Controlling the water level of the Neuquen, Limay, and Negro rivers of Argentina is a challenge. They provide water for the country's main fruit growing regions and serve as a major transport medium for the country's products. A network of 80 Campbell Scientific weather stations provide a hydrometeorological system to monitor the rivers and assist in maintaining water levels. The network covers a 100,000 sq/km area and monitors a variety of parameters including water level, solar radiation, relative humidity, wind speed and direction, precipitation, and temperature.