crespi, Mattia Giovanni   +4 more
openaire   +4 more sources

Multi‐Method Geophysical Surveys Between and Around the Kerlescan and the Manio Megalithic Alignments in Carnac (Morbihan, France)

Archaeological Prospection, EarlyView.
ABSTRACT The Carnac alignments in Morbihan (France) are among the most famous Neolithic sites of the world. Paradoxically, they have benefited little from a thorough renewal of archaeological data over the past century. There are many reasons for this, but it is mainly because the site has been regarded more as a monument to visit and protect than as ...
Guillaume Bruniaux, Vivien Mathé, Olivier Agogué, Sylvia Lopez, Philippe Paillou, Reena Perschke, Vincent Ard   +6 more
wiley   +1 more source

Across-Track and Multi-Aperture InSAR for 3-D Glacier Velocity Estimation of the Siachen Glacier

Remote Sensing, 2023
Interferometric Synthetic Aperture Radar (InSAR) remote sensing generally lacks deformation sensitivity in the along-track direction. In this proposed approach, across-track observations from conventional InSAR, using both ascending and descending passes,
Vijay Kumar, Kjell Arild Høgda, Yngvar Larsen   +2 more
doaj   +1 more source

A review of the historic and present ecological role of aquatic and shoreline wood, from forest to deep sea

Biological Reviews, EarlyView.
ABSTRACT The ecology of forests, their losses, and terrestrial wood decomposition dynamics have been intensively studied and reviewed. In the aquatic realm, reviews have concentrated on large wood (LW) in rivers and the transition from freshwater to marine environments in the Pacific Northwest of North America. However, a comprehensive global synthesis
Jon Dickson, Ellen Wohl, Laura L. Govers, Oscar Franken, Tjeerd J. Bouma, Han Olff, Britas Klemens Eriksson, Maryann S. Watson, Luísa M.S. Borges, Tjisse van der Heide   +9 more
wiley   +1 more source

Response of Marine‐Terminating Glaciers to Forcing: Time Scales, Sensitivities, Instabilities, and Stochastic Dynamics [PDF]

, 2018
Recent observations indicate that many marine‐terminating glaciers in Greenland and Antarctica are currently retreating and thinning, potentially due to long‐term trends in climate forcing.
Haseloff, Marianne, Robel, Alexander A., Roe, Gerard H.   +2 more
core   +2 more sources

The spread of non‐native species

Biological Reviews, EarlyView.
ABSTRACT The global redistribution of species through human agency is one of the defining ecological signatures of the Anthropocene, with biological invasions reshaping biodiversity patterns, ecosystem processes and services, and species interactions globally.
Phillip J. Haubrock, Ali Serhan Tarkan, Irene Martín‐Forés, Stelios Katsanevakis, Ronaldo Sousa, Ismael Soto, Andy J. Green, Antonín Kouba, Teun Everts, Victoria Dominguez Almela, Nadège Belouard, Cang Hui, Jamie Bojko, Victor Deklerck, Margaux Boeraeve, Franz Essl, J. Robert Britton   +16 more
wiley   +1 more source

Galerkin Least-Squares Stabilization in Ice Sheet Modeling - Accuracy, Robustness, and Comparison to other Techniques

, 2017
We investigate the accuracy and robustness of one of the most common methods used in glaciology for the discretization of the $\mathfrak{p}$-Stokes equations: equal order finite elements with Galerkin Least-Squares (GLS) stabilization.
Ahlkrona, Josefin, Helanow, Christian
core   +1 more source

Glacier changes in the Bavarian Alps from 1989/90 to 2006/07 [PDF]

, 2008
The five glaciers in Bavaria which today cover a total area of less than one square kilometer were frequently monitored by geodetic methods from the mid of the 20th century. In this paper, the record is extended by new surveys in 1999 and 2006.
Hagg, Wilfried, Mayer, Christoph, Steglich, C.   +2 more
core   +1 more source