Skip to main content
Article thumbnail
Location of Repository

Validation of version-4.61 methane and nitrous oxide observed by MIPAS

By Sébastien Payan, Claude C. Camy-Peyret, Hermann Oelhaf, Gerald Wetzel, Guido Maucher, Corneli Keim, Michel Pirre, Nathalie Huret, Andreas Engel, C.-Michael Volk, Harry Kuellmann, Jayanarayanan Kuttippurath, Ugo Cortesi, Giovanni Bianchini, Francesco Mencaraglia, Piera Raspollini, Gianluca Redaelli, Corinne Vigouroux, Martine De Mazière, Sabine Mikuteit, Thomas Blumenstock, Voltaire Velazco, Justus Notholt, Emmanuel Mahieu, Pierre Duchatelet, Dan Smale, Stephen Wood, Nicholas Jones, Chiara Piccolo, Vivienne Payne, Astrid Bracher, Norbert Glatthor, Gabriele Stiller, Katja Grunow, Pascal Jeseck, Yao Te and Andre Butz

Abstract

The ENVISAT validation programme for the atmospheric instruments MIPAS, SCIAMACHY and GOMOS is based on a number of balloon-borne, aircraft, satellite and ground-based correlative measurements. In particular the activities of validation scientists were coordinated by ESA within the ENVISAT Stratospheric Aircraft and Balloon Campaign or ESABC. As part of a series of similar papers on other species [this issue] and in parallel to the contribution of the individual validation teams, the present paper provides a synthesis of comparisons performed between MIPAS CH4 and N2O profiles produced by the current ESA operational software (Instrument Processing Facility version 4.61 or IPF v4.61, full resolution MIPAS data covering the period 9 July 2002 to 26 March 2004) and correlative measurements obtained from balloon and aircraft experiments as well as from satellite sensors or from ground-based instruments. In the middle stratosphere, no significant bias is observed between MIPAS and correlative measurements, and MIPAS is providing a very consistent and global picture of the distribution of CH4 and N2O in this region. In average, the MIPAS CH4 values show a small positive bias in the lower stratosphere of about 5%. A similar situation is observed for N2O with a positive bias of 4%. In the lower stratosphere/upper troposphere (UT/LS) the individual used MIPAS data version 4.61 still exhibits some unphysical oscillations in individual CH4 and N2O profiles caused by the processing algorithm (with almost no regularization). Taking these problems into account, the MIPAS CH4 and N2O profiles are behaving as expected from the internal error estimation of IPF v4.61 and the estimated errors of the correlative measurements

Topics: ddc:550
Year: 2009
OAI identifier: oai:publikationen.ub.uni-frankfurt.de:6248

