Annual average temperature anomaly (1909–2013)

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Creative Commons Attribution 3.0 New Zealand

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9165
118
Added
01 Oct 2015

This dataset was first added to MfE Data Service on 01 Oct 2015.

Temperature change is influenced by changes in atmospheric composition that result from greenhouse gas emissions. It is also linked to atmospheric circulation changes (eg the El Niño southern oscillation). It can have a significant effect on agriculture, energy demand, and recreation. The primary purpose of the dataset is to provide a long time series which represents the nation-scale state of climate with respect to temperature in New Zealand.
Further information can be found in:
Tait, A, Macara, G, & Paul, V. (2014) Preparation of climate datasets for the 2015 Environmental Synthesis Report: Temperature, Rainfall, Wind, Sunshine and Soil Moisture. Prepared for Ministry for the Environment. Available at data.mfe.govt.nz/x/Fwn9AL on the Ministry for the Environment dataservice (data.mfe.govt.nz/).
This dataset relates to the "National temperature time series" measure on the Environmental Indicators, Te taiao Aotearoa website.

Table ID 52572
Data type Table
Row count 1793
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Land cover, 1996–2012

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Creative Commons Attribution 4.0 International

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9112
67
Added
16 Apr 2018

This dataset was first added to MfE Data Service on 16 Apr 2018.

Land cover describes the extent of vegetation, water bodies, built environments, and bare natural surfaces (eg gravel and rock) across New Zealand. Measuring the composition of and changes in land cover can help us understand the pressures that different land uses are placing on the biodiversity and functioning of ecosystems.

This measure reports on land cover by class, regional council area, and year.

For more information on the Landcover Database please refer to: lris.scinfo.org.nz/layer/48423-lcdb-v41-land-cover...

Table ID 95348
Data type Table
Row count 3316
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Ozone hole, 1979–2016

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Creative Commons Attribution 4.0 International

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9043
89
Added
14 Oct 2017

This dataset was first added to MfE Data Service on 14 Oct 2017.

Ozone is a gas that forms a naturally occurring layer in the upper atmosphere (stratosphere), protecting Earth from the sun’s ultraviolet (UV) light. The ozone hole is an area of reduced stratospheric ozone. It forms in spring over Antarctica because of ozone-depleting substances (ODSs) produced from human activities. The ozone hole has started to shrink due to the phase-out of ODSs, and it is possible that it will cease to form by the middle of this century.
The ozone hole does not have a large effect on the concentration of ozone over New Zealand. However, when the ozone hole breaks up in spring, it can send ‘plumes’ of ozone-depleted air over New Zealand. Reporting on the state of the ozone hole helps us understand the state of ozone concentrations globally.
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 89466
Data type Table
Row count 37
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Use of Māori land, land use, 2006–16

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Creative Commons Attribution 4.0 International

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9022
49
Added
16 Apr 2018

This dataset was first added to MfE Data Service on 16 Apr 2018.

Land (whenua) is taonga tuku iho (cultural property, heritage) and of special importance to Māori. As the whakapūmautanga (legacy for the future), whenua provides for cultivation and storage of traditional foods and plants – for customary use and mahinga kai, and helps sustain each generation.

We report only on the available data we have, which cover a subset of Māori land used for primary production activities. The main land use types covered are grassland, forest plantation, bush and scrub, and horticulture.

Table ID 95351
Data type Table
Row count 990
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

River water quality trends by monitoring site, 1989-2013

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Creative Commons Attribution 3.0 New Zealand

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8934
130
Added
29 Sep 2015

This dataset was first added to MfE Data Service on 29 Sep 2015.

River water quality water 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 ‘nuisance’ growths of river algae and aquatic plants, degrading habitat. High concentrations in the form of ammoniacal nitrogen and nitrate-nitrogen can be toxic to fish and other aquatic animals. 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.

Trend statistics and calculation results for the periods 1989-2013, 1994-2013, and 2004-2013 are provided by monitored site. Units for parameters are mg/m3, except CLAR (m). Refer to Larned at al. 2015 for further details.

For more information please see:
Larned, S, Snelder, T, Unwin, M, McBride, G, Verburg, P, McMillan, H (2015).Analysis of Water Quality in New Zealand lakes and Rivers: data sources, data sets, assumptions, limitations, methods and results. NIWA Client Report no. CHC2015-033. Available at data.mfe.govt.nz/x/DDui3u from the Ministry for the Environment dataservice.

This dataset relates to the "River water quality" measures on the Environmental Indicators, Te taiao Aotearoa website.

Table ID 52531
Data type Table
Row count 4148
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Hector’s and Māui dolphin deaths (1921–2015)

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Creative Commons Attribution 3.0 New Zealand

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8999
53
Added
19 Oct 2016

This dataset was first added to MfE Data Service on 19 Oct 2016.

