Explain the function of lightning detectors in RAWS.

Lightning detectors play a crucial role in Remote Automated Weather Stations (RAWS) by monitoring lightning activity, which is an important indicator of potential fire starts. When lightning strikes, it can ignite dry vegetation, particularly in areas prone to wildfires. Therefore, having real-time data on lightning occurrences allows fire management personnel to take timely action in fire prevention and response efforts. The ability to detect lightning helps in assessing the risk of wildfire ignition, enabling better resource allocation and operational planning.

The other options address functions that do not align with the primary purpose of lightning detectors. For example, measuring atmospheric pressure changes and tracking storm systems are responsibilities typically handled by other instruments like barometers and radar systems. Evaluating air quality is also outside the scope of lightning detection and generally pertains to specific environmental monitoring equipment. Thus, the function of lightning detectors is singularly focused on lightning monitoring to enhance fire safety and management.