What is ESP?
Ensemble Streamflow Production (ESP)
Inputs the current moisture level of soil and the precipitation from previous years into a model which produces the diagram seen above.
For example, the moisture content of today would be inputted, along with the precipitation that occurred over the next week, but 50 years ago.
This would then be repeated for 49 years ago, 48, etc., and then an average discharge based on history can be determined.