Specifying land surface characteristics in general circulation models: Soil profile data set and derived water‐holding capacities

A standardized global data set of soil horizon thicknesses and textures (particle size distributions) has been compiled from the Food and Agriculture Organization of the United Nations/United Nations Educational, Scientific, and Cultural Organization (FAO/UNESCO) Soil Map of the World, Vols. 2–10 [1971–1981]. This data set was developed for use by the improved land-surface hydrology parameterization designed by Abramopoulos et al. [1988] for the Goddard Institute for Space Studies General Circulation Model II (GISS GCM). The data set specifies the top and bottom depths and the percent abundance of sand, silt, and clay of individual soil horizons in each of the 106 soil types cataloged for nine continental divisions. When combined with the World Soil Data File [Zobler, 1986], the result is a l°×l° global data set of variations in physical properties throughout the soil profile. These properties are important in the determination of water storage in individual soil horizons and exchange of water with the lower atmosphere within global climate models. We have used these data sets, in conjunction with the Matthews [1983] global vegetation data set and texture-based estimates of available soil moisture, to calculate the global distributions of soil profile thickness, potential storage of water in the soil profile, potential storage of water in the root zone, and potential storage of water derived from soil texture. Comparisons with the water-holding capacities used in the GISS Model II show that our derived values for potential storage of water are consistently larger than those previously used in the GISS GCM. Preliminary analyses suggest that incorporation of this data set into the GISS GCM has improved the model's performance by including more realistic variability in land surface properties.

[1]  L. Ahuja,et al.  COMPARISON OF METHODS TO ESTIMATE SOIL WATER CHARACTERISTICS FROM SOIL TEXTURE, BULK DENSITY, AND LIMITED DATA , 1992 .

[2]  G. Russell,et al.  The impact of global warming on river runoff , 1992 .

[3]  R. Koster,et al.  Modeling the land surface boundary in climate models as a composite of independent vegetation stands , 1992 .

[4]  I. Fung.  A toy model for estimating N2O emissions from natural soils , 1992 .

[5]  E. L. Stone,et al.  On the maximum extent of tree roots , 1991 .

[6]  Robert S. Webb,et al.  A global data set of soil particle size properties , 1991 .

[7]  K. Vinnikov,et al.  Soil Moisture: Empirical Data and Model Results. , 1991 .

[8]  G. Russell,et al.  Global river runoff calculated from a global atmospheric general circulation model. , 1990 .

[9]  Cynthia Rosenzweig,et al.  Potential evapotranspiration and the likelihood of future drought , 1990 .

[10]  H. Groenendijk.  Estimation of the waterholding-capacity of soils in Europe : The compilation of a soil dataset. , 1989 .

[11]  C. Rosenzweig,et al.  Improved Ground Hydrology Calculations for Global Climate Models (GCMs): Soil Water Movement and Evapotranspiration , 1988 .

[12]  D. Rind.  The doubled CO2 climate and the sensitivity of the modeled hydrologic cycle , 1988 .

[13]  Syukuro Manabe,et al.  The influence of potential evaporation on the variabilities of simulated soil wetness and climate , 1988 .

[14]  W. Kellogg,et al.  Sensitivity of Soil Moisture to Doubling of Carbon Dioxide in Climate Model Experiments. Part I: North America , 1988 .

[15]  W. Rawls,et al.  Estimating generalized soil-water characteristics from texture , 1986 .

[16]  F. Ugolini.  Pedogenic Zonation in the Well-Drained Soils of the Arctic Regions , 1986, Quaternary Research.

[17]  A. Dalcher,et al.  A Simple Biosphere Model (SIB) for Use within General Circulation Models , 1986 .

[18]  Ann Henderson-Sellers,et al.  Current Global Land-surface Data Sets for Use in Climate-related Studies , 1986 .

[19]  Ann Henderson-Sellers,et al.  Biosphere-atmosphere Transfer Scheme (BATS) for the NCAR Community Climate Model , 1986 .

[20]  E. Matthews,et al.  Prescription of land-surface boundary conditions in GISS GCM 2: A simple method based on high-resolution vegetation data bases , 1984 .

[21]  Peter H. Stone,et al.  Efficient Three-Dimensional Global Models for Climate Studies: Models I and II , 1983 .

[22]  E. Matthews.  Global Vegetation and Land Use: New High-Resolution Data Bases for Climate Studies , 1983 .

[23]  D. L. Brakensiek,et al.  Estimation of Soil Water Properties , 1982 .

[24]  G. Gee,et al.  Particle size analysis by hydrometer: a simplified method for routine textural analysis and a sensitivity test of measurement parameters. , 1979 .

[25]  D. H. Newsome.  World Water Balance: Vols. 1–3. Proceedings of the Reading Symposium, July 1970. UNESCO. 706 pp. Price £9.60 , 1973 .

[26]  W. Gates,et al.  Global Climatic Data for Surface, 800 mb, 400 mb: July. , 1972 .

[27]  S. Manabe.  CLIMATE AND THE OCEAN CIRCULATION1 , 1969 .

[28]  R. L. Nace.  Water resources: a global problem with local roots. , 1967, Environmental science & technology.

[29]  J. Doe.  Soil Map of the World , 1957, Nature.