[en] Within the atmospheric research community, there is a strong interest in integrated datasets, combining data from several instrumentations. This integration is complicated by the different characteristics of the datasets, inherent to the measurement techniques. Here we have compared two carbon monoxide time series (1997 till 2007) acquired at the high-Alpine research station Jungfraujoch (3580 m above sea level), with two well-established measurement techniques, namely in situ surface concentration measurements using Non-Dispersive Infrared Absorption technology (NDIR), and ground-based remote sensing measurements using solar absorption Fourier Transform Infrared spectrometry (FTIR). The profile information available in the FTIR signal allowed us to extract an independent layer with a top height of 7.18 km above sea level, appropriate for comparison with our in situ measurements. We show that, even if both techniques are able to measure free troposphere CO concentrations, the datasets exhibit marked differences in their overall trends (−3.21 ± 0.03 ppb/year for NDIR vs. −0.8 ± 0.4 ppb/year for FTIR). Removing measurements that are polluted by uprising boundary layer air has a strong impact on the NDIR trend (now −2.62 ± 0.03 ppb/year), but its difference with FTIR remains significant. Using the LAGRANTO trajectory model, we show that both measurement techniques are influenced by different source regions and therefore are likely subject to exhibit significant differences in their overall trend behaviour. However the observation that the NDIR-FTIR trend difference is as significant before as after 2001 is at odds with available emission databases which claim a significant Asian CO increase after 2001 only.
Disciplines :
Earth sciences & physical geography
Author, co-author :
Dils, B.
Cui, J.
Henne, S.
Mahieu, Emmanuel ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Groupe infra-rouge de phys. atmosph. et solaire (GIRPAS)
Steinbacher, M.
De Mazière, M.
Language :
English
Title :
1997–2007 CO trend at the high Alpine site Jungfraujoch: a comparison between NDIR surface in situ and FTIR remote sensing observations
Barret, B., De Mazière, M., and Mahieu, E.: Ground-based FTIR measurements of CO from the Jungfraujoch: characterisation and comparison with in situ surface and MOPITT data, Atmos. Chem. Phys., 3, 2217-2223, doi:10.5194/acp-3-2217-2003, 2003.
Clerbaux, C., George, M., Turquety, S., Walker, K. A., Barret, B., Bernath, P., Boone, C., Borsdorff, T., Cammas, J. P., Catoire, V., Coffey, M., Coheur, P.-F., Deeter, M., De Mazière, M., Drummond, J., Duchatelet, P., Dupuy, E., de Zafra, R., Eddounia, F., Edwards, D. P., Emmons, L., Funke, B., Gille, J., Griffith, D. W. T., Hannigan, J., Hase, F., Höpfner, M., Jones, N., Kagawa, A., Kasai, Y., Kramer, I., Le Flochmöen, E., Livesey, N. J., López-Puertas, M., Luo, M., Mahieu, E., Murtagh, D., Nédé lec, P., Pazmino, A., Pumphrey, H., Ricaud, P., Rinsland, C. P., Robert, C., Schneider, M., Senten, C., Stiller, G., Strandberg, A., Strong, K., Sussmann, R., Thouret, V., Urban, J., andWiacek, A.: CO measurements from the ACE-FTS satellite instrument: data analysis and validation using ground-based, airborne and spaceborne observations, Atmos. Chem. Phys., 8, 2569-2594, doi:10.5194/acp-8-2569-2008, 2008.
Cleveland, W. S.: Robust Locally Weighted Regression and Smoothing Scatterplots, J. Am. Stat. Assoc., 74, 829-836, 1979.
Cui, J., Pandey Deolal, S., Sprenger, M., Henne, S., Staehelin, J., Steinbacher, M., and Nédélec, P.: Free troposheric ozone changes over Europe as observed at Jungfraujoch (1990-2008): An analysis based on backward trajectories, J. Geophys. Res., 116, D10304, doi:10.1029/2010JD015154, 2011.
