Final answer:
GND PROX aural warnings are alarms from an aircraft's Ground Proximity Warning System that alert pilots of potential ground collisions. Technologies such as GPS and GIS have greatly improved the functionality of GPWS by providing accurate location and detailed terrain data.
Step-by-step explanation:
The GND PROX aural warnings refer to the Ground Proximity Warning System (GPWS) alarms in an aircraft. This system alerts pilots if their aircraft is in immediate danger of flying into the ground or an obstacle. The GPWS uses a combination of radar altimeters, radio altimeters, and terrain mapping data to determine the aircraft's altitude relative to the ground. When a potential collision is detected, the system will issue auditory alarms such as "Terrain, Terrain! Pull up, Pull up!" to prompt the pilot to take corrective action and initiate a climb.
Impact of Information Technologies
Technologies like GPS and GIS have significantly impacted the development of systems such as GPWS. GPS provides accurate location data which is essential for many navigational and positioning technologies. GIS stores, analyzes, and visualizes geographic data, which helps in creating detailed terrain maps used by GPWS for preventing ground collisions. The Internet has further facilitated the integration of these technologies, allowing for real-time data transmission and updates, which are critical for the accuracy and reliability of navigation and safety systems.