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Dissemination - Arctic Climate Change,
Economy and Society




Key figures


WP6 leader

Nathalie Sennechael has a backgroung in Physical Oceanography (doctor of the University Pierre et Marie Curie (UPMC)  and is  scientist at the MNHN -National Museum of Natural History- in Paris. Recently she has been increasingly involved in outreach activities. She is the ACCESS webmaster.


 WP6 co-leader

Oystein Godoy has a background in meteorology and oceanography from University of Bergen. He has been working with remote sensing techniques at the Norwegian Meteorological Institute since 1994. In recent years he has been increasingly involved in data management activities e.g. for the EU project DAMOCLES and in operational data access during IPY.


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To see

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 ACCESS Deliverables

Flyer / Newsletters #1-11 / Policy Briefs #1-3

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Information on:

 The current status of Arctic sea ice

WP1 workshop on climate scenarios and climate simulation


Click on the links below to download the scientific presentations (pdf documents).

DAY one, 5.9.2011


9:00 Opening, Introduction, Logistics



Part 1 Background: Climate Physics


9:30 Greenhouse gases and climate change                     (Peter Lemke)

(carbon inventory, radiation balance, temperature/moisture/heat transport/polar amplification, ice sheet etc mass balance, sea level, ocean acidification)


10:15 Aerosols and other anthropogenic impacts              (Claire Granier)

(emissions of aerosols and other compounds, evaluation of anthropogenic emissions of aerosols, future scenarios, impact of biomass burning on the Arctic)


11:00 Break


Part 2 Climate Scenarios and Climate Models


11:15 Climate scenarios: An introduction                            (Kathrin Riemann-Campe)

(inputs, assumptions, uncertainties; CMIP3 vs. CMIP5; procedure of scenario generation, models of society, socio‐climatic feedbacks)


12:00 Climate model components and interactions             (Annette Rinke)

(atmosphere, ocean, sea ice, land surfaces, ice sheets and shelves, marine biosphere, carbon cycle, equations, discretizations, coupling, resolution, parameterizations)

12:45 Lunch


14:00 Climate model results                                                (Guy Brasseur)

(variables and their availability in public datasets; existing experiments and their purpose: pre‐industrial control, 20th century, comittment; scenarios and outcomes)


14:45 Biases and uncertainties                                           (Michael Karcher & Frank Kauker)

(evaluation of climate models, focus on Arctic climate and especially sea ice)


15:30 Break


Part 3 What do we need from climate models and what can they deliver?


15:45 Discussion in outbreak groups (Leads from ACCESS WPs – Schwarz, Eide, Rehdanz, Parson)

(What data/information do I need? What can climate models provide? Alternative mechanisms of “scenario” generation)


17:15 Reports from outbreak groups


19:30 Workshop Dinner for ACCESS members and speakers


DAY two, 6.9.2011


Part 4 Arctic Changes


9:00 Expected changes in the Arctic                                   (Rüdiger Gerdes)

(results from scenario calculations: SAT, sea ice, increasing precip & run‐off; comparison with recent changes)


Part 5 Natural variability vs. anthropogenic change


9:45 Observed variability from instrumental records and proxy data       (Robert Spielhagen)


10:30 Break


11:00 Variability in long climate model runs                        (Øyvind Seland)

(How well do climate models capture long term natural variability?Causes of long term variability: internal modes, external – solar, volcanic aerosols; comparison of past long term variability and recent change)


11:45 Discussion


12:15 Lunch


Part 6 Input from climate models to specific applications


13:30 Outbreak groups

(What do climate models provide? With what confidence? What is needed?Further work, collaborations, climate data preparation)


15:00 Summary of discussions

- 08/02/12