HEC-HMS Tutorials and Guides Current: Applying Loss Methods in HEC-HMS PDF Download PDF Download page Applying Loss Methods in HEC-HMS. Current page Include child pages All pages Applying Loss Methods in HEC-HMS Guidance on the different methods to model precipitation losses in HMS. Introduction to the Loss Rate Tutorials Applying the Initial and Constant Loss Method Applying the Deficit and Constant Loss Method Applying the Green and Ampt Loss Method Applying the Linear Deficit and Constant Loss Method Formatting gSSURGO Data for Use within HEC-HMS ×