NIWA - Metadata Catalogue
Topic
climatologyMeteorologyAtmosphere
40 record(s)
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Database of direct measurements Balloon-borne ozonesonde flights, microwave radiometer measurements, and ozone lidar measurements, made from Lauder (45.04oS, 169.68oE), New Zealand. Archives of the measurements are maintained at NIWA, Lauder, and in various international data archives. A combined data set of satellite-based vertical ozone profile measurements is maintained at NIWA using measurements from a variety of satellite-based instruments including SAGE I, SAGE II, SAGE III, ILAS I, ILAS II, HALOE, POAM II, POAM III, GOMOS, MIPAS, SCIAMACHY, OSIRIS.
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NIWA's webpage tool for delivering updated climate products for New Zealand. This subscription-based service can be configured to generate a range of complex climate maps from our databases.
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Meta information for climate stations
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NIWA maintains a retrieval system and a large archive for New Zealand satellite images. These satellite data are for sea surface temperature, chlorophyll analysis and satellite cloud imagery.
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Graphs showing UVI forecasts specific sites in New Zealand and the South Pacific region. When the UVI is low (less than 3), no protection is required and short exposures to sunlight will be beneficial for vitamin D production. At all other times some protection to avoid sunburn is recommended. The "UV Alert Period" is defined as the period when the clear sky UVI forecast is greater than 3. When the UVI is 3, damage to fair skin can occur in less than 1 hour. When the UVI is 12, damage to fair skin can occur in less than 15 minutes. For darker Polynesian skin types the safe exposure periods can be doubled.
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Graphs showing predicted and measured UV Index at Lauder are updated at 15 minute intervals. Unlike the UVI predictions seen on TV, these include the effects of clouds. The most recent UVI is displayed, along with a corresponding behavioural message. These messages correspond to five intensity ranges, as recommended by Sunsmart and the Cancer Society of New Zealand. We plan to make similar data from other sites available in this way at a later date but currently data are downloaded from most instruments elsewhere only once per day.
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The all-sky image shows a hemispheric view of the sky at Lauder. The band extending from the center of the image to the edge shields the camera from the direct sun which would otherwise cause blooming on the image and obscure the details of the clouds. These images record the cloud cover at Lauder for use in the atmospheric radiation research. Post-processing of the images is used to determine cloud cover, area to edge ratios, and so on. The images are updated every 10 minutes and an archive image is available for each of the last 24 hours.
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Broadband erythemal UV irradiances measured at 10 minute intervals at 5 sites in New Zealand. Short wave direct, diffuse, and global radiation at Lauder. Network of approximately 70 national climate database radiation sites in the New Zealand region with broadband short wave radiation, and four higher quality sites with diffuse, direct, and global irradiances.
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Graphs showing predicted and measured UV Index at Leigh, Paraparaumu, Christchurch, Lauder, Invercargill and Rarotonga are updated daily.
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Time series of air quality measurements collected from campaigns (moving observations).