Session YSM 02

YSM2_lg
Image credit: T. Kiefer

Regional Climate Dynamics

Convenors

Ines HesslerOlga Solomina

Description

This session seeks to achieve a better understanding of past regional climatic and environmental dynamics through comparison of reconstructions and model simulations. Presentations contribute towards a global coverage of high-resolution, well-dated paleoclimatic data, reconstructions of past climate-state parameters (e.g., temperature, precipitation, atmospheric pressure fields), a better understanding of past modes of climate variability and their teleconnections, and of rapid and extreme climate events at the regional scale. The session aims to promote data-model comparisons. Timescales covered encompass the last 130 ka, in particular the time streams of the last glacial-interglacial cycle, the Holocene, and the last 2 ka.

> Session abstracts (pdf)

Talks and Posters

Talks

Monday, 11 February 12:30 - 13:30 and 15:00 -15:30
Chair: Olga Solomina (1 part) and Ines Hessler (2 part)

12:30 - 12:45
Sub-centennial Holocene fluctuations of Atlantic water inflow and sea ice distribution in the western Barents Sea, European Arctic

Sarah Berben, Katrine Husum, Patricia Cabedo Sanz, Simon Belt

12:45 - 13:00
Sahel megadrought during Heinrich Stadial 1: Evidence for a three-phase evolution of the low- andmid-level West African wind system

Ilham Bouimetarhan, Matthias Prange, Enno Schefuß, Lydie Dupont, Jörg Lippold, Stefan Mulitza, Karin Zonneveld

13:00 - 13:15
Precession forcing of fire activity in subtropical southern Africa over the past 170,000 years

Anne-Laure Daniau, Maria Fernanda Sánchez Goñi, Philippe Martinez, Dunia H. Urrego, Viviane Bout-Roumazeilles, Stéphanie Desprat, Jennifer Marlon

13:15 - 13:30
Regional monsoon dynamics from small but complex paleoclimate networks
Kira Rehfeld, Bedartha Goswami, Nora Molkenthin, Franziska Lechleitner, Sebastian F.M. Breitenbach, OlaKwiecien, Norbert Marwan, Jürgen Kurths

15:00 - 15:15
Fluctuations in the Indonesian-Australian Monsoon: New insights from the Flores stalagmite record

Nick Scroxton, Linda Ayliffe, Mike Gagan, John Hellstrom, Wahyoe Hantoro, Hamdi Rifai, Bambang Suwargardi

15:15 - 15:30
History of terrestrial precipitation in the Amazon basin (South America) during the last 240 ka

Aline Govin, Janis Ahrens, David Heslop, Matthias Zabel, Stefan Mulitza, Cristiano M. Chiessi

Posters

Display: Monday, 11 February and Tuesday, 12 February
Author attendance: Tuesday 11:30 - 12:30
Chair: Ines Hessler and Olga Solomina

A 12,000-Year-Long, Annually-Resolved Varve Record Spanning the Last Interglacial from Lake Bosumtwi, Southern Ghana
Nicholas McKay, Jonathan Overpeck, Timothy Shanahan, John Peck, Clifford Heil, John King, Chris Scholz

A 65 ka Stalagmite Paleoclimate Record from Northern Venezuela: A Record of Caribbean Climate Change
Julie B. Retrum, Luis A. González, R. Lawrence Edwards, Stacy M. Tincher, Hai Chang, F. Urbani

Antarctic linkages to the deep water flow variability during the past 95000 years in the Indian sector ofthe Southern Ocean
M C Manoj, Meloth Thamban, Rahul Mohan

Contrasting paleoceanographic conditions off western Sahel during Heinrich Stadial 1: A new conceptfor productivity development revealed by dinoflagellate cysts
Ilham Bouimetarhan, Jeroen Groeneveld, Matthias Zabel, Lydie Dupont, Karin Zonneveld

Data and model perspectives on the Indian Ocean Zonal Mode over the past millennium
Bronwen Konecky, James Russell, Mathias Vuille, Yongsong Huang

Deglaciation in the tropical Indian Ocean driven by interplay between the regional monsoon and global teleconnections
Rajeev Saraswat, David Lea, Rajiv Nigam, Andreas Mackensen, Dinesh Naik

