TY  - BOOK
AU  - Davies-Colley,Rob
AU  - McBride,Graham
ED  - New Zealand.
ED  - National Institute of Water and Atmospheric Research (N.Z.)
TI  - Accounting for changes in method in long-term nutrient data : : recommendations based on analysis of paired SoE data from Wellington rivers / 
PY  - 2017///]
CY  - [Wellington, N.Z. : 
PB  - Ministry for the Environment, 
KW  - WATER QUALITY
KW  - WELLINGTON REGION
KW  - NEW ZEALAND
KW  - RIVERS
KW  - NUTRIENTS
KW  - NITROGEN
KW  - PROTOCOLS
KW  - WATER QUALITY MANAGEMENT
KW  - WATER SAMPLES
KW  - WATER ANALYSIS
N1  - "June 2016"; Publication date: October 2017; Publication reference number: CR 288; NIWA Client Report No: HAM2016-070. Report date: June 2016. 
NIWA Project: MFE16206; Executive summary -- 1 Introduction -- 1.1 Estimation of total nitrogen -- 1.2 Field versus laboratory filtration for dissolved nutrients -- 1.3 Screen vs trace level measurement of dissolved nutrients -- 2 US Geological Survey studies of total nitrogen estimation -- 3 Methods -- 3.1 Paired nutrient data in Wellington river SoE datasets -- 3.2 Data comparisons -- 4 Results and discussion -- 4.1 Estimation of total nitrogen -- 4.2 Field versus laboratory filtration -- 4.3 Trace versus screen analysis of dissolved nutrients -- 5 Changing measurement protocols -- 5.1 Why is such duplicate sampling necessary? -- 5.2 Ramifications of changed protocols and bias -- 6 Recommendations -- 6.1 General -- 6.2 Total nitrogen -- 6.3 Dissolved nutrients -- 7 Acknowledgements -- 8 Glossary of abbreviations and terms -- 9 References
N2  - The Ministry for the Environment has commissioned the National Institute of Water and Atmospheric Research to compare nutrient measurements in Wellington rivers by national recommended protocols versus Greater Wellington Regional Council’s historical protocols.
The purpose of this work was to look at the impact on regional councils’ long term nutrient measurements if monitoring protocols were changed, using Greater Wellington Regional Council as a case study
UR  - http://www.mfe.govt.nz/publications/fresh-water/accounting-changes-method-long-term-nutrient-data
UR  - http://docs.niwa.co.nz/library/public/HAM2016-070.pdf
ER  -