LUCAS NZ Forest Clearing 2008-2020 v019

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

8264
101
Updated
11 May 2022

This dataset was last updated on MfE Data Service on 11 May 2022.

Areas of LUCAS LUM forests that have been cleared between 2008 and 2020 inclusive. Forest clearing is detected using mosaics of satellite imagery captured over a range of dates; therefore the year of clearing provided is nominal.

Layer ID 99909
Data type Vector multipolygon
Feature count 47241
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Annual glacier ice volumes, 1977–2016

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Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

8427
68
Added
16 Oct 2017

This dataset was first added to MfE Data Service on 16 Oct 2017.

A glacier is a body of slow-moving ice, at least 1 hectare in area that has persisted for two decades or longer. New Zealand has 3,144 glaciers. Most are located along the Southern Alps on the South Island, although Mount Ruapehu on the North Island supports 18 glaciers. New Zealand’s large glaciers are noteworthy for their large debris cover. The exceptions, Franz Joseph and Fox glaciers, are rare examples of glaciers that terminate in a rainforest.
Glacier volume is strongly influenced by climate factors, such as temperature and precipitation, which scientists expect to be affected by the warming climate. Glacial ice is an important water resource. Changes to ice storage and melting can affect ecological and hydropower resources downstream, as well as important cultural values and tourism.
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 89472
Data type Table
Row count 40
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

River flows

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Creative Commons Attribution 3.0 New Zealand

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22439
1486
Added
17 Feb 2016

This dataset was first added to MfE Data Service on 17 Feb 2016.

"River flow refers to the quantity of water passing a point in the river over a certain amount of time. Different rivers have different flow patterns, such as sharp peak flows following rain with low flows in between, or high spring flows from snow melt. These flow characteristics affect how much water is available for irrigation, drinking water, hydro–electric power generation, and recreational activities such as fishing and boating. River flows are also very important for maintaining the health and form of a waterway.

This dataset relates to the "Geographic pattern of natural river flows" measure on the Environmental Indicators, Te taiao Aotearoa website. "

For more information, refer to the March 2015 report: 'Hydrological indices for national environmental reporting' data.mfe.govt.nz/document/11463-hydrological-indic....

Layer ID 53309
Data type Vector multilinestring
Feature count 576277
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Sentinel2 2021 Mainland NZ Footprints

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Creative Commons Attribution 4.0 International

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934
4
Added
07 Nov 2021

This dataset was first added to MfE Data Service on 07 Nov 2021.

INDEX ONLY: These footprints are the index for the 'Sentinel2 2021 Mainland NZ' mosaic. It has been provided to enable users to explore coverage and capture dates of the component imagery. To enquire about ordering the imagery itself, please e-mail lucas[at]mfe.govt.nz.

The imagery represented is a 10m, ten-band multispectral, cloud-minimised mosaic of Sentinel 2A and 2B satellite tiles over mainland New Zealand made from scenes captured late-2020/early-2021.

Layer ID 106409
Data type Vector multipolygon
Feature count 84
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Sentinel2_2021_Mainland_NZ_thumb.jpg

112
23
Updated
07 Nov 2021

This item was last updated on MfE Data Service on 07 Nov 2021

Document ID23353
File namesentinel2_2021_mainland_nz_thumbjpg.jpg
TypeJPG
Size48.3 KB

Sentinel2 2021 Chatham Islands Footprints

Licence

Creative Commons Attribution 4.0 International

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802
1
Added
07 Nov 2021

This dataset was first added to MfE Data Service on 07 Nov 2021.

INDEX ONLY: These footprints are the index for the 'Sentinel2 2021 Chatham Islands' mosaic. It has been provided to enable users to explore coverage and capture dates of the component imagery. To enquire about ordering the imagery itself, please e-mail lucas[at]mfe.govt.nz.

The imagery represented is a 10m, ten-band multispectral, cloud-minimised mosaic of Sentinel 2A and 2B satellite tiles over Chatham Islands made from scenes captured late-2020/early-2021.

Layer ID 106408
Data type Vector multipolygon
Feature count 9
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Sentinel2_2021_Chatham_Islands_thumb.jpg

134
15
Updated
07 Nov 2021

This item was last updated on MfE Data Service on 07 Nov 2021

Document ID23352
File namesentinel2_2021_chatham_islands_thumbjpg.jpg
TypeJPG
Size45.5 KB

Updated suspended sediment yield estimator and estuarine trap efficiency model results 2019

Licence

Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

1759
48
Added
14 Aug 2019

This dataset was first added to MfE Data Service on 14 Aug 2019.

This dataset includes three “packages” of information, each with multiple variables. The packages include:

  1. Load – results on mean annual suspended sediment load reported by REC 2 river reach scale for various model scenario variations.
  2. Lakes – results on sediment inflow, outflow, and entrapment in lakes and reservoirs
  3. Coastal – results on sediment inflows, trap efficiency, and sedimentation rates in coastal hydrosystems (estuaries)

For further detail on the modelling methods and discussing results, see Hicks, M., Semademi-Davies, A., Haddadchi, A., Shankar, U., Plew, D. (2019) Updated sediment load estimator for New Zealand. NIWA Client Report No. 2018341CH, prepared for Ministry for the Environment. January 2019. Available online: environment.govt.nz/publications/updated-sediment-...

Note that some portions of this dataset refine and update 2011 modelling on suspended sediment loads across New Zealand, whereas other components, especially the coastal package, report new modelling results.

Layer ID 103686
Data type Vector linestring
Feature count 593466
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W)

Ground-level ozone seasonal trends, 2011-2020

Licence

Creative Commons Attribution 4.0 International

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You must attribute the creator in your own works.

587
1
Added
13 Oct 2021

This dataset was first added to MfE Data Service on 13 Oct 2021.

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 heat and 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.

Ozone is a colourless, odourless gas. Exposure to high concentrations of ozone can cause respiratory health problems and is linked to cardiovascular health problems and increased mortality. Those most at risk include people with asthma, children, older adults, and people who are active outdoors, such as outdoor workers. People with certain genetic characteristics and nutrient deficiencies are also at greater risk from ozone exposure. Ozone can also affect sensitive vegetation and ecosystems and can cause damage during the growing season.

This dataset reports on the seasonal trends assessed for the period 2011-2020.

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 106238
Data type Table
Row count 4
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

ozone_trend_seasonal_dqr.pdf

122
3
Updated
13 Oct 2021

This item was last updated on MfE Data Service on 13 Oct 2021

3
Document ID23326
File nameozone_trend_seasonal_dqrpdf.pdf
TypePDF
Size186 KB
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