Hello Aviation enthusiastic , my name is Sander . In the previous edition I wrote a global article about my job as a flight dispatcher at Amsterdam Schiphol Airport . This edition will feature working with different procedures under specified weather conditions . The winter period has arrived . As the days get shorter and colder it still has its great days full off glamorous sunshine . A low hanging sun reflects amazing on the aircrafts fuselages and the morning dew above the field is just fantastic . I personally love working with temperatures around 32 ° F / 0 ° C is making those sunny days perfect for dispatching . Although winter can be beautiful , with all the respect to mother nature , winter can create major problems for the Aviation industry . On a cold winter morning you can discover ice on an aircraft and that could mean the aircraft needs to be cleared of contamination ( Ice or snow ). When the pilot makes a walk-around to inspect the aircraft he or she will check the wings surface for contamination on the leading and trailing edge devices . If Ice or snow is spotted the pilot instantly decides for de-icing . They also check for ice and snow on the rudder and stabilo . The reason of de-icing is simple ; an aircraft will generate lift while making speed on the runway to get up in the air . With ice or snow on the wing the aircraft can not generate enough lift to get airborne . To calculate the time an aircraft has to get airborne after de-icing is called the ‘’ HOT ” Hold over time . Hold over Time is the estimated time for which an anti-icing fluid will prevent the formation of frost or ice and the accumulation of snow on the protected surfaces of an aeroplane under specified weather conditions . The pilot report to us if they need de-icing or not . If they do need de-icing we as dispatchers inform the ramp coordination . Ramp is providing and planning the de-icing trucks for us . To minimize any chance on a delay we anticipate as soon as possible . We start the boarding and loading of cargo and bags sooner than usual . Passengers and flight crew rely on us that we close the aircraft doors