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Comparison of areally averaged turbulent fluxes over non-homogeneous terrain: Results from the EFEDA-field experiment

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Abstract

In June 1991 the EFEDA-field experiment (ECHIVAL Field Experiment in a Desertification-Threatened Area) was carried out in the Spanish province Castilla-La Mancha, to improve the understanding of the interactions between the soil, the vegetation and the atmosphere.

Here results of energy balance studies at the Barrax site are given, one of the three intensively studied experimental sites within Castilla-La Mancha. This area is characterized by a large fraction of irrigated fields (40%) while the remaining 60% was fallow land at the end of June 1991. The energy balances over these two characteristic land-use classes totally differ. While for the irrigated fields the evapotranspiration is dominant, for the non-irrigated fields the sensible and the soil heat fluxes dominate and the latent heat flux is nearly negligible.

In order to achieve areally averaged turbulent fluxes, surface, SODAR and aircraft data have been used. Comparing the surface fluxes from all three facilities, it can be found that:

The sensible heat flux estimation from SODAR (Σw-method) gives reliable results when a calibration of Σw is done with another independent system (e.g. aircraft).

Aircraft measurements in conjunction with energy budget methods yield surface fluxes of sensible heat, which are about 20% lower than the areally averaged values calculated by the surface measurements. The areally averaged latent heat fluxes from aircraft and surface measurements agree better than the sensible heat fluxes.

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References

  • Adrian, G. and Fiedler, F.: 1991, ‘Simulation of Unstationary Wind- and Temperature Fields Over Complex Terrain and Comparison with Observations’, Beitr. Phys. Atmosph. 64, 27–28.

    Google Scholar 

  • Adrian, G. and Fiedler, F.: 1994, ‘Mesoscale Modeling’, EFEDA-Phase II Annual Progress Report.

  • André, J.-C., Bougeault, P. and Goutorbe, J.-P.: 1990, ‘Regional Estimates of Heat and Evaporation Fluxes Over Non-Homogeneous Terrain. Examples from the HAPEX-MOBILHY Programme’, Boundary-Layer Meteorol. 50, 77–108.

    Google Scholar 

  • Angevine, W. M., Avery, S. K., Ecklund, W. L., Carter, D. A., Gage, K. S. and Kok, G. L.: 1993, ‘Wind Profiler Heat Flux Measurements Compared to Aircraft Measurements ’, 26th International Conference on Radar Meteorology, Norman Oklahoma, pp. 629–630.

  • Barth, H. K.: 1993, ‘Die Entwicklung des Bewässerungsfeldbaus in La Mancha, Spanien’, in H. Popp and K. Rother (eds.), Die Bewässerungsgebiete im Mittelmeerraum, Passauer Schriften zur Geographie Heft 13, Rother, Passau pp. 63–70.

    Google Scholar 

  • Betts, A. K., Desjardins, R. L., Macpherson, J. L., and Kelly, R. D.: 1990, ‘Boundary-Layer Heat and Moisture Budgets from FIFE’, Boundary-Layer Meteorol. 50, 109–137.

    Google Scholar 

  • Bolle, H.-J., André, J.-C., Arrue, J. L., Barth, H. K., Bessemoulin, P., Brasa, A., del Bruin, H. A. R., Dugdale, G., Engman, E. T., Evans, D. L., Fantechi, R., Fiedler, F., van de Griend, A., Imenson, A. C., Jochum, A., Kabat, P., Kratzsch, T., Lagouarde, J.-R, Langer, I., Llamas, R., Lopez-Baeza, E., Melia Miralles, J., Muniosguren, L. S., Nerr, E, Noilhan, J., Oliver, H. R., Roth, R., Sanchez Diaz, J., de Santa Olalla, M., Shuttleworth, W. J., Soergaard, H., Stricker, H., Thornes, J., Vauclin, M., and Wickland, D.: 1993, ‘EFEDA: European Field Experiment in a Desertification-threatened Area’, Ann. Geophys. 11, 173–189.

    Google Scholar 

  • Braud, I.,Noilhan, J., Bessemoulin, P., Mascart, P., Haverkamp, R. and Vauclin, M.: 1993, ‘Bare-Ground Surface Heat and Water Exchanges Under Dry Conditions: Observations and Parameterization’, Boundary-Layer Meteorol. 66, 173–200.

    Google Scholar 

  • Businger, J. A.: 1973, ‘Turbulent Transfer in the Atmospheric Surface Layerrs’, pp. 67–100, in: Workshop on Mircrometeorology, edited by Haugen, D.A., Boston, 1973, 392 pp.

  • Caughey, S. J. and Palmer, S. G.: 1979, ‘Some Aspects of Turbulence Structure Through the Depth of the Convective Boundary Layer’, Quart. J. Roy. Met. Soc. 105, 811–827.

