Division II.2 Methods to measure the actual meteorological situation in or close to the plot
United Kingdom
By installation of a meteorological station in an open area close to the plot or the installation of a tower in the stand near the plot, the weather situation shall be monitored continuously. The technical equipment, sensors and their placement are to be in accordance with the international meteorological standards. The following variables are to be obtained.
| Mandatory | Optional |
|---|---|
| Precipitation | UVB radiation |
| Air temperature | Soil temperatures |
| Air humidity | Soil moisture |
| Wind speed | (matric potential, water content) |
| Wind direction | Stand precipitation (quantity of through fall and stem flow) |
| Solar radiation |