An anemometrograph is a device that measures the speed and direction of wind. It is also known as a wind gauge or a wind-speed indicator. Other synonyms for anemometrograph include anemometer, wind vane, katabatic anemometer, and wind meter. These devices are essential for predicting weather patterns, aviation, maritime operations, and agricultural activities. An anemometer is usually used to measure the strength of wind, while a wind vane provides information on the direction of wind. A katabatic anemometer is used to measure wind speed at great heights. Regardless of the type of instrument used, anemometric measurements are important in various fields of study.