Floating-type water surface evaporation platform based on open-type floating pontoon

A floating-type water surface evaporation platform based on an open-type floating pontoon comprises floating bowls (1), a floating arm (2), a center cabin (3) and an evaporation observation apparatus (4). The floating bowls (1) are distributed on a periphery of the center cabin (3) as a star type and are connected to the hollow floating arm (2) so as to form one integral body. The floating arm (2) and the center cabin (3) are connected in an assembly type. The evaporation observation apparatus (4) is arranged in the center cabin (3). A data acquisition and evaporation barrel water level control system (42) is installed on an evaporation barrel (41). Compared to a shape of an overall evaporation platform, the shape of the floating-type water surface evaporation platform is open. The floating bowls (1) are far away from the evaporation barrel (41) so that the evaporation barrel (41) is well merged into a circumference environment and convection and exchange of a horizontal air flow and air above the evaporation barrel (41) are convenient. Measurement data is stable and accurate and representativeness is good.