Suggested articles

Citations

  1. (2005). 4-D comparison method to study the NOy partitioning in summer polar stratosphere – Influence of aerosol burden,
  2. (2003). A blind test retrieval experiment for infrared limb emission spectrometry,
  3. (1995). A.: ASUR-an airborne SIS receiver for atmospheric measurements of tracegases at 625 to 760GHz,
  4. (2002). An overview of the Odin atmospheric mission,
  5. (2005). Atmospheric Chemistry Experiment (ACE): Mission overview,
  6. (1995). Balloon-borne Fourier transform spectroscopy formeasurementsofatmospherictracegases, Spectrochim.Acta, 51A, 1143–1152,
  7. (2007). before and after assimilation in BASCOE,
  8. (2007). Characterization of MIPAS elevation pointing,
  9. (2009). Correlations of stratospheric abundances of CH4 Atmos.
  10. (1998). Correlations of stratospheric abundances of NOy, O3, N2O and CH4 derived from ATMOS measurements,
  11. (2002). Correlative Measurements of Selected Molecules over the Mediterranean, Region,
  12. (2004). Design and characterization of the balloon-borne Michelson Interferometer for Passive Atmospheric Sounding (MIPAS-B2),
  13. (1992). Design of a MIPAS instrument for high altitude aircraft,
  14. (1999). Determination of the amount of water vapor entering the stratosphere based on Halogen Occultation Experiment (HALOE)
  15. (1999). Diurnal and nocturnal distribution of stratospheric NO2 from solar and stellar occultation measurements in the Arctic vortex: Comparison with models and ILAS satellite measurements,
  16. (2002). Evidence of scattering of tropospheric radiation by PSCs in mid-IR limb emission spectra: MIPAS-B observations and KOPRA simulations,
  17. (2006). Intercomparison and validation of ILAS-II version 1.4 target parameters with MIPAS-B measurements,
  18. (2003). Intercomparison of remote sounding instruments,
  19. (2004). Intercomparison of Retrieval Codes Used for the Analysis of High-Resolution,
  20. (2000). Inversion von Spurengasprofilen aus hochaufgel¨ osten bodengebundenen FTIR-Messungen in absorption, Dissertation,
  21. (2000). K.: An airborne submm radiometer for the observation of stratospheric trace gases, in: Microwave Radiometry and Remote Sensing of the Earth’s Surface and Atmosphere, edited by:
  22. (1998). Lef` evre, F.: First direct simultaneous HCl and ClONO2 profile measurements in the Artic vortex,
  23. (2006). Longterm changes of methane and hydrogen in the stratosphere in the period 1978–2003 and their impact on the abundance of stratospheric water vapor,
  24. (2002). Microwindow selection www.atmos-chem-phys.net/9/413/2009/ Atmos.
  25. (2002). MIPAS inflight calibration and processor validation,
  26. (2006). MIPAS level 2 operational analysis,
  27. (2008). MIPAS: an instrument for atmospheric and climate research,
  28. (2005). Odin/SMR limb observations www.atmos-chem-phys.net/9/413/2009/
  29. (1996). On the assessment and uncertainty of atmospheric trace gas burden measurements with high resolution infrared solar occultation spectra from space by the ATMOS experiment,
  30. (2006). On the vertical structure of the stratosphere at midlatitudes during the first stage of the polar vortex formation and in the polar region in the presence of a large mesospheric descent,
  31. (2002). Ozone depletion observed by the Airborne Submillimeter Radiometer (ASUR) during the Arctic winter 1999/2000,
  32. (1998). Part II: Interface to retrieval applications,
  33. (2007). Precision validation of MIPAS-Envisat products,
  34. (2002). Quantification of the transport of chemical constituents from the polar vortex to midlatitudes in the lower stratosphere using the high-resolution advection model MIMOSA and effective diffusivity,
  35. (2005). Regridding of remote soundings: Formulation and application to ozone profile comparison,
  36. (1996). Remote sensing of vertical profiles of atmospheric trace constituents with MIPAS limb emission spectrometers,
  37. (1976). Retrieval of Atmospheric Temperature and Composition from Remote Measurements of Thermal Radiation,
  38. (2005). Retrievals for the atmospheric chemistry experiment Fourier-transform spectrometer,
  39. (2004). SAFIREA: optimised instrument, configuration and new assessment of spectroscopic performances,
  40. (2005). Sensitivity of trace gas abundances retrievals from infrared limb emission spectra to simplifying approximations in radiative transfer modelling,
  41. (1995). Spectroscopic study of the seasonalvariationofcarbonmonoxideverticaldistributionabove Kitt Peak,
  42. (2005). SPIRALE: A multispecies in situ balloon-borne experiment with six tunable diode laser spectrometers,
  43. (2005). Study of stratospheric composition using airborne submillimeter radiometry and a chemical transport model,
  44. (2004). The HITRAN
  45. (2001). The HITRAN molecular spectroscopic database : Edition of 2000 including updates through
  46. (2003). The ODIN satellite – I. Radiometer design and test,
  47. (1996). ThetotalhydrogenbudgetintheArcticwinterstratosphere during the European Arctic Stratospheric Ozone Experiment,
  48. (1996). Validation of Halogen Occultation Experiment CH4 measurements from the UARS,
  49. (2007). Validation of the Aura Microwave Limb Sounder middle atmosphere water vapor and nitrous oxide measurements,

To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.