EBookClubs

Read Books & Download eBooks Full Online

EBookClubs

Read Books & Download eBooks Full Online

Book Thermohaline Circulation Stability in a Copuled Land ocean atmosphere Box Model

Download or read book Thermohaline Circulation Stability in a Copuled Land ocean atmosphere Box Model written by David Michael Sirkin and published by . This book was released on 1998 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Thermohaline Circulation Stability

Download or read book Thermohaline Circulation Stability written by Valerio Lucarini and published by . This book was released on 2005 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: Part I: A thorough analysis of the stability of the uncoupled Rooth inter-hemispheric 3-box model of thermohaline circulation (THC) is presented. The model consists of a northern high latitudes box, a tropical box, and a southern high latitudes box, which respectively correspond to the northern, tropical and southern Atlantic ocean. We adopt restoring boundary conditions for the temperature variables and flux boundary conditions for the salinity variables. We study how the strength of THC changes when the system undergoes forcings that are analogous to those of global warming conditions by applying to the equilibrium state perturbations to the moisture and heat fluxes into the three boxes. In each class of experiments, we determine, using suitably defined metrics, the boundary dividing the set of forcing scenarios that lead the system to equilibria characterized by a THC pattern similar to the present one, from those that drive the system to equilibria where the THC is reversed. Fast increases in the moisture flux into the northern high latitude box strongly inhibits the breakdown and can prevent it, in the case of slow increases in the Northern Hemisphere. Similarly, high rates of heat flux increase in the Northern Hemisphere destabilize the system more effectively than low ones, and increases in the heat fluxes in the Southern Hemisphere tend to stabilize the system.

Book Stability of the thermohaline circulation in analytical and numerical models

Download or read book Stability of the thermohaline circulation in analytical and numerical models written by Gerrit Lohmann and published by . This book was released on 1996 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Interhemispheric Thermohaline Circulation in a Coupled Box Model

Download or read book Interhemispheric Thermohaline Circulation in a Coupled Box Model written by Jeffery R. Scott and published by . This book was released on 1998 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: (Cont.) The model is augmented with explicit atmospheric eddy transport parameterizations, allowing examination of the eddy moisture transport (EMT) and eddy heat transport (EHT) feedbacks. As in the hemispheric model, the EMT feedback is always destabilizing, whereas the EHT may stabilize or destabilize. However, in this model whether the EHT stabilizes or destabilizes depends largely on the sign of the ocean salinity feedback and the size of the perturbation. Since oceanic heat transport in the southern hemisphere is weak, the northern hemisphere EMT and EHT feedbacks.

Book The Oceanic Thermohaline Circulation

Download or read book The Oceanic Thermohaline Circulation written by Hendrik M. van Aken and published by Springer Science & Business Media. This book was released on 2007-03-12 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a global hydrographic description of the thermohaline circulation, an introduction to the theoretical aspects of this phenomenon, and observational evidence for the theory. The hydrographic description and the observational evidence are based on data sources available via internet, mainly from the World Oceanographic Experiment (WOCE). The book also offers an introduction to hydrographic analysis and interpretation.

Book A Coupled Atmosphere ocean Model of Thermohaline Circulation Including Wind driven Gyre Circulation with an Analytical Solution

Download or read book A Coupled Atmosphere ocean Model of Thermohaline Circulation Including Wind driven Gyre Circulation with an Analytical Solution written by Elise Marie Black Olson and published by . This book was released on 2006 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: A parameter representing circulation due to wind forcing is added to the thermohaline circulation model of Marotzke (1996). The model consists of four boxes and is governed by a system of two differential equations governing the temperature and salinity differences between high latitude ocean and low latitude ocean boxes. The modified model is solved numerically for equilibrium solutions, and then solved analytically by the method of Krasovskiy and Stone (1998). At the maximum strength of wind-forced circulation studied, v = 5 x 10-11 s-1, a stable thermal mode equilibrium temperature difference of 25 K is calculated. Once v reaches a critical value, which is within the range of physically reasonable values, the stable haline mode equlibrium and unstable thermal mode equilibrium are no longer observed. It is concluded that strong wind-forced circulation suppresses the thermal mode equilibrium, but that more research is necessary to determine the degree to which this effect is present in the real world.

Book Ocean Circulation and Climate

Download or read book Ocean Circulation and Climate written by Sybren S. Drijfhout and published by Elsevier Inc. Chapters. This book was released on 2013-10-22 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conceptual models are a vital tool for understanding the processes that maintain the global ocean circulation, both in nature and in complex numerical ocean models. In this chapter we provide a broad overview of our conceptual understanding of the wind-driven circulation, the thermohaline circulation, and their transient behavior. While our conceptual understanding of the time-mean wind-driven circulation is now fairly mature, basic questions remain regarding the thermohaline circulation, for example, surrounding its overall strength and stability. Similarly, basic questions remain regarding the transient adjustment and internal variability of the ocean circulation.

Book A Coupled Zonally Averaged Atmosphere Ocean Model Variability of the Thermohaline Circulation

Download or read book A Coupled Zonally Averaged Atmosphere Ocean Model Variability of the Thermohaline Circulation written by Thomas F. Stocker and published by . This book was released on 1992 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two experiments with a recently developed zonally averaged climate model which includes the ocean's thermohaline circulation are performed. The first experiment simulates a global thermohaline circulation in which deep water is formed in the North Atlantic, flows as a deep current into the Pacific basin and then upwells. The water is returned as a near-surface flow through the Indian Ocean into the South Atlantic Gordon, 1986. The present model reproduces a global deep circulation under present-day forcing and shows that the zonal atmospheric water vapor transport is of importance. The second experiment studies the effect of glacial meltwater runoff at different latitudes on the thermohaline circulation, meridional heat flux and surface air temperature. Depending on the strength and position of the forcing anomaly, severe cooling can be observed in high northern latitudes. The mechanism may provide further insight into the Younger Dryas climate event.

Book Coupled Ocean Atmosphere Models

Download or read book Coupled Ocean Atmosphere Models written by J.C.J. Nihoul and published by Elsevier. This book was released on 1985-07-01 with total page 793 pages. Available in PDF, EPUB and Kindle. Book excerpt: The exchange of momentum, heat, moisture, gases (such as CO2 and O2) and salt between the atmosphere and the ocean is a phenomenon of paramount importance for the dynamics of the atmosphere and the ocean. With the pressing need for reliable climate forecast (e.g. to deal with severe food and energy problems) interactive ocean-atmosphere models have become one of the main objectives of geophysical fluid dynamics. This volume provides the first state-of-the-art review of interactive ocean-atmosphere modelling and its application to climates. The papers are by active and eminent scientists from different countries and different disciplines. They provide a up-to-date survey of major recent discoveries and valuable recommendations for future research.

Book Global Thermohaline Circulation and Ocean atmosphere Coupling

Download or read book Global Thermohaline Circulation and Ocean atmosphere Coupling written by Xiaoli Wang (Ph. D.) and published by . This book was released on 1997 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book A New Coupled Ocean atmosphere Box Model for Investigating the Ocean s Meridional Overturning Circulation and Climate Variability

Download or read book A New Coupled Ocean atmosphere Box Model for Investigating the Ocean s Meridional Overturning Circulation and Climate Variability written by and published by . This book was released on 2006 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: