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  • Modelled long term (1958-2005) average diffuse recharge (in mm) for June as calculated using the Ensym model. Includes rainfall recharge and irrigation recharge however excludes river / stream / channel / reservoir leakage. Ensym estimates daily spatial recharge by solving for physical processes using analytical solutions and empirical equations. Water entering the soil profile is initially determined by subtracting the calculated surface runoff from the total daily precipitation and irrigation. Once in the soil profile, water can be removed by evapotranspiration, lateral flow and downward movement if soil capacity is exceeded. Water fills up lower soil layers until it exits the soil profile and becomes drainage. Drainage is then partioned into sub surface lateral flow and recharge. For further information: https://ensym.dse.vic.gov.au/home/aboutensym Beverly, C., 2007. Technical Manual - Models of the Catchment Analysis Tool. Victoria. Department of Sustainability and Environment.

  • Modelled long term (1958-2005) average diffuse recharge (in mm) for August as calculated using the Ensym model. Includes rainfall recharge and irrigation recharge however excludes river / stream / channel / reservoir leakage. Ensym estimates daily spatial recharge by solving for physical processes using analytical solutions and empirical equations. Water entering the soil profile is initially determined by subtracting the calculated surface runoff from the total daily precipitation and irrigation. Once in the soil profile, water can be removed by evapotranspiration, lateral flow and downward movement if soil capacity is exceeded. Water fills up lower soil layers until it exits the soil profile and becomes drainage. Drainage is then partitioned into sub surface lateral flow and recharge. For further information: https://ensym.dse.vic.gov.au/home/aboutensym Beverly, C., 2007. Technical Manual - Models of the Catchment Analysis Tool. Victoria. Department of Sustainability and Environment.

  • MODFLOW modelled depth to water table (m) for each month in below nominated one year wet period. As calculated by the ecoMarkets groundwater modelling project. North East 1992 Goulburn Broken 1992 North Central 1992 Mallee 1992 (only annual depths available) Wimmera 1992 Glenelg Hopkins 1992 Corangamite - Port Phillip 1992 West Gippsland 1974 East Gippsland 1992 For further information: https://ensym.dse.vic.gov.au/home/aboutensym Harbaugh, A.W., and McDonald, M.G., 1996, User's documentation for MODFLOW-96, an update to the U.S. Geological Survey modular finite-difference ground-water flow model: U.S. Geological Survey Open-File Report 96-485, 56 p

  • Calculated using the Ensym model. The potential evapotranspiration minus actual un-saturated evapotranspiration calculation can be used to set an upper limit to groundwater evaporation rates. Ensym estimates daily spatial evapotranspiration by solving for physical processes using analytical solutions and empirical equations. Evaporation of water from the soil surface is calculated using a Ritchie's two-stage evaporation algorithim. After infiltration , drying occurs at the potential rate up to a specified limit (stage I) and thereafter at a rate reflecting diffusion processes that are assumed proportional to the square root of time (Stage II). In general transpiration is calculated as a function of pan evaporation, leaf area index, soil moisture content, plant density and temperature however the specifics of the calculations vary with landuse and the particular plant growth model utilised. For further information: https://ensym.dse.vic.gov.au/home/aboutensym Beverly, C., 2007. Technical Manual - Models of the Catchment Analysis Tool. Victoria. Department of Sustainability and Environment.

  • Modelled long term (1958-2005) average diffuse recharge (in mm) for February as calculated using the Ensym model. Includes rainfall recharge and irrigation recharge however excludes river / stream / channel / reservoir leakage. Ensym estimates daily spatial recharge by solving for physical processes using analytical solutions and empirical equations. Water entering the soil profile is initially determined by subtracting the calculated surface runoff from the total daily precipitation and irrigation. Once in the soil profile, water can be removed by evapotranspiration, lateral flow and downward movement if soil capacity is exceeded. Water fills up lower soil layers until it exits the soil profile and becomes drainage. Drainage is then partitioned into sub surface lateral flow and recharge. For further information: https://ensym.dse.vic.gov.au/home/aboutensym Beverly, C., 2007. Technical Manual - Models of the Catchment Analysis Tool. Victoria. Department of Sustainability and Environment.

