U.R.S.I. handbook of ionogram interpretation and reduction

"This handbook has been prepared by the World Wide Soundings Committee (WWSC) in response to numerous requests for a manual of instructions suitable for use at the individual ionospheric stations forming the world-wide-network. it is based on the first, second, and third reports of the World Wide Soundings Committee" - - Foreword to first edition. edited by W.R. Piggott and K. Rawer. "Adopted by U.R.S.I. Commission III, Warsaw, Poland, 1972." Edition for 1961 prepared by the World Wide Soundings Committee. Also available via the Internet. Includes bibliographical references. 1972 NESDIS (National Environmental Satellite, Data, and Information Service) Library Public Domain 2286