Predicted river water quality, 2009–13

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Creative Commons Attribution 3.0 New Zealand

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163
19
Added
24 Apr 2017

This dataset was first added to MfE Data Service on 24 Apr 2017.

River water quality is valued for many reasons including ecological function and habitat, recreational value, its role in supporting people and industry, and its cultural significance. Nutrients such as nitrogen and phosphorus are essential for plant growth, however too much in rivers can lead to excessive growth of river algae, which can degrade habitat.

High concentrations of nitrogen in the form of ammoniacal nitrogen and nitrate-nitrogen can be toxic to fish and other aquatic animals, and nitrate-nitrogen can be toxic to humans. Water clarity is a measure of underwater visibility, and affects habitat of aquatic life such as fish and birds, and can also impact on aesthetic values and recreational use of rivers and streams. Escherichia coli (E.coli) can indicate the presence of pathogens (disease-causing organisms) from animal or human faeces, which can cause illness.

File contains the model outputs for river water quality indicators as medians for each river segment in New Zealand’s digital river network.

License

Creative Commons Attribution 3.0 New Zealand

You may use this work for commercial purposes.

You must attribute the creator in your own works.

Technical Details
Table ID 53601
Data type Table
Row count 593444
Columns field_1, nzsegment, CLAR, DRP, ECOLI, NH4N, NO3N, TN, TP, MCI, Dist2Coast, catAreaKM2, downcoordX, downcoordY, upcoordX, upcoordY, StreamOrder, nzmge_ds, nzmgn_ds, nzmge_us, nzmgn_us, SoF, Region, SegLength
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed
History
Added 24 Apr 2017
Last updated 24 Apr 2017
Revisions 4 - Browse all revisions
Current revision Imported on July 13, 2017 from CSV .