The South Atlantic: Present and Past Circulation

ISBN-13: 9783642803550 / Angielski / Miękka / 2012 / 644 str.

Gerold Wefer; Wolfgang H. Berger; Gerold Siedler

Opis

In the summer of 1994 (Aug. 15 - 18) about 220 oceanographers and paleoceanographers from Western Europe, the USA, Africa, South America, Russia and Lithuania met at Bremen University to present and discuss the results of recent research on present and past circulation in the South Atlantic. The symposium was organised by Gerold Siedler (University of Kiei) and Gerold Wefer (University of Bremen), assisted by a "Scientific Programme Committee," which included W.H. Berger, K. Herterich, N.G. Hogg, Y. Ikeda, J.H.F. Jansen, J.R.E. Luetjeharms, J. Merle, R.G. Peterson, and DJ. Webb. The local organisation was in the hands of Barbara Donner. A symposium on the South Atlantic seemed timely and appropriate because the results from a number of recent projects in oceanography and marine geosciences needed to be integrated into existing knowl edge. Thus, monitoring programs have been in operation since 1991 as part of the World Ocean Circu lation Experiment (WOCE). These programs included studies of the meridional water-mass and heat transports, the western boundary currents, and deep- and bottom-water transports in the Brazil Basin. Also comprehensive studies are being carried out in the context ofIGBP Core Projects PAGES (Past Global Changes) and JGOFS (Joint Global Ocean Flux Study), generating new data for the various current and production systems of the South Atlantic."

Recenzje

"...comprehensive, well-written, superbly illustrated, thoroughly documented and it will no doubt constitute a landmark in our understanding of the South Atlantic oceanography. It will have its place in all specialized libraries." Bulletin de la Societe belge de Geologie

Spis treści

Central Themes of South Atlantic Circulation.- On the Circulation of the South Atlantic Ocean.- Transient-Tracer Information on Ventilation and Transport of South Atlantic Waters.- The Circulation and its Variability of the South Atlantic Ocean: First Results from the TOPEX/POSEIDON Mission.- The Zonal WOCE Sections in the South Atlantic.- South Atlantic Heat Transport at 11°S.- Comment on the South Atlantic’s Role in the Global Circulation 121 -.- The Exchange of Water between the South Indian and South Atlantic Oceans.- The Benguela: Large Scale Features and Processes and System Variability.- The Southern Boundary of the South Atlantic.- Antarctic Intermediate Water in the South Atlantic.- Lagrangian Measurements in the Malvinas Current.- Circulation in the Deep Brazil Basin.- The Deep Water Regime in the Equatorial.- Chlorofluoromethanes in the Deep Equatorial Atlantic Revisited.- Modelling the Ocean Circulation in the South Atlantic: A Strategy for Dealing with Open Boundaries.- Mass and Heat Transports in the South Atlantic Derived from Historical Hydrographic Data.- Long-term Observation of Particle Fluxes in the Eastern Atlantic: Seasonality, Changes of Flux with Depth and Comparison with the Sediment Record.- Silica Signals in the South Atlantic.- On the Bathymetry of the Hunter Channel.- Expeditions into the Past: Paleoceanographic Studies in the South Atlantic.- Inverse Modelling of the Glacial Atlantic CirculationSystem: Investigation of Data Requirements.- Chemical Hydrography of the South Atlantic During the Last Glacial Maximum: Cd vs. ?13C.- High Latitude Deep Water Sources During the Last Glacial Maximum and the Intensity of the Global Oceanic Circulation.- Late Quaternary Surface Circulation in the South Atlantic: The Stable Isotope Record and implications for Heat Transport and Productivity.- Climate Feedback and Pleistocene Variations in the Atlantic South Equatorial Current.- Late Quaternary Surface Temperatures and Productivity in the East-Equatorial South Atlantic: Response to Changes in Trade/Monsoon Wind Forcing and Surface Water Advection.- Late Quaternary Movements of the Angola- Benguela Front, SE Atlantic, and Implications for Advection in the Equatorial Ocean.- Late Quaternary Deep Circulation in the Western Equatorial Atlantic.- Late Quaternary Deep Water Circulation in the South Atlantic: Reconstruction from Carbonate Dissolution and Benthic Stable Isotopes.- Clay Mineral Fluctuations in Late Quaternary Sediments of the Southeastern South Atlantic: Implications for Past Changes of Deep Water Advection.

O autorze

As connecting link between the Antarctic and the North Atlantic, the South Atlantic plays an important role in the distribution of heat in the North Atlantic and in the biogeochemical budget of all oceans. Oceanographers and geologists as well as micropaleontologists and meteorologists will find a wealth of information in this