Three-dimensional numerical model to simulate regional groundwater flow in Thirukkazhukundram block, Southern India

2021 ◽  
Vol 14 (15) ◽  
Author(s):  
Amuthini Sambhavi ArunaJadesan ◽  
Nagamani Kattukota ◽  
Senthilkumar Mohanavelu ◽  
Gowtham Balu ◽  
Venkatesan Selvaraj ◽  
...  
Keyword(s):  
Numerical Model ◽  
Groundwater Flow ◽  
Three Dimensional ◽  
Southern India ◽  
Regional Groundwater

scholarly journals Influence of tides, bathymetry, lithology and regional flows on the salinization process in nature area the Rammegors

2018 ◽  
Vol 54 ◽  
pp. 00001
Author(s):  
Ilja America ◽  
Perry de Louw ◽  
George Bier ◽  
Sjoerd van der Zee
Keyword(s):  
Spatial Distribution ◽  
Groundwater Flow ◽  
Salt Water ◽  
Three Dimensional ◽  
Tidal Area ◽  
Dimensional Models ◽  
Three Dimensional Models ◽  
Regional Groundwater

Nature area Rammegors, which has recently been transformed from a fresh inner-dyke nature area to a salt tidal area. Due to this transformation, salt water is infiltrating in a fresh waterlens. This salinisation process is investigated in more detail by two- and three dimensional models together with mearsurements in the area. Zeeland project FRESHEM has provided detailed isohaline maps of the area and Deltares is making transient isohaline maps based on measurements made by an ERT-cable which is situated in Rammegors. These data has been and will be used to investigate which factors; bathymetry, lithology, tides or regional groundwater flow, will have the largest impact on the salinization process in Rammegors. This investigation shows that discretization size has an influence on the speed and spatial distribution of salt plumes. Lithology has the largest influence on the salinization process, followed by bathymetry. Spring and neap tides do differ from the normal tides situation only when bathymetry is not taken into account.

A three-dimensional groundwater flow simulation of Granger Basin, Yukon, Canada

2021 ◽  
Author(s):  
Audrey Woo ◽  
Jeffrey McKenzie ◽  
Sean Carey
Keyword(s):  
Climate Change ◽  
Numerical Model ◽  
Groundwater Flow ◽  
Average Rate ◽  
Three Dimensional ◽  
The Arctic ◽  
Future Research ◽  
Surface Boundary ◽  
Discontinuous Permafrost ◽  
The Impact

<p>Groundwater flow and exfiltration (discharge) in Arctic and Subarctic mountain regimes is poorly understood yet plays an important role in areas underlain by continuous and discontinuous permafrost. Permafrost, ground with a perennial temperature below 0°C, acts as an impermeable barrier to groundwater flow and influences hydrogeologic connectivity and storage. The Arctic is warming at twice the global average rate, leading to rapid permafrost thaw with unclear consequences for groundwater systems. In this study, we develop a numerical groundwater model of the Granger Basin, Yukon, to further our understanding of the influence of permafrost and thaw on groundwater flow in basins impacted by climate change.</p><p>Granger Basin is a 7.6 km<sup>2</sup>  headwater catchment located within the Wolf Creek Research Basin, Yukon, Canada. It is representative of a subarctic-continental mountain environment with already observable climate change impacts. To date, there has been limited hydrogeology monitoring or numerical modeling at this site. To investigate cryohydrogeologic processes within the basin, we integrate existing field data, including 30 years of hydrometeorological records and geophysical data into a three-dimensional numerical model with saturated-unsaturated groundwater flow. We use the SUTRA-ice numerical model that couples groundwater flow and energy transport with dynamic freeze-thaw processes. The model incorporates both time-dependent thermal and hydrological surface boundary conditions and is used parametrically to understand the generation of groundwater baseflow in this setting. We will present initial results that will evaluate the impact of different hydrogeologic properties on the generation of groundwater streamflow in Wolf Creek, how permafrost in transition affects the groundwater system, and provide the framework for future research directions.</p>

Numerical modeling of regional groundwater flow in the Adda-Ticino Basin: advances and new results

2016 ◽  
Vol 41 ◽  
pp. 10-13 ◽  
Author(s):  
Luca Alberti ◽  
Martino Cantone ◽  
Silvia Lombi ◽  
Alessandra Piana
Keyword(s):  
Numerical Modeling ◽  
Groundwater Flow ◽  
Regional Groundwater
Sign in / Sign up

Export Citation Format

Share Document