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a core project of
2018WCRPspon col July2018 01 1


PPP/PCPI Workshop: Polar-Lower Latitude Linkages and Their Role in Weather and Climate Prediction
CliC meetings
10.12.2014 - 12.12.2014
Jenny Baeseman
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A joint initiative by WWRP-PPP and WCRP-PCPI
A workshop on invitation only.

10-12 December 2014
Barcelona, Spain

The workshop's overall aim is to improve the polar components of the tools used for weather and climate prediction, including enhanced initialization, which may lead to improved forecasts in the extra-polar regions.



The Polar Regions attract increasing attention due to a most pronounced regional climate change and its various manifestations, for example in accelerated ice sheet melting and disappearance of the summer Arctic sea ice. Further important changes with global implications are anticipated in the coming decades. Implications of these regional changes have already been observed in the middle latitudes. As a consequence, it is possible that the quality of global weather and climate predictions, especially on subseasonal-to-interannual time scales, may benefit from the use of better information about polar processes. For example, there are indications that accounting for snow and sea ice provides additional skill on seasonal time scales. However, the complex interactions between polar and extra-polar processes are still poorly known. Numerical weather predictions also suffer from a lack of data in the Polar Regions and from insufficiently realistic representation of key high-latitude processes in models. Improving the polar components of the tools used for weather and climate prediction, including a better initialization, may lead to improved forecasts in the extra-polar regions. The aim of the workshop is to bring together leading experts in the field to review our current knowledge of polar-lower latitude interactions, their role in weather and climate prediction and their influence in the occurrence of non-polar extremes. Linkages between the atmosphere, land surface and the ocean will be considered. The workshop will also identify existing gaps in
knowledge, develop recommendations on ways to narrow them down and identify priorities for polar research of benefit to weather and climate prediction in lower latitudes. A number of early career scientists from both polar and non-polar countries will be invited to attend the workshop and some financial support will be offered to them.