Quality Control and Tilt Correction Effects on the Turbulent Fluxes Observed at an Ocean Platform

Hyun-Mi Oh Division of Earth Environmental System, Pusan National University, Busan, South Korea

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Kyung-Eak Kim Department of Astronomy and Atmospheric Sciences, Kyungpook National University, Daegu, South Korea

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Kyung-Ja Ha Division of Earth Environmental System, Pusan National University, Busan, South Korea

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Larry Mahrt College of Oceanic and Atmospheric Science, Oregon State University Corvallis, Oregon

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Jae-Seol Shim Coastal Disaster Prevention Research Division, Korea Ocean Research and Development Institute, Ansan, South Korea

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Abstract

This study investigates atmospheric factors influencing the quality and the postprocessing (e.g., tilt correction) of fast-response measurements of turbulent fluxes for difficult open-sea measurements over an offshore platform. The data were collected at the Ieodo Ocean Research Station over the Yellow Sea during the period from 5 November 2007 to 19 February 2008. The quality control removal of the data generally depends on wind speed, relative humidity, significant wave height, visibility, and stability. The removal of substantial water vapor data with weak-wind stable conditions is investigated. Three different tilt correction algorithms (double rotation, triple rotation, and planar fit) are applied to correct the data because of inadvertent tilt of sonic anemometers. The choice of tilt correction method significantly influences the angle between the wind and stress direction.

Corresponding author address: Kyung-Ja Ha, Division of Earth Environmental System, Pusan National University, Busan, 609-735, South Korea. Email: kjha@pusan.ac.kr

Abstract

This study investigates atmospheric factors influencing the quality and the postprocessing (e.g., tilt correction) of fast-response measurements of turbulent fluxes for difficult open-sea measurements over an offshore platform. The data were collected at the Ieodo Ocean Research Station over the Yellow Sea during the period from 5 November 2007 to 19 February 2008. The quality control removal of the data generally depends on wind speed, relative humidity, significant wave height, visibility, and stability. The removal of substantial water vapor data with weak-wind stable conditions is investigated. Three different tilt correction algorithms (double rotation, triple rotation, and planar fit) are applied to correct the data because of inadvertent tilt of sonic anemometers. The choice of tilt correction method significantly influences the angle between the wind and stress direction.

Corresponding author address: Kyung-Ja Ha, Division of Earth Environmental System, Pusan National University, Busan, 609-735, South Korea. Email: kjha@pusan.ac.kr

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  • Bentamy, A., K. B. Katsaros, A. M. Mestas-Nuñez, W. M. Drennan, E. B. Forde, and H. Roquet, 2003: Satellite estimates of wind speed and latent heat flux over the global oceans. J. Climate, 16 , 637656.

    • Search Google Scholar
    • Export Citation
  • Carter, D. J. T., 1982: Prediction of wave height and period for a constant wind velocity using the JONSWAP results. Ocean Eng., 9 , 1733.

    • Search Google Scholar
    • Export Citation
  • Finnigan, J. J., R. Clement, Y. Malhi, R. Leuning, and H. A. Cleugh, 2003: A re-evaluation of long-term flux measurement techniques. Part I: Averaging and coordinate rotation. Bound.-Layer Meteor., 107 , 148.

    • Search Google Scholar
    • Export Citation
  • Foken, T., 1999: Comparison of the sonic anemometer Young Model 81000 during VOITEX-99. University of Bayreuth Dept. of Micrometeorology Deliverable 8, 12 pp.

    • Search Google Scholar
    • Export Citation
  • Foken, T., and B. Wichura, 1996: Tools for quality assessment of surface-based flux measurements. Agric. For. Meteor., 78 , 83105.

  • Foken, T., U. Weisensee, H.-J. Krizel, and V. Thierman, 1997: Comparison of new type sonic anemomters. Proc. 12th Symp. on Boundary Layer and Turbulence, Vancouver, BC, Canada, Amer. Meteor. Soc., 356–357.

    • Search Google Scholar
    • Export Citation
  • Friehe, C. A., S. P. Burns, D. Khelif, and X. Song, 1996: Meteorological and flux measurements from the NOAA WP3D aircraft in TOGA COARE. Proc. Eighth Conf. on Air–Sea Interaction and Conference on the Global Ocean–Atmosphere–Land System, Atlanta, GA, Amer. Meteor. Soc., 42–45.

    • Search Google Scholar
    • Export Citation
  • Geernaert, G. L., 1983: Variation of the drag coefficient and its dependence on sea state. Ph.D. thesis, University of Washington, 120 pp.

