Mean monthly flow & annual flow data - Macalister Irrigation District

## **Abstract** 

This dataset was supplied to the Bioregional Assessment Programme by a third party and is presented here as originally supplied. Metadata was not provided and has been compiled by the Bioregional Assessment Programme based on known details at the time of acquisition.



Mean monthly flow (ML/month) and Annual flow (ML/yr) data at key gauges in the Macalister Irrigation District (MID) as monitored by SRW. The data are provided in MS Excel format in worksheets and charts.



Data used to produce Time-series drainage volume data provided by a third party. Site information and monitoring drainage flow data provided by the Southern Rural Water are specific to the Macalister Irrigation District.



Time specific data in the range 23/07/1997 to 31/12/2013

## **Dataset History** 

This dialogue has been copied from a draft of the BA-GIP report. 



A total of 197 river gauges were identified within the model area representing all of the major rivers.  Daily gauge level data was sourced from the Victorian Department of Environment, Land, Water and Planning Water Measurement Information System (WMIS, 2015). A list of the river gauges is provided in the report for key river basins

Only main stems of the major rivers were included in the model.  These river reaches were identified using the DEPI hydro25 spatial data set (DEPI, 2014).  The river classification was used to vary river incision depth (depth below the ground surface as defined by the digital elevation model) and width attributes.  In the absence of recorded stage height information, river classification was used to estimate river stage heights.  A total of 22,573 river cells are included in the model.  Fifty-one gauges were selected to calibrate the catchment modelling framework in unregulated catchments based on Base Flow Indexes and observed stream flows.

Drainage channels and man-made drainage features in the Macalister Irrigation District (MID) were included in the model based on available drainage network mapping.  This information was sourced from Southern Rural Water (SRW) and the DEPI Corporate Spatial Data library.  Drainage cells are assigned to the uppermost cells within the model to capture groundwater discharge processes.  Drain cells in Modflow can only act as groundwater discharge points and as such those cells outside drainage channels will be characterised as having a bed elevation equivalent to ground surface elevation.  A total of 410,504 drainage cells are incorporated in the model.  Apart from 3 river gauges sourced from the WMIS, SRW also has 15 gauges monitored drainage from the MID.  The measurements commenced between 1997 and 2005.  Of the 15 gauges, six were selected to calibrate the catchment modelling framework based on observed discharge.

## **Dataset Citation** 

Victorian Department of Economic Development, Jobs, Transport and Resources (2015) Mean monthly flow & annual flow data - Macalister Irrigation District. Bioregional Assessment Source Dataset. Viewed 05 October 2018, http://data.bioregionalassessments.gov.au/dataset/6ba89d78-1e42-4e02-bd5c-a435ee15bef4.

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