Oxford MIPAS meeting#73
05 Apr 05

• [MIPAS_Mission_Planning_2005_DRAFT.xls] (Excel spreadsheet)
• [MIPAS_Mission_Planning_2005_DRAFT.html] (Converted to Web page)

`Where can I find information on where MIPAS will be observing in the next few weeks. I believe these are the overpass tables - are these on the web?'

`ENVISAT instrument future coverage and archived acquisition can be found in the ENVISAT catalogues available at http://envisat.esa.int/services/catalogues.html '

• No change to reprocessed L1B stored at BADC since 18 Jan 05
• Roberta Mantovani continues to distribute L1B spectra for selected orbits from recent (Dec'04/Jan'05) operations reprocessed using updated calibration files.

• Orbits 7020-7025 now available, 7026-7035 to follow

• No data received since 25th Feb 05

• Now retrieving temperature profile (0-10km@1km) jointly with surface temperature and O3 column using 2 microwindows (one in O3 band near 1050cm-1, one in CO2 band near 745cm-1)

• Alastair Burgess
• Anu Dudhia
• Chiara Piccolo
• Joanne Walker
• Claire Waymark

• long correlation length in troposphere for maximum smoothing
• short correlation length in stratosphere to avoid a priori bias at high altitude

• [Plots] showing current best results obtainable for each species
• Random errors seem reasonable for pT (<3K), CH4 (<10%) but rather large for H2O (>30%) and N2O (>30%) - looking for better microwindows which should reduce this
• Starting generating LUTs for 5 pT microwindows so that retrievals can be tested by IFAC

Dear colleagues,

in 2004 ESA has carried out an ENVISAT validation workshop in Frascati. It was a successful meeting and the results were published in proceedings. It was shown that the operational MIPAS data products as generated by ESA are already in good shape but obviously the validation process was not completed.

To my opinion it is necessary to demonstrate the quality of the MIPAS data products in a peer-reviewed journal. In order to reach the objective we should establish several Working Groups who are able to complete the validation process for single MIPAS data products and to write corresponding journal articles. [Attached] you will find a preliminary listing of planned papers/Working Groups. We are still open for contributions of scientists being up to now not on this listing. Each Working Group will have a chairman who will organise the work in this group.

In order to start the procedure I would propose to have a first meeting during the EGU conference in Vienna on 26 April 2005. Due to the fact that there is a session on "The Atmosphere Optimally Sounded by Satellites" on the day before I expect that a considerable number of scientists involved in MIPAS validation is in Vienna on 26 April 2005. It was proposed to me to carry out our meeting outside the conference location in order to save money for the conference registration. How about your opinion on this?

Please respond at your very earliest convenience. I would like to be informed if you will participate in our "workshop" at the EGU meeting, if you are interested to be involved in the preparation of these journal articles, if you have proposals about the procedure to reach this goal and if you have proposals for the inclusion of further scientists.