Oxford MIPAS meeting#42
28 Oct 03

Present

Instrument Status [Prev] [Next] (Some details on the Envisat Web-Site)

L2 Data [Prev] [Next]
In /home/crun/eodg/mipas/L2/ [Plots of profile locations]

ESA Processing [Prev] [Next]
See Message from Rob Koopman

30km Zonal Mean Traces (AD) [Prev] [Next]
Plots of day-by-day zonally-averaged NRT data 30km nominal tangent height
Increased "noise" reported to ESA - Rob Koopman replies that there were no changes in processing in early October to cause this
ESA are also aware of attitude oscillation signatures in SCIAMACHY and GOMOS data - still under investigation

Joint Retrieval Microwindows (CP) [Prev] [Next]
Investigating which combination of species are best retrieved jointly in terms of information gained: H2O + pT seems best
Also investigating best sequence of retrievals (following pT): H2O first seems best.

Data Assimilation (MJ) [Prev] [Next]
Currently looking for ozone sonde data and investigating effect of vertical resolution on assimilation.

OPTIMO Retrievals (CP) [Prev] [Next]
Reprocessing Sep/Oct 2002 data using the Oxford processor, OPTIMO. Originally pT, O3 and H2O but now adding CH4
Investigating effect of different a priori and vertical correlations

MIPAS-STR Retrievals (VP) [Prev]
Writing code to retrieve CH4 and H2O from IMK aircraft version of MIPAS - still at the debugging stage.

SF6 Retrievals (AB) [Prev] [Next]
Running OPTIMO to retrieve SF6 (and pT)

Message from Rob Koopman (28 Oct 03)

An interesting input may be the information that I have just received from the ground-segment team: the new Aux Data (version 3.6) will be activated this week in the NRT processing chain. The update of the off-line processor ADFs (version 3.6) will take place next week, but dissemination will have to wait until consolidated level 1B products with new ADFs arrive at the D-PAC. Latest news is also that the awkward distribution on media for the OFL products has been replaced by a much more convenient FTP server (address to be announced shortly) Below is an overview of the aux file evolution within the QWG, generated by Piera Raspollini. Several deliverables have only been used for tests during the improvement process. In the ground segment, version 3.1 has been implemented on 23 July 2003 and will remain active there until the update to version 3.6.

All operations information in your minutes are correct, but let me know if you'd like any additional info. We'll do our best to improve on this. For the increased noise we'll have to look into anything that we expect to change. Do you think pointing deviations could translate into such temperature retrieval deviations? (note: These are QWG-internal deliveries: only version 3.1 and version 3.6 are/will be used in operational data processing) 

MIPAS Level 2 AUX DATA delivered to ESA-ESRIN since May 2003.

V3.0 delivered on 14 05 2003
Improved and cloud-detection enabled Microwindows,
improved Occupation matrices, Spectroscopy, all for the 'nominal' range

Delivered binary files:
MIP_CS2_AX_feb03_bin
MIP_IG2_AX_october_bin
MIP_MW2_AX_feb03_CD
MIP_MW2_AX_feb03_noCD
MIP_OM2_AX_feb03_newpri
MIP_PI2_AXV___20000101_000000_20000101_000000_20060101_000000
MIP_PS2_AX_mod_ILS_2nd_ord_spcor_inv_020920_newsett_newvar
MIP_SP2_AX_feb03_bin


V3.1 delivered on 11 06 2003 and 19 06 2003 (in reply to SPR
MIPAS_OM2_AX_3.0_RM_030605_1)
Improved Occupation Matrices (no gaps between altitude
 validity ranges) and improved validity mask range in Microwindows files

Delivered binary files:
MIP_MW2_AX_160603_bin
MIP_MW2_AX_V3.1_CD_bin
MIP_OM2_AX_160603_bin


V3.2 delivered on 31 07 2003
Microwindows, Occupation Matrices, PS2 for improved convergence criteria
Delivered binary files:
MIP_CS2_AX_V3.2
MIP_IG2_AX_V3.2
MIP_MW2_AX_V3.2_CD
MIP_MW2_AX_V3.2_noCD
MIP_OM2_AX_V3.2
MIP_PI2_AX_V3.2
MIP_PS2_AX_V3.2
MIP_SP2_AX_V3.2


V3.3 delivered on 08 08 2003
Short-term bug fix for PS2 (based on PS2 from V3.2)
Delivered binary file:
MIP_PS2_AX_V3.3_bin


V3.4 delivered on 29 08 2003
In file MW2 threshold for cloud filtering detection below 11 km set
to the value used above 11 km instead of the original -999.000.
Distinction between NRT and Off-line analysis: two sets of aux data are
provided:
NRT:old convergence criteria, nominal altitude range, short term ILS bug
correction
Off-line: new convergence criteria,
altitude range extended from 6 to 68 km, short term ILS bug correction
Delivered binary files:

NRT:         MIP_OM2_AX_160603_bin
             MIP_PS2_AX_NRT_bin
             MIP_CS2_AX_feb03_new_bin
             MIP_MW2_AX_V3.4
             MIP_PI2_AXV___20000101_000000_20000101_000000_20060101_000000
             MIP_SP2_AX_feb03_bin
Off-line:    MIP_OM2_AX_V3.2_030703_bin
             MIP_PS2_AX_V3.3_bin
             MIP_CS2_AX_feb03_new_bin
             MIP_MW2_AX_V3.4
             MIP_PI2_AXV___20000101_000000_20000101_000000_20060101_000000
             MIP_SP2_AX_feb03_bin

V3.5 delivered on 26 Sept 2003
Introduced PT error propagation matrix in OMs for Off-line processor.

Delivered binary files:
MIP_OM2_AX_V3.5_offline_pterror

V3.6 delivered on 20 October 2003
Increased dimension of some vectors (necessary for off-line
processor, since extension of the retrieval range implies an
increased number of geometries and levels, but safe also for NRT processor)
Delivered binary files:
MIP_PS2_AX_NRT_V3.6
MIP_PS2_AX_offline_V3.6