Ground-based measurement technologies: CRL Alaska Project. International collaborations for observing Arctic atmosphere environment in Alaska

Abstract

In this paper the CRL Alaska Project will be briefly overviewed, which is to develop advanced radio/optical remote-sensing technologies and to construct a comprehensive observation system of Arctic middle atmosphere, in cooperation with US and Japanese institutions including the most major partner of Geophysical Institute of University of Alaska. The observation system is to demonstrate the technologies and also to study Arctic atmosphere changes and variations in relation to Global Change and solar activity effects. Eight instruments out of nine, which are components of the observation system, have started experiments in Alaska in recent years. A data network system named SALMON (system for Alaska middle atmosphere observation data network) is also being developed to automatically transfer and process the observed data employing broadband international network experiments APAN and TransPAC, from Alaska through Japan for WEB displays open to the world.