Following information is included:1) Lake name2) Location (longitude and latitude in decimal degree)3) Expression of the hypsometric curve in the form of quadratic function e.g.S=a(H-H0)^2+b(H-H0)+cS is the water extent area of the lake in the unit of km^2. H is the water level in the unit of m. H0 is the water level baseline in the unit of m. a,b,c are parameters.4) Number of data pairs used to fit the hypsometric curve.5) Goodness of fitting represented by R^2.