Oxford MIPAS meeting#116
17 Apr 07

Present

Instrument Status [Prev] [Next]
MIPAS currently in the middle of a 10day nominal operating sequence (1 day MA, 3 days NOM, 2 days off, 2 days NOM, 2 days off)

March Monthly Report (JH) [Prev] [Next]
Full report obtainable from http://earth.esa.int/pcs/envisat/mipas/reports/monthly/
Summary below.

Precision Validation [Prev]
Paper now published in ACP http://www.atmos-chem-phys.net/7/1915/2007/acp-7-1915-2007.html

Cloud Parameters (JH) [Prev] [Next]
Scheme to retrieve Cloud Top Height, Cloud Top Temperature and Cloud optical thickness.

Mesospheric Retrievals (LMV) [Prev] [Next]
Trying a linear least-squares fit retrieval for pT, O3 and H2O using entire MIPAS bands (screening out lines affected by non-LTE effects and gases other than CO2).

MIPAS/TES Retrievals (CW) [Prev] [Next]
Aim is to combine MIPAS limb measurements of stratospheric O3 with TES nadir-viewing measurements to obtain more information on tropospheric O3 profile (basically how TES was supposed to work before their problems with limb-views)

Stratospheric Trends (AD) [Prev] [Next]
Running our local MIPAS processor MORSE on selected days throughout the MIPAS mission to try and estimate stratospheric trends.
The following days are being processed (BOLD font for days which are now completed)
Mode Dates
FR17 09JUL02 23SEP02 23MAR03 22SEP03 21MAR04
RR17 17SEP04
RR27 28JAN05 21MAR05 16MAY05 10AUG05 12JAN06 13MAR06 25SEP06 14JUN06 04JAN07

Darwin Orbits (AD) [Next]
At the request of H.Sembhi from Leicester, also running MORSE for selected orbits coinciding with the field campaign based at Darwin during Nov/Dec 2005.
Orbits to be processed are:
Date16NOV0522NOV0525NOV0530NOV05 01DEC0501DEC0502DEC0504DEC0505DEC05
Orbit19417 19503 19546 19610 19624 19632 19646 19667 19689

ACPD Papers [Prev] [Next]
Papers selected from the ACPD website for discussion
"Vertical profiles of lightning-produced NO2 enhancements in the upper troposphere observed by OSIRIS"
C. Sioris et al. (published 11.04.2007, open until 06.06.2007)
Introduced by AD.
"Global statistics of liquid water content and effective number density of water clouds over ocean derived from combined CALIPSO and MODIS measurements"
Y. Hu et al. (published 28.03.2007, open until 23.05.2007)
Comments being collected by JH.
"Retrieval of temperature profiles from CHAMP for climate monitoring: intercomparison with Envisat MIPAS and GOMOS and different atmospheric analyses"
A. Gobiet et al. (published 27.02.2007, open until 24.04.2007)
Comments being collected by CP.
"Validation of MIPAS-ENVISAT NO2 operational data"
G. Wetzel et al. (published 02.03.2007, open until 27.04.2007)
Comments being collected by CW.
Other papers with 'MIPAS' in the title in the Open Discussion phase, which may be adopted at a future meeting
" Validation of MIPAS HNO3 operational data"
D. Y. Wang et al. (published 17.04.2007, open until 12.06.2007)
"Bias determination and precision validation of ozone profiles from MIPAS-Envisat retrieved with the IMK-IAA processor"
T. Steck et al. (published 30.03.2007, open until 25.05.2007)

Summary of the March Monthly Report (F. Niro, ESRIN,