Definition: A microbarograph is a type of barometer that measures atmospheric pressure at a small depth, such as a few meters below the surface. It is commonly used in meteorology and oceanography to measure the pressure difference between the atmosphere and the water column, which can help predict weather patterns and provide insights into sea level rise and other environmental issues. Microbarographs are typically used for measuring atmospheric pressure at depths of 0-50 meters (26-71 feet).