Which system uses time averaging of sensor data?

• A. Automated Observations
• B. LOCAL
• C. Automated Meteorological Observing Systems (AMOS)
• D. AMOS Observing System

Answer: (C)

Time averaging of sensor data is a technique used in automated weather observing to smooth out short‑term fluctuations and sensor noise, producing stable values that represent conditions over a defined interval. The system built specifically for automated meteorological observations and that implements this averaging is the Automated Meteorological Observing System. It gathers raw data from instruments like temperature, humidity, pressure, wind, and precipitation, then computes averaged values over the chosen interval before reporting. This makes AMOS the system that uses time averaging of sensor data.

The other options are either too generic or refer to a different or less standard naming, so they don’t pinpoint the mechanism as precisely.