The pond consists of one diagonal (〖45〗^̊) and three vertical sidewalls and one bottom wall
The pond is lined using a regular black-pond liner and insulated using polystyrene foam sheets. Three high-intensity discharge lamps (Super Grow 1000 W, Hydrofarm Inc., Petaluma, CA) were installed over the pond to mimic the sunlight spectrum
Air temperature and relative humidity were measured ̴ 40 cm above the water surface using a shielded sensor (HPMC45-L, Campbell Sci., Logan, UT). Net radiation was measured ̴ 10 cm above the water surface using a net radiometer (Q-7.1, Campbell Sci., Logan, UT)