Wolf-Gladrow Dieter A.

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Wolf-Gladrow
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Dieter A.
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  • Article
    A decade of incorporating social sciences in the Integrated Marine Biosphere Research Project (IMBeR): much done, much to do?
    (Frontiers Media, 2021-06-21) van Putten, Ingrid ; Kelly, Rachel ; Cavanagh, Rachel D. ; Murphy, Eugene J. ; Breckwoldt, Annette ; Brodie, Stephanie ; Cvitanovic, Christopher ; Dickey-Collas, Mark ; Maddison, Lisa ; Melbourne-Thomas, Jessica ; Arrizabalaga, Haritz ; Azetsu-Scott, Kumiko ; Beckley, Lynnath E. ; Bellerby, Richard G. J. ; Constable, Andrew ; Cowie, Greg ; Evans, Karen ; Glaser, Marion ; Hall, Julie A. ; Hobday, Alistair J. ; Johnston, Nadine M. ; Llopiz, Joel K. ; Mueter, Franz ; Muller-Karger, Frank E. ; Weng, Kevin ; Wolf-Gladrow, Dieter A. ; Xavier, José C.
    Successful management and mitigation of marine challenges depends on cooperation and knowledge sharing which often occurs across culturally diverse geographic regions. Global ocean science collaboration is therefore essential for developing global solutions. Building effective global research networks that can enable collaboration also need to ensure inter- and transdisciplinary research approaches to tackle complex marine socio-ecological challenges. To understand the contribution of interdisciplinary global research networks to solving these complex challenges, we use the Integrated Marine Biosphere Research (IMBeR) project as a case study. We investigated the diversity and characteristics of 1,827 scientists from 11 global regions who were attendees at different IMBeR global science engagement opportunities since 2009. We also determined the role of social science engagement in natural science based regional programmes (using key informants) and identified the potential for enhanced collaboration in the future. Event attendees were predominantly from western Europe, North America, and East Asia. But overall, in the global network, there was growing participation by females, students and early career researchers, and social scientists, thus assisting in moving toward interdisciplinarity in IMBeR research. The mainly natural science oriented regional programmes showed mixed success in engaging and collaborating with social scientists. This was mostly attributed to the largely natural science (i.e., biological, physical) goals and agendas of the programmes, and the lack of institutional support and push to initiate connections with social science. Recognising that social science research may not be relevant to all the aims and activities of all regional programmes, all researchers however, recognised the (potential) benefits of interdisciplinarity, which included broadening scientists’ understanding and perspectives, developing connections and interlinkages, and making science more useful. Pathways to achieve progress in regional programmes fell into four groups: specific funding, events to come together, within-programme-reflections, and social science champions. Future research programmes should have a strategic plan to be truly interdisciplinary, engaging natural and social sciences, as well as aiding early career professionals to actively engage in such programmes.
  • Article
    On the Southern Ocean CO2 uptake and the role of the biological carbon pump in the 21st century
    (John Wiley & Sons, 2015-09-23) Hauck, Judith ; Volker, Chrisoph ; Wolf-Gladrow, Dieter A. ; Laufkötter, Charlotte ; Vogt, Meike ; Aumont, Olivier ; Bopp, Laurent ; Buitenhuis, Erik T. ; Doney, Scott C. ; Dunne, John P. ; Gruber, Nicolas ; Hashioka, Taketo ; John, Jasmin G. ; Le Quere, Corinne ; Lima, Ivan D. ; Nakano, Hideyuki ; Seferian, Roland ; Totterdell, Ian J.
    We use a suite of eight ocean biogeochemical/ecological general circulation models from the Marine Ecosystem Model Intercomparison Project and Coupled Model Intercomparison Project Phase 5 archives to explore the relative roles of changes in winds (positive trend of Southern Annular Mode, SAM) and in warming- and freshening-driven trends of upper ocean stratification in altering export production and CO2 uptake in the Southern Ocean at the end of the 21st century. The investigated models simulate a broad range of responses to climate change, with no agreement on a dominance of either the SAM or the warming signal south of 44°S. In the southernmost zone, i.e., south of 58°S, they concur on an increase of biological export production, while between 44 and 58°S the models lack consensus on the sign of change in export. Yet in both regions, the models show an enhanced CO2 uptake during spring and summer. This is due to a larger CO2(aq) drawdown by the same amount of summer export production at a higher Revelle factor at the end of the 21st century. This strongly increases the importance of the biological carbon pump in the entire Southern Ocean. In the temperate zone, between 30 and 44°S, all models show a predominance of the warming signal and a nutrient-driven reduction of export production. As a consequence, the share of the regions south of 44°S to the total uptake of the Southern Ocean south of 30°S is projected to increase at the end of the 21st century from 47 to 66% with a commensurable decrease to the north. Despite this major reorganization of the meridional distribution of the major regions of uptake, the total uptake increases largely in line with the rising atmospheric CO2. Simulations with the MITgcm-REcoM2 model show that this is mostly driven by the strong increase of atmospheric CO2, with the climate-driven changes of natural CO2 exchange offsetting that trend only to a limited degree (∼10%) and with negligible impact of climate effects on anthropogenic CO2 uptake when integrated over a full annual cycle south of 30°S.