Publication: Magyar Közlöny
Issue: MK-2007-70 (Year: 2007, Number: 70)
Era: 2004-2010
Section: Melléklet a 2007. évi XLVI. törvényhez
Paragraph Index: 927

c) the touchdown zone, the mid-point and stop-end of the runway intended for Category III instrument approach and landing operations. 4.6.3.5 The units providing air traffic service and aeronautical information service for an aerodrome shall be kept informed without delay of changes in the serviceability status of the automated equipment used for assessing runway visual range. 4.6.4 Present weather 4.6.4.1 The present weather occurring at the aerodrome and/or its vicinity shall be observed and reported as necessary. 4.6.4.2 Recommendation.— For local routine and special reports, the present weather information should be representative of conditions at the aerodrome. 2007/70/II. szám Annex 3 — Meteorological Service for International Air Navigation Chapter 4 25/11/04 4-4 4.6.4.3 Recommendation.— For METAR and SPECI, the present weather information should be representative of conditions at the aerodrome and, for certain specified present weather phenomena, in its vicinity. 4.6.4.4 Recommendation.— Where observations are made using automatic observing systems, provision should be made for manual insertion of those present weather elements which cannot be determined adequately by that equipment. 4.6.5 Clouds 4.6.5.1 Cloud amount, cloud type and height of cloud base shall be observed, and reported as necessary to describe the clouds of operational significance. When the sky is obscured, vertical visibility shall be observed and reported, where measured, in lieu of cloud amount, cloud type and height of cloud base. The height of cloud base and vertical visibility shall be reported in metres (or feet). 4.6.5.2 Recommendation.— Cloud observations for local routine and special reports should be representative of the approach area. 4.6.5.3 Recommendation.— Cloud observations for METAR and SPECI should be representative of the aerodrome and its vicinity. 4.6.5.4 Recommendation.— Where observations of cloud amount and/or the height of cloud base are made using automatic observing systems, provision should be made for manual insertion of cloud amounts and, where appropriate, cloud type, together with the heights of those layers or masses not directly measurable by that equipment. 4.6.6 Air temperature and dew-point temperature 4.6.6.1 The air temperature and the dew-point temperature shall be measured and reported in degrees Celsius. 4.6.6.2 Recommendation.— Observations of air temperature and dew-point temperature for local routine and special reports and METAR and SPECI should be representative of the whole runway complex. 4.6.7 Atmospheric pressure The atmospheric pressure shall be measured, and QNH and QFE values shall be computed and reported in hectopascals. 4.6.8 Supplementary information 4.6.8.1 Recommendation.— Observations made at aerodromes should include the available supplementary information concerning significant meteorological conditions, particularly those in the approach and climb-out areas. Where practicable, the information should identify the location of the meteorological condition. 4.6.8.2 Recommendation.— Where observations are made using automatic observing systems, provision should be made for manual insertion of information concerning significant meteorological conditions which cannot be determined adequately by that equipment. 4.7 Reporting of meteorological information from automatic observing systems Recommendation.— METAR and SPECI from automatic observing systems should only be used during non-operational hours of the aerodrome. These METAR and SPECI should be identified with the word “AUTO”. 4.8 Observations and reports of volcanic activity Recommendation.— The occurrence of pre-eruption volcanic activity, volcanic eruptions and volcanic ash cloud should be reported without delay to the associated air traffic services unit, aeronautical information services unit and meteorological watch office. The report should be made in the form of a volcanic activity report comprising the following information in the order indicated:

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