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RISThe Influence of a Near-Bottom Transport Parameterization on the Sensitivity of the Thermohaline Circulation
Publisher: American Meteorological Society
Abstract: The effect of a near-bottom transport scheme on the sensitivity of the thermohaline circulation is analyzed in a coupled model. In this model with idealized geometry of the Atlantic, it is shown that in the presence of a ...
Evidence for Two Distinct Modes of Large-Scale Ocean Circulation Changes over the Last Century
Publisher: American Meteorological Society
Abstract: Through its nonlinear dynamics and involvement in past abrupt climate shifts the thermohaline circulation (THC) represents a key element for the understanding of rapid climate changes. The expected THC weakening under ...
Decadal Variability in a Central Greenland High-Resolution Deuterium Isotope Record and Its Relationship to the Frequency of Daily Atmospheric Circulation Patterns from the North Atlantic Region
Publisher: American Meteorological Society
Abstract: The variability of an annual resolution deuterium time series from central Greenland is investigated in connection with the variability in the frequency of daily atmospheric circulation patterns in the North Atlantic region. ...
Sea Ice Effects on the Sensitivity of the Thermohaline Circulation
Publisher: American Meteorological Society
Abstract: The authors investigate the sensitivity of the thermohaline circulation (THC) with respect to a subpolar salinity perturbation. Such perturbation simulates a freshwater release caused by retreating glaciers or anomalous ...
Simulated Atlantic Multidecadal Oscillation during the Holocene
Publisher: American Meteorological Society
Abstract: he Atlantic multidecadal oscillation (AMO) and its possible change during the Holocene are examined in this study, using long-term simulations of the earth system model Community Earth System Models (COSMOS). A quasi-persistent ...
Noise-Induced Transitions in a Simplified Model of the Thermohaline Circulation
Publisher: American Meteorological Society
Abstract: A simplified box ocean model for the North Atlantic is used to study the influence of multiplicative short-term climate variability on the stability and long-term dynamics of the North Atlantic thermohaline circulation. A ...
A Hemispheric Mechanism for the Atlantic Multidecadal Oscillation
Publisher: American Meteorological Society
Abstract: The physical processes associated with the ?70-yr period climate mode, known as the Atlantic multidecadal oscillation (AMO), are examined. Based on analyses of observational data, a deterministic mechanism relying on ...
Hysteresis Behavior of the Atlantic Ocean Circulation Identified in Observational Data
Publisher: American Meteorological Society
Abstract: On the basis of the multidecadal component of a Fram Strait sea ice export reconstruction and on a sea surface temperature proxy for changes in the ocean circulation, a bifurcation diagram for two cycles of the Atlantic ...
Prediction of Spring Elbe Discharge Based on Stable Teleconnections with Winter Global Temperature and Precipitation
Publisher: American Meteorological Society
Abstract: The predictability of Elbe streamflow anomalies during spring is examined using previous winter sea surface temperature (SST), temperature over land (TT), and precipitation (PP) anomalies. Based on running correlation ...
Distinct Modes of Internal Variability in the Global Meridional Overturning Circulation Associated with the Southern Hemisphere Westerly Winds
Publisher: American Meteorological Society
Abstract: he internal variability of the global meridional overturning circulation (GMOC) in long-term integration of the earth system model Community Earth System Models (COSMOS) is examined in this study. Two distinct modes of the ...