automatic collection and transmission of ... - E-Library - WMO
automatic collection and transmission of ... - E-Library - WMO
automatic collection and transmission of ... - E-Library - WMO
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IVAUTOMATIC HYDROLOGICAL OBSERVATIONS2.4.32.4.42.4.52.5Commercial telegraph lines..•....•......•.....•................ 10Direct radio links - .Satellite links. IO" .Receiving system••.•.•....•.................•.... 0· ••••••••••••••••••18191919CHAPTER 3 EXAMPLES OF AUTOMATIC TRANSMISSION SYSTEMS FOR HYDROLOGICALPURPOSES. •• • ••• . •• •• •• •• • . . • •. • . •• ••• • . • •. • •. • . •• •. • •••• •••• •• 213.13.23.33.43.53.6Example I (Canada).•.....................•................•..•.... 21Example II (U.S.A.). The Hy-Tel remote rodio telemetry system ••• 26Example III (U.S.S.R.). Automatic hydrological recording station(AHRS) . 30Example IV (U.S.S.R.). Mudflow radio warner (MRW) ••••••••.•••••• 32Example V (France). Tele-snow-gauge with moving horizonto1 beam. 36Example VI (Hungary).Hydra II <strong>automatic</strong> digital telemeterings·ystem •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 41BIBLIOGRAPHY. . . • • . . •• . • •. • •• . . •• ••• • ••• •• . • . . • . • • ••• . . • . . ••• •••• • . ••• . •. • . . 45ANNEX 1 Questionnaire on hydrometeorological instruments <strong>of</strong> provenreliability. • • • • . . . . . . • . • • • . • • • • • . ... . . . . . . . . . • • . • • • . . . . . . . . . . • 47ANNEX 2 List <strong>of</strong> instruments <strong>of</strong> proven reliability <strong>and</strong> instruments forautomation <strong>of</strong> hydrological observations••••••••••.•..•.•...••• 49