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What Causes Surface Wind?

“Wind is the movement of air molecules in response to temperature and pressure differences in the atmosphere.” To properly select and site wind instruments the user must first understand the nature of the wind and its component parts that are the objective of the...

What Causes Local Surface Wind?

Surface winds are often more a function of surface features or local thermal changes than the large area differences in barometric pressure that drive synoptic winds. Temperature differences between water and land and between mountain tops and valleys can cause the...