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IRDR Monthly Seminar: The Shrinking Arctic Sea Ice

IRDR Monthly Seminar: The Shrinking Arctic Sea Ice

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IRDR Monthly Seminar 17.00 Tuesday 12 November  2019

UCL Bloomsbury Campus: Medical Sciences G46 H O Schild Pharmacology  Lecture Theatre
Speaker
Danny Feltham, Professor of Climate Physics, University of Reading 


The Shrinking Arctic Sea Ice

The Arctic Ocean sea ice cover waxes and wanes seasonally and this moderates exchanges of heat and feedbacks between the atmosphere and ocean: the sea ice cover insulates the ocean from the atmosphere and is highly reflective, radiating away much of the incoming solar energy in summer. In the last decade, the sea ice cover of the Arctic Ocean has rapidly declined. This is taken to be an indication and contributor to climate change. In his talk, Danny will describe what Arctic sea ice is, discuss its role in Arctic and global climate, and describe recent changes to the ice cover. He will discuss the processes controlling the sea ice mass balance, including the freezing of seawater, the ways in which the ice melts, and the forces that move the ice around and cause it to deform. These processes operate at the scale of millimetres to thousands ok kilometres. He will conclude with the role of sea ice and climate models in understanding recent changes and projections into the future.
Danny Feltham is Professor of Climate Physics in the Department of Meteorology, University of Reading and a founding member of the Centre for Polar Observation and Modelling.  His expertise is in the construction and analysis of new mathematical models of physical processes in the cryosphere. He runs a research group in polar oceanography that combines the development of fundamental new theory and numerical simulations with remotely-sensed observations, laboratory experiments and field measurements. This work has contributed to the UK Met Office Hadley Centre climate model. He initiated the UK Sea Ice Group, a forum for government and academic scientists, was organiser of two Royal Society conferences and a 4-month Isaac Newton Institute programme on sea ice. He won the Philip Leverhulme Prize in 2006 for excellence in research.

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