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RISUnderstanding Equatorial Atlantic Interannual Variability
Publisher: American Meteorological Society
Abstract: An observational-based analysis of coupled variability in the equatorial Atlantic and its seasonality is presented. Regression analysis shows that the three elements of the Bjerknes positive feedback exist in the Atlantic ...
Tropical Atmosphere–Ocean Interactions in a Conceptual Framework
Publisher: American Meteorological Society
Abstract: Statistical analysis of observations (including atmospheric reanalysis and forced ocean model simulations) is used to address two questions: First, does an analogous mechanism to that of El Niño?Southern Oscillation (ENSO) ...
Will Extratropical Storms Intensify in a Warmer Climate?
Publisher: American Meteorological Society
Abstract: Extratropical cyclones and how they may change in a warmer climate have been investigated in detail with a high-resolution version of the ECHAM5 global climate model. A spectral resolution of T213 (63 km) is used for two ...
On Sub-ENSO Variability
Publisher: American Meteorological Society
Abstract: Multichannel singular spectrum analysis (MSSA) of surface zonal wind, sea surface temperature (SST), 20° isotherm depth, and surface zonal current observations (between 1990 and 2004) identifies three coupled ocean?atmosphere ...
Subtropical Forcing of Tropical Pacific Climate and Decadal ENSO Modulation
Publisher: American Meteorological Society
Abstract: The relative impact of the subtropical North and South Pacific Oceans on the tropical Pacific climate mean state and variability is estimated using an ocean?atmosphere?sea ice coupled general circulation model. Tailored ...
Retrospective El Niño Forecasts Using an Improved Intermediate Coupled Model
Publisher: American Meteorological Society
Abstract: A new intermediate coupled model (ICM) is presented and employed to make retrospective predictions of tropical Pacific sea surface temperature (SST) anomalies. The ocean dynamics is an extension of the McCreary baroclinic ...
Nonstationarity in the NAO–Gulf Stream SST Front Interaction
Publisher: American Meteorological Society
The Impact of North Atlantic–Arctic Multidecadal Variability on Northern Hemisphere Surface Air Temperature
Publisher: American Meteorological Society
Abstract: The twentieth-century Northern Hemisphere surface climate exhibits a long-term warming trend largely caused by anthropogenic forcing, with natural decadal climate variability superimposed on it. This study addresses the ...
An Empirical Parameterization of Subsurface Entrainment Temperature for Improved SST Anomaly Simulations in an Intermediate Ocean Model
Publisher: American Meteorological Society
Abstract: An empirical model for the temperature of subsurface water entrained into the ocean mixed layer (Te) is presented and evaluated to improve sea surface temperature anomaly (SSTA) simulations in an intermediate ocean model ...
Effects of Ocean Biology on the Penetrative Radiation in a Coupled Climate Model
Publisher: American Meteorological Society
Abstract: The influence of phytoplankton on the seasonal cycle and the mean global climate is investigated in a fully coupled climate model. The control experiment uses a fixed attenuation depth for shortwave radiation, while the ...