한국농림기상학회지, 제 9권 제4호(2007) (pISSN 1229-5671, eISSN 2288-1859)
Korean Journal of Agricultural and Forest Meteorology, Vol. 9, No. 4, (2007), pp. 260~267
DOI: 10.5532/KJAFM.2007.9.4.260
ⓒ Author(s) 2014. CC Attribution 3.0 License.


KoFlux 관측지에서 에디 공분산 자료의 품질관리 및 보증

권효정(1), 박성빈(1), 강민석(1), 유재일(1), 렌민 유안(2), 김 준(1)
(1)연세대학교 대기과학과/지구환경연구소
(2)중국과학기술대학 지구/우주과학대학

(2007년 11월 13일 접수; 2007년 12월 13일 수락)

Quality Control and Assurance of Eddy Covariance Data
at the Two KoFlux Sites

Hyojung Kwon(1), Sungbin Park(1), Minseok Kang(1), Jaeil Yoo(1), Renmin Yuan(2), Joon Kim(1)
(1)Biometeorology Laboratory & Global Environment Laboratory, Dept. of Atmospheric Sciences,
Yonsei University, Seoul 120-749, Korea
(2)School of Earth and Space Sciences, University of Science & Technology of China,
Hefei, Anhui Province 230026, China

(Received November 13, 2007; Accepted December 13, 2007)

ABSTRACT
This research note introduces the procedure of the quality control and quality assurance applied to the eddy covariance data collected at the two KoFlux sites (i.e., Gwangneung forest and Haenam farmland). The quality control was conducted through several steps based on micrometeorological theories and statistical tests. The data quality was determined at each step of the quality control procedure and was denoted by five different quality flags. The programs, which were used to perform the quality control, and the quality assessed data are available at KoFlux website (http://www.koflux.org/).

Keyword: Quality check, Quality assurance, Quality flag, Eddy covariance, KoFlux

MAIN

적요

이 연구노트에서는 KoFlux 관측지인 광릉 산림과 해남 농경지에서 관측된 에디 공분산 자료의 품질을 관리하고 보증하는 방법을 소개하였다. 자료의 품질관리는 미기상학적/통계학적 분석을 기반으로 8 단계의 과정을 거쳐 이루어졌고 자료의 품질에 따라 5 등급으로 분리되어 표시되었다. 품질관리를 위해 사용된 프로그램과 품질 보증된 최종 자료는 KoFlux 웹사이트(http://www.koflux.org/)에서 내려 받을 수 있다.

REFERENCES

Aubinet, M., A. Grelle, A. Ibrom, U. Rannik, J. Moncrieff, T. Foken, A. S. Kowalski, P. H. Martin, P. Berbigier, C. Bernhofer, R. Clement, J. Elbers, A. Granier, T. Grunwald, K. Morgenstern, K. Pilegaard, C. Rebmann, W. Snijders, R. Valentini, and T. Vesala, 2000: Estimates of the annual net carbon and water exchange of forests: The EUROFLUX methodology. Advances in Ecological Research 30, 113-175

Baldocchi, D. D., B. B. Hicks, and T. P. Meyers, 1988: Measuring biosphere-atmosphere exchanges of biologically related gases with micrometeorological methods. Ecology 69, 1331-1340crossref(new window)

Baldocchi, D. D., 2003: Assessing the eddy covariance technique for evaluating carbon dioxide exchange rates of ecosystems: past, present and future. Global Change Biology 9(4), 479-492crossref(new window)

Choi, T., 2003: $CO_2$ and energy exchange over a Kwangneung broadleaf deciduous forest in a complex terrain. Ph. D. Dissertation, Yonsei University, 142pp

Finnigan, J. J., R. Clement, Y. Malhi, R. Leuning, and H. Cleugh, 2003: A re-evaluation of long-term flux measurement techniques. Part 1: Averaging and coordinate rotation. Boundary -Layer Meteorology 107, 1-48crossref(new window)

Foken, Th. and B. Wichura, 1996: Tools for quality assessment of surface-based flux measurement. Agricultural and Forest Meteorology 78, 83-105crossref(new window)

Foken, T., M. Gockede, M. Mauder, L. Mahrt, B. Amiro, and W. Munger, 2004: Post-field data quality control. Handbook of Micrometeorology : A Guide for Surface Flux Measurement and Analysis, X. Lee, W. Massman, and B. Law (Eds), Kluwer Academic Publisher, Dordrecht, 181-208

