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| Titel |
Fiber optic distributed temperature sensing for the determination of air temperature |
| VerfasserIn |
S. A. P. de Jong, J. D. Slingerland, N. C. van de Giesen |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1867-1381
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Measurement Techniques ; 8, no. 1 ; Nr. 8, no. 1 (2015-01-15), S.335-339 |
| Datensatznummer |
250116055
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| Publikation (Nr.) |
 copernicus.org/amt-8-335-2015.pdf |
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| Zusammenfassung |
| This paper describes a method to correct for the effect of solar radiation in
atmospheric distributed temperature sensing (DTS) applications. By using two
cables with different diameters, one can determine what temperature a zero
diameter cable would have. Such a virtual cable would not be affected by solar
heating and would take on the temperature of the surrounding air. With two
unshielded cable pairs, one black pair and one white pair, good results were
obtained given the general consensus that shielding is needed to avoid
radiation errors (WMO, 2010). The correlations between standard air
temperature measurements and air temperatures derived from both cables of
colors had a high correlation coefficient (r2=0.99) and a
RMSE of 0.38 °C, compared to a RMSE of 2.40 °C for a 3.0 mm
uncorrected black cable. A thin white cable measured temperatures that were
close to air temperature measured with a nearby shielded thermometer (RMSE of
0.61 °C). The temperatures were measured along horizontal cables with
an eye to temperature measurements in urban areas, but the same method can be
applied to any atmospheric DTS measurements, and for profile measurements
along towers or with balloons and quadcopters. |
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