GroMoPo Metadata for Chennai Surface-Groudnwater-Coastal model

Authors:

GroMoPo Daniel Kretschmer

Owners:

gromopo_admin

Type:

Resource

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The size of this resource is 1.7 KB

Created:

Feb 08, 2023 at 8:26 p.m.

Last updated:

Feb 08, 2023 at 8:27 p.m.

Citation:

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Abstract

The objective of this research is to investigate the best management options for mitigating seawater intrusion through real-time coupling between rainfall-runoff, infiltration, surface water and groundwater system. The amount of runoff and discharge from sub-catchment after rainfall was first simulated by the rainfall-runoff model. This simulated discharge was connected with the regional surface water model to simulate the water level in the major rivers of the area. The simulated water levels in the rivers were later given as the river stage to the groundwater model through an interface module. The effect of seawater intrusion was assessed by four scenarios such as construction of additional check dams, 1 m increase in crest level of existing check dam, rejuvenation of defunct water bodies, and termination of pumping. The predicted result shows that there is an increase in the groundwater head of about 4.2 m in the unconfined aquifer and 7.5 m in the semi-confined aquifer by the end of 2030. The chloride concentration is decreased by about 1100 mg/l and 800 mg/l in the unconfined and semi-confined aquifers, respectively, by the end of 2030 with scenario 4. The areal extent has been decreased to the coast of around 5 km with scenario 4. This clearly explains that the effect of seawater intrusion is reduced by implementing mitigating measures. Finally, the real-time integrating model demonstrated that the level of groundwater is increased and the concentration of chloride decreased which helps to restore aquifer and solve the seawater intrusion problems in this study area.

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:

WGS 84 EPSG:4326

Coordinate Units:

Decimal degrees

Place/Area Name:

India

North Latitude

13.5286°

East Longitude

80.4485°

South Latitude

12.6709°

West Longitude

79.3451°

Streets Terrain Satelite

Spatial Extent

Content

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Additional Metadata

Name	Value
DOI	10.1007/s12665-021-09836-8
Depth
Scale	1 001 - 10 000 kmÂ²
Layers	8
Purpose	Salt water intrusion
GroMoPo_ID	412
IsVerified	True
Model Code	Feflow
Model Link	https://doi.org/10.1007/s12665-021-09836-8
Model Time	1996-2003
Model Year	2021
Model Authors	Rajaveni, SP; Nair, IS; Bhola, PK; Zabel, A; Monninkhoff, B; Elango, L
Model Country	India
Data Available	Report/paper only
Developer Email	elango34@hotmail.com
Dominant Geology	Model focuses on multiple geologic materials
Developer Country	India; Germany
Publication Title	Identification of management options to mitigate seawater intrusion in an overexploited multi-layered coastal aquifer by integrated rainfall-runoff, surface water and density-dependent groundwater flow modeling
Original Developer	No
Additional Information
Integration or Coupling	Surface water;Climate
Evaluation or Calibration	Static water levels;Dynamic water levels
Geologic Data Availability	No

How to Cite

GroMoPo, D. Kretschmer (2023). GroMoPo Metadata for Chennai Surface-Groudnwater-Coastal model, HydroShare, http://www.hydroshare.org/resource/d509d1e93fe94047a8f1a262153e1fa0

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

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

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