Final answer:
The NOTAM system is crucial for conveying temporary or permanent changes related to airfield or airspace hazards, ensuring the safety and efficiency of air navigation.
Step-by-step explanation:
The NOTAM (Notice to Airmen) system is used to obtain, format, and disseminate temporary or permanent changes to airfield or airspace hazards. NOTAMs are critical for the safety and efficiency of air navigation, providing essential information to pilots and flight crews.
They may include information such as closed runways, inoperative lights, navaids, changes in service availability, or other potential hazards that could affect flight operations. The information is formatted according to international standards and circulated through various channels, including the internet, to reach all potential airspace users in a timely manner.