Solar and terrestrial radiation measurements at 35m tower

Last modified by htlaakso@helsinki_fi on 2024/02/07 06:31

UVA, UVB, Global and Sunshine sensors installed to a boom next to the top handrail of the 35m tower 14.2.2017. Approximate height from the ground is 37m. Analog signal logging with a 16 channel serial transmitter Nokeval RMD680 connected to a RaspberryPi, hostname towerpi35m.

All channells set differential, 1s data logging interval, input lowpass filtering T=1s (IIR).

Data transferred to: \\timo\smear\tower35m\tow35m_nokeval

Nokeval 0 Channel listing:

channel, range, measurement, sensor details

  1. pt100 3-w, air temp, Rotronic MP102H external pt100, 1/5DIN
  2. 2.5V, PAR-total, Delta-T BF-5 sunshine sensor (1mV <=> 1umol/sm^2)
  3. 2.5V, PAR-diffuse, BF-5
  4. 400ohm, /SUN, BF-5 dark = 100ohm, sunshine =~0ohm
  5. 55mV, PAR, Li-190SL Q52876, 737ohm cal.resistor, 5mV per 1000umol/sm^2. Unused sensor, cal. date 21.11.1014
  6. 100mV, global radiation, Middleton solar SK08 pyranometer (s/n:3032 21.5uV/Wm^2) (last cal value: 48.3 W/m2/mV/PKolari)
  7. 1V, UV-A,Solar light co UV biometer detector
  8. 1V, UV-A temperature signal, -"-
  9. 1V, UV-B, Solar light...
  10. 1V, UV-B temp. signal, -"-
  11. 10V, dewpoint temperature, Edgetech 200M chilled mirror dewpoint meter (* 20 - 50)degC
  12. 10V, air temperature, Edgetech... (* 20 - 50)degC
  13. 400ohm, flow status relay output, Edgtech... OK = 100ohm, problem = ~0ohm
  14. free
  15. 55mV, PAR, Li-190 Q27458, 725ohm cal.resistor, old PAR sensor from radiation tower, being logged to sun data, nokeval channel16
  16. pt100, box temperature