TAILIEUCHUNG - Distributed Arrays of Small Instruments for Solar-Terrestrial Research Report of a Workshop

The Sun is the primary source of energy at Earth, and the Sun’s output determines the conditions in interplanetary space at Earth and throughout the solar system. Earth’s magnetic field and associated electrical current systems are continuously reacting to changing conditions in the solar wind that are driven by processes occurring at the Sun. The characteristics of Earth’s ionosphere and neutral thermosphere are influenced both by local processes and by coupling of the ionosphere and thermosphere to the overlying regions of the geospace1 environment | Distributed Arrays of Small Instruments for Solar-Terrestrial Research A WORKSHOP REPORT Distributed Arrays of Small Instruments for Solar-Terrestrial Research Report of a Workshop Ad Hoc Committee on Distributed Arrays of Small Instruments for Research and Monitoring in Solar-Terrestrial Physics A Workshop Space Studies Board Division on Engineering and Physical Sciences NATIONAL RESEARCH COUNCIL Of THE NATIONAL ACADEMIES THE NATIONAL ACADEMIES PRESS Washington . THE NATIONAL ACADEMIES PRESS 500 Fifth Street . Washington DC 20001 NOTICE The project that is the subject of this report was approved by the Governing Board of the National Research Council whose members are drawn from the councils of the National Academy of Sciences the National Academy of Engineering and the Institute of Medicine. The members of the committee responsible for the report were chosen for their special competences and with regard for appropriate balance. This study is based on work supported by the National Science Foundation under Grant No. ATM-0109283 and was also supported by Contract NASW-01001 between the National Academy of Sciences and the National Aeronautics and Space Administration. Any opinions findings conclusions or recommendations expressed in this publication are those of the author s and do not necessarily reflect the views of the agencies that provided support for the project. Cover design by Monica A. Foster. Cover images Front top left to right 1 Digital portable sounder receiver array at Chilton United Kingdom. Courtesy of Chris Davis Rutherford Appleton Laboratory. 2 Installation of SuperDARN SANAE high frequency radar located at Vesleskarvet Antarctic. Courtesy of Hercules Olivier. 3 Installation of a low-power magnetometer at the South Pole. Courtesy of Robert Clauer University of Michigan. Front bottom The aurora viewed from Alaska. Courtesy of Jan Curtis. Back top Distributed Global Positioning System receivers provide a snapshot of a tongue of .