Session OSM 04

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Image credit: Ed Hathorne

Climate Modes in the Past

Convenors

Ed Hathorne, Nerilie Abram, Manish Tiwari, Thomas Felis 

Description

Important climate modes such as the El Niño-Southern Oscillation (ENSO), the North Atlantic Oscillation (NAO), the Indian Ocean Dipole (IOD), the Pacific Decadal Oscillation (PDO), the Southern Hemisphere Annual Mode (SAM), and the monsoon systems are characterised by seasonal, inter-annual, decadal and centennial variability. Improving our understanding of these natural modes of variability is essential as they modulate droughts and floods on time scales relevant to society.

Reconstructing this high frequency variability is a challenge that can be addressed with analyses of annually banded archives such as coral skeletons, trees or bivalves as well as with ice cores, speleothems and various components of high accumulation rate or varved sediments. Other studies are applying geochemical analyses of many individual foraminifera shells to investigate seasonal and inter-annual variability in the past ocean. This session welcomes contributions investigating seasonal to centennial climate modes in the past, whether through modeling or high resolution proxy records extracted from marine or terrestrial climate archives. In particular, we encourage contributions combining different archives and climate model simulations.

> Session abstracts (pdf)

 

Talks and Posters

Talks

Saturday, 16 February 09:00 - 10:30
Chair: Ed Hathorne, Nerilie Abram, Manish Tiwari, Thomas Felis

09:00 - 09:15
Historical mega-droughts in the medieval Levant and Nile Valley

Mordechai Stein, Kate Raphael, Yochanan Kushnir 

09:15 - 09:30
Shifts in sea surface temperature on centennial to interannual timescales in the Gulf of Mexico since 1734 CE

Kristine DeLong, Christopher Maupin, Jennifer Flannery, Terrence Quinn, Ke Lin, Chuan-Chou Shen 

09:30 -09:45
Holocene history of ENSO in the Eastern Tropical Pacific reconstructed from Peruvian mollusk shells

Matthieu Carré, Sara Purca, Rommel Angeles Falcon, Julian P. Sachs 

09:45 - 10:00
The Tropical Pacific climate response to the changing forcing over the last glacial cycle

William Roberts, Paul Valdes 

10:00 -10:15
Regional differences in Indonesian rainfall and their relation to ENSO and IOD mode

Eva M. Niedermeyer, Mahyar Mohtadi, Alex L Sessions, Sarah Feakins 

10:15 -10:30
Proxy and model evidence for ENSO-mediated coupled Pan-Pacific drought and pluvial modes in North America and Asia

Kevin Anchukaitis, Edward Cook, Brendan Buckley, Jessica Tierney, Johann Jungclaus

Posters

Display: Friday, 15 February and Saturday, 16 February
Author attendance: Friday 14:00 - 15:30
Chair: Ed Hathorne, Nerilie Abram, Manish Tiwari, Thomas Felis

Climate variability and warming on the Antarctic Peninsula during the last millennium
Nerilie Abram, Robert Mulvaney, Jack Triest,, Eric Wolff, Sepp Kipfstuhl, Luke Trusel, Francoise Vimeux, Louise Fleet, Carol Arrowsmith

SST and Salinity Variations Associated with ENSO and IOD: Records from Indonesian Corals
Sri Yudawati Cahyarini, Intan Suci Nurhati, Miriam Pfeiffer, Jens Zinke, Mutiara Putri, Edvin Aldrian, Wolf-Chr. Dullo

Low frequency variability of the Arctic Oscillation (AO) and ENSO during the Holocene recorded in the spatial pattern of Northern Hemisphere extra-tropical temperatures
Basil Davis, Achille Mauri, Jed Kaplan, Christoph Raible, Flavio Lehner

Sub-seasonally resolved coral records of northern Red Sea climate during the Holocene and the last interglacial
Thomas Felis, Norel Rimbu, Saber Al-Rousan, Henning Kuhnert, Martin Kölling, Gerrit Lohmann

The Holocene climatic fluctuations in the Ukrainian steppe based on multidisciplinary study of the banded deposits of the lake Saki (Crimea)
Natalia Gerasimenko, Dmitriy Subetto, Volodymyr Bakhmutov, Lidia Dubis

Recent accumulation rate and impurity seasonality derived from NEEM firn cores
Gideon Gfeller, Matthias Bigler, Daiana Leuenberger, Olivia Mini, Hubertus Fischer

Developing South Atlantic Coral Paleoclimate Records from Rocas Atoll, Brazil
K. Halimeda Kilbourne, Ruy Kenji Papa de Kikuchi

Mid-Holocene regional reorganization of climate variability: Analyses of proxy data in the frequency domain
Carsten Lemmen, Kai W Wirtz, Gerrit Lohmann

The Summer North Atlantic Oscillation: character and teleconnections over the last millennium
Hans Linderholm, Jee-Hoon Jeong, Chris Folland, Baek-Min Kim, Tinghai Ou

Mid- to Late Holocene temperature and salinity changes in the Southwestern Atlantic
Renata Hanae Nagai, Cristiano M. Chiessi, Silvia H.M. Sousa, Henning Kuhnert, Stefan Mulitza, Michel M. Mahiques

Coral Records of South China Sea Throughflow’s Thermohaline Variations over the Last Century
Intan Suci Nurhati, Sri Yudawati Cahyarini, Ed Boyle

Multi-proxy study of a Lake from mainland Gujarat: understanding mid-late Holocene climatic fluctuations
Rachna Raj, Vandana Prasad, Anjum Farooqui, Anupam Sharma, Binita Phartiya, Supriyo Chakraborty, Subhash Bhandari, Abha Singh

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 Cheng, Franco Urbani 

Relationship between the variations of the location of the ITCZ in the West Pacific and ENSO in different climatic contexts
Marion Saint-Lu, Pascale Braconnot, Matthieu Lengaigne, Olivier Marti

High resolution Climatic record form the Kumaun Himalaya: A Speleothem study
Jaishri Sanwal, B.S. Kotlia, S.M. Ahmad, C.P. Rajendran, Kusala Rajendran

Late Quaternary climatic signals from the Kumaun lesser Himalaya: Evidence from a fluvio-lacustrine deposit
Jaishri Sanwal, C.P. Rajendran, M.S. Sheshshayee, Kusala Rajendran

New insights on last glacial ice-sheet dynamics and retreat deduced from Southeastern Weddell Sea sediment
Daniela Sprenk, Michael E. Weber, Gerhard Kuhn

Indian Ocean Dipole Mode and its Relation with the Indian Summer Monsoon Variability at Multi-Centennial to Millennial Timescales
Manish Tiwari, Siddhesh Nagoji, Kartik Thammisetti, Rahul Mohan

Sub-centennial to Centennial Scale Changes in Productivity in the Eastern Arabian Sea: Implications to the Indian Summer Monsoon Variability since Mid-Holocene
Manish Tiwari, Siddhesh Nagoji, Kartik Thammisetti

Response of Planktic Foraminifera to Oceanic Environmental Changes During Cenomanian - Turonian Transition in SE India
Raju Venkatachalapathy, G. Shanmugavalli