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RISForecast Skill and Predictability of Observed Atlantic Sea Surface Temperatures
Publisher: American Meteorological Society
Abstract: n empirical statistical model is constructed to assess the forecast skill and the linear predictability of Atlantic Ocean sea surface temperature (SST) variability. Linear inverse modeling (LIM) is used to build a dynamically ...
Optimal Surface Excitation of the Thermohaline Circulation
Publisher: American Meteorological Society
Abstract: The amplification of thermohaline circulation (THC) anomalies resulting from heat and freshwater forcing at the ocean surface is investigated in a zonally averaged coupled ocean?atmosphere model. Optimal initial conditions ...
Nonnormal Amplification of the Thermohaline Circulation
Publisher: American Meteorological Society
Abstract: A simple zonally averaged coupled ocean?atmosphere model, with a relatively high resolution in the meridional direction, is used to examine physical mechanisms leading to transient amplification of thermohaline circulation ...
A Conceptual Model of Ocean Heat Uptake under Climate Change
Publisher: American Meteorological Society
Abstract: conceptual model of ocean heat uptake is developed as a multilayer generalization of Gnanadesikan. The roles of Southern Ocean Ekman and eddy transports, North Atlantic Deep Water (NADW) formation, and diapycnal mixing in ...
Radiative Effects of Clouds and Water Vapor on an Axisymmetric Monsoon
Publisher: American Meteorological Society
Abstract: Monsoons are summertime circulations shaping climates and societies across the tropics and subtropics. Here the radiative effects controlling an axisymmetric monsoon and its response to climate change are investigated using ...
Stochastic Subgrid-Scale Ocean Mixing: Impacts on Low-Frequency Variability
Publisher: American Meteorological Society
Abstract: AbstractIn global ocean models, the representation of small-scale, high-frequency processes considerably influences the large-scale oceanic circulation and its low-frequency variability. This study investigates the impact ...
Nonnormal Thermohaline Circulation Dynamics in a Coupled Ocean–Atmosphere GCM
Publisher: American Meteorological Society
Abstract: Using the GFDL coupled atmosphere?ocean general circulation model CM2.1, the transient amplification of thermohaline circulation (THC) anomalies due to its nonnormal dynamics is studied. A reduced space based on empirical ...
The Dynamical Influence of the Atlantic Multidecadal Oscillation on Continental Climate
Publisher: American Meteorological Society
Abstract: AbstractThe Atlantic multidecadal oscillation (AMO) in sea surface temperature (SST) has been shown to influence the climate of the surrounding continents. However, it is unclear to what extent the observed impact of the ...
The Role of Ocean Dynamics in the Optimal Growth of Tropical SST Anomalies
Publisher: American Meteorological Society
Abstract: The role of ocean dynamics in optimally exciting interannual variability of tropical sea surface temperature (SST) anomalies is investigated using an idealized-geometry ocean general circulation model. Initial temperature ...
Frequency Domain Multimodel Analysis of the Response of Atlantic Meridional Overturning Circulation to Surface Forcing
Publisher: American Meteorological Society
Abstract: he dynamics of the Atlantic meridional overturning circulation (AMOC) vary considerably among different climate models; for example, some models show clear peaks in their power spectra while others do not. To elucidate ...