Silicon-cell Photodiode Pyranometers
Pyranometer sensors measure
the shortwave radiation reaching
the Earth's surface, measured in Joules m-2 s-1 or Watts m-2.
JOURNAL ARTICLES
Payero, J. O., S. Irmak. 2006.
Variable upper and lower crop water stress index baselines for corn and soybean.
Irrigation Science, 25 (1):21-32.
$169
Model SP-110:
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