Objective Boron isotope studies and box modelling lent strong support to the hypothesis that pore water driven calcite dissolution during glacial periods can account for a significant part of the observed G-IG change in atmospheric pCO2. We propose to test the validity of this scenario by combining a down core study with numerical modelling . So far , no one has used all available proxies on the same samples to reconstruct the ocean carbonate chemistry. Such a study will help to identify natural sources and sinks of CO2. Knowledge of the nature and amplitude of fluctuations in the past can be used to assess the potential range of variations in the present ocean. Present day pCO2 increase, acidifies the ocean and reduces the calcification capacity of oceanic carbonate producers, introducing a mechanism for pCO2 decrease. We propose to quantify this negative feedback. Fields of science natural scienceschemical sciencesinorganic chemistryinorganic compoundsnatural scienceschemical sciencesinorganic chemistrymetalloidsnatural sciencesearth and related environmental sciencesatmospheric sciencesclimatologyclimatic changes Programme(s) FP5-EESD - Programme for research, technological development and demonstration on "Energy, environment and sustainable development, 1998-2002" Topic(s) 1.1.4.-2. - Key action Global Change, Climate and Biodiversity Call for proposal Data not available Funding Scheme CSC - Cost-sharing contracts Coordinator ALFRED WEGENER INSTITUTE FOR POLAR AND MARINE RESEARCH Address Columbusstrasse 27568 Bremerhaven Germany See on map Links Website Opens in new window EU contribution € 0,00 Participants (5) Sort alphabetically Sort by EU Contribution Expand all Collapse all NETHERLANDS INSTITUTE FOR SEA RESEARCH Netherlands EU contribution € 0,00 Address Landsdiep 4 1790 AB Den burg See on map UNIVERSITE DE LIEGE*ULG Belgium EU contribution € 0,00 Address Place du 20 aout 7 4000 Liege See on map UNIVERSITY OF SOUTHAMPTON United Kingdom EU contribution € 0,00 Address Southampton ocenagraphic centre, european way SO14 3ZH Southampton See on map University of Cambridge United Kingdom EU contribution € 0,00 Address Downing street CB2 3EQ Cambridge See on map WESTFAELISCHE WILHELMS - UNIVERSITAET MUENSTER Germany EU contribution € 0,00 Address Wilhelm-klemm-strasse 10 48149 Muenster See on map
