Veðráttan

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Veðráttan - 02.12.1992, Blaðsíða 44

Veðráttan - 02.12.1992, Blaðsíða 44
Ársyfirlit_____________________VEÐRÁTTAN________________________1992 Summary of the annual report of the Icelandic Meteorological Office 1992. The Icelandic Meteorological Office was divided into the following divisions: Administration, forecasting, computer, climatological, meteorological research, instruments and observations, geophysical, aviation observation, avalanche and sea ice divisions. 66 personnel positions were occupied at the end of the year. The number of stations was as follows: 49 synoptic, 35 climatological and 41 precipitation stations. 3 of the synoptic stations were only operated in the summer. At 5 of the stations agrometeorological observations were made. Two stations were operated only for observations of wind and 2 only for measurements of duration of bright sunshine. Weather messages were sent from 36 Icelandic ships. Upper air observations were made at Keflavík airport at 12 and 24 GMT and in January observations were also made at 6 and 18 GMT. The total number of radiosonde observations (RAOB) was 786 and wind observations (RAWIN) were 783. At the station írafoss samples were collected for chemical analysis of some major pollutants in air and precipitation. Ozone observations were made regularly at Reykjavík. 23 seismological stations were operated, 7 borehole strainmeter stations and 2 gravimeter stations. Weather reports and forecasts for Iceland and the surrounding sea banks were broadcast 9 times daily January-September and 8 times daily October-December. Storm warnings and an abridged forecast for the country were broadcast 6 times during the day in October- December on Channel 2. Forecasts with 48 and 72 hours validity period were issued daily January-September and forecasts with 48, 72 and 96 hours validity 4 times daily October- December. Special voice broadcasts on short wave from coastal stations intended for shipping were 4 times daily. Forecasts for the banks were broadcast in English 4 times daily. Weather maps were presented daily by a meteorologist in the Icelandic State Television. The monthly issues of Veðráttan were published for the months April-December 1991 and annual summary for 1991. Efnisyfírlit. Bls. Bls. Tíöarfarsyfirlit..........................................97 Hiti og úrkoma (Höm, Krps, Grt)...............120 Úrkomukort.............................................98 Mælingar á mesta vindhraöa......................121 Hitakort....................................................99 Fjöldi sólskinsstunda....................................122 Athuganir á úrkomustöðvum.................101 Óson í gufuhvolfinu...................................123 Sjávarhiti................................................101 Athugunartímar og hæö loftvoga...............124 Aðaltafla................................................102 Meðalsólskinsstundir 1961-1990...............124 Hiti og raki á athugunartímum..............104 Mælingar á geislavirkum samsætum..........125 Nesjavellir..............................................108 Meöalloftþrýstingur 1961-1990..................125 Sólgeislunarmælingar...............................109 Jarövegshitamælingar..................................126 Ýmsar dagsetningar................................110 Meöalfjöldi úrkomudaga 1960-1990..........126 Lágmarksmælingar við jörð..................112 Veöurstöðvar................................................127 Snjódýpt.................................................113 Sjálfvirkarstöðvar.......................................129 Úrkomumælingar í safnmælum..............117 Ársskýrsla.....................................................130 Sjólag.....................................................118 Summaryoftheannualreport......................140 (140)

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