Zur Seitennavigation oder mit Tastenkombination für den
accesskey
-Taste und Taste 1
Zum Seiteninhalt oder mit Tastenkombination für den
accesskey
und Taste 2
S
tartseite
A
nmelden
Sommer 2024
Hilfe
Sitemap
Impressum
Datenschutz
node1
Studentisches Leben
Veranstaltungen
Einrichtungen
Räume und Gebäude
Personen
Forschung
Startseite
Publikation: Zeitschriftenartikel
Radiation error of air temperature measurements: minimization of the error by a new reference system and comparison with conventional measurement systems, diurnal and annual variation of their errors as a function of radiation and wind speed
Grunddaten
Abstract
Autoren
Einrichtung
Grunddaten
Titel
Radiation error of air temperature measurements: minimization of the error by a new reference system and comparison with conventional measurement systems, diurnal and annual variation of their errors as a function of radiation and wind speed
Erscheinungsjahr
2023
Seiten (von – bis)
65 – 78
Band
90
Heft-Nr.
1
Jahr
2023
Publikationsform
Elektronische Ressource
Publikationsart
Zeitschriftenartikel
Sprache
Englisch
DOI
10.1515/teme-2022-0051
Letzte Änderung
18.02.2024 08:40:27
Bearbeitungsstatus
durch UB Rostock abschließend validiert
Dauerhafte URL
http://purl.uni-rostock.de/fodb/pub/71095
Links zu Katalogen
Abstract
The measurement of air temperature is associated with inaccuracies resulting from radiation errors. Liquid thermometers and automatic sensors are therefore housed in screens. Mechanical ventilation also helps to increase the accuracy of readings. Nonetheless, temperature measurements are not completely accurate. This spurred the development of a measuring system that features improved radiation protection and a modified mechanical ventilation system through a new type of screen. Parallel measurements with this new measurement system and two conventional screens of multiple plastic cones were taken at a location in north-east Germany with a temperate climate. Of the two traditional screens, one was ventilated and the other not. Based on previous findings concerning the seasonality of radiation errors, our analysis of their dependency on global radiation and wind speed was focused on the months of May to August, when global radiation is at its strongest. It was found that the not insignificant differences in T\Delta T display a characteristic diurnal variation. With the new measurement system, in comparison with the two conventional measurung systems, the average air temperature of the four surveyed months during daylight hours was 0.43K and 0.58K lower. The differences in T\Delta T are greatest not in the middle of the day but when the sun is low in the sky, as radiation is then reflected into the screen. The findings contribute to the understanding of the temporal variability of radiation errors in modern weather stations in dependence on global radiation and wind speed. The technical innovations presented here allow radiation errors to be largely avoided.
Autoren
Miegel, Konrad
Fröhlich, Thomas
Pätz, Joachim
Einrichtung
AUF/Hydrologie und Angewandte Meteorologie