1. A sensitive instrument that records small variations in atmospheric pressure over time.
Usage: technical; meteorology

Examples

• The meteorology lab installed a microbarograph to detect subtle pressure changes.
• Microbarographs are essential for studying atmospheric waves and gravity waves.
• The microbarograph recorded pressure fluctuations that were too small for standard barometers to measure.
• Scientists use microbarograph data to improve weather prediction models.
• The continuous output from the microbarograph helped researchers understand local wind patterns.