Author: Kirby J. HansonPublisher:
ISBN:
Category : Pyranometer
Languages : en
Pages : 40
Book Description
Radiation sensors on two ships of the U.S.S.R., one of Mexico, and one of the U.S. were compared during the GATE International Sea Trials (GIST), 2-10 August 1973, near 20N, 60W. Pyranometer comparison showed that two instruments disagreed by 23%, but the remaining four pyranometers disagreed by less than 6%. The data also suggest the Yanishevsky and Eppley pyranometers have dissimilar cosine response characteristics which causes them to disagree by 4 mW cm−2 or less at low sun elevation angels. Pyheliometers on the fours ships were in agreement to within 1.7%. Two pyrgeometers (an Anström type and Eppley type) differed by only 1.3%. An analysis of the GIST data suggests that, if conditions during the main field experiment are the same as in GIST, the three-day comparison period should be sufficient to reduce random errors in pyranometer measurements to 0.8%. This will allow determination of systematic pyranometer errors to well within the 5% level specified by ISMG.
Author: Atlantic Oceanographic and Meteorological Laboratories
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Author: Environmental Science Information Center. Library and Information Services Division
Author: Environmental Science Information Center. Library and Information Services Division
Author: 
Author: Environmental Science Information Center. Library and Information Services Division
Author: 