Fig. 1
a Internal view of the main sensor enclosure. (1) thermal camera, (2) VNIR hyperspectral line scanner with cooling fan, (3) shutter motor and mechanism, (4) 24 VDC to 12 VDC converter, and (5) shutter controller with temperature sensor. b External view of the main sensor enclosure on the pan tilt unit, tilted downward at the canopy. The white cover is the radiation shield with ventilation. c Contextual view of the THEMS sensor enclosure (number ‘1’ insert). Other inserted numbers are: 2) the command PC ensclosure, and 3) the all sky camera and irradiance sensor location