Hypsometry of Lakes and Reservoirs
General
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.
Processing Strategy
This product is estimated within the processing strategry of volume variations for lakes and reservoirs. Therefore, more information can be found here.
Data Holding
DAHITI currently provides 69 hypsometry models distributed over all continents, except Antarctica. In Africa (8 time series), Asia (7), 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.
Data Versions
This product is processed in the processing chain of volume variations.
More information can be found here.
Citation
If you are using hypsometry models from DAHITI in your work, please cite the following publication:
Schwatke C., Dettmering D., and Seitz F.: Volume Variations of Small Inland Water Bodies from a Combination of Satellite Altimetry and Optical Imagery. Remote Sensing, 12(10), 1606, doi:10.3390/rs12101606, 2020