    Google Scholar 

  • Caughey, S. J.: 1982, ‘Observal Characteristics of the Atmospheric Boundary Layer’, pp. 107–158, in: F. T. M. Nieuwstadt and H. van Dop (eds.), Atmospheric Turbulence and Air Pollution Modelling, Reidel, Dordrecht, 1982, 358 pp.

    Google Scholar 

  • Coulter, R. L. and Wesely, M. L.: 1980, ‘Estimates of Surface Heat Flux from Sodar and Laser Scintillation Measurements in the Unstable Boundary Layer’, J. Appl. Met. 19, 1219–1222.

    Google Scholar 

  • Desjardins, R. L., Macpherson, J. I., Schuepp, P. H., and Karanja, F.: 1989, ‘An Evaluation of Aircraft Flux Measurements of CO2, Water Vapor and Sensible Heat’, Boundary-Layer Meteorol. 47, 55–69.

    Google Scholar 

  • Doviak, R. J. and Sorbjan, Z.: 1993, ‘On Radar Measurements of Surface Heat Fluxes’, 26th International conference on radar meteorology, Norman Oklahoma, pp. 435–437.

    Google Scholar 

  • Elliott, W. P.: 1958, ‘The Growth of the Atmospheric Internal Boundary Layer’, EOS, Trans. Am. Geophys. Union 39, 1048–1054.

    Google Scholar 

  • Fiedler, F., Corsmeier, U., Grunwald, J., Kalthoff, N., Kolle, O. and Walk, O.: 1992, ‘EFEDA-Field Campaign — Experimental Site, Instrumentation and First Results’, KfK Primärbericht 22.01.01P01G.

  • Foken, Th.: 1988, ‘Stabilitätsabhängigkeit der Wärmestrombestimmung aus SODAR-Messungen’, Z. Meteorol. 38, 348–352.

    Google Scholar 

  • Gentou, H., Kalthoff, N., Thomas, P. and Vogt, S.: 1991, ‘Estimation of the Temperature Structure Parameter and the Sensible Heat Flux from SODAR Measurements’, KfK-Bericht 4906.

  • Hillel, D.: 1980, ‘Fundamentals of Soil Physics’, Academic Press, Orlando, London, 413 pp.

    Google Scholar 

  • Hoppmann, U. and Roth, R. (eds): 1991, ‘Experimentbericht zu den Feldexperimenten HIBE'88 and ‘89‘’, Ber. Inst. Meteorol. Klimatol. T.U. Hannover, 261pp.

    Google Scholar 

  • Kaimal, J. C., Wyngaard, J. C., Haugen, D. A., Cote, O. R., Izumi, Y., Caughey, S. J., and Readings, C. J.: 1976, ‘Turbulent Structure in the Convective Boundary Layer’, J.Atmos. Sci. 33, 2152–2169.

    Google Scholar 

  • Kalthoff, N., Corsmeier, U. and Fiedler, F.: 1991, ‘Modification of Turbulent Fluxes and Temperature Fields in the Atmospheric Surface Layer Over Two Adjacent Agricultural Areas: A Case Study’, Ann. Geophys. 9, 521–533.

    Google Scholar 

  • Kalthoff, N., Schädler, G., Fiedler, F. and Adrian, G.: 1993, ‘Land Surface Processes Over Flat Agricultural Terrain: A Comparison of Measurements and Simulation using LOTREX-10E/HIBE88 Data’, Met. Zeitschrift N.F. 2.51-69.

  • Lagouarde, J. P. and McAnney, K.J.: 1992, ‘Daily Sensible Heat Flux Estimation from a Single Measurement of Surface Temperature and Maximum Air Temperature’, Boundary-Layer Meteorol. 59, 341–362.

    Google Scholar 

  • Lenschow, D. H.: 1970, ‘Airplane Measurements of Planetary Boundary Layer Structure’, J. Appl. Met. 9, 874–884.

    Google Scholar 

  • Lenschow, D. H. and Stankov, B. B.: 1986, ‘Length Scales in the Convective Boundary Layer’, J. Atmos. Sci. 12, 1198–1209.

    Google Scholar 

  • Löpmeier, F. J.: 1991, ‘Die Bestimmung der realen Evapotranspiration unter besonderer Berücksichtigung von Fernerkundungsmethoden’, Beiträge zur Agrarmeteorologie 6, 98pp.

  • Mayer, H. and Walk, O.: 1973, ‘Beiträge zur Meteorologie eines Steppengebietes, 2. Mitteilung, Bodentemperaturen und Bodenwärmestrom in der Trockenzeit’, Meteorol. Rundschau, 26, 18–23.

    Google Scholar 

  • Melas, D.: 1990, ‘Sodar Estimates of Surface Heat Flux and Mixed Layer Depth Compared with Direct Measurements’, Atmospheric Environment, 24A, No. 11, 2847–2853.

