HR: 1330h
AN: H12B-0980    [PDF]
TI: Development of a Coupled 3-Dimensional Hydrological - Hydraulic Model Integrated With High Resolution Digital Elevation Model
AU: * Migliori, L
EM: l.migliori@student.ucc.ie
AF: Department of Civil and Environmental Engineering, University Colleege of Cork, Cork, na Ireland
AU: Cuenca, R
EM: R.Cuenca@ucc.ie
AF: Department of Bioengineering, Oregon State University, Corvallis, OR 97331-3906 United States
AU: O'Kane, P
EM: p.okane@ucc.ie
AF: Department of Civil and Environmental Engineering, University Colleege of Cork, Cork, na Ireland
AB: The lower Feale catchment is a low-lying peaty area of 200 km2 situated in southwest Ireland that is subject to annual flooding. Two of the 15 hydraulically independent polders making up the catchment have been instrumented as part of a pump experiment. The main purpose of this study is to monitor and evaluate the effectiveness of pumping for eventual implementation in a flood mitigation strategy in the remaining polders. The effectiveness of the system is monitored by a number of state-of-the-art, high frequency instruments including: an eddy covariance station for water vapour and carbon dioxide, radiometers, soil temperature and soil water probes, groundwater level gauges, water level gauges and rainfall gauges. A second, less extensive set of instruments is located in an adjacent non-pumped polder, which provides a control for the experiment. An electrical resistivity investigation and a ground-penetrating radar survey were carried out to collect subterranean data. A number of deep boreholes were drilled to calibrate these two surveys. A dynamic geographical database, built in ArcGIS (ESRI), is used to store the wide range of data collected and the results of the different surveys carried out. The data are fed into a 3-dimensional hydrological-hydraulic model of the two polders developed using Mike SHE coupled with a Mike11 model of the surface drainage network and hydraulic controls, and integrated with a high-resolution digital elevation model. The hydrologic-hydraulic model includes features of the hydraulic infrastructure such as pumps, sluiced culverts, back-drains and channel embankments. The paper will discuss in detail ongoing results.
DE: 1821 Floods
SC: Hydrology [H]
MN: 2003 Fall Meeting