Results from the intercalibration of optical low-light calibration sources 2011

Abstract. Following the 38th Annual Meeting on Atmospheric studies by Optical methods at Siuntio in Finland, an intercalibration workshop for optical low-light calibration sources was held in Sodankylä, Finland. The main purpose of this workshop was to provide a comparable scale for absolute measure...

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Bibliographic Details
Main Authors: Brändström, B. Urban E., Enell, Carl-Fredrik, Widell, Ola, Hansson, Thord, Whiter, Daniel, Mäkinen, Sanna, Mikhaylova, Daria, Axelsson, Katarina, Sigernes, Fred, Gulbrandsen, Njål, Schlatter, Nicola M., Gjendem, Amund Gjerde, Cai, L., Reistad, Jone Peter, Daae, Marianne, Demissie, Teferi Dejene, Andalsvik, Yngvild Linnea, Roberts, Owen, Poluyanov, Stepan Viktorovich, Chernouss, Sergey
Format: Article in Journal/Newspaper
Language:English
Published: Copernicus GmbH 2011
Subjects:
Online Access:http://hdl.handle.net/10852/74447
http://urn.nb.no/URN:NBN:no-77560
https://doi.org/10.5194/gid-1-91-2011
Description
Summary:Abstract. Following the 38th Annual Meeting on Atmospheric studies by Optical methods at Siuntio in Finland, an intercalibration workshop for optical low-light calibration sources was held in Sodankylä, Finland. The main purpose of this workshop was to provide a comparable scale for absolute measurements of aurora and airglow. All sources brought to the intercalibration workshop were compared to an international standard source (Fritz-Peak) using the Lindau Calibration Photometer built by Wilhelm Barke and Hans Lauche in 1984. The international standard source is on loan from Michael Gadsden, Aberdeen. The results were compared to several earlier intercalibration workshops. It was found that most sources were fairly stable over time with errors in the range of 5–20%. To further validate the results, two sources were also intercalibrated at UNIS, Longyearbyen, Svalbard. Preliminary analysis indicate good agreement with the intercalibration in Sodankylä.