Paleoclimate, from observing modern processes to reconstructing the past: a tribute to Dick (Dirk) Kroon
Paleoclimate, from observing modern processes to reconstructing the past: a tribute to Dick (Dirk) Kroon
Editor(s): Gerald M. Ganssen, Simon Jung, Rebecca Rendle-Bühring, and Marit-Solveig Seidenkrantz

The reconstruction of ocean history, called palaeoceanography, is a relatively young scientific discipline initiated by the work of Cesare Emiliani and colleagues in the 50s of the last century by studying the stable oxygen and carbon isotopic composition of marine organisms. It had its climax in the 70s and 80s, for example in "The Fate of Fossil Fuel CO2 in the Oceans", a visionary book edited by Andersen and Malahoff published in 1977. Here, seminal contributions by people like Wally Broecker and Wolfgang Berger document the importance of quantifying the magnitude and rate of climatic change as well as variability in the past to better understand the effect of human action on the climate system leading to ongoing global warming. A broad spectrum of studies have been performed since then, ranging from process and modelling studies as well as laboratory culturing of marine organisms to so-called high-resolution studies in time intervals of rapid climate change during the Cenozoic with a focus on the Pleistocene and Holocene. For the latter studies, sediment cores taken during the DSDP and IODP expeditions are a natural archive for the ocean history of the past 60 million years. Dick Kroon already realized all this as a student and spent his whole life dedicated to this field of science in a passionate way.

For this special issue (SI) we invite contributions from colleagues of Dick who cooperated with him in his numerous projects in teaching and research. Topics should be related to (palaeo)oceanography and cover time intervals from the Holocene to the Cenozoic.

We will add a special appendix to this SI, to which people can contribute personal memories and stories about Dick.

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03 May 2024
Western Indian Ocean bottom water temperature calibration – are benthic foraminiferal Mg/Ca ratios a reliable palaeothermometry proxy?
Viktoria Larsson and Simon Jung
EGUsphere, https://doi.org/10.5194/egusphere-2024-979,https://doi.org/10.5194/egusphere-2024-979, 2024
Preprint under review for CP (discussion: open, 0 comments)
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16 Apr 2024
Improving the age constraints on the archeological record in Scladina Cave (Belgium): new speleothem U-Th ages and paleoclimatological data
Hubert Vonhof, Sophie Verheyden, Dominique Bonjean, Stéphane Pirson, Michael Weber, Denis Scholz, John Hellstrom, Hai Cheng, Xue Jia, Kevin Di Modica, Gregory Abrams, Marjan van Nunen, Joost Ruiter, Michèlle van der Does, Daniel Böhl, and Jeroen van der Lubbe
Clim. Past Discuss., https://doi.org/10.5194/cp-2024-27,https://doi.org/10.5194/cp-2024-27, 2024
Preprint under review for CP (discussion: open, 0 comments)
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18 Mar 2024
Sea-level and monsoonal control on the Maldives carbonate platform (Indian Ocean) over the last 1.3 million years
Montserrat Alonso-Garcia, Jesus Reolid, Francisco J. Jimenez-Espejo, Or M. Bialik, Carlos A. Alvarez Zarikian, Juan Carlos Laya, Igor Carrasquiera, Luigi Jovane, John J. G. Reijmer, Gregor P. Eberli, and Christian Betzler
Clim. Past, 20, 547–571, https://doi.org/10.5194/cp-20-547-2024,https://doi.org/10.5194/cp-20-547-2024, 2024
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13 Nov 2023
Biotic response of plankton communities to Middle to Late Miocene monsoon wind and nutrient flux changes in the Oman margin upwelling zone
Gerald Auer, Or M. Bialik, Mary-Elizabeth Antoulas, Noam Vogt-Vincent, and Werner E. Piller
Clim. Past, 19, 2313–2340, https://doi.org/10.5194/cp-19-2313-2023,https://doi.org/10.5194/cp-19-2313-2023, 2023
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15 Sep 2023
Tracing seasonal signals in dry/wet status for regions with simultaneous rain and heat from Eastern and Central Asia since the Last Glacial Maximum
Simin Peng, Yu Li, Zhansen Zhang, Mingjun Gao, Xiaowen Chen, Junjie Duan, and Yaxin Xue
Clim. Past Discuss., https://doi.org/10.5194/cp-2023-71,https://doi.org/10.5194/cp-2023-71, 2023
Revised manuscript under review for CP (discussion: final response, 4 comments)
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05 Apr 2024
A multi-model assessment of the early last deglaciation (PMIP4 LDv1): a meltwater perspective
Brooke Snoll, Ruza Ivanovic, Lauren Gregoire, Sam Sherriff-Tadano, Laurie Menviel, Takashi Obase, Ayako Abe-Ouchi, Nathaelle Bouttes, Chengfei He, Feng He, Marie Kapsch, Uwe Mikolajewicz, Juan Muglia, and Paul Valdes
Clim. Past, 20, 789–815, https://doi.org/10.5194/cp-20-789-2024,https://doi.org/10.5194/cp-20-789-2024, 2024
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25 Jul 2023
Magnetic properties and geochemistry of loess/paleosol sequences at Nowdeh section northeastern of Iran
Vahid Feizi, Ghasem Azizi, Habib Alimohammadian, and Maryam Mollashahi
Clim. Past Discuss., https://doi.org/10.5194/cp-2023-56,https://doi.org/10.5194/cp-2023-56, 2023
Revised manuscript under review for CP (discussion: final response, 7 comments)
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14 Mar 2023
A 600 kyr reconstruction of deep Arctic seawater δ18O from benthic foraminiferal δ18O and ostracode Mg ∕ Ca paleothermometry
Jesse R. Farmer, Katherine J. Keller, Robert K. Poirier, Gary S. Dwyer, Morgan F. Schaller, Helen K. Coxall, Matt O'Regan, and Thomas M. Cronin
Clim. Past, 19, 555–578, https://doi.org/10.5194/cp-19-555-2023,https://doi.org/10.5194/cp-19-555-2023, 2023
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