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![Figure 6 ship4459.jpg Figure 6](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_ship4459.jpg?itok=UTEfDjMU)
Description
Figure 6. Pyranometer, a sensor used to measure variations in solar radiation.It is used with a recording device, the solarigraph. The principle of operationof the pyranometer is that of the thermophile of the Dutch Willem Moll. Thisprinciple was adapted by Dr. Ladislaw Gorczynski of the Meteorological Institute of Varsovia in 1924. The instrument shown was probably made in the 1940's. (Image credit: Oceanographic Museum of Monaco | Y. Berard)