25 Jan '17, 11am

Does anyone know of a reliable source of information for UVC measurements at ground level? #Weath…

Does anyone know of a reliable source of information for UVC measurements at ground level? #Weath…

The UV Index (UVI) is a simple and informative index jointly developed by the World Health Organisation (WHO), United Nations Environment Programme (UNEP), and the World Meteorological Organization (WMO) to measure the level of UV radiation exposure. The UVI describes the level of solar UV radiation at the Earth’s surface and is dependent on both UVA and UVB radiation. UV radiation levels and therefore the values of the index vary throughout the day. The maximum UV radiation level typically occurs during the four-hour period between 11am and 3pm.

Full article: http://www.nea.gov.sg/training-knowledge/weather-climate/...

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Historical records may underestimate sea level rise

Historical records may underestimate sea level ...

climate.nasa.gov 25 Jan '17, 6pm

A new NASA and university study using NASA satellite data finds that tide gauges — the longest and highest-quality records...