Sacramento Area Hydrology Model
SAHM Overview
The purpose of SAHM is to size hydromodification management or flow control facilities to mitigate the effects of increased runoff (peak discharge, duration, and volume) from proposed land use changes that impact natural streams, wetlands, and other water courses. SAHM provides:
A uniform methodology for Sacramento County
An easy-to-use software package
SAHM is based on:
Continuous simulation hydrology (HSPF)
Actual long-term recorded precipitation data
Actual long-term recorded pan evaporation data
Existing vegetation (for pre-project conditions)
Regional HSPF parameters