MIPAS/Envisat data for studies within ACAM

MIPAS ground tracks — Three-days global coverage of MIPAS observations

Point of contact

Gabriele Stiller and Thomas von Clarmann

Access to IMK/IAA-generated MIPAS/Envisat level 2 data

See www.imk-asf.kit.edu/english/308.php (registration and signature of data protocol is requested).

Data are provided as ascii, netcdf or idlsave files per trace gas and day, along with the geolocations of the profiles, and profiles of altitude assignment, temperature, pressure, measurement uncertainty, altitude resolution and diagonal of averaging kernel.

Full averaging kernels and error covariance matrices can be provided on request. Full error estimates are available for examples only. The vertical profiles are provided on a constant altitude grid with 1-2 km grid width for the altitude range 0 - 120 km. Filter criteria as described on the web site need to be applied:

Visibility flag (z) = 1
Diagonal element of the averaging kernel (z) > 0.03

For some applications it is important that some trace species are retrieved as ln(vmr); this is relevant in particular for averaging and for application of the averaging kernels. Please contact the data providers in case of questions!

MIPAS CO at 170hPa — CO field constructed from MIPAS observations of 9-11 September 2003 by distance-weighted averaging at 170 hPa (Funke et al., 2009)

Single profile data are available for a number of species relevant for monsoon studies: Temperature, H2O, O3, VOCs (C2H6, C2H2), pollutants (CO, HCN, PAN, ...), sulfur species (SO2, COS, H2SO4 aerosols), and others (full list is available here). Zonally or regionally averaged data are available for SO2 (above 25 km), BrONO2, and NH3.

References

For MIPAS data (data products or scientific studies) in general: www.imk-asf.kit.edu/english/298.php

Selected publications relevant to ACAM