In the UK, laboratory studies on ice cores will continue to establish a high resolution time series of climate during the past several hundred to a few thousand years in the Antarctic Peninsula region. Ice cores from Beethoven Peninsula and Gomez Nunatak will be examined, particularly their isotopic composition, anions and MSA on appropriate sections. A new electromechanical ice core drill and associated control systems will be built and commissioned for use on Berkner Island.
Studies of the conductivity of ice at DC and up to 100 kHz will be made on the ice core as it is drilled on Berkner Island.
In the UK, aerosol samples collected at Halley Research Station in 1991 will be analysed and interpreted. A comparison will be made of the electrical and radar data from the Greenland Ice Core Project core will be made; two sequences of GRIP ice will be analysed for high resolution chemistry and subjected to analysis by a scanning electron microscope. Studies will continue on the relationship of the chemistry of the atmosphere to the chemistry of snowfall and its subsequent metamorphosis on the ground.
A mass and energy budget study on the Uranus Glacier will include detailed ground measurements linked to satellite data and upper air data.
In the UK, a synthesis of data will provide predictions of the Antarctic Peninsula ice sheet contribution to future sea level rise.
Ice strain rosettes, set up in 1993-94 up to 120 km from Halley Research Station, will be resurveyed in a study of the deformation of the Brunt Ice Shelf.
In the UK, survey data will be analysed to assess the dynamics of the Brunt Ice Shelf near Halley Station in order to predict its future behaviour.
In the UK, theoretical studies will continue to further understanding of the present and past behaviour of the Antarctic ice sheet in order to make reliable predictions of its future behaviour. In particular an evolutionary model of the Filchner-Ronne Ice Shelf will be applied to study the implications of various basal melting regimes to the mass balance of the ice sheet. Active support of the European Ice Sheet Modelling Initiative (EISMINT) will continue.
In the UK, satellite data will be employed to register and monitor changes in extent and movement of the Antarctic ice sheet. Processing and analysis of seismic reflection and wide angle data from Rutford Ice Stream will continue. The BAS radioecho sounder will be upgraded to include a chirp option.
In the UK, theoretical studies will further understanding of the present-day thermal structure of ice shelves which is dictated by surface climate, ice flow and deformation, and heat and mass exchange with the underlying ocean. In particular a tidal model will be applied to Ronne-Filchner Ice Shelf and thermistor cable data from the water column beneath Sites 1 and 2 on Ronne Ice Shelf interpreted.
An upper-air programme will be implemented from RRS Bransfield using a micro CORA radiosonde system.
Automatic Weather Stations owned by University of Wisconsin will be serviced to enhance the coverage of meteorological data from the Antarctic Peninsula.
In the UK, the present climate regime of the Antarctic will be studied together with the mechanisms which control the Antarctic climate.
In the UK, theoretical studies will improve the mesoscale modelling of the atmospheric boundary layer for use in weather forecasting and climate models. Instruments will be developed for boundary layer profiling.
Equipment to make in situ measurements of cloud and precipitation properties will be tested at Rothera Research Station.
In the UK, high latitude meteorological processes will be studied using satellite data to determine their role in the general circulation of the atmosphere. In particular a new physical algorithm for retrieving precipitation from passive microwave imagery will be developed further, and case studies carried out of weather systems crossing the Antarctic Peninsula using model fields and satellite observations.
A UV-visible spectrometer will be installed at Halley Research Station able to make stratospheric measurements of ozone and ozone-related gases during the winter and early spring using absorption spectra from the moon and stars.
In the UK, modelling studies will allow the implications of ozone depletion to be assessed for regions outside the Antarctic. Laboratory measurements will investigate slit function and angular response characteristics of ultraviolet radiometers to be deployed in an Arctic field campaign in 1995.