1 Institut für Meteorologie und Klimaforschung, Karlsruhe, Germany
2 European Space Agency, ESTEC, Nordwijk, The Netherlands
The project of a digital Atlas of Antarctic Sea Ice Drift aims at providing a comprehensive view of sea ice motion around Antarctica as a reference for ocean and climate modelling. It also provides statistics on the state of sea ice cover for weather forecasting models and ship routing.
It is based on data covering almost two decades starting at 1979, and focusses on sea ice variability over periods ranging from submonthly to interannual. The data analysis takes advantage of algorithms developed for ice drift using data from passive microwave sensors on polar orbiting satellites as well as on drifting buoy data gathered within various national programs and within the International Programme for Antarctic Buoys (IPAB).
The graphical presentations involve various combinations of sea ice variables, periods and years, being commonly georeferenced in a geographic information system. They also comprise ice concentrations from SSM/I and weather data from NCEP Reanalysis.
A download area provides access to the underlying data in digital form and can be used under the conditions specified in the data agreement.