It also has many practical goals, including the better prediction and mitigation of space weather to safeguard space-based technology, improved modelling of the Earth’s ionised atmosphere for communications and global positioning applications, and a deeper understanding of the contribution of natural variability to long-term and short-term global change. In particular, it seeks to understand all the different ways that energy from the Sun is deposited in the environments of the Earth and other solar system bodies, the processes by which that energy is converted from one form to another, and the combined effects of all these processes on our environment.īecause of this broad remit, STP overlaps with many other areas of science, including atmospheric physics, solar physics, and plasma physics. The science of solar-terrestrial physics (STP) is concerned with understanding all aspects of the relationship between the Earth and the Sun. In addition, the Sun produces the solar wind-a stream of energetic particles which permeates the solar system, carrying with it a magnetic field which interacts with the internally generated magnetism of the Earth and other planets. As well as providing us with heat and light, the Sun supplies the energy which powers the motion of the Earth’s atmosphere and oceans, governing our weather and climate. The interaction between the Sun and the Earth is vital to every aspect of human existence. Introduction to EISCAT_3D Why do we need EISCAT_3D? In addition to these working group members, who are listed as authors, thanks are due to many others in the EISCAT scientific community for useful contributions, discussions, and support. Three science working groups, drawn from the EISCAT user community, participated in preparing this document.
This paper is a summary of the EISCAT_3D science case, which was prepared as part of the EU-funded Preparatory Phase project for the new facility.
The location of the radar within the auroral oval and at the edge of the stratospheric polar vortex is also ideal for studies of the long-term variability in the atmosphere and global change. The new radar facility will enable the EISCAT_3D science community to address new, significant science questions as well as to serve society, which is increasingly dependent on space-based technology and issues related to space weather.
#Digital atmosphere radar sources software#
This type of software radar will act as a pathfinder for other facilities worldwide. The radar facility will be realised by using phased arrays, and a key aspect is the use of advanced software and data processing techniques. To facilitatefuture science work with a world-leading IS radar facility, planning of a new radar system started first with an EU-funded Design Study (2005–2009) and has continued with a follow-up EU FP7 EISCAT_3D Preparatory Phase project (2010–2014). The possibility for continuous operation is also an essential feature.
#Digital atmosphere radar sources drivers#
The science drivers of today, however, require a more flexible instrument, which allows measurements to be made from the troposphere to the topside ionosphere and gives the measured parameters in three dimensions, not just along a single radar beam. The mainland radars were constructed about 30 years ago, based on technological solutions of that time. The EISCAT (European Incoherent SCATer) Scientific Association has provided versatile incoherent scatter (IS) radar facilities on the mainland of northern Scandinavia (the EISCAT UHF and VHF radar systems) and on Svalbard (the electronically scanning radar ESR (EISCAT Svalbard Radar) for studies of the high-latitude ionised upper atmosphere (the ionosphere).
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