Modelled lake water quality, 2013-2017

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Creative Commons Attribution 4.0 International

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Added
06 Apr 2020

This dataset was first added to MfE Data Service on 06 Apr 2020.

This indicator reports on six measures of lake water quality based on spatially modelled data for:

  • chlorophyll-a
  • total nitrogen
  • ammoniacal nitrogen
  • total phosphorus
  • water clarity
  • trophic level index (TLI3).

For these measures we report on:

  • modelled median values for the period 2013–17
  • for selected measures, how these values compare to the National Objectives Framework (NOF) bands related to ecosystem health (MfE, 2017).

This indicator includes spatial predictions for 3,802 of 3,820 lakes in New Zealand (majority of New Zealand lakes that are larger than 1 hectare), based on measurements at 61–104 lake sites (the number of sites differs by measure).

More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf.

License

Creative Commons Attribution 4.0 International

You may use this work for commercial purposes.

You must attribute the creator in your own works.

Technical Details
Table ID 104560
Data type Table
Row count 30416
Columns field_1, lake_id, period, region, measure, measure_abbreviation, median, unit, band_classification, band, national_bottom_line, exceeding_national_bottom_line, dominant_landcover, nof_lake_type, lake_perimeter, lake_depth, lake_area, lake_number, lake_name, east_nzmg, north_nzmg
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed
History
Added 6 Apr 2020
Revisions 5 - Browse all revisions
Current revision Imported on April 6, 2020 from CSV .