"goal seek" Excel¨ model for determining the water flow required to balance seepage, evaporation, and direct rainfall demand for a levee pond on a monthly basis. This model assumes zero replacement of pond volume per month, based on outflow. The water balance is shown schematically in Tollner et al. (2001). Directions and design drawings for use are included as a worksheet and are keyed to the input fields shown on the input sheet. Drop-down boxes and data validation features were liberally used, as were comment features. The levee pond does not intercept runoff from surrounding watersheds. One may specify three pond areas-depth combinations, then select which one is of current interest. Having three choices in the model enables rapid
training activity outlined in other Honduras Project investigations.
Specific study objectives are to:
1) Estimate local runoff coefficients (Natural Resources
Conservation Service curve number parameters, rational runoff coefficients, and soil seepage parameters) for an existing Excel¨ model developed for the design of hillside and watershed catchment ponds for water supply development; and
2) Develop strategies for designing and managing sustainable levee ponds for aquacultural production that reflects local conditions based on local water supply and soil suitability for pond development.
Model Development
Levee Pond Water Balance
Water supply development and application for fish culture in Honduras began with the construction of a so-called