Daniel, J. S. and Solomon, S.: On the climate forcing of carbon monoxide, J. Geophys. Res. Atmos., 103, 13249-13260, 1998. (Pubitemid 28469507)
Deeter, M. N., Emmons, L. K., Francis, G. L., Edwards, D. P., Gille, J. C., Warner, J. X., Khattatov, B., Ziskin, D., Lamarque, J.-F., Ho, S.-P., Yudin, V., Attie, J.-L., Packman, D., Chen, J., Mao, D., and Drummond, J. R.: Operational carbon monoxide retrieval algorithm and selected results for the MOPITT instrument, J. Geophys. Res., 108, 4399, doi:10.1029/2002JD003186, 2003.
Deeter, M. N., Edwards, D. P., Gille, J. C., Emmons, L. K., Francis, G., Ho, S. P., Mao, D., Masters, D., Worden, H., Drummond, J. R., and Novelli, P. C.: The MOPITT version 4 CO product: Algorithm enhancements, validation, and long-term stability, J. Geophys. Res. Atmos., 115, D07306, doi:10.1029/ 2009JD013005, 2010.
Derwent, R., Simmonds, P., ÖDoherty, S., Ciais, P., and Ryall, D.: European source strengths and northern hemisphere baseline concentrations of radiatively active trace gases at Mace Head, Ireland, Atmos. Environ., 32, 3703-3715, 1998. (Pubitemid 28448603)
De Wekker, S. F. J., Steyn, D. G., and Nyeki, S.: A comparison of aerosol layer and convective boundary layer structure over a mountain range during 97, Bound.-Layer Meteor., 113, 249-271, 2004. (Pubitemid 39159983)
Folini, D., Kaufmann, P., Ubl, S., and Henne, S.: Region of influence of 13 remote European measurement sites based on modeled carbon monoxide mixing ratios, J. Geophys. Res. Atmos., 114, D08307, doi:10.1029/2008JD011125, 2009.
Forrer, J., Ruttimann, R., Schneiter, D., Fischer, A., Buchmann, B., and Hofer, P.: Variability of trace gases at the high-Alpine site Jungfraujoch caused by meteorological transport processes, J. Geophys. Res. Atmos., 105, 12241-12251, 2000.
Gilge, S., Plass-Duelmer, C., Fricke,W., Kaiser, A., Ries, L., Buchmann, B., and Steinbacher, M.: Ozone, carbon monoxide and nitrogen oxides time series at four alpine GAW mountain stations in central Europe, Atmos. Chem. Phys., 10, 12295-12316, doi:10.5194/acp-10-12295-2010, 2010.
Hase, F., Blumenstock, T., and Paton-Walsh, C.: Analysis of the instrumental line shape of high-resolution Fourier transform IR spectrometers with gas cell measurements and new retrieval software, Appl. Optics, 38, 3417-3422, 1999. (Pubitemid 129568232)
Henne, S., Furger, M., Nyeki, S., Steinbacher, M., Neininger, B., de Wekker, S. F. J., Dommen, J., Spichtinger, N., Stohl, A., and Prévôt, A. S. H.: Quantification of topographic venting of boundary layer air to the free troposphere, Atmos. Chem. Phys., 4, 497-509, doi:10.5194/acp-4-497-2004, 2004. (Pubitemid 38964713)
Henne, S., Brunner, D., Folini, D., Solberg, S., Klausen, J., and Buchmann, B.: Assessment of parameters describing representativeness of air quality in-situ measurement sites, Atmos. Chem. Phys., 10, 3561-3581, doi:10.5194/acp-10-3561-2010, 2010.
Holloway, T., Levy, H., and Kasibhatla, P.: Global distribution of carbon monoxide, J. Geophys. Res. Atmos., 105, 12123-12147, 2000.
Levy, H., Kasibhatla, P. S., Moxim, W. J., Klonecki, A. A., Hirsch, A. I., Oltmans, S. J., and Chameides,W. L.: The global impact of human activity on tropospheric ozone, Geophys. Res. Lett., 24, 791-794, 1997.
Logan, J. A., Prather, M. J.,Wofsy, S. C., and McElroy, M. B.: Tropospheric Chemistry - a Global Perspective, J. Geophys. Res.- Oceans and Atmospheres, 86, 7210-7254, 1981.
