Session OSM 03
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Image credit: Rimbu et al 2007 and NASA Visible Earth 1991 |
New Approaches to Data Assimilation and Data-Model Comparison
Convenors
Basil Davis, Daniel Ariztegui, Simon Brewer, Hugues Goosse
Description
The past provides a proving ground for models outside of our modern experience, and against which predictions can be made and evaluated using the palaeoenvironmental record. On the other hand, models can also help us to understand the signal recorded in proxies. Finally, by combining information provided by models and proxy records through data assimilation, new insights into the dynamics of the system can be obtained.
This session is focused on how data and models can be used jointly to test our understanding of the Earth system and thereby reduce the uncertainties attached to predicting future environmental change. Model data-comparisons and data assimilation experiments using models of climate, ocean, cryosphere, land-surface and other palaeoenvironmental processes at the global to regional scale over any time-scale in the past are welcome.
Talks and Posters
Talks
Wednesday, 13 February 11:00 -11:45
Chair: Hugues Goosse
11:00 - 11:15
Assimilation of time-averaged pseudo and real proxies for climate reconstruction
Nathan Steiger, Gregory Hakim, Eric Steig, David Battisti, Gerard Roe
11:15 - 11:30
How well can models simulate mid-Holocene & Last Interglacial climate? - Four important data-model discrepancies
Basil Davis, Achille Mauri, Jed Kaplan, Simon Brewer, Konrad Gajewski, André Viau, Norbert Kuhl & Haibin Wu
11:30 - 11:45
Lake Isotope – Climate Model comparisons: an iterative approach to improved palaeoclimate understanding?
Matthew Jones, Steven Phipps
Posters
Display: Wednesday, 13 February and Thursday, 14 February
Author attendance: Wednesday 16:00 - 18:00
Chair: Hugues Goosse
Contrasting changes in vegetation and West African wind systems over the west African Sahel region during Heinrich Stadial 1
Ilham Bouimetarhan, Matthias Prange, Enno Schefuß, Lydie Dupont, Jörg Lippold, Stefan Mulitza, Karin Zonneveld
Oceanographic data-model comparisons: what exactly are we doing? A late Miocene case study
Catherine Bradshaw, Rachel Flecker, Daniel Lunt, Ana Christina Ravelo, Eirik Vinje Galaasen, Howard Spero
Exploring the causes of enhanced recent growth in high-elevation bristlecone pines using stable isotope dendroclimatology
Rory Clisby, Iain Robertson, Mary Gagen, Charles Hipkin
Megadroughts in Millennium-Length Forced and Control Simulations and their Comparison to the Proxy-derived North American Drought Atlas
Sloan Coats, Jason Smerdon, Richard Seager, Benjamin Cook, J. Fidel Gonzalez-Rouco
Integrated climate-proxy modeling using the isotope-enabled SPEEDY-IER with a focus on tropical climate
Sylvia Dee, David Noone, Julien Emile-Geay, Nikolaus Buenning
Reconstructions of the climate states over last centuries using particle filtering
Svetlana Dubinkina, Hugues Goosse, Violette Zunz, Yoann Sallaz-Damaz
Data assimilation of climate proxies in a set of 30 model simulations using the Ensemble Kalman Filter
Jörg Franke, Jonas Bhend, Stefan Brönnimann
Stable Water Isotopes in a Coupled Atmosphere-Vegetation Model: Comparison of simulation results with observational and proxy data
Barbara Haese, Martin Werner, Britta Beckmann, Gerrit Lohmann, Enno Schefuß
The global ocean during the mid-Holocene: A multi-sensor sea surface temperature reconstruction (MARGO-6k) and evaluation of the CMIP5 mid-Holocene simulations
Ines Hessler, Sandy Harrison, Michal Kuchera, Stefan Mulitza, Claire Waelbroeck, data contributes MARGO-k
Modelling oxygen and deuterium isotopes over the last 120 ka in a fully-coupled atmosphere-ocean GCM
Ruza Ivanovic, Paul Valdes, Joy Singarayer
A simple approach to assessing the accuracy of age models from Holocene sediment cores
Darrell Kaufman, Nicholas Balascio, Nicholas McKay, Hanna Sundqvist
Using data assimilation to estimate the consistency between different proxies and model results
Aurélien Mairesse, Hugues Goosse, Pierre Mathiot, Svetlana Dubinkina
The importance of external forcing on the climate of the last millennium
Andrew Schurer, Gabriele Hegerl, Simon Tett, Michael Mann, Steven Phipps
Holocene thermal maximum in Europe: data and model simulations
Heikki Seppä, Hans Renssen, Oliver Heiri, Thierry Fichefet, Hugues Goosse, Didier M. Roche
Triple water vapor isotopic (H218O, HD16O, H217O) measurements above the Greenland Ice Sheet and importance for interpretation of ice cores
Hans Christian Steen-Larsen, Renato Winkler, Fredéric Prié, Amaelle Landais, Valérie Masson-Delmotte, Camille Risi, Barbara Stenni
Evaluation of historical climate simulation with High-resolution global atmospheric model
Sumin Woo, Jai-Ho Oh, Kyoung-Min Lee
