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Predefined features

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Add features from the "Feature report" pane to get details reports.
You will find all saved features here.

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The layers in this category (e.g. cartographic text, transport and water) can be overlaid on your map as contextual information.

This layer represents the load reduction required to achieve at least the NOF (National Objectives Framework) C-band for sediment levels in critical catchments. The NOF C-band ensures water quality suitable for secondary contact recreation, such as boating and wading, by maintaining moderate sediment levels.

The map layer visualises the yield proportion, which is calculated by dividing the sediment load (expressed in tonnes of sediment per square kilometer per year (t/km²/yr)) by the catchment area. The yield proportion is used to show the reduction required, expressed as a percentage of the current sediment yield. For example, if a catchment currently yields a certain amount of sediment per square kilometer per year, this layer shows the proportion of that yield which must be reduced to meet the NOF C-band standard.

This dataset is based on spatial statistical models comparing predicted sediment concentrations against the National Bottom Lines for visual clarity and sediment loads in New Zealand's river environments. The analysis spans a 5-year period from 2016 to 2020, providing average annual loads and focused on reducing excess sediment loads to meet the NOF C-band. The data is based on the digital river network used by the River Environment Classification (REC).

N.B. Data has been clipped using LINZ 1:250k lakes, therefore the map will show no data and there will be no reporting over these areas.

Add features of interest to generate a report

To draw a custom area on the map
  • Click multiple times around the map to create a custom area
  • To close your selection area, double click on the map or click on your starting point

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Add features of interest to generate a report

To draw a custom area on the map
  • Click multiple times around the map to create a custom area
  • To close your selection area, double click on the map or click on your starting point

Loading...
Custom features

loading...

  • ...
Predefined features

loading...

Add features from the "Feature report" pane to get details reports.
You will find all saved features here.

The layers in this category (e.g. cartographic text, transport and water) can be overlaid on your map as contextual information.

This layer represents the load reduction required to achieve at least the NOF (National Objectives Framework) C-band for sediment levels in critical catchments. The NOF C-band ensures water quality suitable for secondary contact recreation, such as boating and wading, by maintaining moderate sediment levels.

The map layer visualises the yield proportion, which is calculated by dividing the sediment load (expressed in tonnes of sediment per square kilometer per year (t/km²/yr)) by the catchment area. The yield proportion is used to show the reduction required, expressed as a percentage of the current sediment yield. For example, if a catchment currently yields a certain amount of sediment per square kilometer per year, this layer shows the proportion of that yield which must be reduced to meet the NOF C-band standard.

This dataset is based on spatial statistical models comparing predicted sediment concentrations against the National Bottom Lines for visual clarity and sediment loads in New Zealand's river environments. The analysis spans a 5-year period from 2016 to 2020, providing average annual loads and focused on reducing excess sediment loads to meet the NOF C-band. The data is based on the digital river network used by the River Environment Classification (REC).

N.B. Data has been clipped using LINZ 1:250k lakes, therefore the map will show no data and there will be no reporting over these areas.

Select a layer to view its associated legend.
  {{legend.shortName}} {{ legend.shortName }}
 
{{legend.shortName}}
 

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