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NORS/NDACC UV-VIS Working Group Meeting

Explore real-time and consolidated data availability from SAOZ/NDACC network. Access daily and monthly ozone and UV radiation data. Participate in funding campaigns and scientific activities for homogenization recommendations. Evaluate ozone loss and tropospheric NO2 measurements. Compare spectrometer and satellite data. Learn about data corrections and methods for atmospheric research.

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NORS/NDACC UV-VIS Working Group Meeting

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  1. NORS/NDACC UV-VIS Working Group Meeting 3-4 July 2012 Belgian Institute for Space Aeronomy (BIRA-IASB), Brussels, Belgium UV-VIS team Maud Pastel, Andrea Pazmino, Florence Goutail , Jean-Pierre Pommereau

  2. SAOZ/NDACC Network 11 french stations + Aberystwyth + Ny-Alesund + Thule Thule Ny-Alesund Zhigansk Sodankyla ScoresbySund Salekhard Aberystwyth OHP Bauru Reunion Rio Gallegos Kerguelen Dumont d’Urville Concordia

  3. SAOZ/NDACC Network

  4. Data availability • REAL TIME DATA • http://saoz.obs.uvsq.fr/SAOZ-RT.html • WOUDC (World Ozone and Ultra violet radiation Data Center) (daily) • WMO (World Meteorological Organisation) (monthly) • CAL/VAL (satellites validation) (monthly) • GEOMON (daily) • ETHER (daily) • NORS (futur) • CONSOLIDATED DATA • http://saoz.obs.uvsq.fr/SAOZ_consol_v2.html • ETHER (AtmopsphericFrench data base) http://ether.ipsl.jussieu.fr/ • NDACC • NORS (futur)

  5. Real time data Daily deliveryat WOUDC Zhigansk Sodankyla Salekhard ScoresbySund OHP http://exp-studies.tor.ec.gc.ca/cgi-bin/selectMap

  6. Real time data ProvidingRT data at WMO Monthlynewsletter on state of the ozone layer N°1-2008 http://www.wmo.int/pages/prog/arep/gaw/ozone/index.html

  7. Data archived in NDACC data base Consolidated data (version V1: annual O3 and NO2 AMF) in NDACC-DHF Consolidated data (version V2:seasonal O3 AMF) in NDACC-DHF RT data (version V1) in SAOZ web page

  8. Data archived in NDACC data base (O3_N-O3_v2)/03_v2 Pi Kerstin Stebel Kertstin.Stebel@nilu.no Consolidated data (version V1: annual O3 and NO2 AMF) in NDACC-DHF Consolidated data (version V2:seasonal O3 AMF) in NDACC-DHF RT data (version V1) in SAOZ web page

  9. Fundings

  10. Campaigns • Participation to the Canadian ACE/EUREKA Arctic campaign 2012 (Feb-March) • (with the help of Xiaoyi Zhao, U. of Toronto) • Ozone and NO2 columns. • SAOZ and Canadian UV-Visible spectrometer comparisons. • Location: 80.80°N, 86.41°W • Validation of SCIAMACHY/ENVISAT tropospheric NO2 in Paris (starting Dec. 2004) • SAOZ instrument on the roof of University UPMC in the city of Paris, France. • Location: 48.84°N, 2.34°E • Number of days of measurements: 361 • DEMEVAP campaign in OHP (Dec. 2011) • Tropospheric H2O measurements • Location : 44°N , 6°E • Number of days of measurements:25days

  11. Scientific Activities NORS WP4: NDACC UV-VIS WG recommendations for homogenisation • 1. O3: version V2 finalised and published (Hendricket al., ACP, 2011) • - Spectral analysis settings (impact <1%) • - Air Mass Factor (significant impact, specially polar regions) • Test by comparison between 8 SAOZ stations / 20 years distributed in latitude and all available nadir viewing satellites • Important to correct in the future, satellite (and Dobson /Brewer) total ozone retrievals for T and SZA dependences • 2. NO2: version V3 (under progress) • - Spectral analysis settings as V2 version • - Sunrise and sunset stratospheric AMF

  12. Scientific Activities O3 loss evaluation in Arctic VPSC weighted by sunlit vortex and SAOZ Cumulated Ozone loss Interannual variability: Sensibility of O3 loss to history of stratospheric temperature Record in 2011 (under progress for publication)

  13. Scientific Activities Long term comparisons of SAOZ/NDACC UV-Vis spectrometer and satellites total ozone and NO2 measurements at the southern tropics • Pastel et al., to be submitted in AMT Stratospheric total NO2 columns changing from 2001-2007 • Pastel et al., to be submitted in ACP

  14. Scientific Activities Tropospheric NO2 columns Correction of the multiple scattering NO2 tropospheric AMF • Use of thismethodat Paris and OHP stations. • Extension to La Réunion station understudy

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