TY  - JOUR
AU  - Smit, H. G. J.
AU  - Straeter, W.
AU  - Johnson, B.
AU  - Oltmans, S.
AU  - Davies, J.
AU  - Tarasick, D. W.
AU  - Hoegger, B.
AU  - Stubi, R.
AU  - Schmidlin, F.
AU  - Northam, T.
AU  - Thompson, A.
AU  - Witte, J.
AU  - Boyd, I.
AU  - Posny, F.
TI  - Assessment of the performance of ECC-ozonesondes under quasi-flight conditions in the environmental simulation chamber: Insights from the Jülich Ozone Sonde Intercomparison Experiment (JOSIE)
JO  - Journal of Geophysical Research
VL  - 112
SN  - 0148-0227
CY  - Washington, DC
PB  - Union
M1  - PreJuSER-59632
SP  - D19306
PY  - 2007
N1  - Record converted from VDB: 12.11.2012
AB  - [1] Since 1996, quality assurance experiments of electrochemical concentration cell (ECC) ozonesondes of two different model types (SPC-6A and ENSCI-Z) have been conducted in the environmental simulation facility at the Research Centre Juelich within the framework of the Juelich Ozone Sonde Intercomparison Experiment (JOSIE). The experiments have shown that the performance characteristics of the two ECC-sonde types can be significantly different, even when operated under the same conditions. Particularly above 20 km the ENSCI-Z sonde tends to measure 5-10% more ozone than the SPC-6A sonde. Below 20 km the differences are 5% or less, but appear to show some differences with year of manufacture. There is a significant difference in the ozone readings when sondes of the same type are operated with different cathode sensing solutions. Testing the most commonly used sensing solutions showed that for each ECC-manufacturer type the use of 1.0% KI and full buffer gives 5% larger ozone values compared with the use of 0.5% KI and half buffer, and as much as 10% larger values compared with 2.0% KI and no buffer. For ozone sounding stations performing long term measurements this means that changing the sensing solution type or ECC-sonde type can easily introduce a change of +/- 5% or more in their records, affecting determination of ozone trends. Standardization of operating procedures for ECC-sondes yields a precision better than +/-(3-5)% and an accuracy of about +/-(5-10)% up to 30 km altitude.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000250219000003
DO  - DOI:10.1029/2006JD007308
UR  - https://juser.fz-juelich.de/record/59632
ER  -