affected by strong cold air, many japanese airlines cancelled flights on a large scale. the reporter of the taiwan channel learned on february 4 local time that due to strong cold air, many japanese airlines announced the cancellation of some flights on the day. faced with sudden weather changes, aviation operators, airport staff and passengers have taken countermeasures to ensure aviation safety. this article will report this incident in detail. 1. the background of the incident is affected by strong cold air, and japan has encountered rare and harsh weather conditions. in such a weather environment, it is flying...