chosen very carefully in order to be representative. For
climatological purposes, wind should be observed at flat
and openly exposed sites (distance to the next obstacle
should betimes the height of the obstacle not on top
of the buildings which cause turbulences).
As standard height above ground, 10 m is generally
recommended for wind measurements in climatology, but for
agrometeorological purposes, measurements are very often
made at m above ground.
Detailed microclimatic investigations on the windfield near
the ground and its modification by the vegetation will
require a purposeful choice of specific observation sites
and measurement heights.
2.5.2 Instruments
2.5.21 Methods of measurements
Basically, the following three physical principles are used
to measure wind.
- dynamic energy methods (dynamic and static pressure methods)
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