Target molecules and expected quality

Size: px

Start display at page:

Download "Target molecules and expected quality"

Hilary Turner
5 years ago
Views:

1 6 Validation Plan 6.1 JEM/SMILES measurements 6.2 Basic strategy 6.3 Validation for O 3, HCl and ClO 6.4 Validation for BrO and HNO Validation for other species 6.6 Collaboration for validation 6.7 Support for validation activities 6.8 Summary

2 JEM/SMILES measurements Target molecules and expected quality km % 20% 50% 80% 10 O 3 HCl ClO CH 3 CN HNO 3 HOCl HO 2 BrO O 3 isotopes What is the suitable way how to establish and maintain the quality of data, especially halogen molecules (ClO, HO 2 and BrO)? => Continuous activity for validation is required.

3 JEM/SMILES measurements Foot points and measurement opportunity The measurement area is extended toward the northern hemisphere (65 o N 38 o S).

4 Basic strategy of the JEM/SMILES validation experiment Basic strategy A plan for JEM/SMILES validation consists of three category issues. For species which vertical distribution can be retrieved from one-scan data (O 3, HCl and ClO) with JEM/SMILES, one-to-one comparison with other validated data which are obtained with ground, balloon and satellite instruments, is required. For species whose vertical distribution is retrieved from area or temporal averaged data with JEM/SMILES, a) if validation data even with some limitation (column data only) are obtained, such as BrO and HNO 3, comparison with the data is needed. b) if validation data are not provided at present, such as CH 3 CN and HOCl, comparison with model simulation results as well as experimental measurements with ground/balloon instruments is needed.

5 Validation for O 3, HCl and ClO O 3 : from tropopause to middle stratosphere Validation for O 3, HCl and ClO For these species, many kinds of data from ground/balloon/satellite are obtained and archived in public place. The SMILES science team basically plans to use these data for validation. In addition, some activities of campaign measurements are also supported (but without financial contribution). => routine measurements with balloon/ground/satellite upper stratosphere and mesosphere => applying proposals on validation is encouraged. Especially, ground-based microwave measurements are preferable for validation HCl: a ground-based FTIR is the most powerful tool for validation => routine measurements, proposals on intensive (campaign) measurements are also encouraged. ClO: microwave satellites and a ground-based microwave instrument is provided an unique dataset for validation => applying proposals on validation from microwave colleagues is highly encouraged.

6 Validation for O 3, HCl and ClO Routine measurement: WOUDC archive data based on total column and vertical profile of O 3 at WMO-GAW and SHADOZ Many sites (>80%) are located in the JEM/SMILES measurement area. => Large number of the correlative measurements for O 3 is expected.

7 Campaign in tropical region Validation for O 3, HCl and ClO Soundings of Ozone and Water in the Equatorial Region/Pacific Mission (SOWER/Pacific) Mirai Shoyo-maru Filling the gap of data sparse area such as in the equatorial Pacific using balloon observations in collaboration with NOAA/CMDL Understanding the climatology and variability of ozone and water vapor Tropospheric chemistry, Satellite validation...

8 NDACC instruments and measured properties Validation for O3, HCl and ClO Dobson & Brewer: O3 column Sondes: vertical profile of T, O3, aerosol UV/Visible spectrometer: column of O3, NO2, BrO, OClO, LIDAR: vertical profile of T, O3, aerosol FTIR: column and vertical profile of O3, HCl, HNO3, ClONO2, N2O, CH4, HF and more Microwave: vertical profile of O3, ClO, H2O,

Validation for O 3, HCl and ClO FTIR at Poker Flat, Fairbanks, ALASKA Validation of O 3, HCl, HNO 3 Solar Absorption Observation ACE-FTS validation campaign HNO 3, ClONO 2,

Mahieu et al., Atmos. Chem. Phys. Discuss., 8, 3431-3495, 2008 < Specification of FTS> FTIR: Bruker 120HR Frequency resolution: 0.

