Method and system for generating and providing descriptors of meteorological obstacles

An avionics system configured to be located on board an aircraft, the avionic system comprising:

• a flight management system;
• and,
• a weather data system,
• wherein the flight management system is configured to transmit to the weather data system, at least one requirement parameter being representative of a requirement of the flight management system,
• wherein the weather data system comprises:
• electronic circuitry configured to implement the following steps:
• receiving the at least one requirement parameter transmitted by the flight management system;
• obtaining georeferenced meteorological-obstacle data;
• processing the georeferenced meteorological-obstacle data in order to categorize a weather severity of meteorological obstacles and to obtain two-dimensional meteorological-obstacle images separated by weather-severity level;
• polygonising through outline simplification the meteorological obstacles of the two-dimensional images, for each weather-severity level, in order to obtain polygons representative of meteorological obstacles, and georeferencing the obtained polygons;
• configuring the processing, the polygonising, or both, depending on the at least one requirement parameter;
• and
• providing descriptors of meteorological obstacles to the flight management system, the descriptors of meteorological obstacles describing the obtained georeferenced polygons;
• wherein the flight management system is further configured to:
• compute a computed path allowing meteorological obstacles to be avoided by the aircraft;
• and
• transmit the computed path to a guiding system of the aircraft for guiding the aircraft according to the computed path,
• wherein the requirement of the flight management system is representative of:
• a computational resource of the flight management system, or a memory resource capacity of the flight management system, or both;
• or
• a requirement of decreasing journey time, or flight time, between a current position of the aircraft at a time of computation of the computed path by the flight management system and a destination of the aircraft;
• or
• a requirement in respect of fuel consumption and environmental impact;
• or
• any combination thereof.