Form 5a - ICP Forests

Instrument code
The following codes shall be used for the samplers and recording method of data:
Samplers and recording method of data
Code
Manual reading and recording on paper 10
Mechanical recording (manual reading and recording on paper) 20
Direct paper recording 30
Digital recording (in stand alone situation) 40
Digital recording (integrated datalogger) 50
Details on the equipment shall be stated in the Data Accompanying Report.
Scanning interval in seconds (automatic instruments only).
The interval between two consecutive data storage moments shall be stated in minutes.
(64) Variables to be assessed in the meteorological monitoring
(Chapter 7)
Precipitation and throughfall
The precipitation will be stated as the daily sum in mm.
Temperature (air and soil)
The temperature will be stated in o C. The daily mean, daily minimum and daily
maximum are to be submitted.
Relative Humidity
The relative humidity will be stated as the daily mean, the minimum and the maximum
value reached per day.
Wind speed
The wind speed will be stated as the daily mean and the maximum value reached per
day.
Wind direction
The wind direction will be stated as the prevailing wind per day. The windrose will be
split into 12 sections of 30 o starting from 15 o onwards. The most frequent wind
direction is reported by its middle value e.g.: 30 o = the sector 15 o -45 o , 60 o for the
sector 45 o -75 o , 90 o for the sector 75 o -105 o , etc. , 0 ° = the sector 345° - 15°
Solar radiation and UV b radiation
The solar radiation and the UV b radiation will be stated as the daily mean value.
Stemflow
The stemflow will be calculated to mm precipitation and will be stated as the daily sum.
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