907 datasets found

  • Marine Reserves

    Ministry for the Environment
    The location and extent of Marine reserves (type 1 marine protected areas) in the territorial sea.
    Created 3 May 2018 • Updated 8 August 2019

  • Annual Average PM2.5 Concentration

    Ministry for the Environment
    Note: PM2.5 concentrations are given in micrograms per cubic metre of air, or µg/m3. Source: Regional councils of Wellington, Canterbury; Auckland Council
    Created 3 May 2018 • Updated 8 August 2019

  • River Environment Classification Bay of Plenty (2010)

    Ministry for the Environment
    The New Zealand River Environment Classification (REC) organises information about the physical characteristics of New Zealand's rivers. Individual river sections are mapped according to physical factors such as climate, source of flow for the river water, topography, and geology, and catchment land cover eg, forest, pasture or urban. Sections of river...
    Created 3 May 2018 • Updated 8 August 2019

  • Average sea–surface temperature, 1993–2012

    Ministry for the Environment
    The ocean waters surrounding New Zealand vary in temperature from north to south. They interact with heat and moisture in the atmosphere and affect our weather. Long-term changes and short-term variability in sea-surface temperatures can affect marine processes, habitats, and species. Some species may find it hard to survive in changing environmental...
    Created 3 May 2018 • Updated 8 August 2019

  • Lightning_GroundStrikes_by_Region

    Ministry for the Environment
    Lightning is the discharge of electricity from thunderstorms. Ground strikes can cause significant damage to property and infrastructure, and injure or kill people and livestock. Lightning is often associated with other severe weather events, such as strong wind gusts. Thunderstorms may increase in frequency and intensity with climate change. This dataset...
    Created 3 May 2018 • Updated 8 August 2019

  • Modelled climate data June 2015

    Ministry for the Environment
    This project used statistical and spatial modelling to fill gaps in climate data and improve our ability to report on trends in the climate. This data covers climate variables such as rainfall, temperature and wind. This dataset has been produced by NIWA, please see the attached report and associated data files for more detail.
    Created 3 May 2018 • Updated 8 August 2019

  • LUCAS NZ Land Use Map 1990 2008 2012 2016 v006

    Ministry for the Environment
    The Land Use Map is composed of New Zealand-wide land use classifications (12) nominally at 1 January 1990, 1 January 2008, 31 December 2012 and 31 December 2016 (known as "1990", "2008", "2012" and "2016"). These date boundaries were dictated by the First and Second Commitment Periods of the Kyoto Protocol. The layer can therefore be used to create...
    Created 8 August 2019 • Updated 8 August 2019

  • Land cover, Area of land cover, 1996, 2001, 2008, and 2012

    Ministry for the Environment
    Land cover describes the extent of vegetation, water bodies, built environment, and bare natural surfaces (eg gravel and rock) across New Zealand. Measuring the composition and changes in land cover can help us better understand the pressures that different land uses are placing on the biodiversity and functioning of ecosystems. Column headings: area_ha =...
    Created 3 May 2018 • Updated 8 August 2019

  • Macroinvertebrate Community Index trends, by monitoring site, 2004-13

    Ministry for the Environment
    Benthic macroinvertebrates are small animals without backbones (eg insects and worms). They live on and under submerged logs, rocks, and aquatic plants on the beds of rivers and streams during some part of their life cycle. Macroinvertebrates play a central role in stream ecosystems by feeding on periphyton (algae), macrophytes (aquatic plants), dead...
    Created 3 May 2018 • Updated 8 August 2019

  • Marine Environment Classification EEZ 20 Classes (2010)

    Ministry for the Environment
    The Marine Environment Classification (MEC), a GIS-based environmental classification of the marine environment of the New Zealand region, is an ecosystem-based spatial framework designed for marine management purposes. Several spatially-explicit data layers describing the physical environment define the MEC. A physically-based classification was chosen...
    Created 3 May 2018 • Updated 8 August 2019

  • River Environment Classification Watershed Canterbury (2010)

