Kein FolientitelValidation by Balloons and Aircraft - ESRIN - 9–13 December 2002
Validation of MIPAS on ENVISAT by
in situ instruments on the M55-Geophysica
J. Heland, H. Schlager, C. Schiller, N. Sitnikov, A. Ulanovsky,
F. Ravegnani, C. M. Volk, A. Werner, A. Petritoli, I. Kostadinov,
F. Stroh, M. v. Hobe, C. Blom, and the Geophysica-Team
- Motivation
Validation by Balloons and Aircraft - ESRIN - 9–13 December 2002
Background
To fully exploit ENVISAT satellite data for science & for pollution
and global change monitoring extensive validations are needed
Advantages of in situ aircraft data for validation of satellite data:
- many species are measured simultaneously
- independent, well characterized and proven techniques
- high accuracies
- ability to sample highly coincident data
Page *
Validation by Balloons and Aircraft - ESRIN - 9–13 December 2002
M55-Geophysica In Situ Instrumentation
...put the table here...
Validation by Balloons and Aircraft - ESRIN - 9–13 December 2002
Quality Checks of July 2002 M55-Geophysica Data
Page *
Validation by Balloons and Aircraft - ESRIN - 9–13 December 2002
M55-Geophysica Flight on 22 July 2002
Page *
Validation by Balloons and Aircraft - ESRIN - 9–13 December 2002
O3 Consistency & Comparison
approx. altitude (km)
Validation by Balloons and Aircraft - ESRIN - 9–13 December 2002
HNO3 Consistency & Comparison July 2002
TP @ 350 K
Validation by Balloons and Aircraft - ESRIN - 9–13 December 2002
H2O Comparison, July & October 2002
(K)
Page *
Validation by Balloons and Aircraft - ESRIN - 9–13 December 2002
CH4 & N2O Comparison on 22 July 2002
TP @ 350 K
Validation by Balloons and Aircraft - ESRIN - 9–13 December 2002
First HALOX ClONO2 Measurements, preliminary
First measurements of ClONO2
campaign
previous observations and models
standard product during the Arctic
validation campaign in Feb./Mar. 2003
Volume Mixing Ratio (pptV)
Validation by Balloons and Aircraft - ESRIN - 9–13 December 2002
Summary
during July and October 2002
Aircraft Data Status:
- preliminary data available for October 2002
Data Quality Checks:
- O3 comparison with models and climatological mean
Page *
Validation by Balloons and Aircraft - ESRIN - 9–13 December 2002
Conclusions
- The M55-Geophysica in situ data from July 2002 are of high quality and
are ready for comparison with ENVISAT data
- First comparisons with MIPAS-E standard products from 4 limb scans:
only for stratospheric measurements
Validation by Balloons and Aircraft - ESRIN - 9–13 December 2002
- Larger deviations and variances in tropopause region
- First comparisons look promising, but more comparisons are
needed for sound assessment of ENVISAT data quality
- Next validation campaign: February/March 2003 in Kiruna
Conclusions (cont’d)