Results 61 to 70 of about 43,543 (259)

Subsurface Investigations of Cryo‐Hydrogeological Features in a High Arctic Catchment Under Transition

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT In this study, the internal structure and seasonal variations of cryo‐hydrogeological features were investigated in the Fuglebekken catchment, located near the Polish Polar Station Hornsund in Svalbard. Over a few years, rising air temperatures and intensified water circulation have significantly altered the distribution, extent, and state of ...
Wawrzyniak Tomasz, Oryński Szymon, Marciniak Artur, Osuch Marzena   +3 more
wiley   +1 more source

Permafrost Terrain Disturbance Susceptibility in the Nacho Nyäk Tagé (Stewart River) Watershed, Yukon, Canada

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT The Nacho Nyäk Tagé (Stewart River) watershed in central Yukon (Canada) is characterized by discontinuous permafrost that is locally highly sensitive to thaw. This study aims to map the spatial distribution of permafrost terrain disturbances (PTDs) in the watershed and model thaw susceptibility to support community‐led land‐use planning by the
Frederic Brieger, Murray Richardson, Shawn Kenny   +2 more
wiley   +1 more source

Weak Physics‐Guided Multi‐Agent Learning for Surface to Subsurface Moisture Estimation Across Diverse Climate and Soil Conditions

Journal of Geophysical Research: Machine Learning and Computation
Estimating subsurface soil moisture remains challenging due to limited in situ observations and the complexity of soil water dynamics. Although surface soil moisture can be retrieved from satellites with high accuracy, deeper layers are not directly ...
Abhilash Singh, Vidhi Singh, Kumar Gaurav   +2 more
doaj   +1 more source

The Quaternary alluvial systems tract of the Pantanal Basin, Brazil

Brazilian Journal of Geology
The Pantanal Basin is an active sedimentary basin in central-west Brazil that consists of a complex alluvial systems tract characterized by the interaction between different river systems developed in one of the largest wetlands in the world.
Mario Luis Assine, Eder Renato Merino, Fabiano do Nascimento Pupim, Hudson de Azevedo Macedo, Mauricio Guerreiro Martinho dos Santos   +4 more
doaj   +1 more source

A model for fluvial bedrock incision by impacting suspended and bed load sediment [PDF]

, 2008
A mechanistic model is derived for the rate of fluvial erosion into bedrock by abrasion from uniform size particles that impact the bed during transport in both bed and suspended load.
Dietrich, William E., Lamb, Michael P., Sklar, Leonard S.   +2 more
core   +1 more source

A Tool for Prioritizing Gravel Augmentation Reaches for Sediment Starved Rivers

River Research and Applications, EarlyView.
ABSTRACT Gravel augmentation is a widely used restoration technique used to improve habitat below dams, including salmonids spawning habitat. However, gravel augmentation can be cost‐prohibitive, and it is often unclear which stream segments have the highest potential to benefit spawning salmonids.
Patricia J. Wohner, Peter A. Samarin, James T. Peterson   +2 more
wiley   +1 more source

Fluvial forms and processes in natural and engineered river channels: geotourism potential of mountain valleys – examples from Zubrzyca, Syhlec and Lipnica streams in the Polish Orava (Danube Water Basin)

Acta Scientiarum Polonorum. Formatio Circumiectus, 2020
Aim of the study: In the paper, geomorphological processes and forms investigated in mountain channel streams are presented, which may be attractive for tourists who are interested in Geotourism.
Krzysztof Miraj, Karol Krystian Plesiński, Artur Radecki-Pawlik   +2 more
doaj   +1 more source

A four stage evolution of the White Channel gravel: Implications for stratigraphy and palaeoclimates [PDF]

, 2014
Although the White Channel gravel (WCG) of the Klondike district, Yukon, contains gold placers which have been exploited for over a century, few sedimentological studies have been undertaken.
Chapman, Robert, Lowther, Robert, Peakall, Jeff, Pound, Matthew   +3 more
core  

Experimental Fluvial Geomorphology

Eos, Transactions American Geophysical Union, 1988
This book brings together in one volume the results of experimental studies, begun in 1969, of drainage basin evolution and hydrology, river channel and valley morphology and behavior, and alluvial fan morphology and sedimentology. These studies were conducted at the Engineering Research Center of Colorado State University, Fort Collins, by the authors
openaire   +1 more source

Geomorphic Responses to Post‐Grazing Recovery and Stream Restoration in Semiarid Grassland Streams

River Research and Applications, EarlyView.
ABSTRACT Semiarid grassland streams are sensitive to land use, climate, extreme discharges, and internal geomorphic thresholds that drive episodic erosion. Rooted in a process‐based philosophy and commonly applied to historically wood‐rich, beaver‐modified systems, low‐tech process‐based restoration using structures is increasingly being extended to ...
Owen Richardson, Ellen Wohl
wiley   +1 more source