    Ministry for the Environment
    The New Zealand River Environment Classification (REC) organises information about the physical characteristics of New Zealand's rivers. Individual river sections are mapped according to physical factors such as climate, source of flow for the river water, topography, and geology, and catchment land cover eg, forest, pasture or urban. Sections of river...
    Created 3 May 2018 • Updated 8 August 2019

  • River Environment Classification Watershed Waikato (2010)

    Ministry for the Environment
    The New Zealand River Environment Classification (REC) organises information about the physical characteristics of New Zealand's rivers. Individual river sections are mapped according to physical factors such as climate, source of flow for the river water, topography, and geology, and catchment land cover eg, forest, pasture or urban. Sections of river...
    Created 3 May 2018 • Updated 8 August 2019

  • Lake water quality, 2009–13

    Ministry for the Environment
    "The Lake Trophic Level Index (TLI) characterises the life supporting capacity of a lake based on nutrient enrichment. In general, the higher the TLI score, the poorer the water quality in the lake. Lakes with extremely poor quality are rarely suitable for recreation and provide poor quality habitat for aquatic species. Care should be taken when...
    Created 3 May 2018 • Updated 8 August 2019

  • Lake water quality state percentiles, by monitoring site, 2009-2014

    Ministry for the Environment
    When nutrients accumulate in lakes (referred to as ‘nutrient enrichment’) above certain levels, they can make the lakes murky and green with algae, and lower oxygen levels. Lakes with extremely poor water quality are rarely suitable for recreation and provide poor habitats for aquatic species. Percentile calculations for the following parameters are...
    Created 3 May 2018 • Updated 8 August 2019

  • New Zealand's greenhouse gas emissions (1990–2013)

    Ministry for the Environment
    Our greenhouse gas (GHG) emissions are small compared with those of other developed nations, but we have committed to being part of the global response to climate change. New Zealand's greenhouse gas inventory is an annual report on all of the country’s human-induced GHG emissions and removals of GHG emissions. The inventory is produced as part of our...
    Created 3 May 2018 • Updated 8 August 2019

  • Land Environments New Zealand (LENZ) - Level 4 Grid (2009)

    Ministry for the Environment
    Land Environments of New Zealand (LENZ) is a classification of fifteen climate, landform, and soil variables chosen for their relevance to biological distributions. Classification groups were derived by automatic classification using a multivariate procedure. Four levels of classification detail have been produced from this analysis, containing 20, 100,...
    Created 3 May 2018 • Updated 8 August 2019

  • Farm size - Area of large commercial agricultural activities, 2002, 2007 and 2012

    Ministry for the Environment
    Farm size describes the area of large commercial properties (registered for goods and services tax) that farm crops and/or livestock. It is important to measure the extent of these agricultural activities because their size influences the extent of their impacts on soil health and water quality. Column headings: area_ha = total area of farming activity...
    Created 3 May 2018 • Updated 8 August 2019

  • Nitrate–nitrogen, 2009–2013

    Ministry for the Environment
    "Small amounts of nitrogen are a natural component of healthy rivers. Nitrogen in rivers can vary due to differences in land use, climate, elevation, and geology. Nitrogen is transferred from land to water and is cycled through different forms, which can have different effects. Moderate concentrations of nitrate can cause weeds and algae to grow too fast....
    Created 3 May 2018 • Updated 8 August 2019

  • Annual maximum three-day rainfall totals (1950–2013

    Ministry for the Environment
    A three-day rainfall measurement covers a single sustained rain event or a series of shorter events over a three-day period. Such measurements help us understand and prepare for flooding or rain-induced slips that could cause damage. Further information can be found in: Tait, A, Macara, G, & Paul, V. (2014) Preparation of climate datasets for the 2015...
    Created 3 May 2018 • Updated 8 August 2019

  • Soil moisture PED annual average 1972-2014

    Ministry for the Environment
    Soil moisture is important for plant growth. A lack of moisture content over a growing season is a good indicator of drought, which can have social, environmental, and economic impacts. Increasing temperatures and changes in rainfall patterns are expected to increase the frequency and intensity of drought in many regions. Growing season soil moisture...
    Created 3 May 2018 • Updated 8 August 2019
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