Validation of revised methane and nitrous oxide profiles from MIPAS-ENVISAT
Journal article, 2016

Improved versions of CH4 and N2O profiles derived at the Institute of Meteorology and Climate Research and Instituto de AstrofĂ­sica de AndalucĂ­a (CSIC) from spectra measured by the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) have become available. For the MIPAS full-resolution period (2002-2004) these are V5H-CH4-21 and V5H-N2O-21 and for the reduced-resolution period (2005-2012) these are V5R-CH4-224, V5R-CH4-225, V5R-N2O-224 and V5R-N2O-225. Here, we compare CH4 profiles to those measured by the Fourier Transform Spectrometer on board of the Atmospheric Chemistry Experiment (ACE-FTS), the HALogen Occultation Experiment (HALOE) and the Scanning Imaging Absorption Spectrometer for Atmospheric CHartographY (SCIAMACHY), to the Global Cooperative Air Sampling Network (GCASN) surface data. We find the MIPAS CH4 profiles below 25 km to be typically higher of the order of 0.1 ppmv for both measurement periods. N2O profiles are compared to those measured by ACE-FTS, the Microwave Limb Sounder on board of the Aura satellite (Aura-MLS) and the Sub-millimetre Radiometer on board of the Odin satellite (Odin-SMR) as well as to the Halocarbons and other Atmospheric Trace Species Group (HATS) surface data. The mixing ratios of the satellite instruments agree well with each other for the full-resolution period. For the reduced-resolution period, MIPAS produces similar values as Odin-SMR, but higher values than ACE-FTS and HATS. Below 27 km, the MIPAS profiles show higher mixing ratios than Aura-MLS, and lower values between 27 and 41 km. Cross-comparisons between the two MIPAS measurement periods show that they generally agree quite well, but, especially for CH4, the reduced-resolution period seems to produce slightly higher mixing ratios than the full-resolution data.


J. Plieninger

Karlsruhe Institute of Technology (KIT)

A. Laeng

Karlsruhe Institute of Technology (KIT)

S. Lossow

Karlsruhe Institute of Technology (KIT)

T. von Clarmann

Karlsruhe Institute of Technology (KIT)

G.P. Stiller

Karlsruhe Institute of Technology (KIT)

S. Kellmann

Karlsruhe Institute of Technology (KIT)

A. Linden

Karlsruhe Institute of Technology (KIT)

M. Kiefer

Karlsruhe Institute of Technology (KIT)

K.A. Walker

University of Toronto

S. Noël

Universität Bremen

M.E. Hervig

GATS, Inc.

M. McHugh

Science and Technology Corporation, Hampton

A. Lambert

Jet Propulsion Laboratory, California Institute of Technology

Joachim Urban

Chalmers, Earth and Space Sciences, Global Environmental Measurements and Modelling

J.W. Elkins

National Oceanic and Atmospheric Administration

Donal Murtagh

Chalmers, Earth and Space Sciences, Global Environmental Measurements and Modelling

Atmospheric Measurement Techniques

1867-1381 (ISSN) 1867-8548 (eISSN)

Vol. 9 2 765-779

Subject Categories

Earth and Related Environmental Sciences



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9/6/2018 1