نتایج جستجو برای: atmospheric general circulation models
تعداد نتایج: 1681053 فیلتر نتایج به سال:
Annual and seasonal correlations between temperature and both specific and relative humidity are presented based on radiosonde station data over the tropical Pacific Ocean and North America. Results are presented for the surface and the 850-, 700-, and 500-hPa levels. The correlations between anomalies of temperature and relative humidity are generally negative, and those between temperature an...
This study is a part of the Atmospheric Radiation Measurement (ARM) Program single-column model (SCM) intercomparison project, which compares the performance of various SCMs and cloud ensemble models (CEMs) with ARM intensive observation period (IOP) data sets. The goal of this project is to improve the representations of cloud formative/dissipative processes in general circulation models (GCMs...
[1] To assess the current status of climate models in simulating clouds, basic cloud climatologies from ten atmospheric general circulation models are compared with satellite measurements from the International Satellite Cloud Climatology Project (ISCCP) and the Clouds and Earth’s Radiant Energy System (CERES) program. An ISCCP simulator is employed in all models to facilitate the comparison. M...
The properties of tropical cyclones in three low-resolution atmospheric general circulation models (AGCMs) in seven ocean basins are discussed. The models are forced by prescribed, observed sea surface temperatures over a period of 40 yr, and their simulations of tropical cyclone activity are compared with observations. The model cyclone characteristics considered include genesis position, numb...
R. D. CESS, • G. L. POTTER, 2 J.P. BLANCHET, 3 G. J. BOER, 3 A.D. DEL GENIO, 4 M. Dl•QUl•, 5 V. DYMNIKOV, 6 V. GALIN, 6 W. L. GATES, 2 S. J. GHAN, 2 J. T. KIEHL, 7 A. A. LACiS, 4 H. LE TREUT, 8 Z.-X. LI, 8 X.-Z. LIANG, 9 B. J. MCAVANEY, lø V. P. MELESHKO, TM J. F. B. MITCHELL, 12 J.-J. MORCRETTE, •3 D. A. RANDALL, TM L. RIKUS, •ø E. ROECKNER, •5 J. F. ROYER, 5 U. SCHLESE, 15 D. A. SHEININ, TM A...
D. A. RANDALL, l R. D. CESS, 2 J.P. BLANCHET, 3 G. J. BOER, 3 D. A. DAZLICH, • A.D. DEL GENIO, 4 M. DEQUE, 5 V. DYMNIKOV, 6 V. GALIN, 6 S. J. GHAN, 7 A. A. LACIS, 4 H. LE TREUT, 8 Z.-X. LI, 8 X.-Z. LIANG, 9 B. J. MCAVANEY, •ø V. P. MELESHKO, TM J. F. B. MITCHELL, •2 J.-J. MORCRETTE, •3 G. L. POTTER, 7 L. RIKUS, lø E. ROECKNER, TM J. F. ROYER, 5 U. SCHLESE, TM D. m. SHEININ, TM J. SLINGO, 15 A. ...
Dynamical seasonal forecasts of tropical storm frequency require robust and efficient algorithms for detection and tracking of tropical storms in atmospheric general circulation models (AGCMs). Tropical storms are generally detected when dynamic and thermodynamic variables meet specified criteria. Here, it is shown that objectively defined modeland basin-dependent detection criteria improve sim...
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