Session OSM 02

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Image credit: Steven Phipps

Regional Climate Variability Over the Last 2000 Years

Convenors

Joelle Gergis, Guillaume Leduc, Jürg Luterbacher, Steven Phipps

Description

Several initiatives have focused recently on the climate of the past millennia, including the syntheses performed within the framework of the PAGES 2K network and the new model simulations performed according to the CMIP5/PMIP3 protocol. This session will be an opportunity to bring together the different groups involved to discuss the spatio-temporal structure of climate variability over the past 2000 years, the agreement between the models and the data, and the causes of the observed changes.

Key points to address will be the long-term changes over the whole period, the validity of the classical view of a transition between a Medieval Warm Period and a Little Ice Age in various regions, analysis of multi-annual climatic anomalies and the assessment of recent decades from a longer-term perspective.

> Session abstracts (pdf)

 

Talks and Posters

Talks

Friday, 15 February 11:00 - 12:30 and 14:00 - 15:30
Chair: Steven Phipps (part 1), Guillaume Leduc (part 2)

11:00 - 11:15
Antarctic temperature changes during the last millennium: evaluation of simulations and reconstructions (solicited talk)
H. Goosse, M. Braida, X. Crosta, A. Mairesse, V. Masson-Delmotte, P. Mathiot, R. Neukom, H. Oerter, G. Philippon, H. Renssen, B. Stenni, T. van Ommen, E. Verleyen

11:15 - 11:30
A 2000-year synthesis of marine-derived SST records: Results from the Ocean2k project

Working Group PAGES/Ocean 2k, Guillaume Leduc

11:30 - 11:45
Temperature and moisture variability across Africa during the last 2000 years

David J. Nash, Brian M. Chase, Asfawossen Asrat, Stefan W. Grab, Anne-Marie Lézine, Sharon E. Nicholson, Timothy M. Shanahan, Mohammed Umer, Dirk Verschuren

11:45 -12:00
A 2000-yr European Summer Temperature Reconstruction from the PAGES 2k Regional Network and Comparisons to Millennium-Length Forced Model Simulations

Jason Smerdon, Johannes Werner, Ulf Buntgen, Fredrik Charpentier Ljungqvist, Jan Esper, Laura Fernandez-Donado, J. Fidel Gonzalez-Rouco, Juerg Luterbacher, Danny McCarroll, Sebastian Wagner, Eugene Wahl, Heinz Wanner0, Eduardo Zorita

12:00 - 12:15
Mechanisms for European summer temperature response to solar forcing over the last millennium

Didier Swingedouw, Laurent Terray, Jérôme Servonnat, Joel Guiot

12:15 - 12:30
On the role of sea ice at the onset of the Little Ice Age

Flavio Lehner, Andreas Born, Christoph C. Raible, Thomas F. Stocker

14:00 - 14:15
Covariability of precipitation and sea surface temperature changes in Northern Chilean Patagonia during the last 2000 years

Sebastien Bertrand, Konrad Hughen, Julio Sepúlveda, Silvio Pantoja

14:15 - 14:30
Solar and volcanic forcing of the Southern Hemisphere climate over the past 1500 years
Steven Phipps, Duncan Ackerley, Josephine Brown, Mark Curran, Matt Fischer, Ailie Gallant, Joelle Gergis, Helen McGregor, Raphael Neukom,, Christopher Plummer, Samantha Stevenson, Tas van Ommen

14:30 - 14:45
Data and model perspectives on the Indian Ocean Zonal Mode over the past millennium

Bronwen Konecky, James Russell, Mathias Vuille, Yongsong Huang

14:45 - 15:00
Simulated and reconstructed Atlantic gyre circulation and its relationship with the North Atlantic Oscillation during the past 600 years

Odd Helge Otterå, Trond Dokken, Øyvind Lie, Helene R. Langehaug, Iselin Medhaug, Carin Andersson

