Belgian contributions to ozone research and monitoring

Transcription

1 8th WMO/UNEP ORM Meeting, WMO, Geneva, National and Regional Reports Region 6: Europe Belgian contributions to ozone research and monitoring Jean-Christopher Lambert Belgian Institute for Space Aeronomy (IASB-BIRA), Brussels, Belgium

2 Observations (1) Ground-based Long-term ground-based measurements Sustained contributions to GAW and NDACC Dobson #40 (since 1971) in Uccle, moved in 2009 to Kiev Brewer #16 (since 1983) & Brewer #178 (since 2001) in Uccle Brewer #100 (since 01/2011) at Belgian Antarctic Stat. Princess Elisabeth ECC ozone soundings (since 1997) and Brewer-Mast archive ( ) Network of UV measurements over Belgium FTIR spectrometer at the Jungfraujoch (since early 1980s) O 3, NO 2, HNO 3, CO, CH 4, N 2 O, HCl, ClONO 2, HF, COF 2, CCl 2 F 2, CHClF 2, CCl 4 DOAS UV-VIS spectrometers at the Jungfraujoch O 3, NO 2 (since 1990) + BrO, H 2 O, HCHO, aerosols (since 2010) DOAS UV-VIS spectrometers at Harestua (since 1994) O 3, NO 2, BrO, OClO DOAS UV-VIS spectrometers at OHP (since 1998) O 3, NO 2, BrO, OClO, HCHO FTIR spectrometer at Reunion Island (since 2002/2009, new CO/CO 2 FTIR in 2010) O 3, NO 2, HNO 3, CO, CO 2, CH 4, N 2 O, HCl, ClONO 2 DOAS UV-VIS spectrometers at Reunion Island ( ) O 3, NO 2, BrO, HCHO

3 Observations (2)

4 Observations: Total ozone trend at Uccle De Backer et al., 2011 Figure 1: Running annual mean of total ozone (in Dobson Units) from Dobson and Brewer spectrophotometers in Uccle, Belgium.

5 Ozone trends from NDACC FTIRs Vigouroux et al. (2008) provide total ozone trends from homogenized FTIR measurements in European stations, over the period. These trends have been updated for the period for the present Assessment and are summarized in Table 2-1. Because the time series are too short to employ the multi-regression models, a bootstrap resampling method was used, which allows for non-normally distributed data and gives an independent evaluation of the uncertainty in the trend value (Gardiner et al., 2008). The total column trends are close to zero and not significant at all stations except at Kiruna, where the trend is significantly positive. From WMO/UNEP Ozone Assessment 2010

6 Observations: Inorganic fluorine at JFJ Duchatelet et al., 2011

7 Observations (2) Satellites Satellite measurements GOME, SCIAMACHY, OMI, GOME-2A/B GOMOS, IASI, MIPAS, SCIAMACHY, ACE-FTS Future: TropOMI, Sentinels 4 and 5, others Interest: O3, sources, reservoirs, GHG, aerosols Activities Mission advisory, instrumental development Development of retrieval algorithms Generation of level-2/3/4 data products (incl. DA) Support to operationalisation and operations Geophysical validation and QA monitoring Scientific interpretation International cooperation: CEOS, GMES, IO3C, NDACC, O3M-SAF etc.

8 Support to Ozone Long-Term Monitoring with European Sensors GOME SCIA. OMI June 1995 GOME-2 GOME-2 GOME-2 S5p S4 S5 E39C-A (SCN-B2d), Stenke et al., ACP, 2009 ~35 years GOME/SCIAMACHY/GOME-2, Loyola et al., IJRS Montreal Protocol special issue, 2009

9 SCIAMACHY Quality Working Group (SQWG) Troposheric BrO product First application of the GOME-2 algorithm to the SCIAMACHY data. Preliminary results Theys et al., Global observations of tropospheric BrO columns using GOME-2 satellite data, ACP, 2010.