Foken, T., F. Wimmer, M. Mauder, C. Thomas, and C. Liebethal, 2006: Some aspects of the energy balance closure problem. Atmospheric Chemistry and Physics 6, 4395-4402

Gockede, M., C. Rebmann, and T. Foken, 2004: Use of footprint modeling for the characterization of complex meteorological flux measurement sites. Agricultural and Forest Meteorology 127, 177-188

Grelle, A. and G. Burba, 2007: Fine-wire thermometer to correct $CO_2$ fluxes by open-path analyzers for artificial density fluctuations. Agricultural and Forest Meteorology 147, 48-57crossref(new window)

Hong, J. , H. C. Lee, J. Kim, B. Kim, C. Cho, and S. Lee, 2003: Infering regional scale surface heat flux around FK KoFlux site: From one point tower measurement to MM5 mesoscale model. Korean Journal of Agricultural and Forest Meteorology 5, 138-149

Kaimal, J. C. and J. J. Finnigan, 1994: Atmospheric Boundary Layer Flows: Their Structure and Measurement , Oxford University Press, New York, 249 pp

Kim, J., D. Lee, J. Hong, S. Kang, S. J. Kim, S.-K. Moon, J.-H. Lim, Y. Son, J. Lee, S. Kim, N. Woo, K. Kim, B. Lee, B.-L. Lee, and S. Kim, 2006: HydroKorea and CarboKorea: cross-scale studies of ecohydrology and biogeochemistry in a heterogeneous and complex forest catchment of Korea. Ecological Research 21, 881-889, doi10.1007/s11284-006-0055-3crossref(new window)

Lee, H. C., J. K. Hong, C. H., Cho, B. C. Choi, and J. Kim, 2003: Tower $CO_2$ measurements in farmland (Haenam/ Korea). Korean Journal of Agricultural and Forest Meteorology 5(2), 61-69

Lee, X., 1998: On micrometeorological observations of surface-air exchange over tall vegetation. Agricultural and Forest Meteorology 91, 39-49crossref(new window)

Rebmann, C, M. Gockede, T. Foken, M. Aubinet, M. Aurela, P. Berbigier, C. Bernhofer, N. Buchmann, A. Carrara, A. Cescatti, R. Ceulemans, R. Clement, J. A. Elbers, A. Granier, T. Grünwald, D. Guyon, K. Havrankova, B. Heinesch, A. Knohl, T. Laurila, B. Longdoz, B. Marcolla, T. Markkanen, F. Miglietta, J. Moncrieff, L. Montagnani, E. Moors, M. Nardino, J.-M. Ourcival, S. Rambal, U. Rannik, E. Rotenberg, P. Sedlak, G. Unterhuber, T. Vesala, and D. Yakir, 2005: Quality analysis applied on eddy covariance measurements at complex forest sites using footprint modeling. Theoretical and Applied Climatology 80, 121-141crossref(new window)

Ruppert, J., M. Mauder, C. Thomas, and J..Lüers, 2006: Innovative gapfilling strategy for annual sums of $CO_2$ net ecosystem exchange. Agricultural and Forest Meteorology 138, 5-18crossref(new window)

Webb, E. K., G. I. Pearmann, and R. Leuning, 1980:Correction of flux measurements for density effects due to heat and water vapor transfer. Quarterly Journal of Royal Meteorological Society 106, 85-100crossref(new window)

Wilczak, J. M., S. P. Oncley, and S. Stage, 2001: Sonic anemometer tilt correction algorithms. Boundary-Layer Meteorology 99, 127-150crossref(new window)

Wilson, K., A. Goldstein, E. Falge, M. Aubinet, D. Baldocchi, P. Berbigier, C. Bernhofer, R. Ceulemans, H. Dolman, C. Field, A. Grelle, A. Ibrom, B. E. Law,A. Kowalski, R. Valentini, S. Verma, T. Meyers, J. Moncrieff, R. Monsonn, W. Oechel, and J. Tenhunen, 2002: Energy balance closure at FLUXNET sites. Agricultural and Forest Meteorology 113, 223-243crossref(new window)

Wyngaard, J. C., O. R. Cote, and Y. Izumi, 1971: Local free convection, similarity, and the budgets of shear stress and heat flux. Journal of Atmospheric Sciences 28, 1171-1182

Yuan, R., M. Kang, S. Park, J. Hong, and J. Kim, 2007: The effect of coordinate rotation on the eddy covariance flux estimation in a hilly KoFlux forest catchment. Korean Journal of Agricultural and Forest Meteorology 9(2), 100-108