References

ACP

Atmospheric Chemistry and Physics

ACP

1680-7324

Copernicus GmbH

Göttingen, Germany

10.5194/acp-7-377-2007

Comparisons between ground-based FTIR and MIPAS N2O and HNO3 profiles before and after assimilation in BASCOE

Vigouroux

¹ De Mazière

¹ Errera

¹ Chabrillat

¹ Mahieu

² Duchatelet

² Wood

³ Smale

³ Mikuteit

⁴ Blumenstock

⁴ Hase

⁴ Jones

⁵

Belgian Institute for Space Aeronomy (BIRA-IASB), Brussels, Belgium

Institut d'Astrophysique et de Géophysique, University of Liège (ULg), Liège, Belgium

National Institute for Water and Atmospheric Research (NIWA), Lauder, Otago, New-Zealand

Institute of Meteorology and Climate Research (IMK), Forschungszentrum Karlsruhe and University of Karlsruhe, Karlsruhe, Germany

University of Wollongong, Wollongong, Australia

23 01 2007

7 2 377 396

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Within the framework of the Network for Detection of Atmospheric Composition Change (NDACC), regular ground-based Fourier transform infrared (FTIR) measurements of many species are performed at several locations. Inversion schemes provide vertical profile information and characterization of the retrieved products which are therefore relevant for contributing to the validation of MIPAS profiles in the stratosphere and upper troposphere. We have focused on the species HNO3 and N2O at 5 NDACC-sites distributed in both hemispheres, i.e., Jungfraujoch (46.5° N) and Kiruna (68° N) for the northern hemisphere, and Wollongong (34° S), Lauder (45° S) and Arrival Heights (78° S) for the southern hemisphere. These ground-based data have been compared with MIPAS offline profiles (v4.61) for the year 2003, collocated within 1000 km around the stations, in the lower to middle stratosphere. To get around the spatial collocation problem, comparisons have also been made between the same ground-based FTIR data and the corresponding profiles resulting from the stratospheric 4D-VAR data assimilation system BASCOE constrained by MIPAS data. This paper discusses the results of the comparisons and the usefullness of using BASCOE profiles as proxies for MIPAS data. It shows good agreement between MIPAS and FTIR N2O partial columns: the biases are below 5% for all the stations and the standard deviations are below 7% for the three mid-latitude stations, and below 10% for the high latitude ones. The comparisons with BASCOE partial columns give standard deviations below 4% for the mid-latitude stations to less than 8% for the high latitude ones. After making some corrections to take into account the known bias due to the use of different spectroscopic parameters, the comparisons of HNO3 partial columns show biases below 3% and standard deviations below 15% for all the stations except Arrival Heights (bias of 5%, standard deviation of 21%). The results for this species, which has a larger spatial variability, highlight the necessity of defining appropriate collocation criteria and of accounting for the spread of the observed airmasses. BASCOE appears to have more deficiencies in producing proxies of MIPAS HNO3 profiles compared to N2O, but the obtained standard deviation of less than 10% between BASCOE and FTIR is reasonable. Similar results on profiles comparisons are also shown in the paper, in addition to partial column ones.

References 1

Calisesi Y., Soebijanta V. T., and van Oss R.: Regridding of remote soundings: Formulation and application to ozone profile comparison, J. Geophys. Res., 110, D23306, doi:10.1029/2005JD006122, 2005.

Camy-Peyret, C., Dufour, G., Payan, S., Oelhaf, H., Wetzel, G., Stiller, G., Blumenstock, T., Blom, C. E., Guld, T., Glatthor, N., Engel, A., Pirre, M., Catoire, V., Moreau, G., De Mazière, M., Vigouroux, C., Mahieu, E., Cortesi, U., and Mencaraglia, F.: Validation of MIPAS \chemN_2O profiles by stratospheric balloon, aircraft and ground based measurements, Proceedings of the Second Workshop on the Atmospheric Chemistry Validation of Envisat (ACVE-2), Frascati, 3–7 May 2004, ESA Special Publication SP-562, August 2004.

