ASCI 202

  FOG AND LOW CEILINGS       This week we will be discussing weather conditions that are a great hazard to aviation. Fog and Low ceilings, in my opinion, are the most dangerous conditions any pilot has to fly in. Different airports and military installations have their own criteria in which they can fly in. During the winter we are more prone to low ceilings and visibility.  According to NWS " Each year, around 440 people are killed due to weather-related aviation accidents including the conditions of low visibility and ceilings." What is Fog? Fog is the suspension of very small, usually microscopic water droplets in the air that reduce surface based visibility to less than 5/8SM. We have very many types of fog but the main one is Radiation Fog. " Fog consists of visible water droplets or ice crystals suspended in the air, close to the Earth’s surface. It can be considered a type of low-lying cloud, which occurs when the temperature becomes close to the dew point (the te

 RANDOM ACCESS PLAN POSITION INDICATOR AND TERMINAL DOPPLER WEATHER RADAR This weeks topic will be about the Air Traffic control entities and to be specific the Random Access Plan Position Indicator (RAPPI) and the Weather Radar and how contribute to an Air Traffic controller's day today activity . RAPPI is "... a software tool that can display aircrafts targets reported by a surveillance source of present as side-by-side display of all surveillance sources that provide data to an en-route air traffic control centre." (FAA 2020) A Terminal doppler weather radar on the other hand is used to get vital informations and warnings about: Hazardous wind sheer conditions Precipitation Gust front Microbursts This two entities are very important to not only the pilots but the air traffic controllers. The "RAPPI workstation provides the national airspace system operations manager immediate information about the health status of the surveillance sources supporting the facility.&