page 1 envisat validation workshop, acvt-gbmcd, mipas o 3 12/12/2002 envisat validation workshop...
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Page 1Envisat Validation Workshop, ACVT-GBMCD, MIPAS O3 12/12/2002
Envisat Validation Workshop
Atmospheric Chemistry Validation Team
Ground-Based Measurements and Campaign Database Subgroup
Comparison with MIPAS O3 Profiles
Thomas Blumenstock, IMK/FZK Karlsruhe, [email protected]
Page 2Envisat Validation Workshop, ACVT-GBMCD, MIPAS O3 12/12/2002
Validation Team
Projects involved:• AOID 158• AOID 179• AOID 191• AOID 300• AOID 360• AOID 9003
Instruments involved:• GB MWR• GB LIDAR• GB FTIR• O3 sondes
Ground-based FTIR Kiruna,AOID 191,A. Griesfeller,T. Blumenstock,F. Hase,U. Raffalski et al.
Groundbased LIDAR Lauder,AOID 9003,Y. Meijer,D. Swart et al.
NDSC, AOID 158, V. Soebijanta,J.-C. Lambert,Y. Calisesi, S. Godin, H. Claude et al.
O3 sonde Uccle,AOID 300,H. Schets et al.
LIDAR Andoya,AO 9073, 360K. Stebel, G. Hansen,Y. Orsolini et al.
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Intercomparison of Ozone Profiles
Groundbased FTIR Izana,AOID 191,A. Griesfeller,M. Schneider,T. Blumenstock,F. Hase et al.
Page 4Envisat Validation Workshop, ACVT-GBMCD, MIPAS O3 12/12/2002
Intercomparison of Ozone Profiles
Groundbased FTIR Kiruna,AOID 191,A. Griesfeller,T. Blumenstock,F. Hase,U. Raffalski et al.
Page 5Envisat Validation Workshop, ACVT-GBMCD, MIPAS O3 12/12/2002
Intercomparison of Ozone Profiles
Groundbased FTIR Kiruna,AOID 191,A. Griesfeller,T. Blumenstock,F. Hase,U. Raffalski et al.
Page 6Envisat Validation Workshop, ACVT-GBMCD, MIPAS O3 12/12/2002
Intercomparison of Ozone Profiles
Groundbased FTIR Kiruna,AOID 191,A. Griesfeller,T. Blumenstock,F. Hase,U. Raffalski et al.
Page 7Envisat Validation Workshop, ACVT-GBMCD, MIPAS O3 12/12/2002
Page 8Envisat Validation Workshop, ACVT-GBMCD, MIPAS O3 12/12/2002
Intercomparison of Ozone Profiles
Groundbased FTIR Kiruna,AOID 191,A. Griesfeller,T. Blumenstock,F. Hase,U. Raffalski et al.
FTIR Kiruna (& Izana):
7 (2) comparisons
with MIPAS version 4.53 (before Nov. 13)
around 20 km: MIPAS vmr too low (up to 0.8 ppmv)
around 30 km: MIPAS vmr too large (up to 0.8 ppmv)
MIPAS columns (integr. prof. >16 km): ~ 10% too large
altitude assignment:
alt. shift of ~1.5 km
MIPAS VMR (p) agrees better than VMR (H)
Page 9Envisat Validation Workshop, ACVT-GBMCD, MIPAS O3 12/12/2002
Intercomparison of Ozone Profiles
Groundbased LIDAR Lauder,AOID 9003,Y. Meijer,D. Swart et al.
Page 10Envisat Validation Workshop, ACVT-GBMCD, MIPAS O3 12/12/2002
Intercomparison of Ozone Profiles
Groundbased LIDAR Lauder,AOID 9003,Y. Meijer,D. Swart et al.
Page 11Envisat Validation Workshop, ACVT-GBMCD, MIPAS O3 12/12/2002
Intercomparison of Ozone Profiles
LIDAR O.H.P.S. Godin et al.(CNRS/SA)
AOID 158,J.-C. Lambert,V. Soebijanta et al.
Page 12Envisat Validation Workshop, ACVT-GBMCD, MIPAS O3 12/12/2002
Intercomparison of Ozone Profiles
LIDAR O.H.P.S. Godin et al.(CNRS/SA)
AOID 158,J.-C. Lambert,V. Soebijanta et al.
Page 13Envisat Validation Workshop, ACVT-GBMCD, MIPAS O3 12/12/2002
Intercomparison of Ozone Profiles
Groundbased LIDAR Andoya,AOID 9073, 360,K. Stebel,G. Hansen,Y. Orsolini et al.
Page 14Envisat Validation Workshop, ACVT-GBMCD, MIPAS O3 12/12/2002
Intercomparison of Ozone Profiles
Groundbased LIDAR Andoya,AOID 9073, 360,K. Stebel,G. Hansen,Y. Orsolini et al.
