This study was made possible by the BCRS-EOS Bridging Phase Programme. Special acknowledgments are given to Anton Beljaars, who initiated much of the present work at KNMI and ECMWF, and to Massimo Menenti for taking the leading role in the BCRS-EOS project. Also, additional input by Bert Holtslag is greatly appreciated, and the authors acknowledge the illuminating discussions carried out with colleagues at ECMWF and KNMI, particularly Pedro Viterbo, Jean-Francois Mahfouf, Gerard Cats, Ben Wichers Schreur, and Toon Moene. Three anonymous reviewers showed much interest and offered useful suggestions for improvement of the analysis and the manuscript.
In situ surface flux measurements were carried out under auspices of Pavel Kabat, and analyzed and made available by Marja Ogink-Hendriks at SC-DLO. We are indebtedto them for their assistance and also that of other EFEDA-II members.
Bastiaanssen, W. G. M., 1995: Regionalization of surface flux densities and moisture indicators in composite terrain—A remote sensing approach under clear skies in Mediterranean climates. Ph.D. thesis, Agricultural University, 273 pp. [Available from DLO-Staring Centre, P.O. Box 125, 6700 AE Wageningen, the Netherlands.].
——, D. H. Hoekman, and R. A. Roebeling, 1994: A methodology for the assessment of surface resistance and soil water storage variability at mesoscale based on remote sensing measurements: A case sudy with HAPEX-EFEDA data. IAHS Special Publication 2, IAHS Press, Oxfordshire, United Kingdom, 66 pp. [Available from DLO-Staring Centre, P.O. Box 125, 6700 AE Wageningen, the Netherlands.].
——, M. Menenti, A. J. Dolman, R. A. Feddes, and H. Pelgrum, 1996: Remote sensing parameterization of meso-scale land surface evaporation. Radiation and Water in the Climate System: Remote Sensing Measurements, E. Raschke, Ed., NATO ASI Series, Vol. I.45, Springer-Verlag, 401–429.
——, ——, R. A. Feddes, and A. A. M. Holtsag, 1997a: A remote sensing surface energy balance algorithm for land (SEBAL). Part 1: Formulation. J. Hydrol., in press.
——, H. Pelgrum, J. Wang, Y. Ma, J. F. Moreno, G. J. Roerink, R. A. Roebeling, and T. van der Wal, 1997b: A remote sensing surface energy balance algorithm for land (SEBAL). Part 2: Validation. J. Hydrol, in press.
——, H. Pelgrum, P. Droogers, H. A. R. de Bruin, and M. Menenti, 1997c: Area-average estimates of evaporation, wetness indicators and top soil moisture during two golden days in EFEDA. Agric. For. Meteor., in press.
Betts, A. K., J. H. Ball, A. C. M. Beljaars, M. J. Miller, and P. Viterbo, 1996: The land surface-atmosphere interaction: A review based on observational and global modeling perspectives. J. Geophys. Res.,101(D3), 7209–7225.
Blyth, E. M., A. J. Dolman, and N. Wood, 1993: Effective resistance to sensible and latent heat flux in heterogeneous terrain. Quart. J. Roy. Meteor. Soc.,119, 423–442.
Bolle, H.-J., and Coauthors, 1993: EFEDA: European Field Experiment in a Desertification-Threatened Area. Ann. Geophys.,11, 173–189.
Bouttier, F., J.-F. Mahfouf, and J. Noilhan, 1993a: Sequential assimilation of soil moisture from atmospheric low-level parameters. Part I: Sensitivity and calibration studies. J. Appl. Meteor.,32, 1335–1351.
——, ——, and ——, 1993b: Sequential assimilation of soil moisture from atmospheric low-level parameters. Part II: Implementation in a mesoscale model. J. Appl. Meteor.,32, 1352–1364.
Chen, E., L. H. Allen, J. F. Bartholic, and J. F. Gerber, 1983: Comparison of winter-nocturnal geostationary satellite infrared-surface temperature with shelter-height temperature in Florida. Remote Sens. Environ.,13, 313–327.
Choudhury, B. J., S. B. Idso, and R. J. Reginato, 1987: Analysis of an empirical model for soil heat flux under a growing wheat crop for estimating evaporation by an infra-red temperature based energy balance equation. Agric. For. Meteor.,39, 283–297.
Christensen, J. H., and E. van Meijgaard, 1992: On the construction of a regional atmospheric climate model.KNMI Scientific Rep. 147, 22 pp. [Available from KNMI, P.O. Box 201, 3730 AE De Bilt, the Netherlands.].
