Lesson 24: Unit Hydrograph Derivation

Learning Objectives

• Describe the single event method for unit hydrograph derivation
• Setup the set of deconvolution equations to derive a unit hydrograph from rainfall excess and direct runoff hydrograph for a watershed
• Solve the deconvolution equations by backsubstitution
• Solve the deconvolution equations using Excel Solver (with constraints)

Handouts (bring to class)

• None

Reading Assignment

• Mays 8.8 NRCS (SCS) Unit Hydrograph Procedure

Homework Problems

• Homework 27
• Homework 28