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RISMidwinter Suppression of Northern Hemisphere Storm Track Activity in the Real Atmosphere and in GCM Experiments
Publisher: American Meteorological Society
Abstract: The seasonal cycle of the North Pacific and the North Atlantic storm track activity is investigated on the basis of daily National Meteorological Center (now known as NCEP) upper-air analyses (1946?89) and of data from the ...
Faster Determination of the Intraseasonal Variability of Storm Tracks Using Murakami's Recursive Filter
Publisher: American Meteorological Society
Abstract: Murakami's recursive filter technique is suitable for computing storm tracks with reduced needs in data length, and it decreases computing time by the factor 3.5. It is shown that the storm tracks differ only slightly from ...
The Role of Ocean Dynamics for Low-Frequency Fluctuations of the NAO in a Coupled Ocean–Atmosphere GCM
Publisher: American Meteorological Society
Abstract: Variability at all timescales, including low-frequency variability, is found in the North Atlantic sector in a 300-yr control integration of the coupled ocean?atmosphere general circulation model (CGCM) ECHAM4/OPYC3. The ...
Changing Northern Hemisphere Storm Tracks in an Ensemble of IPCC Climate Change Simulations
Publisher: American Meteorological Society
Abstract: Winter storm-track activity over the Northern Hemisphere and its changes in a greenhouse gas scenario (the Special Report on Emission Scenarios A1B forcing) are computed from an ensemble of 23 single runs from 16 coupled ...