——, O. B. Christensen, P. Lopez, E. van Meijgaard, and M. Botzet, 1996: The HIRHAM4 Regional Atmospheric Climate Model. Scientific Rep. 96-4, Danish Meteorological Institute, Copenhagen, Denmark, 51 pp. [Available from KNMI, P.O. Box 201, 3730 AE De Bilt, the Netherlands.].
Daley, R., 1991: Atmospheric Data Analysis. Cambridge University Press, 457 pp.
Dümenil, L., and E. Todini, 1992: A rainfall-runoff scheme for use in the Hamburg climate model. Advances in Theoretical Hydrology, J. P. O’Kane, Ed., European Geophysical Society Series on Hydrological Sciences, Vol. 1, Elsevier Science Publishers, 129–157.
Garratt, J. R., 1993: Sensitivity of climate simulations to land-surface and atmospheric boundary-layer treatments: A review. J. Climate,6, 419–449.
Geleyn, J. F., 1988: Interpolation of wind, temperature and humidity values from model levels to the height of measurements. Tellus,40A, 347–351.
Koepke, P., K. T. Kriebel, and B. Dietrich, 1985: The effect of surface reflection and of atmospheric parameters on the shortwave radiation budget. Adv. Space Res.,5, 351–354.
Mahfouf, J.-F., 1991: Analysis of soil moisture from near-surface parameters: A feasibility study. J. Appl. Meteor.,30, 1534–1547.
Menenti, M., W. G. M. Bastiaanssen, D. van Eick, and M. H. Abd El Karim, 1989: Linear relationships between surface reflectance and temperature and their application to map actual evaporation of groundwater. Adv. Space Res.,9, 165–176.
Milly, P. C. D., and K. A. Dunne, 1994: Sensitivity of the global water cycle to the water-holding capacity of land. J. Climate,7, 506–526.
Mintz, Y., and Y. V. Serafini, 1989: Global climatology of soil moisture and water balance. LMD Note 148, Laboratoire de Météorologique Dynamique du CNRS, Paris, France.
——, and ——, 1992: A global climatology of soil moisture and water balance. Climate Dyn.,8, 13–27.
Moene, A. F., H. A. R. de Bruin, and A. A. M. Holtslag, 1995: Validation of the surface parametrization of HIRLAM using surface-based measurements and remote sensing data. KNMI Scientific Rep. WR 95-07, KNMI, De Bilt, the Netherlands, 45 pp. [Available from KNMI, P.O. Box 201, 3730 AE De Bilt, the Netherlands.].
Noilhan, J., and S. Planton, 1989: A simple parametrization of land surface processes for meteorological models. Mon. Wea. Rev.,117, 536–549.
Ogink-Hendriks, M. J., P. Kabat, J. A. Elbers, W. G. M. Bastiaanssen, and H. G. M. van der Elsen, 1995: Contribution to the EFEDA field campaigns in 1991 and 1994. Rep. 112, DLO-Winand Staring Centre, Wageningen, the Netherlands, 150 pp. [Available from DLO-Staring Centre, P.O. Box 125, 6700 AE Wageningen, the Netherlands.].
Pelgrum, H., and W. G. M. Bastiaanssen, 1996: An intercomparison of techniques to determine the area-averaged latent heat flux from individual in situ observations: A remote sensing approach using the European Field Experiment in a Desertification-Threatened Area data. WaterResour. Res.,32, 2775–2786.
Shukla, J., and Y. Mintz, 1982: Influence of land surface evapotranspiration on the earth’s climate. Science,215, 1498–1501.
Thornwaite, C. W., 1944: Report of the Committee on Transpiration and Evaporation. Trans. Amer. Geophys. Union,25, 683–693.
van den Hurk, B. J. J. M., 1996: Sparce canopy parameterizations for meteorological models. Ph.D. thesis, Wageningen Agricultural University, 272 pp. [Available from Dept. of Meteorology, Duivendaal 2, 6701 AP Wageningen, the Netherlands.].
Viterbo, P., 1996: The representation of surface processes in general circulation models. Ph.D. thesis, University of Lisbon, 201 pp. [Available from ECMWF, Shinfield Park, Reading R62 GAX, United Kingdom.].
——, and A. C. M. Beljaars, 1995: An improved land surface parametrization scheme in the ECMWF model and its validation. J. Climate,8, 2716–2748.
——, and P. Courtier, 1995: The importance of soil water for medium-range weather forecasting. Implications for data assimilation. Proc. WMO Workshop on Imbalances of Slowly Varying Components of Predictable Atmospheric Motions, Beijing, China, World Meteor. Org., 121–130.
Wang, J., Y. Ma, M. Menenti, W. G. M. Bastiaanssen, and Y. Mitsuta, 1995: The scaling-up of processes in the heterogeneous landscape of HEIFE with the aid of satellite remote sensing. J. Meteor. Soc. Japan,73, 1235–1244.