Mountable atmospheric sensor for an aircraft

A sensor system for performing measurement of atmospheric conditions around an aircraft, the sensor system comprising:

• an air foil including an air opening in a bottom surface of the air foil with reference to a direction of airflow across the air foil;
• a screen mounted behind the air opening;
• plural sensors each for sensing the same atmospheric condition in air having passed through the screen,
• a GPS receiver interface for receiving GPS location information corresponding to a location of the sensor system;
• a processor for reading and averaging sensor values from the plural sensors;
• and
• a memory for storing averages of the sensor values read by the processor from the plural sensors and the location of the sensor system when the sensor values were read.