التفاصيل البيبلوغرافية
| العنوان: |
Climate Regime Variability for Past and Present Time Slices Simulated by the Fast Ocean Atmosphere Model. |
| المؤلفون: |
Handorf, Dörthe, Dethloff, Klaus, Marshall, Andrew G., Lynch, Amanda |
| المصدر: |
Journal of Climate; Jan2009, Vol. 22 Issue 1, p58-70, 13p, 3 Maps |
| مصطلحات موضوعية: |
ATMOSPHERIC circulation, CLIMATE change research, ORTHOGONAL functions, HOLOCENE paleoclimatology, CLIMATOLOGY, LAST Glacial Maximum |
| مصطلحات جغرافية: |
NORTHERN Hemisphere |
| مستخلص: |
This paper presents an analysis of Northern Hemisphere climate regime variability for three different time slices, simulated by the Fast Ocean Atmosphere Model (FOAM). The three time slices are composed of present-day conditions, the mid-Holocene, and the Last Glacial Maximum (LGM). Climate regimes have been determined by analyzing the structure of a spherical probability density function in a low-dimensional state space spanned by the three leading empirical orthogonal functions. This study confirms the ability of the FOAM medium-resolution climate model to reproduce low-frequency climate variability in the form of regime-like behavior. Three to four regimes have been detected for each time slice. Compared with present-day conditions, new climate regimes appeared for the LGM. For the mid-Holocene, which had slightly different boundary conditions and external forcings than the present-day simulation, the frequency of occurrence of the regimes was altered while only slight changes were found in the structure of some regimes. [ABSTRACT FROM AUTHOR] |
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