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SCrIPT SIGNED

Stable Chromium Isotopes as a Productivity Tracer

Total Cost €

0

EC-Contrib. €

0

Partnership

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 SCrIPT project word cloud

Explore the words cloud of the SCrIPT project. It provides you a very rough idea of what is the project "SCrIPT" about.

constrained    ecosystem    climate    temporal    governing    driver    sensitivities    global    potentially    modulating    fractionation    atmosphere    interior    mediated    proxy    strength    cycle    biological    phytoplankton    earth    isotopes    trace    oceanic    thoroughly    declining    explore    mechanism    export    nonetheless    oxygen    tended    stable    pump    remineralization    capacity    point    elucidating    buffering    refining    observations    cr    redox    interglacial    subtle    chromium    despite    variations    mechanisms    concentrations    biogeochemical    substantial    culture    geological    tracer    exchange    experiments    regulating    reconstruct    investigations    pivotal    appraise    slower    water    oscillations    overarching    gathered    history    atmospheric    subsequently    dioxide    spatial    sedimentary    poorly    climatic    glacial    significance    ocean    evolution    column    bcp    carbon    co2    anthropogenic    organic    toward    isotopic    productivity    variability    dominant    framework    calibration    multidisciplinary    marine   

Project "SCrIPT" data sheet

The following table provides information about the project.

Coordinator
UNIVERSITAET BERN 

Organization address
address: HOCHSCHULSTRASSE 6
city: BERN
postcode: 3012
website: http://www.unibe.ch

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Switzerland [CH]
 Total cost 1˙997˙625 €
 EC max contribution 1˙997˙625 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2018-COG
 Funding Scheme ERC-COG
 Starting year 2019
 Duration (year-month-day) from 2019-05-01   to  2024-04-30

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    UNIVERSITAET BERN CH (BERN) coordinator 1˙997˙625.00

Map

 Project objective

The overall concept of this proposal is to investigate the main biogeochemical processes modulating spatial and temporal changes in marine export productivity, and assess their role in regulating atmospheric carbon dioxide (CO2) concentrations, both under present conditions and in the geological past. The exchange of CO2 between the atmosphere and ocean interior mediated by the oceanic ecosystem is a pivotal mechanism modulating the global carbon cycle, and thus, a substantial driver of the Earth’s climatic evolution.

The overarching objective of this research proposal is to develop a novel proxy to trace changes in the global strength of the marine biological carbon pump (BCP) based on stable Chromium (Cr) isotopes. Despite its significance for the global carbon cycle, the BCP is still poorly constrained. This project will explore a tracer that has recently been developed to investigate the rise of atmospheric oxygen in the early history of the Earth and develop it thoroughly through a comprehensive, multidisciplinary calibration program and apply it to the much more subtle redox variations associated with organic matter remineralization in the ocean. The proposed approach includes phytoplankton culture experiments, water-column investigations and sedimentary analysis and will aim at elucidating the mechanisms governing the reduction of Cr and its associated isotopic fractionation. The proxy will subsequently be used to reconstruct export production variability in the past and assess its role in modulating glacial/interglacial climate oscillations. These past changes tended to be much slower than the current, anthropogenic change. Nonetheless, they can help to appraise sensitivities and point toward potentially dominant mechanisms of change. The observations gathered within the framework of this research program will enable refining the evolution of the marine carbon cycle and the rapidly declining buffering capacity of the ocean.

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