Browse By Author A-Z

Excess nutrients in surface water systems cause many environmental problems. Some governments restrict nutrient overloading through nutrient permits. Economic theory states that the best allocation of such permits is made via trading. However, nutrient permit trading is complicated by two factors associated especially with non-point sources: (1) time lags between loading and appearance in a... [Conference Paper]

We show how to set up a physically and economically correct market for ground and surface water, using a modified version of MODMAN. MODMAN uses MODFLOW to produce a response matrix, which in turn becomes part of a linear program (LP). Greenwald showed how to use this mechanism to optimize various groundwater problems. We show how to use MODMAN to create an LP suitable for sustainable water... [Conference Paper]

published as CD-ROMResearch is underway throughout the world into alternative approaches to water allocation that can maximise economic efficiency while respecting environmental bottom lines and ensuring the rule of law. One innovative programme, led by researchers at the University of Canterbury, is examining the potential for a spot market for water. Building on the successful implementation of a spot market... [Conference Paper]

Society faces high costs due to environmental degradation from sediment discharge. Development can increase stream peak flows and sediment discharge. Excess sediment discharges threaten natural habitat, recreational places, rural areas, and commercial ports. In New Zealand, the 2004 North Island floods were estimated to cost about NZ$300 million. Annual soil erosion and sedimentation in NZ cost... [Conference Paper]

TR-COSC 05/03We describe a modelling language, called XML:LP, for presenting linear and integer programs in XML, with related tools for displaying models and their solutions in web browsers. Our tools dynamically generate different model or solution views by applying different style sheets to the same model file. Graphical views help users comprehend solution and sensitivity information. We use SVG for the... [Report]

Damage caused from stormwater runoff is becoming more frequent and occurring in places that were previously free of these problems. In order to reduce this problem, authorities have looked at different mechanisms for controlling and minimising the costs of floods. This paper proposes a smart market (SM) for runoff from impervious cover to reduce the mitigation and prevention costs for damages... [Conference Paper]

New Zealand’s hydrologists were surveyed to determine what information they believe is lacking and what information they believe is important for more effective management and allocation of New Zealand’s freshwater supply. Two research questions and five qualitative questions related to information needs and water policy were administered to 79 hydrologists through an online survey. The... [Journal Article]

Water pollution from non‐point sources is a global environmental concern. Economists propose tradable permit systems as a solution, but they are difficult to implement due to the nature of non‐point sources. We present a pollution offset system for trading non‐point source water pollution permits. Conventional pollution offset systems suffer from thin markets and transaction costs. In... [Journal Article]

This report presents a proposed smart market for transferable discharge credits model, for managing and improving sediment discharge from catchments in the Auckland Region. [Report]