10 Column retrievals from MetOp-A/B GOME-2 Framework: Support to O3M-SAF Continuous Development and Operations, for GOME-2 data product development and validation Activities: Develop state-of-the-art algorithms for trace gas retrievals from GOME-2, and support their integration into the operational processor at DLR-Oberpfaffenhofen Assess consistency with other sensors (GOME, SCIAMACHY, OMI) and between GOME-2A and GOME-2B Perform initial validation and routine monitoring of data products. Data products: O3M-08 Offline Bromine Monoxide O3M-09 Offline Total Sulfur Dioxide OTO/BrO OTO/SO2 UV-Vis nadir trace gases: O 3, NO 2, BrO, SO 2, HCHO, CHOCHO

11 IASI operational and science processing (1) 1.4x x Radiance (W / cm sr cm ) Radiance Measurements CO2 IASI spectrum IASI species HNO3 CFC11, CFC12 1.0x x x x x10 CFC12 CO O3 CO2, N2O Ts=275 K N2O, CH4 H216 O, HOD HOD H216O H218O -6 CH Wavenumber (cm ) Weather Atmospheric chemistry Climate lifetime Radiative transfer Retrievals years Weeks days hours Local-to global atmospheric concentrations CFC11 N2O CO2 CH4 OCS CO O3 HNO3 SO2 H2O + Iso VOCs NH3

12 IASI operational and science processing (2) Overview of species / processes CO O 3 -tropo HCOOH CH 3 OH Global mapping HNO 3 O 3 -total NH 3 SO 2 Tropospheric ozone Slicing atmospheric ozone IASI overview paper submitted to BAMS, dec 2010 CO HCOOH CH 3 OH Stratospheric ozone NH3 June September November

13 New mission: ALTIUS PROBA heritage 94 kg spacecraft mass, 25 kg EO payload Small and agile gyro-less LEO platform, whose attitude determination is based on autonomous star tracker only Prime contractor: Verhaert Design and Development (Belgium) Ground segment in Redu (Belgium), partnership ESA/BELSPO ALTIUS concept Entire detector used as an atmospheric limb imager to solve the tangent altitude registration problem Acousto-optical tunable filters (AOTF) Limb spectra in the UV-vis-NIR Tomography capabilities O 3, trace gases, aerosols, clouds

14 Contribution to ESA CCI-Ozone 13 partners Core Management Team CMT M. Van Roozendael BIRA Earth Observation Science Team Climate Research Group CRG M. Dameris DLR-PA System Engineering Team SET M. Wolfmüller DLR-DFD EO Science Team 1 EOST-1 D. Loyola DLR-IMF EO Science Team 2 EOST-2 R. van der A KNMI EO Science Team 3 EOST-3 M. Weber IUP Total ozone Nadir profiles Limb/occultation Validation Team VALT J.C. Lambert BIRA

15 Multi-mission consistency of ozone profilers ProDEx SECPEA / ESA CCI / SPARC OP3trends POLE-TO-POLE STRUCTURE OF THRESHOLD ALTITUDE (VS. OZONESONDE NETWORK) POLE-TO-POLE STRUCTURE OF SATELLITE DRIFTS IN THE STRATOSPHERE (VS. GAW & NDACC) SAGE-II v6.2 ACE-FTS v2.2u HALOE v19 SCIAMACHY SGP 3.01 (from SPARC/IO3C/IGACO poster by D. Hubert et al., 2011) MIPAS IPF 4.61/2 GOMOS v6.0cf / IPF 5.00

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18 Activities associated with 7ORM recommendations Observation of O 3 AND related species AND climate related species => O 3, reactive gases, ODS, ODS substitutes, GHGs, aerosols Redistribution of measurements => KNMI Brewer moved to Belgian Antarctic station, RMI Dobson moved to Kiev QA of data => homogeneity survey of networks, establishment of validation protocols (for O3, AQ, GHG, GAS ), multi-mission validation of satellite data records (in climate change context) Metadata => efforts to improve satellite and GB metadata, inclusion of info content (e.g. averaging kernels), improvement of generic metadata for atmospheric composition Continuation of/gap filling satellite missions, increase of global monitoring facilities, e.g. limb => ALTIUS; support to S5 Precursor Reducing measurement uncertainty => BELSPO/ProDEx SECPEA and A3C, ESA QWGs, EUMETSAT O3M-SAF, ESA CCI-Ozone Understand differences between data sets => field campaigns, ACSO, multi-dimensional observation operators Improved ozone cross-sections => ACSO: satellite retrieval studies Increased level of collaboration between observational networks (and with satellite missions) => CEOS and NDACC sponsored campaigns, involvement in NDACC WGs, system engineering for the GMES Atmospheric Service, EU FP6 GEOmon (+ NORS)