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Ozone profiles above Kiruna from two ground-based radiometers

Ryan, Niall J.; Walker, Kaley A.; Raffalski, Uwe; Kivi, Rigel; Gross, Jochen; Manney, Gloria L.

Abstract:
This paper presents new atmospheric ozone concentration profiles retrieved from measurements made with two ground-based millimetre-wave radiometers in Kiruna, Sweden. The instruments are the Kiruna Microwave Radiometer (KIMRA) and the Millimeter wave Radiometer 2 (MIRA 2). The ozone concentration profiles are retrieved using an optimal estimation inversion technique, and they cover an altitude range of ~16–54 km, with an altitude resolution of, at best, 8 km. The KIMRA and MIRA 2 measurements are compared to each other, to measurements from balloon-borne ozonesonde measurements at Sodankylä, Finland, and to measurements made by the Microwave Limb Sounder (MLS) aboard the Aura satellite. KIMRA has a correlation of 0.82, but shows a low bias, with respect to the ozonesonde data, and MIRA 2 shows a smaller magnitude low bias and a 0.98 correlation coefficient. Both radiometers are in general agreement with each other and with MLS data, showing high correlation coefficients, but there are differences between measurements that are not explained by random errors. An oscillatory bias with a peak of approximately ±1 ppmv is identified in the KIMRA ozone profiles over an altitude range of ~18–35 km, and is believed to be due to baseline wave features that are present in the spectra. ... mehr

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Volltext §
DOI: 10.5445/IR/1000059784
Originalveröffentlichung
DOI: 10.5194/amt-9-4503-2016
Scopus
Zitationen: 3
Web of Science
Zitationen: 3
Coverbild
Zugehörige Institution(en) am KIT Fakultät für Physik (PHYSIK)
Institut für Meteorologie und Klimaforschung - Atmosphärische Spurenstoffe und Fernerkundung (IMK-ASF)
Publikationstyp Zeitschriftenaufsatz
Jahr 2016
Sprache Englisch
Identifikator ISSN: 1867-1381, 1867-8548
urn:nbn:de:swb:90-597847
KITopen-ID: 1000059784
HGF-Programm 12.03.01 (POF III, LK 01)
Erschienen in Atmospheric measurement techniques
Band 9
Heft 9
Seiten 4503-4519
Nachgewiesen in Scopus
Web of Science
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