  • MODFLOW modelled potentiometric surface (m AHD) within the lower Teriary aquifer. As calculated by the ecoMarkets groundwater modelling project. North East - no lower tertiary geology Goulburn Broken - Layer 6 - Renmark Group North Central - Layer 8 - Renmark Group Mallee - Layer 4 - Renmark Group (and Layer 3 where Parilla Sand directly overlies the Renmark Group in the east) Wimmera - Layer 6 - Renmark Group (Olney Formation & Warina Sand) Glenelg Hopkins - Layer 4 - Dilwyn Aquifer, Lower Mepunga Aquifer, Timboon Sand Aquifer Corangamite - Layer 5 - Demons Bluff Formation, Eastern View Formation, Timboon Sand, Pebble Point Formation, Clifton Formation, Wiridjil Formation Port Phillip - Layer 5 - Werribee Formation, Childers Formation, Older Volcanics West Gippsland - Layer 6 - Traralgon Formation, Older Volcanics (Carrajung Formation) East Gippsland - Conceptual Layer 5 - LaTrobe Group, Traralgon Formation For further information: https://ensym.dse.vic.gov.au/home/aboutensym Harbaugh, A.W., and McDonald, M.G., 1996, User's documentation for MODFLOW-96, an update to the U.S. Geological Survey modular finite-difference ground-water flow model: U.S. Geological Survey Open-File Report 96-485, 56 p

  • Calculated using the Ensym model. The potential evapotranspiration minus actual un-saturated evapotranspiration calculation can be used to set an upper limit to groundwater evaporation rates. Ensym estimates daily spatial evapotranspiration by solving for physical processes using analytical solutions and empirical equations. Evaporation of water from the soil surface is calculated using a Ritchie's two-stage evaporation algorithim. After infiltration , drying occurs at the potential rate up to a specified limit (stage I) and thereafter at a rate reflecting diffusion processes that are assumed proportional to the square root of time (Stage II). In general transpiration is calculated as a function of pan evaporation, leaf area index, soil moisture content, plant density and temperature however the specifics of the calculations vary with landuse and the particular plant growth model utilised. For further information: https://ensym.dse.vic.gov.au/home/aboutensym Beverly, C., 2007. Technical Manual - Models of the Catchment Analysis Tool. Victoria. Department of Sustainability and Environment.

  • Modelled long term (1958-2005) average diffuse recharge (in mm) for April as calculated using the Ensym model. Includes rainfall recharge and irrigation recharge however excludes river / stream / channel / reservoir leakage. Ensym estimates daily spatial recharge by solving for physical processes using analytical solutions and empirical equations. Water entering the soil profile is initially determined by subtracting the calculated surface runoff from the total daily precipitation and irrigation. Once in the soil profile, water can be removed by evapotranspiration, lateral flow and downward movement if soil capacity is exceeded. Water fills up lower soil layers until it exits the soil profile and becomes drainage. Drainage is then partioned into sub surface lateral flow and recharge. For further information: https://ensym.dse.vic.gov.au/home/aboutensym Beverly, C., 2007. Technical Manual - Models of the Catchment Analysis Tool. Victoria. Department of Sustainability and Environment.

  • Modelled long term (1958-2005) average diffuse recharge (in mm) for November as calculated using the Ensym model. Includes rainfall recharge and irrigation recharge however excludes river / stream / channel / reservoir leakage. Ensym estimates daily spatial recharge by solving for physical processes using analytical solutions and empirical equations. Water entering the soil profile is initially determined by subtracting the calculated surface runoff from the total daily precipitation and irrigation. Once in the soil profile, water can be removed by evapotranspiration, lateral flow and downward movement if soil capacity is exceeded. Water fills up lower soil layers until it exits the soil profile and becomes drainage. Drainage is then partitioned into sub surface lateral flow and recharge. For further information: https://ensym.dse.vic.gov.au/home/aboutensym Beverly, C., 2007. Technical Manual - Models of the Catchment Analysis Tool. Victoria. Department of Sustainability and Environment.

  • MODFLOW modelled depth to water table (m) for each month in below nominated one year dry period. As calculated by the ecoMarkets groundwater modelling project. North East 2002 Goulburn Broken 2002 North Central 2002 Mallee 2002 (only annual depths available) Wimmera 2002 Glenelg Hopkins 1994 Corangamite - Port Phillip 2002 West Gippsland 1982 East Gippsland 2002 For further information: https://ensym.dse.vic.gov.au/home/aboutensym Harbaugh, A.W., and McDonald, M.G., 1996, User's documentation for MODFLOW-96, an update to the U.S. Geological Survey modular finite-difference ground-water flow model: U.S. Geological Survey Open-File Report 96-485, 56 p