Documents and Presentations

Here you will find a range of documents, presentations and videos relating to HowLeaky.

Howleaky governance (2019)

Terms of reference for governance of the HowLeaky model developed by the Queensland Government. HowLeaky is a community governed model and ass

Review of Howleaky (2017)

Pembleton K (2017)  A review of the HowLeaky model: Applications, development, maintenance and future governance  A report for the Quee

Documentation V5 (2019)

Detailed description of the science within HowLeaky (Version 5.49). Sample input parameter values for different submodels are provided in the appendic

Describing soil

Guide to describing soils in Howleaky

Describing vegetation

Guide to specifying vegetation and management.

Irrigation in Howleaky

Case studies

Pesticide methodology

Example inputs, climate, land use, and soil management.

Describing land use and soil

A process to glean information from experts and farmers

Howleaky overview (2019)

An open science apporach to agricultural systems and water quality analysis  (Modsim 2019)

Open source platform for modelling hydrology & water quality (2021)

Poster: Describing the redevelopment of Howleaky Cairns (Ghahramani et al 2021)    

Water balance concepts

A guide to water balance concepts

Water quality database (2014)

Link to a WWW with ~130 sites studying hydrology or water quality - Australia 2013

Hydrology field studies database (2014)

Link to Sites database (~150) with experimentation/monitoring of water balance, hydrology and water quality across Australia. Not complete, last up

Decision support and education aids (2004)

A collection of decision support and  learning  tools Factsheet 2004.

Howleaky (2006)

Brief description of Howleaky

SoilWaterApp

Estimating soil water status application (iOS only) Soilwater App (SWApp) provides Australian farmers and advisers with a ready estimate of plant a

Demystifying modelling 2004

D.J. Rattray, D.M. Freebairn , D. McClymont, D.M. Silburn, J. Owens and B. Robinson 2004 HOWLEAKY? THE JOURNEY TO DEMYSTIFYING SIMPLE TECHNOLOGY

An instructive model

Model interface suited to learning and analysis. Conference Proceedings PUR$L 2003.

Learning & Decision support (2001)

Simplified models  have some advantages over complex models. Simplification and specialisation can offer some real advantages in modelling tools.

Linking management to nutrient losses in runoff

B. Robinson, D. Rattray, D. Freebairn3, D.M. Silburn and D. McClymont Using a Simple Hydrologic Model to Link Management to Nutrient Concent

How much model detail is enough?

David M Freebairn, Justin Cutajar, Mark Silburn 2012 Assessing water quality from farms – how much detail is required for a model to be useful?&

Pragmatic parameterisation (2020)

A pragmatic parameterisation and calibration approach to model hydrology and water quality of agricultural landscapes and catchments. Ghahramani, A

PERFECT model I (1992)

Impact of soil erosion on production in cropping systems .I. Development and validation of a simulation model M Littleboy, DM Silburn, DM Freebairn

PERFECT model II (1992)

Impact of soil erosion on production in cropping systems .II. Simulation of production and erosion risks for a wheat cropping system M Littleboy, DM F

PERFECT Manual V3.0 (1999)

Productivity Erosion Runoff Functions to Evaluate Conservation Techniques M. Littleboy, D.M. Freebairn, D.M. Silburn D.R. Woodruff and G.L. Hammer Que

Model application in semi-arid tropics - India (1996)

 An Indian case study applying the PERFECT model. M Littleboy, AL Cogle, GD Smith, DF Yule and KPC Rao 1996 Soil management and production of alf

Publication list Howleaky and PERFECT (2017)

Updated to 2017

Where do models fit in natural resource management?

A pictorial on why and where models fit in assessing natural resource assessment and management.

A process for assessing water quality (slides)

A rationale for estimating water quality signatures for land uses and management options (2013, 2023)

How much detail? A case study (slides)

How much detail is required to specify a model? ‐ a case study using three levels of detail in soil and vegetation description

HowLeaky v5.49.03 (Desktop Version)

This executable is the latest version of the HowLeaky Desktop Application (C++ Version). Latest version: HowLeaky v5.49.03 Release date: 1 Nov 2

HowLeaky Console (V6.0.1)

This is the latest version of the HowLeaky Console Appliation. This version will run on Windows Desktop, but has no interface as it runs from the comm