Total ozone and NO2 observations in Anadyr, Far East, Russia

SAOZ (Systeme d'Analyse par Observation Zenitale) is a UV-visible diode array spectrometer developed at the Service d'Aeronomie, CNRS, France in the late 80s for monitoring stratospheric ozone (O3) and nitrogen dioxide (NO2). It is now manufactured at the Laboratory for Atmospheric Research (LATMOS) for measuring total atmospheric ozone, nitrogen dioxide and some other atmospheric trace gases (BrO, O4). The spectrometer uses the technique of measurements in the ultraviolet and visible wavelengths of sun in the registration of the zenith sky. The wavelength range of the SAOZ instrument is in Chappuis band of ozone absorption, with a spectral resolution of 1 nm for version V-1024, and 0.7 nm for the new version V-2048. Measurement accuracy is 6% for total ozone and 10% for nitrogen dioxide. Data for the atmospheric content of O3 and NO2 measured by SAOZ spectrometers are available at the World SAOZ database, since 1988 from Dumont d'Urville station in the Southern Hemisphere, since 1989 from the Sodankyla observatory in Finland, and from additional SAOZ stations in 1990-1991. The first Asiatic SAOZ station started operation in 1991 at Zhigansk, East Siberia, Russia. A SAOZ spectrometer has been operating at Salekhard station, West Siberia, Russia since 1997. The new SAOZ UV-visible instrument is used to measure atmospheric trace gases in the polar area of the Russian Far East for the first time. The resulting total ozone and nitrogen dioxide measurements from the new model V-2048 SAOZ UV-visible spectrometer at the Hydrometeorological observatory Anadyr (64.5°N, 177.3°E) will be shown and discussed

Total ozone and ozone profile observations by SAOZ, Brewer and ozonesondes in Russia

Daily total ozone measurements are carried out in Kislovodsk, Obninsk, European Russia, and in Tomsk, Central Siberia, using the Brewer MKII N°043, Brewer MKII N°044 and Brewer MKIV N°049 spectrophotometers. The accuracy of routine total ozone observation at direct sun measurement is 2-3%. Under cloudless conditions at air mass factor less than 4, the accuracy of total ozone direct sun measurements approaches 1%. The SAOZ (Systeme d'Analyse par Observation Zenitale) is UV-visible (300-650 nm) diode array spectrometer developed at the Service d'Aeronomie, CNRS, France for monitoring stratospheric ozone and NO2. Zenith sky measurements of atmospheric gases at twilight (86 < solar zenith angle < 91 ) are used. There are 15 SAOZ instruments in the SAOZ network around the world. Two instruments are located at the Arctic Circle in Russia at Zhigansk since 1992 and Salekhard since 1998. The accuracy of total ozone measurement is 6% and 10% for nitrogen dioxide observations. The ozonesonde observations of atmospheric ozone profiles at Salekhard aerological station are carried out since 1997. Currently, we use 2Z-ECC ozonesondes for ozone profile observations in the winter-spring periods. The results of ozonesounding at Salekhard station are in the NDACC database. In December 2012 and in January 2013 we plan to upgrade this ozonesounding station with the iMet-1 radiosonde and ECC 2Z-V7 ozonesonde. This type of ozonesonde will be used in the winter-spring season of 2013. The resulting total ozone and ozonesonde profile measurements recorded in 2012 and in January-March 2013 by the SAOZ, Brewer and ozonesode instruments will be presented and discussed

Brewer, SAOZ and ozonesonde observations in Siberia

Daily total ozone measurements are carried out in Tomsk, Central Siberia using Brewer Mark-IV spectrophotometer 049 since 2003. This instrument was used at Heiss Island, Franz Josef Land, Russia in 1988-1994. The accuracy of routine total ozone observations at direct sun measurements is 2-3%. Under cloudless conditions at air mass factor less than 4, the accuracy of total ozone direct sun measurements approaches 1%, while the accuracy of direct moon observations is 2-3%. SAOZ (Systeme d'Analyse par Observation Zenitale) is UV-visible (300-650 nm) diode array spectrometer developed at the Service d'Aeronomie, CNRS, France for monitoring stratospheric ozone and NO2. Zenith sky measurements of atmospheric gases at twilight (86°< solar zenith angle < 91°) are used. There are 17 SAOZ instruments in SAOZ network around the world. Ttree instruments are located at the Arctic Circle in Russia at Zhigansk since 1992, Salekhard since 1998 and Anadyr station in Far East, Russia since January 2011. Accuracy of total ozone measurements is 6% and 10% for nitrogen dioxide observations. The results of ozone monitoring are compared with data of ozone measurements in polar vortex conditions at these stations are in SAOZ database. Currently, we use 2Z-ECC ozonesondes for ozone profile observations in winter/spring periods at Salekhard aerological station. The results of ozonesounding at Salekhard station are in NDACC database. The recent results of Brewer, SAOZ total ozone observations in Siberia and Far East, Russia, data of ozone profile observations in western Siberia at Salekhard aerological station in winter/spring sesons of 2011 and 2012 will be presented and discussed