Linking flooding to
discharge using GIS with a hydraulic model
The goal of this term project for GIS in Water
Resources Engineering is to estimate the spatial and temporal extent of natural
flooding on the Upper Gila River in
In most years, flooding occurs as snowpack melts in the early spring and monsoons in the late
summer deliver water to this site that changes the water surface profile of the
river dramatically! The woody
debris and sediment pictured here advertise
the effects of such floods, even at low flows.
But these aftereffects are not the focus of this project. The flood itself is the focus...how much area
does the flood cover, and how long does it last? To answer this, measurements were made on an
elevation model of the site in a GIS software environment, and these measurements
were sent to a hydraulic model along with streamflow data in order to calculate
water depth during snowmelt season.
Skip to:
Setting-up a HEC-RAS simulation