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dc.contributor.authorPayne, Richard E.  Concept link
dc.date.accessioned2006-03-31T20:36:30Z
dc.date.available2006-03-31T20:36:30Z
dc.date.issued2004-12
dc.identifier.urihttps://hdl.handle.net/1912/787
dc.description.abstractThe design and testing of an all-thermistor (no thermopile) pyrgeometer (LWT) is descrbed. After calibration by comparison with a Kipp & Zonen CG4, 9.2 months of data show mean differences of order 1-2 W m-2 with standard deviations of order 7-8 W m-2. Approximately half of the mean difference and the standard deviation derived from 40 occasions when the LWT readings were anomalously high for periods of 2-l4 hours, principally at night. No reason has been found for the anomalous behavior. During the 9.2 months, of data, there were also 11 periods of a few hours each when the Eppley PIR indicated noticeably higher flux values than did the Kipp & Zonen CG4. The conclusion reached is that contemporary thermistors allow temperature measurements of suffcient accuracy, and the thermopile can be eliminated from pyrgeometers. The differences seen between the Kipp & Zonen and the Epply raise doubts about their absolute accuracies on time scales of hours, although their long-term averages are quite comparable.en
dc.description.sponsorshipFunding was provided by the National Science Foundation under Contract Number OCE98-l8470.en
dc.format.extent2195550 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen
dc.publisherWoods Hole Oceanographic Institutionen
dc.relation.ispartofseriesWHOI Technical Reportsen
dc.relation.ispartofseriesWHOI-2004-07en
dc.relation.ispartofseriesUpper Ocean Processes Groupen
dc.relation.ispartofseriesUOP-2004-02en
dc.subjectLongwave sensoren
dc.subjectPyrgeometeren
dc.subjectThermistoren
dc.titleAn all-thermistor pyrgeometeren
dc.typeTechnical Reporten
dc.identifier.doi10.1575/1912/787


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