907 datasets found

  • Stream bed sedimentation - predicted cover in all river reaches nationwide

    Ministry for the Environment
    Fine sediment is the collective term for inorganic particles smaller than 2mm that are deposited on the beds of rivers and streams. Urban development, agriculture, and plantation forestry around waterways can increase the amount of sediment entering river systems. Sediment can clog the spaces between pebbles used by aquatic insects and fish, and degrade...
    Created 3 May 2018 • Updated 8 August 2019

  • Number of frost days for selected sites (1975–2013)

    Ministry for the Environment
    The number of frost and hot days we experience each year can change in response to many climate factors, such as the warming pattern induced by El Niño. These numbers indicate the variations in our climate and are an important consideration in agriculture. They also affect our behaviour, for example, what we do to keep safe on icy roads or whether to use...
    Created 3 May 2018 • Updated 8 August 2019

  • Annual rainfall, 2000

    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 2000 as part of the data series for...
    Created 3 May 2018 • Updated 8 August 2019

  • River Environment Classification Watershed 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

  • River Environment Classification Watershed West Coast (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

  • Distribution of stoats 2002–2014

    Ministry for the Environment
    "The pressure from animal and plant pests is one of the biggest threats to biodiversity in the land environment. Pest predators (such as stoats and possums) eat eggs, birds, lizards, insects, and snails. Other animal pests (such as deer and goats) damage and kill trees and other plants and can compete with indigenous animals for the plants’ fruit and...
    Created 3 May 2018 • Updated 8 August 2019

  • Days with wind gusts greater than gale force (1975–13)

    Ministry for the Environment
    Strong wind events can cause significant damage, for example, to trees and buildings. They can occur with frontal weather systems and around strong convection events, such as thunderstorms. Global climate change may change the frequency of damaging wind events in almost all areas in New Zealand in winter and decrease the frequency in summer. Monitoring...
    Created 3 May 2018 • Updated 8 August 2019

  • River Environment Classification Marlborough (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

  • Sunshine hours: annual average 1972-2013

    Ministry for the Environment
    "Sunshine is important for our health and recreation, and for the environment. It is also important for our agriculture-based economy, for example, for plant growth. This dataset shows average annual sunshine hours across New Zealand for years 1972 to 2013. The National Institute of Water and Atmospheric Research (NIWA) mapped mean annual sunshine hours...
    Created 3 May 2018 • Updated 8 August 2019

  • Mean, maximum and minimum coastal sea surface temperature (1953–2014)

    Ministry for the Environment
    Coastal sea-surface temperature is influenced by solar heating and cooling, latitude, and local geography. It is hard for some marine species to survive when the sea temperature changes. This can affect marine ecosystems and processes. It can also affect fish-farming industries based in our coastal areas. This dataset relates to the "Coastal sea-surface...
    Created 3 May 2018 • Updated 8 August 2019

  • Emissions from burning wood or coal for home heating 2006 and 2013

    Ministry for the Environment
    In 2013, 37 percent of homes burned wood and 4 percent burned coal for heating. Burning wood or coal for home heating emits a range of air pollutants. It is the main human-made source of particulate matter and a significant contributor of carbon monoxide. Exposure to these pollutants can damage health, with effects ranging from respiratory irritation to...
    Created 3 May 2018 • Updated 8 August 2019

  • Predicted streambed sedimentation, 1990–2011

    Ministry for the Environment
    "Fine sediment is the collective term for inorganic particles deposited on the streambed less than 2mm in size. Urban development and agriculture and forestry around waterways can increase the amount of sediment entering river systems. Sedimentation can clog space between pebbles that are used by aquatic insects and fish, alter food sources, and remove...
    Created 3 May 2018 • Updated 8 August 2019

  • Marine reserves (2014)

    Ministry for the Environment
    New Zealand’s four million km2 marine environment is diverse, with a range of coastal habitats and offshore seabed environments. We also have many marine species found only in New Zealand. Marine protected areas conserve or manage some of these unique habitats and species, while a range of other tools also provide marine protection. We report on the area...
    Created 3 May 2018 • Updated 8 August 2019

  • Time series for two coastal sea surface temperature monitoring stations (1953–2012)

    Ministry for the Environment
    Coastal sea-surface temperature is influenced by solar heating and cooling, latitude, and local geography. It is hard for some marine species to survive when the sea temperature changes. This can affect marine ecosystems and processes. It can also affect fish-farming industries based in our coastal areas. This dataset relates to the "Coastal sea-surface...
    Created 3 May 2018 • Updated 8 August 2019

  • Indigenous vegetation cover remaining and protection 2001–2012

    Ministry for the Environment
    "New Zealand’s land area has been divided into 500 land environments, each defined by their unique climate, topography, and soils. The extent to which indigenous vegetation is represented in these different land environments, and how that vegetation is formally protected, is described by ‘threatened environment’ categories. These categories can be...
    Created 3 May 2018 • Updated 8 August 2019

  • Observed streambed sedimentation, 1990–2011

    Ministry for the Environment
    "Fine sediment is the collective term for inorganic particles deposited on the streambed less than 2mm in size. Urban development and agriculture and forestry around waterways can increase the amount of sediment entering river systems. Sedimentation can clog space between pebbles that are used by aquatic insects and fish, alter food sources, and remove...
    Created 3 May 2018 • Updated 8 August 2019

  • River Environment Classification Watershed Marlborough (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

  • Carbon monoxide concentrations and exceedances 2005–2013

    Ministry for the Environment
    Carbon monoxide (CO) is a gas formed by incomplete combustion of fuels, in particular from road motor vehicles and burning wood and coal for home heating. It also occurs naturally, for example, from wild fires. CO can affect human health by interfering with the blood’s ability to carry oxygen and by aggravating heart conditions. Road motor vehicles are...
    Created 3 May 2018 • Updated 8 August 2019

  • Macroinvertebrate Community Index percentiles, by monitoring site, 2009-13

    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

  • Livestock numbers, 2002–14

    Ministry for the Environment
    Livestock numbers reflect changes in the number of farmed beef and dairy cattle, deer, and sheep across New Zealand. Livestock farming is a widespread land use in this country. It is important to monitor this use because it can affect the indigenous biodiversity, soil health, and water quality. Column headings: numbers = numbers of animals This dataset...
    Created 3 May 2018 • Updated 8 August 2019
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