9 Validation for O 3, HCl and ClO FTIR at Poker Flat, Fairbanks, ALASKA Validation of O 3, HCl, HNO 3 Solar Absorption Observation ACE-FTS validation campaign HNO 3, ClONO 2, and N 2 O 5 M. A. Wolff et al., Atmos. Chem. Phys. Discuss., 8, , 2008 Ozone: E. Dupuy et al., Atmos. Chem. Phys. Discuss., 8, , 2008 HCl, HF, CCl 3 F and CCl 2 F 2 E. Mahieu et al., Atmos. Chem. Phys. Discuss., 8, , 2008 < Specification of FTS> FTIR: Bruker 120HR Frequency resolution: cm -1 Frequency Region: cm -1 Detector:MCT, InSb ILAS-II Validation campaign O 3,HNO 3, and temperature M. Yamamori et al., J. Geophys.Res., Vol.111, No.D11,.2005JD (2006) MLS validation campaign

10 Validation for O 3, HCl and ClO ClO measurements at Las Campanas Observatory in Chile MLS This work

11 Validation for BrO and HNO 3 Validation for BrO and HNO 3 For these species, retrieval of vertical distribution with SMILES requires to average obtained spectra because the emission is weaker than that of O 3, HCl and ClO. The SMILES Science Team strongly encourages to apply your research proposals for colleagues who have been measured them or who have a plan to measure them. BrO: column measurement with a ground-based UV/Vis spectrometer HNO 3 : column and vertical distribution measured with a groundbased FTIR

12 NDACC instruments and measured properties Validation for BrO and HNO3 Dobson & Brewer: O3 column Sondes: vertical profile of T, O3, aerosol UV/Visible spectrometer: column of O3, NO2, BrO, OClO, LIDAR: vertical profile of T, O3, aerosol FTIR: column and vertical profile of O3, HCl, HNO3, ClONO2, N2O, CH4, HF and more Microwave: vertical profile of O3, ClO, H2O,

13 Validation for other species Validation for other species For other species measured with JEM/SMILES, their vertical distribution is retrieved from a spatial or temporal averaged spectrum. The SMILES Science Team encourages all colleagues who interested in measurements and sciences related to these species to collaborate with the Science Team for better understanding and validation as well as applying for the Research Announcement. HOCl and CH 3 CN? HO 2 : ground-based millimeter-wave? O 3 isotope:?

Comparison with model results Validation for other species Example of CCSR/NIES model results: More BrO in sunlit area with steep increase/decrease at dawn/dusk Slightly larger maximum

14 Comparison with model results Validation for other species Example of CCSR/NIES model results: More BrO in sunlit area with steep increase/decrease at dawn/dusk Slightly larger maximum in the morning than in the evening Local min. around 13-14LT (~20% lower than morning/evening max.) Diurnal variations can be compared with results from the chemical transport model output.

15 Collaboration for validation Collaboration for validation A site where coordinated measurements of the species related with the SMILES measurements are made, is a great ability for the JEM/SMILES validation. The SMILES Science Team seeks possibility to collaborate with such a site, especially on intensive measurements or cooperated measurements for validation. Otherwise, we also strongly encourages to apply the proposals from such a site.

16 Support for validation activities Support for validation activities The SMILES Science Team provides you Finder of JEM/SMILES measurement locations (with prediction) Data handling and viewing softwares if you need (HDF data) Coordinate validation campaigns & meetings (with limited financial support) Advance access to the JEM/SMILES data including preliminary results Issue reports on validation activity and results and more

17 Finder of JEM/SMILES measurement locations Support for validation activities

18 Summary Summary A plan for JEM/SMILES validation consists of three category issues. For O3, HCl and ClO: one-to-one comparison with other validated data which is mainly obtained with routine measurements For BrO and HNO3: comparison with validation data even with some limitation (ex. column) For other species: comparison with model simulation results as well as experimental measurements with ground/balloon instruments The SMILES Science Team seeks possibility to collaborate with a site where coordinated measurements of the species related with the SMILES measurements are made and where intensive measurements or cooperated measurements for validation is strongly desirable. Otherwise, we also strongly encourages to apply the proposals from such a site Protocol and guide line for the JEM/SMILES validation will be defined as soon as possible. The SMILES Science Team supports your validation activities to provide some software tools and to coordinate validation campaigns and meetings as well as to issue reports on validation activities.

ATMOSPHERE REMOTE SENSING

ATMOSPHERE REMOTE SENSING Validation of Satellite Products Paul Simon Institut d Aéronomie spatiale de Belgique Acknowledgements: C. De Clercq, M. De Mazière, I. De Smedt, B. Dils, P. Gerard, J. Granville,