The science case for the EISCAT_3D radar

摘要: The EISCAT (European Incoherent SCATer) Scientific Association has provided versatile incoherent scatter (IS) radar facilities on the mainland of northern Scandinavia (the UHF and VHF systems) Svalbard electronically scanning ESR (EISCAT Radar) for studies high-latitude ionised upper atmosphere ionosphere). radars were constructed about 30 years ago, based technological solutions that time. science drivers today, however, require a more flexible instrument, which allows measurements to be made from troposphere topside ionosphere gives measured parameters in three dimensions, not just along single beam. possibility continuous operation is also an essential feature. To facilitatefuture work with world-leading IS facility, planning new system started first EU-funded Design Study (2005–2009) continued follow-up EU FP7 EISCAT_3D Preparatory Phase project (2010–2014). facility will realised by using phased arrays, key aspect use advanced software data processing techniques. This type act as pathfinder other worldwide. enable community address new, significant questions well serve society, increasingly dependent space-based technology issues related space weather. location within auroral oval at edge stratospheric polar vortex ideal long-term variability global change. paper summary case, was prepared part facility. Three working groups, drawn user community, participated preparing this document. In addition these group members, who are listed authors, thanks due many others scientific useful contributions, discussions, support.