What geographical feature causes radar shadowing?

What geographical feature causes radar shadowing?

• A. Mountain ranges
• B. Coastal lines
• C. Deserts
• D. Open seas

Answer: (A)

Radar shadowing happens when terrain rises into the path of the radar beam, blocking the line of sight to anything beyond it. The radar sends out beams in straight lines, so a tall, extended feature intercepts those lines and creates a blind zone behind it where no return is received. Mountain ranges are the classic source of shadowing because their height and extent form a continuous obstacle that can block the beam over a wide area behind them. The size and location of the shadow depend on the radar’s height, the beam’s angle, and the geometry between the radar and the terrain. Coastal lines, deserts, or open seas don’t create the same kind of occlusion; they don’t present the tall, extended obstruction needed to cast a substantial radar shadow in the same way mountains do.

Radar shadowing happens when terrain rises into the path of the radar beam, blocking the line of sight to anything beyond it. The radar sends out beams in straight lines, so a tall, extended feature intercepts those lines and creates a blind zone behind it where no return is received. Mountain ranges are the classic source of shadowing because their height and extent form a continuous obstacle that can block the beam over a wide area behind them. The size and location of the shadow depend on the radar’s height, the beam’s angle, and the geometry between the radar and the terrain. Coastal lines, deserts, or open seas don’t create the same kind of occlusion; they don’t present the tall, extended obstruction needed to cast a substantial radar shadow in the same way mountains do.