15:00 -15:15
Shifting winds over the North Sea: how Anglo-Dutch documentary evidence enables the reconstruction of changes in prevailing wind during the Little Ice Age, 1630-1700

Dagomar Degroot

15:15 - 15:30
Reconstruction of tropical ocean SST trends during the last millennium: Results from the PAGES/Ocean2K project

Nerilie Abram, Jessica Tierney, Kevin Anchukatis, Cyril Giry, Kelly Kilbourne, Casey Saenger, Henry Wu, Jens Zinke, the PAGES/OceanK working group

Posters

Display: Friday, 15 February and Saturday, 16 February
Author attendance: Friday 16:00 -18:00
Chair: Steven Phipps, Guillaume Leduc

An Expanded Archive Facilitating Temperature Reconstructions of the Past Two Millennia from Paleo Proxies
David Anderson, Eugene Wahl, Anju Shah,, Bruce Bauer, Charles Buckner, Edward Gille, Carrie Morrill

On the tracking between air and ground temperatures at the CSIR-NGRI Geothermal Climate Change Observatory in south India
Vyasulu V. Akkiraju, Sukanta Roy

How subsurface temperature data may help to reconstruct past climate
Vladimir Cermak

Results of Long-Term Temperature-Time Monitoring at the Geothermal Observatory Sporilov, Prague (The Czech Republic)
Vladimir Cermak, Jan Safanda, Petr Dedecek, Milan Kresl

Last 2000 years environmental changes in Lake Pa Kho, Northeast Thailand
Sakonvan Chawchai, Barbara Wohlfarth, Akkaneewut Chabangborn, Maarten Blaauw, Paula J Reimer, Sherilyn Fritz, Malin Kylander, Ludvig Löwemark, Carl-Magnus Mörth

Tree-ring reconstructed boreal summer temperature anomalies for temperate East Asia since 800 C.E
Edward Cook, Paul Krusic, Kevin Anchukaitis, Brendan Buckley, Takeshi Nakatsuka, Masaki Sano, Asia 2k Group Members

Relationship between sea ice variability and atmospheric circulation during the last millennium in Antarctic Peninsula
Xavier Crosta, Loic Barbara, Sabine Schmidt, Johan Etourneau, Guillaume Massé

Two-thousand-year climate reconstruction of the Altai region with annual time resolution and the search of natural cycles with length from 3 to 1,000 years
Andrey Darin, Ivan Kalugin, Natalya Maksimova, Tatiana Markovich, Aleksandr Mordvinov, Dmitryi Ovchinnikov, Yakov Rakshun

Garabashi glacier (Central Caucasus) mass balance reconstructions inferred from tree-rings
Ekaterina Dolgova, Vladimir Matskovsky

Multi-annual variability of the Peruvian Oxygen Minimum Zone across the last millenium
Sophie Fleury, Philippe Martinez, Xavier Crosta, Karine Charlier, Olivier Ther, Thomas Blanz, Ralph Schneider

Dendrochronological studies in Nepal: Current status and future prospects
Narayan Prasad Gaire, Dinesh Raj Bhuju

High altitude tree-ring chronology from Malari, glacier, western Himalaya, India and its Climatic implications
Naveen Gandhi, H.P. Borgaonkar

Northern alpine ecosystems: is temperature one climate factor, influencing to spruce and larch light-ring formation?
Marina Gurskaya

Climatic and environmental changes in the Barents Sea during the last 2ka: response to variations in the Atlantic water inflow and NAO index
Elena Ivanova, Ivar Murdmaa, Bjørg Risebrobakken, Anne de Vernal

Paleorainfall variations in Southern India during the past 3154 years: Evidence from Pookot Lake record
Sandeep K, Shankar R, Warrier A K, Weijian Z, Xuefeng Lu

Unraveling the mysteries of chrysophyte resting stages – distribution of chrysophyte cysts in Finland
Sanna Korkonen

Isotope composition of the deep ice core from Elbrus Western plateau (the Caucasus)
Anna Kozachek, Vladimir Mikhalenko, Alexey Ekaykin

