3TIER by Vaisala
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What affects solar radiation at a given site?

The intensity of the solar radiation at a given location depends on your latitude, terrain, season, time of day, and atmospheric conditions. For example, clouds, dust, and water vapor all affect the amount of radiation that reaches the surface at any given location.

The Vaisala solar datasets irradiance estimates do take into account dust, pollution, and other aerosols but not for local shades and shadows, such as those caused by trees or buildings. As a result, you need to take local conditions into account when interpreting estimates displayed by the Solar Prospecting Tools or the Solar Time Series Tools.

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