Circular 42. Airborne Weather Radar | Аэростандарт

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Circular 42

Airborne Weather Radar

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ICAO CIR CULAR 42- AN/ 7 CIRCULAR AIRBORNE WEATHER RADAR Prepared in the Air Navigation Bureau and by authority of the Secretary General I INTERNATIONAL CIVIL AVIATION ORGAN iZATlON MONTREAL 8 CANADA

This Publication is issued in English, French and Spanish. Published in Montreal, Canada, by the International Civil Aviation Organization. Correspondence concerning publications should be addressed to the Secretary General of ICAO, International Aviation Building, 1080 University Street, Montreal, Canada. Orders for ICAO publications should be sent, on payment In Canadian currency 1, to In Sterling or Irish currency s/d, to Secretary General, ICAO, Her Majesty's Stationery Office, International Aviation Building, P.0. Box 569, 1080 University Street, London, S. E. 1, Montreal. Canada. Eneland. Cable address ICAO MONTREAL Clble address WHOLECORN, SEDIST, LONDON In French currency fr, to In Egyptian currency L. E., to ICAO Representative, ICAO Representative, ro ean and African Office, Middle East Office, O"f avenue dn16na, Wadie Saad Building, Paris 16e, France. Sharia Salah el Dine, Cable address ICAOREP PARIS Zamalek, Cairo, Egypt. Cable address ICAOREP CAIRO In Peruvian currency soles, to In Thai currency bahts, to ICAO Representative, ICAO Representative, South American Office, Far East and Pacific Office. Apartado 680, Sala Santitham, Rajadamnoen Ave., Lima, PerG. Bangkok, Thailand. Cable address ICAOREP LIMA Cable address ICAOREP BANGKOK In Australian currency s/d, to In Indian currency Rs., to Robertson and Mulle ns, 107 Elizabeth Street, Melbourne, C. 1, Australia. Oxford Book and Stationery Company, Scindia House, New Delhi, India. In Argentine currency pesos, to Editorial Sudamericana S. A. , Calle Alsina 500, Buenos Aires, Argentina. Cable address LIBRECOL BUENOS AIRES

ICAO Circular 42-/37 1 TABLE OF CONTENTS Foreword .............................. Summary .............................. 1 .. Introduction .......................... ............. .. 2 The fundamental principles of radar ....................... 3.- Rainfallintensity ................ Measurement of rainfall .... Special techniques for rainfall intensity analysis Attenuation ....................... ........................ .. 4 Cloud detection ....................... . 5. The "bright band" ....................... .. 6 The "upper band" 7.. Lightning ........................... ............... .. 8 Turbulence and rainfall intensity 9 .. Airborne radar equipment .................. 10 . . Action proposed to the fourth Session of the Meteorology Division .......................... References ..........................

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