View Our Strategy Document 2019 – 2024
August 30, 2024
Resources related to
Measuring Water Quality
Andriy Medvediuk - 123RF
How will we know if the actions people all over Aotearoa are taking to improve the health of our freshwater are working? Our research is striving to fill data gaps and build knowledge about how to measure and model water quality.
Showing 1 - 12 of 131 results
Journal Article
Evidence for the effects of land use on freshwater ecosystems in New Zealand
We used the pressure-state-impact (PSI) framework to assess evidence of land-use effects on New Zealand freshwater ecosystems. There was substantial evidence of land-use effects, particularly…
Journal Article
Development and validation of a nation-scale framework to characterize the fate and transport of key agricultural contaminants
A hydrological framework encompassing nitrogen (N), phosphorus (P) and microbial (E. coli) transfer from land to water was developed to provide a consistent and rapid…
Journal Article
Development of a national-scale framework to characterise transfers of N, P and Escherichia coli from land to water
A hydrological framework encompassing nitrogen (N), phosphorus (P) and microbial (E. coli) transfer from land to water was developed to provide a consistent and rapid…
Method
Achieving unbiased predictions of national-scale groundwater redox conditions via data oversampling and statistical learning
An important policy consideration for integrated land and water management is to understand the spatial distribution of nitrate attenuation in the groundwater system, for which…
Journal Article
CLUES model calibration and its implications for estimating contaminant attenuation
Catchment water quality models are essential for freshwater management; however, their value is dependent on their performance and level of uncertainty. Here we present the…
Journal Article
Nitrogen loads to New Zealand aquatic receiving environments: Comparison with regulatory criteria
There is concern about the deteriorating nutrient status of aquatic receiving environments in New Zealand. We estimated the amount by which current nitrogen (N) concentrations…
Model
Land-Water Interoperable Models
This report summarisises the work of the Interoperable Modelling Systems for Integrated Land and Water Management programme. The programme aimed to develop an interoperable modelling…
Technical Report
Interoperable Modelling – spatial economic optimisation
In this report we describe the application of the spatial modelling and optimisation framework LUMASS as a spatial optimisation tool in the Interoperable Modelling Project.…
Journal Article
On the use of stressor-response relationships in the management of lake eutrophication
Since the 1960s, theoretical and empirical advances in limnology have offered lake managers different approaches to address lake eutrophication problems. The Vollenweider input–output model and…
Infographic
Denitrification completeness is related to oxygen
Groundwater denitrification varied across the sites studied by the Benign Denitrification in Groundwaters project. The main end product of groundwater denitrification (nitrogen gas or nitrous…
Journal Article
The biotic contribution to the benthic stream sediment phosphorus buffer
Benthic stream sediments interact strongly with phosphorus (P) and can buffer dissolved reactive P (DRP) concentrations. The sediment P buffer can be measured with the…
Journal Article
Modeling Water Quality in Watersheds: From Here to the Next Generation
In this synthesis, we assess present research and anticipate future development needs in modeling water quality in watersheds. We first discuss areas of potential improvement…