Page 15Envisat Validation Workshop, ACVT-GBMCD, MIPAS O3 12/12/2002
Intercomparison of Ozone Profiles
LIDAR
Lauder :
7 comparisons with MIPAS version 4.53
height assignment is reasonable
good agreement
O.H.P. / Alomar:
7 (6) comparisons with MIPAS version 4.53
good agreement above ~20 km
altitude: 1 - 2 km
Page 16Envisat Validation Workshop, ACVT-GBMCD, MIPAS O3 12/12/2002
Intercomparison of Ozone Profiles
O3 sonde Uccle,AOID 300,H. Schets et al.
Page 17Envisat Validation Workshop, ACVT-GBMCD, MIPAS O3 12/12/2002
Intercomparison of Ozone Profiles
O3 sonde Uccle,AOID 300,H. Schets et al.
Page 18Envisat Validation Workshop, ACVT-GBMCD, MIPAS O3 12/12/2002
Intercomparison of Ozone Profiles
O3 sonde HohenpeissenbergH. Claude (DWD)AOID 158,J.-C. Lambert,V. Soebijanta et al.
Page 19Envisat Validation Workshop, ACVT-GBMCD, MIPAS O3 12/12/2002
Intercomparison of Ozone Profiles
O3 sonde HohenpeissenbergH. Claude (DWD)AOID 158,J.-C. Lambert,V. Soebijanta et al.
Page 20Envisat Validation Workshop, ACVT-GBMCD, MIPAS O3 12/12/2002
Intercomparison of Ozone Profiles
O3 sonde Uccle,AOID 300,H. Schets et al.
O3 sondes
Uccle:
34 comparisons with MIPAS version 4.53
before Nov. 13: error in height assignment: 1 - 2 km
quantitative analysis in progress
Hohenpeissenberg:
5 comparisons with MIPAS version 4.53
good agreement above ~18 km
error in height assignment: 1 - 2 km
Page 21Envisat Validation Workshop, ACVT-GBMCD, MIPAS O3 12/12/2002
Intercomparison of Ozone Profiles
MWR PayerneY. Calisesi et al. (MCH)
AOID 158,J.-C. Lambert,V. Soebijanta et al.
Page 22Envisat Validation Workshop, ACVT-GBMCD, MIPAS O3 12/12/2002
Intercomparison of Ozone Profiles
MWR PayerneY. Calisesi et al.
AOID 158,J.-C. Lambert,V. Soebijanta et al.
Page 23Envisat Validation Workshop, ACVT-GBMCD, MIPAS O3 12/12/2002
Intercomparison of Ozone Profiles
72 comparisonsMWR PayerneY. Calisesi et al.
AOID 158,J.-C. Lambert,V. Soebijanta et al.
Page 24Envisat Validation Workshop, ACVT-GBMCD, MIPAS O3 12/12/2002
Intercomparison of Ozone Profiles
38 comparisonsMWR PayerneY. Calisesi et al.
AOID 158,J.-C. Lambert,V. Soebijanta et al.
Page 25Envisat Validation Workshop, ACVT-GBMCD, MIPAS O3 12/12/2002
Intercomparison of Ozone Profiles
MWR PayerneY. Calisesi (MCH)
AOID 158,V. Soebijanta, J.-C. Lambert et al.
MWR Payerne:
110 comparisons!
with MIPAS version 4.53
before Nov. 13:
agreement above ~22 km
altitude: 1 - 2 km
after Nov. 13:
significant improvement
good agreement
Page 26Envisat Validation Workshop, ACVT-GBMCD, MIPAS O3 12/12/2002
ConclusionComparisons with MIPAS 4.53 (data from Oct. 24 onwards)
using g.b. MWR, LIDAR, FTIR, and O3 sondes
before Nov. 13:
altitude: 1 - 2 km
< 20 km: MIPAS vmr too low >25 km: MIPAS vmr too large
after Nov. 13:
O3 sondes Uccle & MWR Payerne (110 comparisons !) :
height assignment is reasonable
much better agreement
Quality of MIPAS O3 profiles is quite promising
Page 27Envisat Validation Workshop, ACVT-GBMCD, MIPAS O3 12/12/2002
OutlookA quantitative validation has to be perfomed
Data from MIPAS observations before Oct. 24 are needed
More than 1000 files with O3 profile data on CAL/VAL data base
Topics to be addressed:
• day / night differences
• latitudinal dependence
• coincidence criteria: influence of different time and geolocation
• other MIPAS products (species)
Page 28Envisat Validation Workshop, ACVT-GBMCD, MIPAS O3 12/12/2002
Intercomparison of HNO3 Profiles
Groundbased FTIR Kiruna,AOID 191,A. Griesfeller,T. Blumenstock,F. Hase,U. Raffalski et al.
Page 29Envisat Validation Workshop, ACVT-GBMCD, MIPAS O3 12/12/2002
Intercomparison of N2O Profiles
Groundbased FTIR Kiruna,AOID 191,A. Griesfeller,T. Blumenstock,F. Hase,U. Raffalski et al.