Update of National Groundwater Quality Indicators: State and Trends_metadata

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Raw data, and state and trend calculations for key groundwater quality indicators, including nitrate-nitrogen, ammoniacal-nitrogen, dissolved reactive phosphorus, dissolved iron, dissolved manganese, total dissolved solids content, and electrical conductivity.

Statistics reported on include:
- median and median absolute deviation
- percentiles
- trend magnitudes
- statistical test p-values (from the Mann-Kendall trend test, Kruskal-Wallis test for seasonality, and sign-tests and Wilcoxon rank-sum tests for distribution differences).

The following report and spreadsheets relate to the "Ground water quality" measures on the Environmental Indicators, Te taiao Aotearoa website:
- Moreau M, Daughney C, 2015. Update of National Groundwater Quality Indicators: State and Trends December 2004-2013, GNS Science Consultancy Report 2015/16. 38 p.
- Spreadsheet2_NGMP_results
- Spreadsheet1_NGMP_metadata
- raw_data_for trends_NGMP.

Document ID11709
File nameupdate-of-national-groundwater-quality-indicators-state-and-trends_metadata.xlsx
TypeXLSX
Size437 KB

Global greenhouse gas emissions

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Carbon monoxide trend statistics xlsx

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02 Oct 2015

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Red list status of rare ecosystems xlsx

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Document ID11144
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Max 3 day rainfall trend statistics xlsx

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Nitrate leaching from livestock time series 1990–2017 data quality

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File namenitrate-leaching-from-livestock-time-series-19902017-data-quality.pdf
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Ocean colour satellite observations

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Document ID11466
File nameocean-colour-satellite-observations.pdf
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Ocean acidity trend statistics xlsx

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06 Oct 2015

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Document ID11429
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Nitrogen dioxide trend statistics xlsx

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Document ID11657
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Livestock numbers trend statistics xlsx

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Document ID11347
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