907 datasets found

  • River Environment Classification Auckland (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

  • Land Environments New Zealand (LENZ) - Level 1 Grid (2010)

    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

  • Road motor vehicle emissions

    Ministry for the Environment
    Road motor vehicles emit a range of air pollutants from their exhausts, and from brake and tyre wear. They are the main human-made source of nitrogen oxides and carbon monoxide emissions. Exposure to these pollutants can damage health, with effects ranging from respiratory irritation to cancer. Road motor vehicles range from passenger vehicles to heavy...
    Created 3 May 2018 • Updated 8 August 2019

  • River water quality, raw data by site, 1975-2013

    Ministry for the Environment
    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,...
    Created 3 May 2018 • Updated 8 August 2019

  • Annual average Interdecadal Pacific Oscillation Index (1871–2013)

    Ministry for the Environment
    The Interdecadal Pacific Oscillation (IPO) describes the long-term oscillation of the Pacific Ocean. The Pacific climate oscillation causes climate fluctuations that can influence New Zealand’s climate. For example, it can affect the strength and frequency of El Niño and La Niña events. In New Zealand, the positive phase of the IPO is linked to stronger...
    Created 3 May 2018 • Updated 8 August 2019

  • National PM10 concentrations 2006–13

    Ministry for the Environment
    Particulate matter 10 micrometres or less in diameter (PM10) in the air comprises solid particles and liquid droplets from both natural and human-made sources. PM10 can be emitted from the combustion of fuels, such as wood and coal (eg from home heating and industry), and petrol and diesel (from vehicles). Natural sources of PM10 include sea salt, dust,...
    Created 3 May 2018 • Updated 8 August 2019

  • River Environment Classification Watershed Wellington (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

  • Influenza hospital discharges (2000–13)

    Ministry for the Environment
    Influenza is a potentially life-threatening virus that spreads quickly from person to person. It is a significant public health issue in this country, with 10–20 percent of New Zealanders infected every year. While influenza outbreaks can occur all year round, rates peak in winter and spring. This is because the virus can survive longer outside the body...
    Created 3 May 2018 • Updated 8 August 2019

  • Current wetland extent, 2013

    Ministry for the Environment
    "Wetlands support unique biodiversity and provide important services. They clean water of nutrients and sediment, help dampen floods, provide habitat, and act as carbon sinks. They are also valued for their spiritual and cultural significance and as important sources of food and materials, such as flax. Draining them for agricultural and urban development...
    Created 3 May 2018 • Updated 8 August 2019

  • River Environment Classification Northland (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 Otago (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

  • Annual rainfall, 2013

    Ministry for the Environment
    "Annual rainfall is the total accumulated rain over one year. Rain is vital for life, including plant growth, drinking water, river ecosystem health, and sanitation. Floods and droughts affect our environment, economy, and recreational opportunities. This dataset shows annual average rainfall across New Zealand for 2013 as part of the data series for...
    Created 3 May 2018 • Updated 8 August 2019

  • River water quality percentiles, by monitoring site, 2009-2013

    Ministry for the Environment
    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,...
    Created 3 May 2018 • Updated 8 August 2019

  • Lake water quality trends, 2004-2013

    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. Trends in the following parameters are provided: * Trophic...
    Created 3 May 2018 • Updated 8 August 2019

  • Annual growing degree days

    Ministry for the Environment
    Growing degree days (GDD) is the measure of how much warmth is available for plant and insect growth during a growing season. GDD information helps horticulturists and farmers predict plant growth and stock development. The GDD value changes in response to climate variations, such as El Niño. Long-term changes in GDD are a measure of changing climate...
    Created 3 May 2018 • Updated 8 August 2019

  • River Environment Classification Watershed Auckland (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

  • Annual mean sea level (relative to land) (1900–2013)

    Ministry for the Environment
    Sea-level rise is a consequence of climate change. Increases in global temperature cause ocean waters to expand, and glaciers and ice sheets to melt into oceans. Sea-level rise affects estuaries, coastal wetlands, and intertidal and sub-tidal habitats and species. The increased likelihood of coastal erosion from sea-level rise presents a risk for seaside...
    Created 3 May 2018 • Updated 8 August 2019

  • River Environment Classification Manawatu (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 water quality trends by monitoring site, 1989-2013

    Ministry for the Environment
    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,...
    Created 3 May 2018 • Updated 8 August 2019

  • Fundamental Soil Layers New Zealand Soil Classification

    Ministry for the Environment
    "This data describes the location of the different types of soil in New Zealand using the New Zealand Soil Classification. This data set relates to the "Soils" measure on the Environmental Indicators, Te taiao Aotearoa website."
    Created 3 May 2018 • Updated 8 August 2019
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