Rain gauge.
the watershed map of an area with annual precipitation from the upper left clockwise are 1.9,2.1,1.8,1.9,2.1,2.2 inches respectively.draw the theissen polygon map for the watershed and if the areas for each rainguage,again clockwise from upper left are 65,150,55,140,215,270 acres respectively,calculate the annual average precipitation for the area
we used a rain guage to measure the rain typed by a barbadian denni045077
Photometer-used to measure light intensity on land Hydrophotometer-used to measure light intensity on land Colorimeter-used to measure acidity or alkalinity of soil or solution Sacchi disc-used to measure the turbuduty ir transparency of water Meter rule-used to measure the length if