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Catchment Nutrient Modelling Parameters

Description

Report describing the uncertainty of parameters representing diffuse source losses and attenuation in process-based catchment nutrient models.
In addition, the derivation of a new class of purely empirical catchment models (‘empirical models') is described.
This provides empirical type yield (ETY) and empirical type concentration (ETC) parameters for modelling total nitrogen yields and concentrations in any catchment in New Zealand.

 

Date: May 2023 Version: Final

Owner: LWP

Contact: LWP Ltd, NIWA Ltd, RMA Science Ltd

 

Link to report / paper

 

Preview Image

 

Dataset attributes

Spatial extent
Spatial resolution
Temporal extent
Temporal resolution
Evaluation method (Validation)
Evaluation result (Numeric)
Evaluation result (Categorical)
Uncertainty method
Uncertainty data format (Numeric)
Uncertainty data format (Categorical)

 

Methodology

Snelder T, Cox T, Fraser C, Kerr T, Elliot S (2023) Quantifying Catchment Nutrient Modelling Parameters. An analysis using the available New Zealand data. LWP Client Report 2023–03. LWP Ltd, Christchurch, New Zealand.

 

Fitness for purpose / limitations

This table indicates whether the dataset is suitable for different types of questions at different scales.

Note: Users should carefully consider their purpose as this dataset may not be suitable.

Operational Absolute Relative Screening/scoping
Block/farm No No No No
Multi-farms(5+) No No No No
Catchment No No Maybe Yes
National/regional No No Maybe Yes
Caveat(s) Coarse national scale empirical model

Data and Resources