    Google Scholar 

  • Millan, M., Artinano, B., Alonso, L., Castro, M., Fernandez-Patier, R. and Gobema, J.: 1992, ‘Mesometeorological Cycles of Air Pollution in the Iberian Peninsula’, Air Pollution Research Report 44,CEC, 219 pp.

  • Moores, W. H., Caughey, S. L., Readings, C. J., Milford, J. R., Mansfield, D. A., Abdulla, S., Guymer, T. H., and Johnston, W. B.: 1979, ‘Measurements of Bounday Layer Structure and Development Over SE England Using Aircraft and Tethered Balloon Instrumentation’, Quart. J. Roy. Met. Soc. 105, 397–421.

    Google Scholar 

  • Neff, W. D. and Coulter, R. L.: 1986, Acoustic Remote Sensing, Probing the atmospheric boundary layer, Ed. Lenschow., D.H., Am. Met. Soc. Boston, Massachusetts, pp. 201–236.

    Google Scholar 

  • Nerry, F: 1992, ‘Emissivity Measurements During EFEDA-Spain Field Campaign’, Proceedings of the EFEDA MID-Term Meeting, Oberpfaffenhofen, February 1992, pp. 305–314.

  • Noilhan, J.: 1994, ‘Modelling Results Obtained by the CNRM/GMME Group’, EFEDA-Phase II, Annual Progress Report.

  • Press, W. H., Flannery, B. P., Teukolsky, S. A., and Vetterling, W. T.: 1992, Numerical Recipes: The Art of Scientific Computing, Cambridge University Press, 963 pp.

  • Schaller, E.: 1983, ‘Synoptic Forcing of the Planetary Boundary Layer: A Case Study from the PUKK Experiment’, Beitr. Phys. Atmosph. 56, 382–398.

    Google Scholar 

  • Sellers, W.: 1965, Physical Climatology, University of Chicago Press, Chicago.

    Google Scholar 

  • Sellers, P. J., Hall, F. G., Asrar, G., Strebel, G. and Murphy, R. E.: 1988, ‘The First ISLSCP Field Experiment (FIFE)’, Bull. Amer. Meteorol. Soc., 68, 22–27.

    Google Scholar 

  • Stricker, H. and Droogers, P.: 1992, ‘Overview of the Soil Data Measurements’, First EEC EFEDA Report, Berlin, January 1992, pp. 38–39.

  • Stull, R. B.: 1988, An Introduction to Boundary Layer Meteorology, Kluwer Academic Publishers Netherlands, 666 pp.

    Google Scholar 

  • Vauclin, M., Haverkamp, R., Carillo, E., Gaudet, J. P., Laty, R., Laurent, J. P., Thony, J. L., and Vanderwaare, J. P.: 1992, ‘Basic Description of Soil Data Sets and Some Preliminary Results of the EFEDA-Spain Field Campaign’, First EEC EFEDA Report, Berlin, January 1992, pp. 26–37.

  • Webb, E. K., Pearman, G. I., and Leuning, R.: 1980, ‘Correction of Flux Measurement for Density Effects due to Heat and Water Vapour Transfer’, Quart. J. Roy. Met. Soc. 106, 85–100.

    Google Scholar 

  • De Vries, D.: 1975, Heat Transfer in Soils, in D. De Vries. and N. Afgan (eds.), Heat and Mass Transfer in the Biosphere, I, Transfer Processes in the Plant Environment, Scripta, Washington, D. C., pp. 5–28.

    Google Scholar 

  • Weill, A., Klapisz, C., Strauss, B., Baudin, F., Jaupart, C., Van Grunderbeeck, P., and Goutorbe, J. P.: 1980, ‘Measuring Heat Flux and Structure Functions of Temperature Fluctuations with an Acoustic Doppler Sodar’, J. Appl. Met. 19, 199–205.

    Google Scholar 

  • Wyngaard, J. C.: 1973, On Surface-Layer Turbulence, in D. Haugen (ed.), Workshop on Micrometeorology, Amer. Meteorol. Soc., Boston, 392 pp.

    Google Scholar 

  • Wyngaard, J. C.: 1986, Measurement Physics, in D. H. Lenschow (ed.), Probing the Atmospheric Boundary Layer, Amer. Meteorol. Soc., Boston, 269 pp.

    Google Scholar 

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Authors and Affiliations

  1. Institut für Meteorologie und Klimaforschung (IMK), Universität Karlsruhe/Forschungszentrum, Karlsruhe, Germany

    J. Grunwald, N. Kalthoff, U. Corsmeier & F. Fiedler

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  1. J. Grunwald
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  2. N. Kalthoff
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  3. U. Corsmeier
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  4. F. Fiedler
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Grunwald, J., Kalthoff, N., Corsmeier, U. et al. Comparison of areally averaged turbulent fluxes over non-homogeneous terrain: Results from the EFEDA-field experiment. Boundary-Layer Meteorol 77, 105–134 (1996). https://doi.org/10.1007/BF00119574

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