Division II.4 Measurement period

The measuring will be made 4-weekly, weekly or at a time interval between the two depending mainly on the general weather conditions at the specific plot.

When it is necessary to use different measuring periods during the year (e. g. weekly in summer and monthly in winter), two separate monitoring periods shall be identified and the results shall be reported separately. Within one monitoring period the length of the measuring period shall be constant. The same measuring period shall be used for the monitoring under the forest canopy and the open area monitoring.