CLASS Spatial Analyst is used in a number of major studies across NSW. It has been implemented on more than 30 catchments across NSW ranging in size from 10 to 7500 km2.
Spatial Analyst has been implemented on Delegate, Bombala and McLachlan catchments. The total soil depth and depth for each soil horizon from this implementation was used to define the modelling domain for all the Pasture and Tree growth simulations. The soil moisture capacity estimated by Spatial Analyst for each of the three catchments was used to guide implementation of catchment scale lumped rainfall runoff model.
The Snowy Monaro Plantation Strategy is being developed in partnership between the NSW Premiers Department and DNR and has been established to provide a balance between the agriculture and forest industries of the Southern Monaro Region. This work will provide policy input to the Plantations and Reafforestation Act.
Spatial Analyst is currently been implemented on the Koondrook-Perricoota Forest (KPF) as part of the Living Murray Initiative that will explore and implement the structural works required to gravitate water from Torrumbarry Weir into the Koondrook-Perricoota Forest. The forest covers an area of approximately 32,000ha on the NSW side of the Murray River between Echuca-Moama and Barham-Koondrook.
It has also been implemented on Simmons Creek catchment, which is the focus catchment for a Grain Research and Development Corporation funded collaborative project (CSIRO Land and Water, NSW DPI, and NSW DNR). The soil depths estimated from Spatial Analyst will be used to define the soil domain for crop and pasture growth models.
Class Spatial Analyst has been implemented on 8 focus catchments used in the MDBC Salinity Audit Update 2004 under the MDBMC Basin Salinity Management Strategy and Murray-Darling Basin Agreement, Schedule C. The outputs from the model are used to define 2 dimensional transects across these focus catchments for MODFLOW implementation.
Where possible, the outputs from CLASS Spatial Analyst are validated against available datasets. Field validation was done for soil depths estimated by Spatial Analyst in the Snowy catchments of Delegate, Bombala and McLachlan and it clearly indicates that Spatial Analyst was able to estimate the soil depth across all the catchments reasonably well (Murphy et al., 2005a, 2005b).
The main features of this product include: