Parameter estimation methods for models of major flood events in ungauged mountain basins of Colorado
| dc.contributor.author | Irvin, Ben Christopher, IV, author | |
| dc.contributor.author | Niemann, Jeffrey D., advisor | |
| dc.contributor.author | Schumacher, Russ S., committee member | |
| dc.contributor.author | Bailey, Ryan, committee member | |
| dc.date.accessioned | 2022-01-07T11:28:25Z | |
| dc.date.available | 2022-01-07T11:28:25Z | |
| dc.date.issued | 2021 | |
| dc.description.abstract | Accurate hydrologic modeling of ungauged mountain basins plays an important role in ensuring the safety of Colorado's dams. Recent research has shown that infiltration-excess runoff, saturation-excess runoff, and subsurface stormflow can all contribute to streamflow from major storms in Colorado's mountains, and the soil moisture accounting (SMA) method in HEC-HMS has been suggested as an appropriate approach to model these mechanisms. However, SMA requires estimation of parameters that have not been previously considered in dam safety analyses. The objectives of this work are to (1) evaluate simplifications to the modeling process that would reduce the number of required parameters and (2) develop methods to estimate the remaining parameters in ungauged mountain basins of Colorado where calibration to observed discharges is not possible. The proposed simplifications and parameter estimation methods are tested for five basins in the Front Range and three basins in the San Juan Range that have streamflow data available for major flood events. For these historical events, the proposed uncalibrated models produce the same streamflow generation processes as calibrated models and the predicted peak discharges from the uncalibrated models usually have 25% errors or smaller. For design storms, the peak discharges from the proposed uncalibrated models can differ substantially from the peak discharges from calibrated models but are conservative relative to the envelope of observed peak discharges. | |
| dc.format.medium | born digital | |
| dc.format.medium | masters theses | |
| dc.identifier | Irvin_colostate_0053N_16815.pdf | |
| dc.identifier.uri | https://hdl.handle.net/10217/234152 | |
| dc.language | English | |
| dc.language.iso | eng | |
| dc.publisher | Colorado State University. Libraries | |
| dc.relation.ispartof | 2020- | |
| dc.rights | Copyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright. | |
| dc.subject | flood | |
| dc.subject | parameter estimation | |
| dc.subject | ungauged basin | |
| dc.subject | mountains | |
| dc.subject | Colorado | |
| dc.subject | soil moisture accounting | |
| dc.title | Parameter estimation methods for models of major flood events in ungauged mountain basins of Colorado | |
| dc.type | Text | |
| dcterms.rights.dpla | This Item is protected by copyright and/or related rights (https://rightsstatements.org/vocab/InC/1.0/). You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). | |
| thesis.degree.discipline | Civil and Environmental Engineering | |
| thesis.degree.grantor | Colorado State University | |
| thesis.degree.level | Masters | |
| thesis.degree.name | Master of Science (M.S.) |
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