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* 19th June 2009 * IRISH MARINE DATABUOYS 19th June 2009 The Sea Area Forecast issued by Met Éireann covers Irish Coastal Waters out to 30 nautical miles, and also includes the Irish Sea area as shown in the map below.The Sea Area Forecast issued by Met Éireann contains the following standard elements: In Ireland most of the marine observations over the past 100 years have been from ships. Each observation consists of visual reports of all or a selection of the following parameters:- the sea height and sea period, swell height, direction and period, wind speed and direction, cloud type, amount and height, visibility and general weather such as fog, rain, snow etc., and measured observations of pressure, air and sea temperature.The Marine Unit is responsible for Met Éireann's Port Meteorological Officers who are based at several Offices around the country who train ships' crews to make weather observations. Increasingly, over the past 10 years, the human observers are being supplemented by automatic systems that compile the information from sensors and send it to Met Éireann via satellite.  In 1999 Met Éireann, together with some funding from the Dept. of Communications, Marine and Natural Resources, placed an Automatic Weather Station (AWS) on board the Marine Institute's RV Celtic Voyager. This AWS sends hourly observations of wind speed and direction (corrected for the motion of the ship), air pressure, characteristic and tendency, air and dew point temperature and sea temperature. Continuous long term observations are so important for forecasting and climatology that in November 2000 Met Éireann, in conjunction with the Marine Institute, the Dept. of Communications, Marine & Natural Resources and the UK Met Office launched the first in the series of 6 data buoys to be placed off our shores.   The buoy reports wind speed - mean and gust, wind direction, pressure and pressure characteristic and tendency, temperature - air, sea and dew point calculated from relative humidity, significant wave height and wave period. LOCATION Buoy Number (ID) General Location Location (approx) In operation Since M1 (62090) Off the Galway coast Approximately 40 nautical miles (74 km) west southwest of Slyne Head November 2000. M2 (62091) Irish Sea Approximately 20 nautical miles (37Km) east of Howth Head April 2001. M3 (62092) Off the Cork coast Approximately 30 nautical miles (56km) southwest of Mizen Head July 2002. M4 (62093) Off the Donegal coast Approximately 45 nautical miles (83 km) west northwest of Rossan Point April 2002 M5 (62094) Off the south Wexford coast Approximately 30 nautical miles (56 km) south of Hook Head October 2004 M6 (62095) Deep Atlantic Approximately 210 nautical miles (389 km) west southwest of Slyne Head September 2006   Eventually all buoys will have the added capability of measuring oceanographic parameters, such as the speed of ocean currents and the temperature and salinity of the water at various depths

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