Results 81 to 90 of about 23,309 (270)

Feedbacks between coupled subglacial hydrology and glacier dynamics [PDF]

Journal of Geophysical Research: Earth Surface, 2014
On most glaciers and ice sheet outlets the majority of motion is due to basal slip, a combination of basal sliding and bed deformation. The importance of basal water in controlling sliding is well established, with increased sliding generally related to high basal water pressure, but the details of the interactions between the ice and water systems has
Matthew Hoffman, Stephen Price
openaire   +1 more source

Long-term hydrological behavior of an Alpine glacier

Journal of Hydrology, 2023
Journal of Hydrology ...
Maria Grazia Zanoni, Elisa Stella, Alberto Bellin   +2 more
openaire   +3 more sources

Geomorphic Effects and Habitat Impacts of Large Wood at Restoration Sites in New England

River Research and Applications, EarlyView.
ABSTRACT Large wood (used interchangeably with the term “instream wood”), which refers to trees, logs and other wood within a channel, is beneficial to river ecosystems and is being used more frequently as a component of river restoration projects. We identified metrics to evaluate the effectiveness of large wood to promote ecological and geomorphic ...
Audrey J. Turcotte, Noah P. Snyder, Mathias J. Collins   +2 more
wiley   +1 more source

Tracer Applications of Noble Gas Radionuclides in the Geosciences

, 2013
The noble gas radionuclides, including 81Kr (half-life = 229,000 yr), 85Kr (11 yr), and 39Ar (269 yr), possess nearly ideal chemical and physical properties for studies of earth and environmental processes.
Fischer, T. P., Kennedy, B. M., Lu, Z. -T., Purtschert, R., Schlosser, P., Severinghaus, J. P., Smethie Jr., W. M., Solomon, D. K., Sturchio, N. C., Tanhua, T., Yokochi, R.   +10 more
core   +3 more sources

Seasonal deuterium excess in a Tien Shan ice core: Influence of moisture transport and recycling in Central Asia [PDF]

, 2003
Stable water isotope (δ18O, δD) data from a high elevation (5100 masl) ice core recovered from the Tien Shan Mountains, Kyrgyzstan, display a seasonal cycle in deuterium excess (d = δD − 8*δ18O) related to changes in the regional hydrologic cycle during ...
Aizen, V, Cecil, L DeWayne, Kreutz, K, Synal, Hans-Arno, Wake, Cameron P   +4 more
core   +3 more sources

Population Dynamics of Northern Pearl Dace Margariscus nachtriebi in Anthropogenically Altered Headwater Streams of the Nebraska Sandhills Ecoregion

River Research and Applications, EarlyView.
ABSTRACT Empirical evidence of population demographic responses to environmental perturbations is a major knowledge gap for aquatic vertebrate populations. Extensive habitat alteration including channelization of headwater streams influences the habitat template on which small‐bodied fish are dependent to carry out distinct life stages and maintain or ...
Joseph Spooner, Jonathan Spurgeon
wiley   +1 more source

Simulations of snow distribution and hydrology in a mountain basin [PDF]

, 1999
We applied a version of the Regional Hydro‐Ecologic Simulation System (RHESSys) that implements snow redistribution, elevation partitioning, and wind‐driven sublimation to Loch Vale Watershed (LVWS), an alpine‐subalpine Rocky Mountain catchment where ...
Band, Larry E., Baron, Jill S., Cline, Donald W., Hartman, Melannie D., Lammers, Richard B., Liston, Glen E., Tague, Christina L.   +6 more
core   +1 more source

Evolution of drainage system morphology at a land-terminating Greenland outlet glacier [PDF]

, 2012
This work was funded by the UK Natural Environment Research Council (through grants to Nienow, Mair, and Wadham, and a studentship to Bartholomew), the Edinburgh University Moss Centenary Scholarship (Cowton and Bartholomew), and a Carnegie Research ...
Alley, Bartholomaus, Bartholomew, Bartholomew, Bartholomew, Bartholomew, Behrens, Bhatia, Bingham, Collins, Collins, Cowton, Cuffey, Das, Fountain, Fountain, Fountain, Gulley, Hock, Hock, Hoffman, Howat, Hubbard, Hubbard, Iken, Iken, Iken, Kamb, Kamb, Lewis, Lliboutry, Mair, Mair, Nienow, Nienow, Palmer, Pimentel, Rignot, Röthlisberger, Schoof, Schuler, Schuler, Seaberg, Sole, Sundal, Swift, Veen, Wal, Walder, Werder, Willis, Willis, Zwally   +52 more
core   +3 more sources

Assessing Spatial Riverbed Clogging and Its Dynamics at the Reach Scale: A Coupled Approach Combining Field Measurements and 1D Hydro‐Sedimentary Numerical Modeling

River Research and Applications, EarlyView.
ABSTRACT Assessing spatial and temporal variability of clogging in gravel‐bed rivers is challenging because field methods typically rely on labor‐intensive measurements of fine‐sediment content, porosity, or hydraulic conductivity. Clogging is also highly dynamic, driven by hydro‐sedimentary conditions; yet few studies have examined it at large scales ...
D. Hernandez, B. Camenen, A. Bonnefoy
wiley   +1 more source

Modelling glacier hydrology in West Greenland

Rapport Grønlands Geologiske Undersøgelse, 1981
There is great interest in the possibility of using runoff in West Greenland for the generation of hydroelectric power. However, there is still very little information about hydrological conditions in the country. For example, measurements of runoff and glacier mass balance were only started at a few sites in the late 1970s by the GTO and GGU ...
openaire   +3 more sources