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An intercomparison campaign of ozone and temperature measurements in the Arctic (NAOMI-98, Ny-Ålesund/Spitsbergen)

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Neuber, R. , Beyerle, G. , Wahl, P. , Dahl, A. , Gross, M. , McGee, T. , Klein, U. , Steinbrecht, W. and von der Gathen, P. (2001): An intercomparison campaign of ozone and temperature measurements in the Arctic (NAOMI-98, Ny-Ålesund/Spitsbergen) , Environmental research in the Arctic 2000 : proceedings of the Second International Symposium on Environmental Research in the Arctic and Fifth Ny-Ålesund Scientific Seminar ; 23-25 February, NIPR, Tokyo / ed. by Okitsugu Watanabe... (Memoirs of National, pp. 65-70 .
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Abstract: The Ny-Ålesund Ozone Measurements Intercomparison (NAOMI) campaignfor measurements of stratospheric ozone and temperature was conducted at thePrimary Station of the NDSC in Ny-Ålesund/Spitsbergen during Jan.-Feb. 1998.Local instrumentation (ozone and aerosol lidar, microwave radiometer RAM,ECC-type ozone sondes) was complemented with the NDSC mobile ozone lidar fromNASA/GSFC. The aim was the validation of stratospheric ozone and temperatureprofiles according to NDSC guidelines. The blind intercomparison of ozoneprofiles revealed good agreement (<5%) up to 31 km. At higher altitudes thedifferent altitude ranges and resolutions of the instruments, as well aseffects of retrieval algorithms have to be considered. Temperature data of thetwo lidar systems agreed well and revealed the stratospheric warming, whichoccurred in early February 1998. NCEP temperature analyses for Spitsbergenagreed very well with lidar data before, but not during this warming event.

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