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What are ppm and ppb?
PPM and PPB are units used in atmospheric chemistry to describe the concentration of gases. -
Real-time UV Index displays
NIWA has developed a real time UV display in consultation with the Cancer Society and Sunsmart. The first prototype is currently installed at the new Molyneux Aquatic centre in Alexandra. -
How can carbon emissions be weighed?
The mass of carbon emissions can easily be calculated. -
Atmospheric ozone, ultraviolet radiation, and stratospheric change
Research ProjectCFCs have damaged the ozone layer and led to higher UV levels and increased health risks. Our role is to understand the causes and effects of ozone depletion, to inform the public of the risk. -
Trace gas datasets
ServiceNIWA makes a range of trace gas data freely available on our FTP site. -
UVI forecast for Specific Sites
Check out UV index forecasts for locations in New Zealand (including ski fields), Australia, the Pacific and Antarctica. -
What is the greenhouse effect?
Education ResourceThe greenhouse effect is a warming of the earth's surface and lower atmosphere caused by substances which let the sun's energy through to the ground but impede the passage of energy from the earth back into space. -
Publicly available data and publications
FacilityNIWA makes available and regularly updates results from several greenhouse gas measurement projects.