Does upstream Agulhas Current variability reflect inferred changes in Agulhas Leakage?
Margit H. Simon, Ian R. Hall, Kristina L. Arthur, Ben Loveday, Frank J. C. Peeters, Stephen Barker, Martin Ziegler

Eastern Andean Patagonia (40º-51ºS) vegetation and climate variability during the Holocene related tosouthern westerlies fluctuations
Gonzalo Sottile, M. Alejandra Marcos, Florencia Bamonte, Marcos Echeverría, M. Eugenia de Porras, MarcelaTonello, M. Virginia Mancini, M. Martha Bianchi

Genetic differentiation in the Patagonian-fueguian rodents Abrothrix olivaceus and A. longipilis (Rodentia: Cricetidae) associated to the major Pleistocene-Holocene climatic changes: Usingmolecular data to the global changing assessment
Matias Mora

Hydrological and Climatological Changes in the Trondheimsfjord/Norway during the late Holocene inferred from Benthic Stable Isotopes and Dinocyst Assemblages
G. Milzer, J. Giraudeau, S. Schmidt, J. Faust, J. Knies, F. Eynaud, C. Rühlemann
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Incidence of the most important climatic perturbations of the late Pleistocene and early Holocene onthe phylogeography and population genetics of the Talas’s tuco-tuco (Ctenomys talarum) from theArgentinean Pampas
Matias Mora

Late Holocene variations from Lake Rutundu, mount Kenya
Christine Omuombo, Daniel Olago, Stephen Rucina, David Williamson

Late Holocene vegetation vis á vis climate dynamics from Hasila wetland, western Assam, NortheastIndia: Pollen and diatom record
Swati Dixit, Samir Kumar Bera

Late Quaternary paleoceanography of the southwestern Indian Ocean
Dinesh K. Naik, R. Saraswat, N. Khare, A.C. Pandey, A. Mackensen, R. Nigam

Late-Holocene climate variability in southern New Zealand: A multi-proxy study of laminated lake sediments from Lake Ohau to reconstruct regional climate
Heidi Roop, Marcus Vandergoes, Richard Levy, Gavin Dunbar, Sean Fitzsimons, Jamie Howarth, Bob Ditchburn, Gary Wilson, Jennifer Purdie

Mangrove and coastal environment changes during the Holocene in the Mahanadi Delta, India
Shilpa Singh

Marine and terrestrial response of the Black Sea/Northern Anatolia region to rapid climatic variability during the marine isotope stage 3
Lyudmila S. Shumilovskikh, Helge W. Arz, Hermann Behling

New evidence of Holocene climate and atmospheric circulation variability, inferred from lacustrine stable isotope records from Gotland, southern Sweden
Francesco Muschitiello, Dan Hammarlund, Barbara Wohlfarth

New Insights on Last Glacial Ice-sheet Dynamics and Retreat Deduced from Southeastern Weddell Sea Sediment
Daniela Sprenk, Michael E. Weber, Gerhard Kuhn

Novel precipitation isotope records address a long-standing debate about East Asian cave oxygen isotope records
Elizabeth Thomas, Steve Clemens, Tim Herbert, Yongsong Huang, Warren Prell, Jaap Sinninghe-Damsté, Youbin Sun

Permafrost and climate development in the northern Yukon since the LGM – East Beringia vs. Laurentide Ice
Michael Fritz, Ulrike Herzschuh, Wayne Pollard, Hugues Lantuit
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Reconstruction of late Quaternary climate changes as derived from a pollen record from Lahaul Himalaya, Himachal Pradesh, India
Suman Rawat, A. K. Gupta, S. J. Sangode, N. R. Phadtare, H. C. Nainwal

Southern Westerlies postglacial dynamics at Central Chilean Patagonia (Rio Cisnes valley, 44°S)
María Eugenia de Porras, Antonio Maldonado, Flavia Quintana, César Méndez, Omar Reyes

The late Pleistocene-Holocene climatic transition record in the alluvial sequences of central Argentina (33-38°S)
Mehl Adriana, Zárate Marcelo