Lake Geneva sediments as archive for past environmental changes and human activity since the last 3000 years
Katrina Kremer, Juan Pablo Corella, Stéphanie Girardclos

Climatic signal in tree-ring width chronologies of European Russia: spatial change and perspectives for paleoclimatic reconstructions
Vladimir Matskovsky

Landscape [Palaeo]limnology: a multi-lake approach to understanding climate change and human disturbance in south-eastern Australia over the last 500 years
Keely Mills, Peter Gell

Hydrological and Climatological Changes in the Trondheimsfjord/Norway during the late Holocene inferred from Benthic Stable Isotopes and Dinocyst Assemblages
Gesa Milzer, J. Giraudeau, S. Schmidt, J. Faust, J. Knies, F. Eynaud, C. Rühlemann

2k ice core records from the Weddell Sea region of Antarctica
Robert Mulvaney

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

Pluvials, Droughts, Energetics, and the Mongol Empire
Neil Pederson, Amy Hessl, Baatarbileg Nachin, Oyunsanaa Byambasuren

Was the Medieval Warm Period Global? Evidences from the Gulf of Kachchh Coast, Western India
S. P. Prizomwala, Nilesh Bhatt, W Winkler, I Hajdas, A. M. Hirt

Correlation between pollen spectra and vegetation of southwestern Madhya Pradesh, India
M. F. Quamar, M.S. Chauhan

Dust, sea salt and moisture source variability in central Draonning Maud Land, East Antarctica during the last millennium: Role of Southern Annular Mode and El-Niño-Southern Oscillation
Waliur Rahaman, Meloth Thamban

Marine records of environmental change in the NE Atlantic (west coast of the Iberian Peninsula) over the past 150 years – a dinoflagellate cyst perspective
Sofia Ribeiro, Ana Amorim, Fátima Abrantes, Marianne Ellegaard

Reconstructing the past millennium of hydrologic variability in the Western Tropical Pacific using the hydrogen isotopes of lipid biomarkers
Julie Richey, Julian Sachs

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

Climate change in south India during the past two centuries inferred from geothermal and meteorological observations
Sukanta Roy, David S. Chapman

Variations in discharge from the Qilian mountains, northwest China, and its effect on the agricultural communities of the Heihe basin, over the last two millennia
Akiko Sakai, Mitsuyuki Inoue, Koji Fujita, Chiyuki Narama, Jumpei Kubota, Masayoshi Nakawo, Tandong Yao

The missing ocean - generation of high resolution records of sea surface temperature for the Common Era
Jeff Salacup, Timothy Herbert, Warren Prell

Millennial-length drought reconstructions for southern and central Fennoscandia
Kristina Seftigen, Edward Cook, Hans Linderholm, Jesper Björklund

Climatic response of tree-ring density parameters of conifers from western Himalaya, India. : Implications in dendroclimatology
Amar Sikder, Hemant Borgaonkar

Tree ring inferred seven century long Satluj river discharge records from the Indian Himalaya
Jayendra Singh, Ram R. Yadav

Do baobabs have annual tree rings for high-resolution palaeoclimatology? An approach using wood anatomy and stable isotopes
Franziska Slotta, Gerd Helle, Ingo Heinrich, Karl-Uwe Heußner, Elisha Shemang, Frank Riedel, Pavel Tarasov

Sensitivity of the forest-grassland ecotone to historical rainfall variation in pristine open woodland savanna of equatorial East Africa
Immaculate Ssemmanda, Vanessa Gelorini, Dirk Verschuren

Multiproxy evidence of environmental changes during last 1800 years recorded in coastal peatland of Puck Lagoon (southern Baltic)
Szymon Uscinowicz, Wojciech Jeglinski, Grazyna Miotk-Szpiganowicz, Jacek Pawlyta, Natalia Piotrowska, Mariusz Galka, Malgorzata Witak