This Book Comparing The Hydraulic Jump Of The Benchmark Test With A Satisfactory Resolution Has Been Achieved. All The Tests Are Simulated Through The Fortran Language. The Surface Gradient Method Is Used To Simulate A Hydraulic Jump Occurring In A Channel With A Different Configuration Of The Topography. Also There Are Some Descriptions About Shallow Water Equations Has Been Done Where Many Problems In Hydraulic Environments And Coastal Engineering Are Related To Shallow-water Flow, And Shallow-water Equations Have A Broad Application In The Ocean And Hydraulic Engineering, Such As The Tidal Flows In Estuaries And Coastal Water Areas.