Baseline Delta groundwater data for Gippsland scenarios

## **Abstract** 

The dataset was compiled by the Bioregional Assessment Programme from multiple sources referenced within the dataset and/or metadata. The processes undertaken to compile this dataset are described in the History field in this metadata statement



Baseline groundwater data within this geodatabase was generated by Craig Beverly in the Gippsland Regional Groundwater Model (Beverly et al, 2015).

It contains depth to groundwater in a number of scenarios based on year and the change in simulated depth to watertable predicted using the USGS MODFLOW-2005 finite difference groundwater model for one year relative to another year baseline conditions. These scenarios covered a greater area than the BAP and were reused in this Programme.

## **Purpose** 

The purpose of the modelling was to quantify the impacts of potential onshore gas projects. The design of the scenarios was to consider combinations of tight and shale gas and coal seam gas extractions within defined prospective development regions.  ...  The impacts of each predictive scenario were estimated based on a comparison with a defined baseline condition...

Importantly, it is considered that while the developed groundwater model cannot be used predictively to quantify the water balance or water levels at the regional scale under specific development scenarios, it is appropriate for comparison of different scenarios for volumetric changes to the water balance or water levels against a baseline condition.  

Extract from The Gippsland groundwater model technical report, Beverly et al (2015)

## **Dataset History** 

How the resource was created:

Simulation predictions created using USGS MODFLOW-2005 and extracted using customised software by Craig Beverly.

Summary of content

Image d232_112_aa

Change in simulated depth to watertable predicted using the USGS MODFLOW-2005 finite difference groundwater model for 2042 relative to 2012 baseline conditions.

Image d352_112_aa

Change in simulated depth to watertable predicted using the USGS MODFLOW-2005 finite difference groundwater model for 2072 relative to 2012 baseline conditions.

Image d472_112_aa

Change in simulated depth to watertable predicted using the USGS MODFLOW-2005 finite difference groundwater model for 2102 relative to 2012 baseline conditions.

Image delta232_aa

Change in simulated depth to watertable predicted using the USGS MODFLOW-2005 finite difference groundwater model for 2042 under CRDP conditions relative to 2042 baseline conditions.

Image delta352_aa

Change in simulated depth to watertable predicted using the USGS MODFLOW-2005 finite difference groundwater model for 2072 under CRDP conditions relative to 2072 baseline conditions.

Image delta472_aa

Change in simulated depth to watertable predicted using the USGS MODFLOW-2005 finite difference groundwater model for 2102 under CRDP conditions relative to 2102 baseline conditions.

Image dwtsp112_ts4a

Simulated 2012 depth to watertable predicted using the USGS MODFLOW-2005 finite difference groundwater model.

## **Dataset Citation** 

Victorian Department of Economic Development, Jobs, Transport and Resources (2016) Baseline Delta groundwater data for Gippsland scenarios. Bioregional Assessment Source Dataset. Viewed 05 October 2018, http://data.bioregionalassessments.gov.au/dataset/40593c17-2657-40a1-805e-6386de86ebda.

Tags: Gippsland Basin bioregion, Victoria, geoscientificInformation
Organization: Bioregional Assessment Program