The Hector’s and Māui dolphins are subspecies of the small dolphin Cephalorhynchus hectori. These coastal dolphins are endemic to New Zealand (not found anywhere else). Māui dolphins are found on the west coast of the North Island, most often between Maunganui Bluff, north of Dargaville, and New Plymouth. Hector’s dolphins are mostly found around the South Island. Both subspecies are threatened with extinction. The Hector’s dolphin is classified as nationally endangered, while the Māui dolphin is nationally critical. Dolphins can become entangled in fishing gear used by both commercial and recreational fishers, with set nets posing a particularly high risk. Reporting the bycatch of protected species helps us understand the pressures our protected marine species face from fishing.
We report on two aspects of Hector’s and Māui dolphin deaths based on data extracted from the Department of Conservation (DOC) Incident Database for 1921–2015: the number of dolphin deaths by cause of death, including a comparison of deaths over 1996–2015; and the number of dolphin deaths from entanglement by type of fishing gear.

Table ID 53475
Data type Table
Row count 561
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

New Zealand greenhouse gas emissions sub-sector summary data, 1990 and 2015

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Creative Commons Attribution 4.0 International

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8945
83
Added
13 Oct 2017

This dataset was first added to MfE Data Service on 13 Oct 2017.

New Zealand greenhouse gas emissions data for 1990 and 2015. Data are sourced from the 1990–2015 New Zealand Greenhouse Gas Emissions Inventory. Emissions are provided by sector (Energy, Indistrail processes and product use, Agriculture, Land–use, land–use change and Forestry; and Waste) and sector subcategory. IPCC 2004 global warming potential values were used during conversion to CO2 equivalents. Greenhouse gases (GHGs) absorb heat from Earth’s surface, warming the atmosphere and changing our climate. New Zealand’s share of GHG emissions is very small, but our gross emissions per person are high. Emissions mainly come from combustion of fossil fuels that emit carbon dioxide (CO2), and agriculture which emits methane (CH4) and nitrous oxide (N2O). Carbon dioxide remains in the atmosphere much longer than other major GHGs. Because of this, today’s global CO2 emissions will continue to influence atmospheric CO2 concentrations for a very long time. Methane and N2O trap heat better than CO2 but leave the atmosphere faster. Reducing emissions of CH4 and N2O will decrease concentrations in the atmosphere more quickly.Greenhouse gases (GHGs) absorb heat from Earth’s surface, warming the atmosphere and changing our climate. New Zealand’s share of GHG emissions is very small, but our gross emissions per person are high. Emissions mainly come from combustion of fossil fuels that emit carbon dioxide (CO2), and agriculture which emits methane (CH4) and nitrous oxide (N2O). Carbon dioxide remains in the atmosphere much longer than other major GHGs. Because of this, today’s global CO2 emissions will continue to influence atmospheric CO2 concentrations for a very long time. Methane and N2O trap heat better than CO2 but leave the atmosphere faster.
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 89431
Data type Table
Row count 96
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Freshwater fish observational data, 1977-2015

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Creative Commons Attribution 3.0 New Zealand

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8933
81
Added
24 Apr 2017

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

Freshwater fish are an important component of freshwater ecosystems, have intrinsic biodiversity values and are a valued resource for Māori, recreational and commercial fishers. The presence or absence of a fish species can be affected by changes in catchment land cover and land use, in-stream habitat, fish passages (routes for moving up and down waterways), pests, and contaminants.

The file contains the information associated with each record in the New Zealand Freshwater Fish Database used in the report, and the associated River Environment Classification information of the location of the observation.

Table ID 53599
Data type Table
Row count 26915
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Conservation status of indigenous land species, 2010–16

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Creative Commons Attribution 4.0 International

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8939
57
Added
16 Apr 2018

This dataset was first added to MfE Data Service on 16 Apr 2018.

New Zealand has unique indigenous plants and animals that are our national taonga (treasures). Because most are endemic (found nowhere else in the world) New Zealand makes an important contribution to global biodiversity. Biodiversity is important for ecosystem processes, te ao Māori including mahinga kai (customary food gathering), and culture and recreation.

The conservation status of our biodiversity represents their risk of extinction. This data covers the conservation status, and most-recent change in status, of native and resident taxa for which we had sufficient information on abundance and distribution. This includes bats, birds, earthworms, lichens, plants, reptiles and frogs, snails, spiders, and insects.

We also include the number of species that have had a genuine change in conservation status between assessment periods.Where conservation status changed, this measure also looked at the NCTCS listings done in 2012 for birds (Robertson et al, 2017); 2012 for reptiles (Hitchmough et al, 2015); and 2010 for Orthoptera (Trewick et al, 2012). A change in a species’ conservation status reflects a change in its risk of extinction.

For more information on the Department of Conservation’s Threat Classification System (NZTCS) please refer to: www.doc.govt.nz/nztcs

Table ID 95341
Data type Table
Row count 8679
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Predicted river water quality, 2009–13

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Creative Commons Attribution 3.0 New Zealand

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8796
143
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.

Table ID 53601
Data type Table
Row count 593444
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed
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