MODFLOW based groundwater resource evaluation and prediction in Mendha sub-basin,NE Rajasthan |
| |
| Authors: | Rakesh K Kushwaha M K Pandit Rohit Goyal |
| |
| Institution: | 1.Central Ground Water Board,Jaipur,India;2.Department of Geology,University of Rajasthan,Jaipur,India;3.Department of Civil Engineering,Malviya National Institute of Technology,Jaipur,India |
| |
| Abstract: | A direct approach to designing MODFLOW finite difference model is tedious and less intuitive, specifically for complex boundary
and initial conditions. Therefore, a MODFLOW model can be developed either using a grid or conceptual model approach. The
conceptual model is created using Geographic Information System (GIS) objects including points, arcs and polygons so that
it can more accurately represent real world condition. It is a simplified representation of the site to be modelled including
the model domain, boundary conditions, sources, sinks and material zones. Advantage of conceptual model is that most of the
input can be in terms of physical objects, such as wells, lakes, recharge zones etc which can then be converted to a grid
based mathematical model with the help of preprocessor software.
This paper presents the results of a mathematical groundwater model developed for the northern part of Mendha sub-basin in
the semi arid region of northeastern Rajasthan, employing conceptual groundwater modelling approach. For this purpose, Groundwater
Modelling Software (GMS) was used which supports the MODFLOW-2000 code. For the purpose of modelling the Source/ Sink Coverage,
Recharge Coverage, Extraction Coverage, Return Flow Coverage and Soil Coverage were considered. The model was calibrated against
the historical and observed water level data for periods 1998 to 2003 and 2003 to 2005 respectively. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
