Meteorological data during campaign
Meteorological variables including air temperature (Tair), photosynthetic active radiation, wind speed, and relative humidity were recorded at nearby weather stations during the measurement campaign (Supporting information S4, Supporting information S5). Air temperature and wind speed at 1.3 m height was recorded 200 m away from the plot in a clearing using a permanently mounted weather station (WeatherMate 3000, Environdata, Warwick, QLD, Australia). In addition, a research grade weather station located on the jib of a 47m height canopy access crane recorded air temperature and relative humidity (HMP60, Vaisalla, Vantaa, Uusimaa, Finland), wind speed (YOUNG Model 05103 Wind Monitor, R.M.Young, Traverse City, MI, USA), incoming photosynthetic active radiation (SQ-521 full-spectrum quantum sensor, Apogee, Logan, UT, USA) and precipitation with a tipping bucket rain gauge (TB7, HyQuest Solutions, Warwick Farm, NSW, Australia) with data recorded every one min via a networked datalogger (CR310, Campbell Scientific, Logan, UT, USA). Gap filling of wind speed data from the clearing was carried out by calibration of extant data against crane meteorological station. We found multiplying wind speed measured at the top of the canopy crane by a factor of 0.6 was a better predictor of wind speed in the clearing than using a logarithmic wind profile.