An all-thermistor pyrgeometer
Payne, Richard E.
MetadataShow full item record
The 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.
Suggested CitationTechnical Report: Payne, Richard E., "An all-thermistor pyrgeometer", 2004-12, DOI:10.1575/1912/787, https://hdl.handle.net/1912/787
Showing items related by title, author, creator and subject.
Thermistor data at 10 cm intervals in air, ice, water from autonomous buoys from ARSV Laurence M. Gould LMG0106 in the Southern Ocean, August to November, 2001 (SOGLOBEC project) Costa, Daniel P.; Fritsen, Chris H. (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: email@example.com, 2020-01-22)Thermistor data at 10 cm intervals in air, ice, water from autonomous buoys from ARSV Laurence M. Gould LMG0106 in the Southern Ocean, August to November, 2001 for the Southern Ocean GLOBEC project. For a complete list ...
Temperature from a thermistor chain deployed along a 30m depth contour at Mission Beach, CA in June of 2016 Franks, Peter; Lucas, Andrew J (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: firstname.lastname@example.org, 2020-01-02)Temperature from a thermistor chain deployed along a 30m depth contour at Mission Beach, CA in June of 2016. For a complete list of measurements, refer to the full dataset description in the supplemental file ...
Drifting vertical current meter, moored aanderaa thermistor chain, and XBT data : Jasin 1978 Atlantis-II cruise (102) Pennington, Nancy J.; Weller, Robert A. (Woods Hole Oceanographic Institution, 1981-10)The report presents summaries of three data sets taken at and in the vicinity of the oceanographic moorings deployed in the 1978 Joint Air-Sea Inte raction Project (JASIN). The data sets are: (1) the temperature, pressure ...