Daerden, F., Larsen, N., Chabrillat, S., Errera, Q., Bonjean, S., Fonteyn,. D., Hoppel, K., and Fromm, M.: A 3D-CTM with detailed online PSC-microphysics: analysis of the Antarctic winter 2003 by comparison with satellite observations, Atmos. Chem. Phys. Discuss., 6, 8511–8552, 2006.

Errera, Q. and Fonteyn, D.: Four-dimensional variational chemical assimilation of CRISTA stratospheric measurements, J. Geophys. Res., 106, 12 253–12 265, 2001.

ESA: Envisat-MIPAS, An instrument for Atmospheric Chemistry and Climate Research, SP-1229, published by ESA Publications Division, ESTEC, P.O Box 299, 2200 AG Noordwijk, The Netherlands, March 2000.

ESA: Proceedings of the Second Workshop on the Atmospheric Chemistry Validation of Envisat (ACVE-2), Frascati, 3–7 May 2004, ESA Special Publication SP-562, 2004a.

ESA: Envisat-MIPAS Monthly report: March 2004, Technical Note, ENVI-SPPA-EOPG-TN-04-0011, 2004b.

Fischer, H. and Oelhaf, H.: Remote sensing of vertical profiles of atmospheric trace constituents with MIPAS limb-emission spectrometers, Appl. Opt., 35, 2787–2796, 1996.

Flaud, J. M., Piccolo, C., Carli, B., Perrin, A., Coudert, L. H., Teffo, J. L., and Brown, L. R.: Molecular line parameters for the MIPAS (Michelson Interferometer for Passive Atmospheric Sounding) experiment, J. Atmos. Ocean Optics, 16, 172–182, 2003a.

Flaud, J. M., Perrin, A., Orphal, J., Kou, Q., Flaud, P.-M., Dutkiewicz, Z., and Piccolo, C.: New anaylsis of the $\nu_5+\nu_9-\nu_9$ hot band of HNO3, J. Quant. Spectrosc. Radiat. Transfer, 77, 355–364, 2003b.

Flaud, J. M., Brizzi, G., Carlotti, M., Perrin, A., and Ridolfi, M.: MIPAS database: Validation of HNO3 line parameters using MIPAS satellite measurements, Atmos. Chem. Phys., 6, 5037–5048, 2006.

Geer, A. J., Lahoz, W. A., Bekki, S., Bormann, N., Errera, Q., Eskes, H. J., Fonteyn, D., Jackson, D. R., Juckes, M. N., Massart, S., Peuch, V.-H., Rharmili, S., and Segers, A.: The ASSET intercomparison of ozone analyses: method and first results, Atmos. Chem. Phys., 6, 5445–5474, 2006.

Hase, F.: Inversion von Spurengasprofilen aus hochaufgelösten bodengebundenen FTIR-Messungen in absorption. Wissenschaftliche Berichte Forschungszentrum Karlsruhe, FZKA 6512; ISSN 0947-8620, 2000.

Hase, F., Hannigan, J. W., Coffey, M. T., Goldman, A., Höpfner, M., Jones, N. B., Rinsland, C. P., and Wood, S. W.: Intercomparison of retrieval codes used for the analysis of high-resolution, ground-based FTIR measurements, J. Quant. Spectros. Radiat. Transfer, 87, 25-52, 2004.

Hitchman, M. H., McKay, M., and Trepte, C. R.: A climatology of stratospheric aerosol, J. Geophys. Res., 99(D10), 20 689–20 700, doi:10.1029/94JD01525, 1994.

Küll, V., Riese, M., Tie, X., Wiemert, T., Eidmann, G., Offermann, D., and Brasseur, G.: NOy partitioning and aerosol influences in the stratosphere, J. Geophys. Res., 107(D23), 8183, doi:10.1029/2001JD001246, 2002.

Lin, S. and Rood, R. B.: Multidimensional flux–form semi–Lagrangian transport schemes, Mon. Wea. Rev., 124, 2046–2070, 1996.

