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Detailed Reference Information |
Roads, J.O., Chen, S.-C., Kao, J., Langley, D. and Glatzmater, G. (1992). Global aspects of the Los Alamos general circulation model hydrologic cycle. Journal of Geophysical Research 97: doi: 10.1029/92JD00224. issn: 0148-0227. |
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The global hydrologic cycle in the Los Alamos general circulation model (GCM) is compared to available global observations. Global observations of the water vapor, water-vapor flux and water-vapor flux divergence derived from the National Meteorological Center's final analysis for the period 1986--1989. The new precipitation data set of Legates and Willmott (1990) is used for the global precipitation observations. Global evaporation is derived as a residual of the precipitation and water-vapor flux divergence. There are a number of similarities as well as discrepancies between the GCM and observations. The large-scale nondivergent GCM circulations are remarkably similar to the observed circulations; the large-scale GCM precipitation and evaporation patterns are also qualitatively similar to observations. Discrepancies are mainly quantitative and small-scale in nature: the GCM atmosphere is relatively dry which results in a slightly greater evaporation and precipitation rate than is observed; the GCM South Pacific convergence zone is displaced too far to the northwest. ¿ American Geophysical Union 1992 |
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Abstract |
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Keywords
Meteorology and Atmospheric Dynamics, General circulation, Meteorology and Atmospheric Dynamics, Climatology, Hydrology, Hydrologic budget, Meteorology and Atmospheric Dynamics, General or miscellaneous |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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