GroMoPo Metadata for Cauvery River MODFLOW model

Authors:

GroMoPo Daniel Kretschmer

Owners:

gromopo_admin

Type:

Resource

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The size of this resource is 1.6 KB

Created:

Feb 08, 2023 at 2:49 p.m.

Last updated:

Feb 08, 2023 at 2:49 p.m.

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Abstract

Groundwater modelling is an important management tool to study the behaviour of aquifer system under various hydrological stresses. Present study was carried out in deltaic regions of the Cauvery river, with an objective of estimating the minimum river flow required to improve the groundwater quality by numerical modelling. Cauvery river delta is the most productive agricultural plains of south India, but the agricultural activities during the last few decades have decreased due to limited flow in the river and increasing concentration of solutes in groundwater in the eastern parts. In order to understand the causes for increasing concentration, a three-layered finite-difference flow model was formulated to simulate the groundwater head and solute transport. The model was used to simulate the groundwater flow and solute transport for 5 years from July 2007 to June 2012. There was a fairly good agreement between the computed and observed groundwater heads. The chloride and nitrate ions were considered for solute transport modelling. Observed and simulated temporal variation in chloride and nitrate concentrations were comparable. The simulated solute concentrations from July 2007 to June 2012 showed an accumulation of solutes in groundwater of coastal part of the study area. The model was used to find the flow to be maintained in the river and rainfall recharge required to flush the ions into the sea. This can be achieved by maintaining minimal flow in the river and through regulation of fertilizer use as well as by creating awareness of sustainable use of groundwater in this area.

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:

WGS 84 EPSG:4326

Coordinate Units:

Decimal degrees

Place/Area Name:

India

North Latitude

10.9509°

East Longitude

79.8675°

South Latitude

10.8457°

West Longitude

79.6273°

Streets Terrain Satelite

Spatial Extent

Content

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Additional Metadata

Name	Value
DOI	10.1007/s13762-016-1211-0
Depth	260
Scale	101 - 1 000 kmÂ²
Layers	3
Purpose	Groundwater quality
GroMoPo_ID	284
IsVerified	True
Model Code	MODFLOW
Model Link	https://doi.org/10.1007/s13762-016-1211-0
Model Time	2007-2012
Model Year	2017
Model Authors	Vetrimurugan, E; Senthilkumar, M; Elango, L
Model Country	India
Data Available	Report/paper only
Developer Email	elango@annauniv.edu
Dominant Geology	Model focuses on multiple geologic materials
Developer Country	South Africa; India
Publication Title	Solute transport modelling for assessing the duration of river flow to improve the groundwater quality in an intensively irrigated deltaic region
Original Developer	No
Additional Information
Integration or Coupling	Surface water
Evaluation or Calibration	Static water levels;Dynamic water levels
Geologic Data Availability	No

How to Cite

GroMoPo, D. Kretschmer (2023). GroMoPo Metadata for Cauvery River MODFLOW model, HydroShare, http://www.hydroshare.org/resource/5a710a06d1ca43728b60478e034dc459

This resource is shared under the Creative Commons Attribution CC BY.

http://creativecommons.org/licenses/by/4.0/

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