| タイトル | Global aspects of the Los Alamos general circulation model hydrologic cycle |
| 著者（英） | Chen, S.-C.; Roads, J. O.; Langley, D.; Glatzmaier, G.; Kao, J. |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 1992-06-20 |
| 言語 | eng |
| 内容記述 | 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 are 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 and divergent 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. |
| NASA分類 | METEOROLOGY AND CLIMATOLOGY |
| レポートNO | 92A45797 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/325890 |
