Update - 18/08/2010
A new version of HowLeaky (v5.10) is currently being prepared for upload onto this site... I'm also in the process of rewriting this website... so expect some changes soon.
I've just put an older version (v5.09) on here for download - but beware, there are a few minor bugs in this version. I should have the new version up by next week.
cheers
David McClymont
HowLeaky? represents a rebuilding of the PERFECT V3 model, with an enhanced interface designed to be useful to a range of non-modellers to explore the implications of alternative land-uses on water balance, runoff, erosion, and drainage. This is an experimental approach to explore whether a more user-friendly interface will enable a wider range of users to use daily simulation models as an aid to
HL uses a simple leaf area driven crop model (LAI model) and a generic pan evaporation model (ET: Pan model) to represent pastures and trees. These models are responsive to water, temperature and radiation stress, and represent the dynamics between weather, soils and vegetation in so far as these impact on water use and water and sediment flows. Since crop production is treated simply, these models should not be expected to simulation detailed crop management options such as soil fertility detailed phenology or population issues.
HL is a cooperative project between the Queensland Department of Natural Resources and Mines, the New South Wales Department of Land and Water Conservation, and the Victorian Department of Natural Resources and Environment.