Answer:
Air temperature and relative humidity=1.5m+1m (AAsc); 1.25 to 2.0m(wmo) ;2.0m.
Explanation:
soil temperature=10cm+-1.0cm(AASC);5cm,10cm,20cm,50cm,100cm(wmo)
solar radiation=hight should be consistant with the explosure standard(AASC).
sensor type=masurement hight or depth
