Requirements for all aviation weather products originate from the FAA, which is the Meteorological Authority for the U.S. Weather service to aviation is a joint effort of the National Oceanic and Atmospheric Administration (NOAA), the National Weather Service (NWS), the Federal Aviation Administration (FAA), Department of Defense, and various private sector aviation weather service providers. National Weather Service Aviation Weather Service Program.FAA Form 7233−4 International Flight Plan Aeronautical Charts and Related Publications.Bird Hazards and Flight Over National Refuges, Parks, and Forests.Cold Temperature Barometric Altimeter Errors, Setting Procedures and Cold Temperature Airports (CTA).Barometric Altimeter Errors and Setting Procedures.Aircraft Rescue and Fire Fighting Communications. National Security and Interception Procedures.Pilot/Controller Roles and Responsibilities.Operational Policy/Procedures for the Gulf of Mexico 50 NM Lateral Separation Initiative.Operational Policy/Procedures for Reduced Vertical Separation Minimum (RVSM) in the Domestic U.S., Alaska, Offshore Airspace and the San Juan FIR.Radio Communications Phraseology and Techniques.Air Navigation and Obstruction Lighting.Aeronautical Lighting and Other Airport Visual Aids.Performance-Based Navigation (PBN) and Area Navigation (RNAV).Code of Federal Regulations and Advisory Circulars.This sea clutter tends to remain in the same area and can therefore be distinguished from rain echoes, which generally move with the wind. They can often be tracked moving towards or away from port over a series of images.During strong winds and very rough seas, sea clutter may be visible off the coast out to a range of about 30 km. These appear as specks or short arcs (oriented perpendicular to the direction of the radar). On cold clear winter nights and mornings these echoes may become stronger or increase in number due to downward refraction of the radar beam.Ships are regularly observed over the sea. These usually show up as small, stationary or erratically moving specks, mostly over the higher ground of the Blue Mountains, Southern Highlands and Barrington Tops areas. People in the Newcastle, Hunter Valley and lower Mid North coast are therefore encouraged to refer to the nearer Newcastle radar, those in the Illawarra the Sydney (Appin) radar and users on the Southern Tablelands the Canberra radar.Non-meteorological Echoes: In most cases, processing of the radar signal removes permanent echoes caused by hills, buildings and other solid objects, but sometimes a few slip through. The high sensitivity of the radar will assist in the detection of drizzle and light shower activity over Sydney, the Central Coast and Blue Mountains, but, as with other radars, the curvature of the Earth may hide these usually shallow weather systems at longer range. Based on detecting echoes at an altitude of 3,000 metres, the radar coverage extends as far north as Bulahdelah and Scone, west to Mudgee and Bathurst and south to Goulburn and Ulladulla.Meteorological Aspects: The radar will readily detect thunderstorms and deep rain-bearing systems approaching from any direction, often at greater range than quoted above. The rough topography of the Great Dividing Range slightly compromises the radar's view to the west, but the coverage to the north, east and south is largely unobstructed. The Terrey Hills site, on the Hornsby plateau at an elevation of 195 metres above sea level, gives the radar an excellent view in all directions. Geographical Situation: The radar is located 18 km north of the Sydney CBD. Terrey Hills Weather Watch RadarNew South Wales NSW 33.7009°S 151.2098☎ 194m AMSL Location
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