PDF Reports
Nutrient concentration criteria for periphyton biomass objectives
February 2023
LWP collaborated with scientists at NIWA to derive nutrient criteria to achieve periphyton biomass objectives for rivers in New Zealand.
LWP collaborated with scientists at NIWA to derive nutrient criteria to achieve periphyton biomass objectives for rivers in New Zealand.
Research article on continuous measures of confidence in trend direction
February 2023
This article proposes abandoning null hypothesis significance tests in favour of continuous measures of confidence in direction of environmental trends
This article proposes abandoning null hypothesis significance tests in favour of continuous measures of confidence in direction of environmental trends
Research article on land use suitability
February 2023
This study shows land-use suitability of land parcels is dependent on land and water management choices made elsewhere in the...
This study shows land-use suitability of land parcels is dependent on land and water management choices made elsewhere in the...
Relationships between flow and river water quality data
February 2023
This study for Auckland Council examined the influence of river flow on river water quality across a range of timescales...
This study for Auckland Council examined the influence of river flow on river water quality across a range of timescales...
Contribution of the Highlanders Rugby franchise to the economy of Dunedin City and the Otago Region
May 2022
The Highlanders Rugby franchise competes in the Super Rugby competition. LWP was commissioned to evaluate the Highlander’s economic contribution to Dunedin and Otago.
The Highlanders Rugby franchise competes in the Super Rugby competition. LWP was commissioned to evaluate the Highlander’s economic contribution to Dunedin and Otago.
Horizons Regional Council science plan to inform the NPS-FM objective and limit setting process
April 2022
This report describes the role of HRC’s science team under the National Policy Statement – Freshwater Management (NPS-FM) process.
This report describes the role of HRC’s science team under the National Policy Statement – Freshwater Management (NPS-FM) process.
Water quality trend analysis functions for R
November 2021
The LWP-Trends library to undertake water quality trend analysis in the R statistical computing environment (updated 17 November 2021).
The LWP-Trends library to undertake water quality trend analysis in the R statistical computing environment (updated 17 November 2021).
Trend assessment guidance including worked examples
May 2021
Guidance for the analysis of temporal trends in environmental data including and R code and data for worked examples.
Guidance for the analysis of temporal trends in environmental data including and R code and data for worked examples.