Meier, A., Toon, G. C., Rinsland, C. P., Goldman, A., and Hase, F.: Spectroscopic Atlas of Atmospheric Microwindows in the middle Infra-Red, IRF Technical Report 048, ISSN 0284-1738 (Institutet för Rymdfysik, Kiruna, Sweden), Appendix E, 2004.

Ménard, R., Cohn, S. E., Chang, L. P., and Lyster, P. M.: Assimilation of Stratospheric Chemical Tracer Observations Using a Kalman Filter. Part I: Formulation, Mon. Wea. Rev., 128, 2654–2671, 2000.

Oelhaf, H., Blumenstock, T., De Mazière, M., Mikuteit, S., Vigouroux, C., Wood, S., Bianchini, G., Baumann, R., Blom, C., Cortesi, U., Liu, G. Y., Schlager, H., Camy-Peyret, C., Catoire, V., Pirre, M., Strong, K., and Wetzel, G.: Validation of MIPAS-ENVISAT version 4.61 \chemHNO_3 operational data by stratospheric balloon, aircraft and ground based measurements, Proceedings of the Second Workshop on the Atmospheric Chemistry Validation of Envisat (ACVE-2), Frascati, 3–7 May 2004, ESA Special Publication SP-562, August 2004.

Pougatchev, N. S. and Rinsland, C. P.: Spectroscopic study of the seasonal variation of carbon monoxide vertical distribution above Kitt Peak., J. Geophys. Res., 100, 1409–1416, 1995.

Pougatchev, N. S., Connor, B. J., and Rinsland, C. P.: Infrared measurements of the ozone vertical distribution above Kitt Peak, J. Geophys. Res., 100, 16 689–16 697, 1995.

Raspollini, P., Belotti, C., Burgess, A., Carli, B., Carlotti, M., Ceccherini, S., Dinelli, B. M., Dudhia, A., Flaud, J.-M., Funke, B., Höpfner, López-Puertas, M., Payne, V., Piccolo, C., Remedios, J. J., Ridolfi, M., and Spang, R.: MIPAS level 2 analysis, Atmos. Chem. Phys., 6, 5605–5630, 2006.

Rinsland, C. P., Jones, N. B., Connor, B. J., Logan, J. A., Pougatchev, N. S., Goldman, A., Murcray, F. J., Stephen, T. M., Pine, A. S., Zander, R., Mahieu, E., and Demoulin, P.: Northern and southern hemisphere ground-based infrared spectroscopic measurements of tropospheric carbon monoxide and ethane, J. Geophys. Res., 103, 28 197–28 217, 1998.

Rodgers, C. D.: Inverse methods for atmospheric sounding: Theory and Practice, Series on Atmospheric, Oceanic and Planetary Physics, Vol. 2, World Scientific Publishing Co., Singapore, 2000.

Rodgers, C. D. and Connor, B. J.: Intercomparison of remote sounding instruments, J. Geophys. Res., 108, 4116–4129, 2003.

Rood, R. B.: Assimilation of stratospheric meteorological and constituent observations: a review, SPARC Newsletter No 25, 31–37, 2005.

Rothman, L. S., Barbe, A., Chris Benner, D., Brown, L. R., Camy-Peyret, C., Carleer, M. R., Chance, K., Clerbaux, C., Dana, V., Devi, V. M., Fayt, A., Flaud, J.-M., Gamache, R. R., Goldman, A., Jacquemart, D., Jucks, K. W., Lafferty, W. J., Mandin, J.-Y., Massie, S. T., Nemtchinov, V., Newnham, D. A., Perrin, A., Rinsland, C. P., Schroeder, J., Smith, K. M., Smith, M. A. H., Tang, K., Toth, R. A., Vander Auwera, J., Varanasi, P., and Yoshino, K.: The HITRAN molecular spectroscopic database: Edition of 2000 including updates through 2001, J. Quant. Spectros. Radiat. Transfer, 82, 5–44, 2003.

von Clarmann, T.: Validation of remotely sensed profiles of atmospheric state variables: strategies and terminology, Atmos. Chem. Phys., 6, 4311–4320, 2006.