Creative Commons Attribution 4.0 International
You may use this work for commercial purposes.
You must attribute the creator in your own works.
This dataset was last updated on MfE Data Service on 20 Nov 2019.
Ground-level (tropospheric) ozone (O3) exists at a natural background level but is also produced when nitrogen oxides (NOx) and volatile organic compounds from vehicle emissions, petrol fumes, industrial processes solvents, and other human-made sources react in the presence of sunlight. It is the primary component of photochemical smog.
Ozone also occurs naturally in the stratosphere, where it protects us from ultraviolet radiation – this ozone occasionally can mix downwards to ground level.
Because sunlight and warmth are required for the chemical reactions that form ground-level ozone, peak concentrations often occur in summer when daylight hours are longer and temperatures are higher. Since the precursors for ozone can travel downwind from their sources before they react with sunlight, ozone concentrations can be high many kilometres from the precursor emissions’ sources.
Exposure to high concentrations of ozone can cause respiratory health problems and is linked to cardiovascular health problems and mortality. It can also damage vegetation.
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.
Table ID | 98423 |
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Data type | Table |
Row count | 535064 |
Services | Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed |
Creative Commons Attribution-NonCommercial 4.0 International
You may not use this work for commercial purposes.
You must attribute the creator in your own works.
This dataset was first added to MfE Data Service on 25 Apr 2017.
Submerged plants are good indicators of the ecological quality of lakes. Because they are attached to the bed of lakes, submerged plants are easy to observe and identify, and they are unable to move away from environmental changes. The plant species found within lakes can tell us about their level of habitat degradation and exotic weed invasion.
The file contains Lake submerged plant index scores for each sampling occasion.
Table ID | 53606 |
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Data type | Table |
Row count | 248 |
Services | Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed |
Creative Commons Attribution 4.0 International
You may use this work for commercial purposes.
You must attribute the creator in your own works.
This dataset was first added to MfE Data Service on 16 Oct 2019.
These data estimate the occurence of extreme wave events in coastal and oceanic waters for 2012, particularly for wave events where significant wave height exceeds a threshold of 8 metres and for a period of at least 12 hours. Significant wave height is defined as four times the square root of the variance of sea surface elevation due to wave motion.
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.
Layer ID | 104088 |
---|---|
Data type | Grid |
Resolution | About 13356.000m |
Services | Raster Query API, Catalog Service (CS-W), data.govt.nz Atom Feed |
Creative Commons Attribution 4.0 International
You may use this work for commercial purposes.
You must attribute the creator in your own works.
This dataset was first added to MfE Data Service on 16 Oct 2019.
These data estimate the occurence of extreme wave events in coastal and oceanic waters for 2012, particularly for wave events where significant wave height exceeds a threshold of 6 metres and for a period of at least 12 hours. Significant wave height is defined as four times the square root of the variance of sea surface elevation due to wave motion.
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.
Layer ID | 104087 |
---|---|
Data type | Grid |
Resolution | About 13356.000m |
Services | Raster Query API, Catalog Service (CS-W), data.govt.nz Atom Feed |
Document ID | 22371 |
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File name | oceanic_and_coastal_extreme_waves_spatial_data_quality_reportpdf.pdf |
Type | |
Size | 449 KB |
Document ID | 22370 |
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File name | oceanic_and_coastal_extreme_waves_spatial_data_quality_reportpdf.pdf |
Type | |
Size | 449 KB |
Document ID | 22347 |
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File name | oceanic_and_coastal_primary_productivity_1998_2017_data_quality_reportpdf.pdf |
Type | |
Size | 570 KB |
Document ID | 22345 |
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File name | sea_surface_temperature_1982_2016_data_quality_reportpdf.pdf |
Type | |
Size | 576 KB |
Document ID | 22344 |
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File name | ocean_acidification_nzoaon_rawcsv.csv |
Type | CSV |
Size | 64.7 KB |
Document ID | 22343 |
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File name | ocean_acidification_munida_rawcsv.csv |
Type | CSV |
Size | 15.3 KB |