Luterbacher, J., Dietrich, D., Xoplaki, E., Grosjean, M., and Wanner, H.: European seasonal and annual temperature variability, trends, and extremes since 1500, Science, 303, 1499-1503, 2004. (Pubitemid 38314415)
Novelli, P. C., Masarie, K. A., and Lang, P. M.: Distributions and recent changes of carbon monoxide in the lower troposphere, J. Geophys. Res. Atmos., 103, 19015-19033, 1998. (Pubitemid 128700018)
Nyeki, S., Kalberer, M., Colbeck, I., De Wekker, S., Furger, M., G̈aggeler, H.W., Kossmann, M., Lugauer, M., Steyn, D., Weingartner, E., Wirth, M., and Baltensperger, U. : Convective Boundary Layer Evolution to 4 km als over High-Alpine Terrain: Airborne Lidar Observations in the Alps, Geophys. Res. Lett., 27, 689-692, 2000.
ÖDoherty, S., Simmonds, P., Cunnold, D., Wang, H., Sturrock, G., Fraser, P., Ryall, D., Derwent, R., Weiss, R., Salameh, P., Miller, B., and Prinn, R.: In situ chloroform measurements at Advanced- Global Atmospheric Gases Experiment atmospheric research stations from 1994 to 1998, J. Geophys. Res., 106, 20429-20444, 2001.
Ohara, T., Akimoto, H., Kurokawa, J., Horii, N., Yamaji, K., Yan, X., and Hayasaka, T.: An Asian emission inventory of anthropogenic emission sources for the period 1980-2020, Atmos. Chem. Phys., 7, 4419-4444, doi:10.5194/acp-7-4419- 2007, 2007. (Pubitemid 47326583)
Pfister, G., Petron, G., Emmons, L. K., Gille, J. C., Edwards, D. P., Lamarque, J. F., Attie, J. L., Granier, C., and Novelli, P. C.: Evaluation of CO simulations and the analysis of the CO budget for Europe, J. Geophys. Res. Atmos., 109, D19304, doi:10.1029/2004JD004691, 2004. (Pubitemid 39660684)
Reimann, S., Vollmer, M. K., Folini, D., Steinbacher, M., Hill, M., Buchmann, B., Zander, R., and Mahieu, E.: Observations of Anthropogenic Halocarbons at the High-Alpine site of Jungfraujoch for assessment of trends and European sources, Sci. Tot. Environ., 391, 224-231, 2008.
Rodgers, C. D.: Retrieval of atmospheric temperature and composition from remote measurements of thermal radiation, Rev. Geophys. Space Phys., 14(4), 609-624, 1976.
Rodgers, C. D.: Characterisation and error analysis of profiles retrieved from remote sounding measurements, J. Geophys. Res., 95, 5587-5595, 1990.
Rodgers, C. D.: Inverse methods for atmospheric sounding: Theory and Practice, Series on Atmospheric, Oceanic and Planetary Physics - Vol. 2, World Scientific, 2000.
Rothman, L. S., Barbe, A., Benner, D. C., 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 2000 including Updates through 2001, J. Quant. Spectrosc. Radiat. Transfer, 82, 5-44, 2003. (Pubitemid 37084481)
Ruckstuhl, A. F., Henne, S., Reimann, S., Steinbacher, M., Buchmann, B., and Hueglin, C.: Robust extraction of baseline signal of atmospheric trace species using local regression, Atmos. Meas. Tech. Discuss., 3, 5589-5612, doi:10.5194/amtd-3-5589- 2010, 2010.
