Page 1 Validation by Model Assimilation and/or Satellite Intercomparison - ESRIN 9–13 December D-VAR chemical data assimilation of ENVISAT chemical products (BASCOE): validation support issues Authors: D. Fonteyn, S. Bonjean, S. Chabrillat, F. Daerden, Q. Errera BIRA-IASB bascoe.oma.bebascoe.oma.be (soon)
Page 2 Validation by Model Assimilation and/or Satellite Intercomparison - ESRIN 9–13 December D-VAR chemical data assimilation of ENVISAT chemical products (BASCOE): validation support issues BASCOE: v1.01 (57 species, psc, 5° × 5°, 37 vertical levels) MIPAS NLE: O 3, H 2 O MIPAS NRT all chemical species: problems reading pds-files ECMWF analysis Background error covariance ›› observation error covariance Spatial correlations
Page 3 Validation by Model Assimilation and/or Satellite Intercomparison - ESRIN 9–13 December 2002 BASCOE: qualitative comparison Groundstations: total column Effect of horizontal resolution
Page 4 Validation by Model Assimilation and/or Satellite Intercomparison - ESRIN 9–13 December 2002 Comparison with MIPAS_NLE observations: Constraining observations Non-constraining observations (5 %): independent non- biased observations, representativeness of MIPAS
Page 5 Validation by Model Assimilation and/or Satellite Intercomparison - ESRIN 9–13 December 2002 Constraining observationsNon-constraining observations: not used in assimilation MIP_NLE O 3
Page 6 Validation by Model Assimilation and/or Satellite Intercomparison - ESRIN 9–13 December 2002 MIP_NLE H 2 O Constraining observationsNon-constraining observations: not used in assimilation
Page 7 Validation by Model Assimilation and/or Satellite Intercomparison - ESRIN 9–13 December 2002 Time evolution co-located H 2 O BASCOE MIP_NLE and HALOE
Page 8 Validation by Model Assimilation and/or Satellite Intercomparison - ESRIN 9–13 December 2002 Time evolution co-located CH 4 BASCOE MIP_NLE and HALOE
Page 9 Validation by Model Assimilation and/or Satellite Intercomparison - ESRIN 9–13 December 2002 Time evolution co-located HCl BASCOE MIP_NLE and HALOE
Page 10 Validation by Model Assimilation and/or Satellite Intercomparison - ESRIN 9–13 December 2002 Quantitative comparison: co-located means + std deviation BASCOE, l HALOE sunrise sunset
Page 11 Validation by Model Assimilation and/or Satellite Intercomparison - ESRIN 9–13 December 2002 Quantitative comparison HALOE – BASCOE MIP_NLE: co-located mean difference + std deviation sunrise sunset
Page 12 Validation by Model Assimilation and/or Satellite Intercomparison - ESRIN 9–13 December 2002 Quantitative comparison: co-located means + std deviation BASCOE, l HALOE
Page 13 Validation by Model Assimilation and/or Satellite Intercomparison - ESRIN 9–13 December 2002 Quantitative comparison HALOE – BASCOE MIP_NLE: co-located mean difference + std deviation
Page 14 Validation by Model Assimilation and/or Satellite Intercomparison - ESRIN 9–13 December 2002 NRT validation: Cloud top height Thanks to Univ Leicester
Page 15 Validation by Model Assimilation and/or Satellite Intercomparison - ESRIN 9–13 December 2002 Conclusions Successful assimilation of MIP_NLE, representing MIPAS_NLE state Ozone column compares well with groundstation observations Quantitative comparison with HALOE: Expectations of MIPAS recommendations: impatience Cloud top height ! Chlorine budget ! MIPAS potential Ground segment ! Coverage! pds format!