The hypsometric curve describes the relationship between water levels and surface areas of a lake or reservoir. In this approach, water levels from satellite altimetry and surface areas from optical imagery are used. This information is essential for the estimation of the time series of volume variations but can also provide important information for hydrological application. The right figure shows the hypsometic curve is shown of Ray Roberts as an example. The equation of the hypsometric curve is given below.
This product is estimated within the processing strategry of volume variations for lakes and reservoirs. Therefore, more information can be found here.
DAHITI currently provides 61 hypsometry models distributed over all continents, except Antarctica. In Africa (4 time series), Asia (3), Australia (1), Europe (4), North America (42), and South America (7) water occurrence masks are available. The hypsometry models in DAHITI are freely available and can be downloaded after a short registration process. The amount of hypsometry models is permanently increasing.
This product is processed in the processing chain of volume variations.
More information can be found here.