Field measurements refer to the collection of data and observations that are conducted directly in the field, as opposed to in a controlled laboratory setting. This can involve taking measurements of various parameters such as temperature, humidity, wind speed, air quality, water quality, soil composition, and more. Field measurements are often used in environmental science, geology, ecology, meteorology, and other disciplines to better understand natural systems and processes. They can help researchers gather real-time and accurate data to study and monitor changes in the environment and make informed decisions for resource management and conservation efforts.