Simmonds, P. G., Manning, A. J., Derwent, R. G., Ciais, P., Ramonet, M., Kazan, V., and Ryall, D.:. A burning question. Can recent growth rate anomalies in greenhouse gases be attributed to large-scale biomass burning events?, Atmos. Environ., 39, 2513-2517, 2005. (Pubitemid 40602552)
Tressol, M., Ordonez, C., Zbinden, R., Brioude, J., Thouret, V., Mari, C., Nedelec, P., Cammas, J.-P., Smit, H., Patz, H.-W., and Volz-Thomas, A.: Air pollution during the 2003 European heat wave as seen by MOZAIC airliners, Atmos. Chem. Phys., 8, 2133-2150, doi:10.5194/acp-8-2133-2008, 2008.
van derWerf, G. R., Randerson, J. T., Giglio L., Collatz, G. J., Mu, M., Kasibhatla, P. S., Morton, D. C., DeFries, R. S., Jin, Y., and van Leeuwen, T. T.: Global fire emissions and the contribution of deforestation, savanna, forest, agricultural, and peat fires (1997-2009), Atmos. Chem. Phys. 10, 11707-11735 doi:10.5194/acp- 10-11707-2010, 2010.
Wernli, H. and Davies, H. C.: A Lagrangian-based analysis of extratropical cyclones. I: The method and some applications., Q. J. Roy. Meteorol. Soc., 123, 467-489, 1997.
Wild, O. and Prather, M. J.: Excitation of the primary tropospheric chemical mode in a global three-dimensional model, J. Geophys. Res. Atmos., 105, 24647-24660, 2000.
World Meteorological Organisation: Guide to Meteorological Instruments and Methods of Observations, WMO-No. 8 (Seventh edition), 2008.
Yurganov, L. N., Blumenstock, T., Grechko, E. I., Hase, F., Hyer, E. J., Kasischke, E. S., Koike, M., Kondo, Y., Kramer, I., Leung, F.-Y., Mahieu, E., Mellqvist, J., Notholt, J., Novelli, P. C., Rinsland, C. P., Scheel, H. E., Shultz, A., Strandberg, A., Sussmann, R., Tanimoto, H., Velazco, V., Zander, R., and Zhao, Y.: A Quantitative Assessment of the 1998 Carbon Monoxide Emission Anomaly in the Northern Hemisphere Based on Total Column and Surface Concentration Measurements, J. Geophys. Res., 109(D15), D15305, doi:10.1029/2004JD004559, 2004. (Pubitemid 39411963)
Yurganov, L. N., Duchatelet, P., Dzhola, A. V., Edwards, D. P., Hase, F., Kramer, I., Mahieu, E., Mellqvist, J., Notholt, J., Novelli, P. C., Rockmann, A., Scheel, H. E., Schneider, M., Schulz, A., Strandberg, A., Sussmann, R., Tanimoto, H., Velazco, V., Drummond, J. R., and Gille, J. C.: Increased Northern Hemispheric carbon monoxide burden in the troposphere in 2002 and 2003 detected from the ground and from space, Atmos. Chem. Phys., 5, 563-573, doi:10.5194/acp-5-563-2005, 2005. (Pubitemid 40405305)
Zander, R., Demoulin, P., Ehhalt, D. H., Schmidt, U., and Rinsland, C. P.: Secular Increase of the Total Vertical Column Abundance of Carbon-Monoxide above Central-Europe since 1950, J. Geophys. Res. Atmos., 94, 11021-11028, 1989.
Zander, R., Mahieu, E., Demoulin, P., Duchatelet, P., Roland, G., Servais, C., Maziere, M. D., Reimann, S., and Rinsland, C. P.: Our changing atmosphere: Evidence based on long-term infrared solar observations at the Jungfraujoch since 1950, Sci. Total Environ., 391, 184-195, 2008.
Zellweger, C., Forrer, J., Hofer, P., Nyeki, S., Schwarzenbach, B., Weingartner, E., Ammann, M., and Baltensperger, U.: Partitioning of reactive nitrogen (NOy) and dependence on meteorological conditions in the lower free troposphere, Atmos. Chem. Phys., 3, 779-796, doi:10.5194/acp-3-779-2003, 2003.
Zellweger, C., Hüglin, C., Klausen, J., Steinbacher, M., Vollmer, M., and Buchmann, B.: Inter-comparison of four different carbon monoxide measurement techniques and evaluation of the long-term carbon monoxide time series of Jungfraujoch, Atmos. Chem. Phys., 9, 3491-3503, doi:10.5194/acp-9- 3491-2009, 2009.
Zurbenko, I. G.: The spectral Analysis of Time Series. North- Holland, 248 pp., 1986.