Oxford MIPAS meeting#85
25 Oct 05

Present

Oxford: Alastair Burgess, Anu Dudhia, Jane Hurley, Chiara Piccolo, Joanne Walker, Claire Waymark.
RAL: Alison Waterfall

Instrument Status [Prev][Next]

Now 'resting'. Switched off on 17Oct following end of S.France balloon campaign. Due to be switched back on for MA/UA mode 29Oct.

Some details on the Envisat Web-Site including Instrument Availability web-site
Latest version of Mission Planning Document covering 1 Jan 05 to 14 Nov 05: [.xls] [.html]
Mission_Plan_V4.2.pdf (15JUL05), describing various modes and overall strategy.
Table_4_V4.3.pdf (08OCT05) overall plan until end of 2005.

Bimonthly Report (AB) [Next]

The MIPAS Bimonthly report for May-Jun 2005 has been released

MIPAS_MR_20050501_20050630.pdf MIPAS BiMonthly Report (May/Jun05) (PDF File)

Contains useful summaries of instrument availability and software versions

L1 Data [Prev] [Next]

[BADC Archive of reprocessed L1B Data]

L1B data (as well as L2) should now also be available from ESA ftp site ftp-ops.de.envisat.esa.int

HiRDLS Comparisons (CW) [Prev][Next]

Comparing HiRDLS retrievals with locally-retrieved MIPAS profiles for 28th January 2005 and 1st March 2005.

Now added MIPAS retrievals of F11 and F12

N2O5 (JW) [Prev][Next]

N2O5 is retrieved with fairly poor precision using the standard MIPAS microwindow approach, thought to be due to retrieving both continuum and N2O5 in each microwindow. Investigating the following error analyses:

Retrieve only N2O5
Retrieve N2O5 plus single continuum and offset across whole band
Retrieve N2O5 plus independent continuum and offset in each 3cm-1 microwindow (simulating 'operational' approach).

Conclusion is that significantly improved precision is obtainable for N2O5 if a single continuum profile is fitted across all microwindows. Local retrieval code MORSE will have to be adapted to be able to perform this.

Aura Science Team Meeting (Nov 8-10) [Prev][Next]

Web Page

Agenda (PDF File) distributed 25OCT05

Participants from Oxford MIPAS group:

Chiara Piccolo, comparing MIPAS and TES limb measurements pT, H2O and O3
Claire Waymark, comparing MIPAS and HIRDLS
Joanne Walker, comparing MIPAS and MLS CO measurements
Jane Hurley, attending but not presenting any results
Alison Waterfall (RAL) also attending

All using MIPAS 2RR data from 2005 rather than Off Line products (so no direct connection with MIPAS validation groups).

TES (CP) [Prev][Next]

Selecting dedicated microwindows @0.0625cm^-1 resolution for retrieval of pT + H2O + O3 from TES limb spectra.

Currently generated error and Jacobian spectra.

Spectroscopic Data (JH) [Prev][Next]

Now completed checks comparing radiance calculations for each molecule using v3.1 and v3.2 of the MIPAS spectroscopic databases.

Differences observed for: H2O, NO, HNO3, H2O2, NH3, OCS, SF6 and ClONO2
Main conclusion is that the differences are consistent with the documented changes.
Draft Tech Note (25 Oct 05)

2RR Microwindows (ie 0.0625cm^-1 resln) (AD) [Prev][Next]

Selecting microwindows for new nominal mode operations which employ floating altitude grid

CFC-11 now completed, together with preliminary (LTE) CO microwindows.
Now started recalculating LUTs for all '300' series microwindows using v3.2 spectroscopic database, starting with pT microwindows.

RAL Work (AW) [Prev] [Next]

Taking another look at retrievals of H2O and O3 in the UTLS region from the original high-resolution data.

CO Retrievals (JW) [Prev][Next]

Started work on retrieving CO assuming LTE (ie only valid for nighttime) from MIPAS 2RR data from 28 Jan and 1st March.

Initial aim is to compare with corresponding MLS data, presenting results at the Aura Science Team meeting

Oxford MIPAS meeting#85 25 Oct 05

Oxford MIPAS meeting#85
25 Oct 05