Measurement of the spatial distribution of temperature and velocity in lakes using Acoustic Tomography. This project will investigate the use of acoustic tomography in lakes to continuously measure the lake-wide distribution of temperature and velocity. The challenges with lake acoustic tomography are the accuracy required in the travel time measurements over shorter distances, acoustic losses due to reflections and ensuring enough rays travel through the thermocline, the region of greatest inte ....Measurement of the spatial distribution of temperature and velocity in lakes using Acoustic Tomography. This project will investigate the use of acoustic tomography in lakes to continuously measure the lake-wide distribution of temperature and velocity. The challenges with lake acoustic tomography are the accuracy required in the travel time measurements over shorter distances, acoustic losses due to reflections and ensuring enough rays travel through the thermocline, the region of greatest interest in lakes. A pilot experiment in a deep lake will investigate the quality of travel time measurements computed from rays travelling through the thermocline of a strongly stratified lake. This has wide applications for the water quality management of lakes and reservoirs.Read moreRead less
Acoustic observation of Antarctic ice rifting and calving events using remote hydroacoustic listening stations. The calving activity of the Antarctic ice shelves is one of the major indicators of global climate change. Global warming induced by an increase in atmospheric CO2 will affect the Antarctic Ice Sheet, primarily in form of disintegration of the Antarctic ice shelves surrounding the continent. The processes of calving on the ice shelves may lead to a substantial increase of sea level aro ....Acoustic observation of Antarctic ice rifting and calving events using remote hydroacoustic listening stations. The calving activity of the Antarctic ice shelves is one of the major indicators of global climate change. Global warming induced by an increase in atmospheric CO2 will affect the Antarctic Ice Sheet, primarily in form of disintegration of the Antarctic ice shelves surrounding the continent. The processes of calving on the ice shelves may lead to a substantial increase of sea level around the world, with devastating effects on the continental coasts and low-lying islands. The method of remote acoustic observations investigated in this project is a new approach to the problem of creating an efficient and cost effective system to monitor rifting and calving of the Antarctic ice shelves. Read moreRead less
Investigation of spin excitations in ferromagnetic submicro- and nanostructures. The project will last 12 months and will be devoted to investigation of spin-wave dynamics in thin ferromagnetic-film sub-micro- and nano-structures for possible applications to microwave\millimetre wave electronic devices and to novel magnetic memory devices. Excitation of spin-wave modes in confined in magnetic nano- and submicro-objects (from the super-paramagnetic size limit up to 700 nm) will be theoreticall ....Investigation of spin excitations in ferromagnetic submicro- and nanostructures. The project will last 12 months and will be devoted to investigation of spin-wave dynamics in thin ferromagnetic-film sub-micro- and nano-structures for possible applications to microwave\millimetre wave electronic devices and to novel magnetic memory devices. Excitation of spin-wave modes in confined in magnetic nano- and submicro-objects (from the super-paramagnetic size limit up to 700 nm) will be theoretically studied. In co-operation with other research groups the obtained theoretical results will be experimentally verified. New information on microwave properties of the structures will be obtained. Possibility of application of the magnetic structures to construct new microwave devices will be considered.Read moreRead less