Ground-based remote sensing of tropospheric water vapour iso
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TitleGround-based remote sensing of tropospheric water vapour isotopologues within the project MUSICAAbstractWithin the project MUSICA (MUlti-platform remote Sensing of Isotopologues for investigating the Cycle of Atmospheric water), long-term tropospheric water vapour isotopologue data records are provided for ten globally distributed ground-based mid-infrared remote sensing stations of the NDACC (Network for the Detection of Atmospheric Composition Change). We present a new method allowing for an extensive and straightforward characterisation of the complex nature of such isotopologue remote sensing datasets. We demonstrate that the MUSICA humidity profiles are representative for most of the troposphere with a vertical resolution ranging from about 2 km (in the lower troposphere) to 8 km (in the upper troposphere) and with an estimated precision of better than 10%. We find that the sensitivity with respect to the isotopologue composition is limited to the lower and middle troposphere, whereby we estimate a precision of about 30‰ for the ratio between the two isotopologues HD16O and H216O. The measurement noise, the applied atmospheric temperature profiles, the uncertainty in the spectral baseline, and the cross-dependence on humidity are the leading error sources. We introduce an a posteriori correction method of the cross-dependence on humidity, and we recommend applying it to isotopologue ratio remote sensing datasets in general. In addition, we present mid-infrared CO2 retrievals and use them for demonstrating the MUSICA network-wide data consistency. In order to indicate the potential of long-term isotopologue remote sensing data if provided with a well-documented quality, we present a climatology and compare it to simulations of an isotope incorporated AGCM (Atmospheric General Circulation Model). We identify differences in the multi-year mean and seasonal cycles that significantly exceed the estimated errors, thereby indicating deficits in the modeled atmospheric water cycle. Copyright 2012 Author(s).AcknowledgementsWe would like to thank the many different technicians, PhD students, post-docs, and scientists from the different research groups that have been involved in the NDACC-FTIR activities during the last two decades. Thanks to their excellent work (maintenance, calibration, observation activities, etc.), high quality long-term datasets can be generated. The Eureka measurements were made at the Polar Environment Atmospheric Research Laboratory (PEARL) by the Canadian Network for the Detection of Atmospheric Change (CANDAC), led by James R. Drummond, and in part by the Canadian Arctic ACE Validation Campaigns, led by Kaley A. Walker. They were supported by the AIF/NSRIT, CFI, CFCAS, CSA, EC, GOC-IPY, NSERC, NSTP, OIT, PCSP, and ORF. The authors wish to thank Rebecca Batchelor, Rodica Lindenmaier, PEARL site manager Pierre F. Fogal, the CANDAC operators, and the staff at Environment CanadaÅ› Eureka weather station for their contributions to data acquisition, and logistical and on-site support. We thank the Alfred Wegener Institut Bremerhaven for support in using the AWIPEV research base, Spitsbergen, Norway. The work has been supported by EU-Project NORS. We would like to thank Uwe Raffalski and Peter Volger for technical support at IRF Kiruna. The University of Liege contribution to the present work has primarily been supported by the A3C PRODEX program, funded by the Belgian Federal Science Policy Office (BELSPO, Brussels), and by the Swiss GAW-CH program of MeteoSwiss (Zurich). Laboratory developments and mission expenses were funded by FRS-FNRS and the Fed´ eration Wallonie-Bruxelles, respectively. We thank the International Foundation High Altitude Research Stations Jungfraujoch and Gornergrat (HFSJG, Bern) for supporting the facilities needed to perform the observations. We further acknowledge the vital contribution from all the colleagues who have performed the observations used here. E. Sepulveda enjoys a pre-doctoral fellowship from the Spanish Ministry of Education. Measurements at Wollongong are supported by the Australian Research Council, grant DP110103118. We would like to thank Antarctica New Zealand and the Scott Base staff for providing logistical support for the NDACC-FTIR measurement program at Arrival Heights. This study has been conducted in the framework of the project MUSICA, which is funded by the European Research Council under the European CommunityÅ› Seventh Framework Programme (FP7/2007-2013)/ERC Grant agreement number 256961. We acknowledge the support by the Deutsche Forschungsgemeinschaft and the Open Access Publishing Fund of the Karlsruhe Institute of Technology. The service charges for this open access publication have been covered by a Research Centre of the Helmholtz Association.Funding DetailsDP110103118, ARC, Australian Research Council
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1st AuthorSchneider, M.AuthorSchneider, M.Barthlott, S.Hase, F.Gonzalez, Y.Yoshimura, K.Garcia, O.Sepulveda, E.Gomez-Pelaez, A.Gisi, M.Kohlhepp, R.Dohe, S.Blumenstock, T.Wiegele, A.Christner, E.Strong, K.Weaver, D.Palm, M.Deutscher, N.Warneke, T.Notholt, J.Lejeune, B.Demoulin, P.Jones, N.Griffith, D.Smale, D.Robinson, J.Year2012JournalAtmospheric Measurement TechniquesVolume5Number12Pages3007-3027DOI10.5194/amt-5-3007-2012URLhttps://www.scopus.com/inward/recor.....34d56d2a2e8c7bd1a86773473Keywordsdata seterror analysishumiditynoiseprecisionremote sensingtemperature profiletropospherewater vapor, rank5
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TypeArticleCitationSchneider, M., Barthlott, S., Hase, F., Gonzalez, Y., Yoshimura, K., Garcia, O., Sepulveda, E., Gomez-Pelaez, A., Gisi, M., Kohlhepp, R., Dohe, S., Blumenstock, T., Wiegele, A., Christner, E., Strong, K., Weaver, D., Palm, M., Deutscher, N., Warneke, T., Notholt, J., Lejeune, B., Demoulin, P., Jones, N., Griffith, D., Smale, D. and Robinson, J. (2012). Ground-based remote sensing of tropospheric water vapour isotopologues within the project MUSICA. Atmospheric Measurement Techniques, 5(12): 3007-3027 IdentifierSchneider2012Relevancerank5
Robinson, J., Ground-based remote sensing of tropospheric water vapour iso, [Schneider2012]. Antarctica NZ, accessed 07/02/2025, https://adam.antarcticanz.govt.nz/nodes/view/63758, 10.5194/amt-5-3007-2012