  • Grachev, A. A., and C. W. Fairall, 2001: Upward momentum transfer in the marine boundary layer. J. Phys. Oceanogr., 31 , 16981711.

  • Grachev, A. A., C. W. Fairall, J. E. Hare, J. B. Edson, and S. D. Miller, 2003: Wind stress vector over ocean waves. J. Phys. Oceanogr., 33 , 24082429.

    • Search Google Scholar
    • Export Citation
  • Højstrup, J., 1993: A statistical data screening procedure. Meas. Sci. Technol., 4 , 153157.

  • Johansson, C., A.-S. Smedman, U. Högström, J. G. Brasseur, and S. Khanna, 2001: Critical test of the validity of Monin–Obukhov similarity during convective conditions. J. Atmos. Sci., 58 , 15491566.

    • Search Google Scholar
    • Export Citation
  • Kaimal, J. C., and J. J. Finnigan, 1994: Atmospheric Boundary Layer Flows: Their Structure and Measurement. Oxford University Press, 289 pp.

    • Search Google Scholar
    • Export Citation
  • Kinsman, B., 1965: Wind Waves. Prentice-Hall, 676 pp.

  • Korea Ocean Research and Development Institute, 2001: Construction and operation of the Ieodo ocean observation station. R&D report of Ministry of Maritime Affairs and Fisheries.

    • Search Google Scholar
    • Export Citation
  • Kraan, C., and W. A. Oost, 1989: A new way of anemometer calibration and its application to a sonic anemometer. J. Atmos. Oceanic. Technol., 6 , 516524.

    • Search Google Scholar
    • Export Citation
  • Mahrt, L., 1991: Eddy asymmetry in the sheared heated boundary layer. J. Atmos. Sci., 48 , 472492.

  • Mauder, M., C. Liebethal, M. Göckede, J.-P. Leps, F. Beyrich, and T. Foken, 2006: Processing and quality control of flux data during LITFASS-2003. Bound.-Layer Meteor., 121 , 6788.

    • Search Google Scholar
    • Export Citation
  • Mauder, M., and Coauthors, 2007: The Energy Balance Experiment EBEX-2000. Part II: Intercomparison of eddy-covariance sensors and post-field data processing methods. Bound.-Layer Meteor., 123 , 2954.

    • Search Google Scholar
    • Export Citation
  • McMillen, R. T., 1988: An eddy correlation technique with extended applicability to non-simple terrain. Bound.-Layer Meteor., 43 , 231245.

    • Search Google Scholar
    • Export Citation
  • Paw U, K. T., D. D. Baldocchi, T. P. Meyers, and K. B. Wilson, 2000: Correction of eddy-covariance measurements incorporating both advective effects and density fluxes. Bound.-Layer Meteor., 97 , 487511.

    • Search Google Scholar
    • Export Citation
  • Pospelov, M. N., and Coauthors, 2009: Air–sea interaction in a coastal zone: The results of the CAPMOS’05 experiment on an oceanographic platform in the Black Sea. Atmos. Res., 94 , 6173.

    • Search Google Scholar
    • Export Citation
  • Sun, J., 2007: Tilt corrections over complex terrain and their implication for CO2 transport. Bound.-Layer Meteor., 124 , 143159.

  • Tanner, C. B., and G. W. Thurtell, 1969: Anmoclinometer measurements of reynold stress and heat transport in the atmospheric surface layer. Department of Soil Science, University of Wisconsin, Madison, WI, Research and Development Tech. Rep., ECOM 66-G220F, 82 pp.

    • Search Google Scholar
    • Export Citation
  • Thomson, B. E., and R. C. Hassman Jr., 2001: Meteorological twin-hot-film anemometry. J. Atmos. Oceanic. Technol., 18 , 493502.

  • Tucker, M. J., and E. G. Pitt, 2001: Waves in Ocean Engineering. Elsevier, 550 pp.

  • Vickers, D., and L. Mahrt, 1997: Quality control and flux sampling problems for tower and aircraft data. J. Atmos. Oceanic. Technol., 14 , 512526.

    • Search Google Scholar
    • Export Citation
  • Wilczak, J. M., S. P. Oncley, and S. A. Sage, 2001: Sonic anemometer tilt correction algorithms. Bound.-Layer Meteor., 99 , 127150.

  • Yim, J.-W., K.-R. Lee, J.-S. Shim, and C.-A. Kim, 2006: Numerical study on the observational error of sea surface winds at Ieodo ocean research station. J. Korean Soc. Coastal Oceanic Eng., 18 , 189197.

    • Search Google Scholar
    • Export Citation
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