| Автор | Gates, W. L. |
| Автор | Cook, K. H. |
| Автор | Schlesinger, M. E. |
| Дата выпуска | 1981 |
| dc.description | Preliminary results from numerical experiments designed to show the seasonal and geographical distribution of the climatic changes resulting from increased atmospheric CO<sub>2</sub> concentration are presented. These simulations were made for both doubled and quadrupled CO<sub>2</sub> levels with an improved version of the two‐level OSU atmospheric GCM. In these experiments and in a control run with normal CO<sub>2</sub>, the solar radiation incident at the top of the model atmosphere and the sea‐surface temperature and sea ice were given prescribed seasonal climatological variations. In January the globally averaged tropospheric temperature is increased with respect to the control mean by 0.30°C (0.48°C) for doubled (quadrupled) CO<sub>2</sub>, which may be compared with an interannual January temperature variability of 0.15°C in the control (as measured by the root‐mean‐square of January monthly averages in a 3‐year control integration). In July, the globally averaged tropospheric temperature rises by 0.33°C (0.60°C) for doubled (quadrupled) CO<sub>2</sub>, with an average warming over land surfaces of 0.71°C (1.04°C); these values may be compared with a root‐mean‐square interannual July temperature variability of only 0.03°C in the control. These results are clearly due to the model's differing thermal response over ocean and continent in the summer and winter seasons. In comparison with the results from models using a swamp ocean (which absorbs no heat), the present experiments with a climatological ocean represent the opposite limiting case in which the ocean is an infinite reservoir of heat. Although the present model gives a small but significant overall warming without poleward amplification, and does not indicate a significant change of the atmosphere's general circulation or hydrological cycle, these results are due to the unrealistic suppression of water vapor‐ and albedo‐temperature feedbacks. |
| Формат | application.pdf |
| Копирайт | Copyright 1981 by the American Geophysical Union. |
| Тема | OCEANOGRAPHY: GENERAL |
| Тема | Oceanography: Chemical oceanography |
| Тема | Oceanography: Thermohaline structure and circulation |
| Название | Preliminary analysis of experiments on the climatic effects of increased CO<sub>2</sub> with an atmospheric general circulation model and a climatological ocean |
| Тип | article |
| DOI | 10.1029/JC086iC07p06385 |
| Electronic ISSN | 2156-2202 |
| Print ISSN | 0148-0227 |
| Журнал | Journal of Geophysical Research: Oceans |
| Том | 86 |
| Первая страница | 6385 |
| Последняя страница | 6393 |
| Выпуск | C7 |
| Библиографическая ссылка | Bach, W., The potential consequences of increasing CO<sub>2</sub> levels in the atmosphere, Carbon Dioxide, Climate and SocietyJ.Williams, 141–167, Pergamon, New York, 1978. |
| Библиографическая ссылка | Manabe, S., R. T.Wetherald, The effects of doubling the CO<sub>2</sub> concentration on the climate of a general circulation model, J. Atmos. Sci., 32, 3–15, 1975. |
| Библиографическая ссылка | Manabe, S., R. T.Wetherald, On the distribution of climate change resulting from an increase in CO<sub>2</sub> content of the atmosphere, J. Atmos. Sci., 37, 99–118, 1980. |
| Библиографическая ссылка | Mitchell, J. F. B., Preliminary report on the numerical study of the effect on climate of increasing atmospheric carbon dioxideTech. Note II/137Meteorol. Office, Bracknell, 1979. |
| Библиографическая ссылка | Schlesinger, M. E., W. L.Gates, Numerical simulations of the January and July global climate with the OSU two‐level atmospheric general circulation modelRep. 9Climatic Res. Inst., Oregon State Univ., Corvallis, 1979. |
| Библиографическая ссылка | Schlesinger, M. E., W. L.Gates, The mean annual cycle and interannual variability of the global climate simulated by the OSU atmospheric general circulation model, reportClimatic Res. Inst., Oregon State Univ., Corvallis, 1981. |
| Библиографическая ссылка | Schneider, S. H., On the carbon dioxide‐climate confusion, J. Atmos. Sci, 32, 2060–2066, 1975. |
