Penman-Monteith equation

The Penman-Monteith equation is a mathematical way to estimate how much water evaporates from a surface, like soil or plants, into the air. It combines factors such as temperature, humidity, wind speed, and sunlight to provide a precise measurement of evaporation or crop water needs. This helps farmers, weather forecasters, and researchers understand water loss and manage resources effectively. Essentially, it calculates how environmental conditions influence the transfer of water from land to the atmosphere, facilitating better water management in agriculture and environmental monitoring.