UV and ozone

CFCs have damaged the ozone layer and led to higher UV levels and increased health risks. NIWA works to understand the causes and effects of ozone depletion, to inform the public of the risk.

All-sky - Lauder

Today's UV index

Measured in Auckland (Leigh Marine Observatory), Paraparaumu, Christchurch, Lauder, Invercargill.

Atmosphere

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    Ozone

    Research Project
    There is a marked seasonal cycle in surface ozone (O3), with a maximum in winter and minimum in summer. There can also be significant variability from day to day caused by synoptic scale meteorological variations.
    UV and ozone

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    Chemistry-climate modelling

    Research Project
    This research project focusses on modelling atmospheric chemistry and climate from the surface to the top of the stratosphere, using sophisticated chemistry-climate models.
    Antarctica
    Atmosphere
    Greenhouse and trace gases

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    UV measurement - Lauder

    UVI at Lauder

    This information is provided as part of our UV Ozone service, which also includes ozone and UV maps for New Zealand, yesterday’s forecast and measured UV, UV Atlas software, and more. NIWA has also developed an instrument to measure UV levels and display the UV Index on an easy-to-read dial. This is intended for use at swimming pools, outdoor sports events, and so on. The measured UV Index can be affected by cloud cover at Lauder.
    Atmosphere
    UV and ozone

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    UV Science Workshops

    Find out more about our national UV workshops
    UV and ozone