Which system provides predictive wind shear alerts to flight crews?

The correct answer is the system that specifically focuses on anticipating and providing alerts for wind shear conditions that can be hazardous to aircraft during takeoff and landing phases. Predictive wind shear systems utilize advanced algorithms and data input from various sources, including weather patterns and radar information, to forecast sudden changes in wind direction and speed. These systems continuously analyze real-time data, providing pilots with timely alerts about potential wind shear events before they encounter them.

This capability is critical for enhancing safety as it allows for proactive measures to be taken by flight crews, such as altering approach paths or initiating go-arounds. While other options mentioned, such as ground-based radar and atmospheric monitoring systems, contribute to broader weather detection and analysis, they do not specifically focus on the predictive aspect of wind shear alerts like the chosen answer does.