https://csdms.colorado.edu/csdms_wiki/api.php?action=feedcontributions&feedformat=atom&user=Ndphu 2026-04-29T00:58:45Z User contributions MediaWiki 1.44.2 https://csdms.colorado.edu/csdms_wiki/index.php?title=Meeting:Abstract_2013_CSDMS_meeting-012&diff=56330 2013-01-31T08:44:42Z

<p>Ndphu: </p> <hr /> <div>{{CSDMS meeting 2013 not paid}}<br /> {{CSDMS meeting personal information template-2013<br /> |CSDMS meeting first name=Phu<br /> |CSDMS meeting last name=Nguyen<br /> |CSDMS meeting institute=UC Irvine<br /> |CSDMS meeting city=Irvine<br /> |CSDMS meeting country=United States<br /> |CSDMS meeting state=California<br /> |CSDMS meeting email address=ndphu@uci.edu<br /> |CSDMS meeting phone=3526535659<br /> }}<br /> {{CSDMS meeting abstract yes no<br /> |CSDMS meeting abstract submit=No<br /> }}<br /> {{CSDMS meeting abstract title template-2013<br /> |CSDMS meeting abstract title=<br /> }}<br /> {{CSDMS meeting abstract template<br /> |CSDMS meeting abstract=<br /> }}<br /> {{blank line template}}</div>

Ndphu https://csdms.colorado.edu/csdms_wiki/index.php?title=File:Picture1.png&diff=56327 2013-01-31T00:32:47Z

<p>Ndphu: Discharge (m3/s) at USGS gauge 07360200 (top), Flooded map (m) (left) and Flow velocity (m/s) in 3-Dimensional view (right)</p> <hr /> <div>Discharge (m3/s) at USGS gauge 07360200 (top), Flooded map (m) (left) and Flow velocity (m/s) in 3-Dimensional view (right)</div>

Ndphu https://csdms.colorado.edu/csdms_wiki/index.php?title=Meeting:Abstract_2013_CSDMS_meeting-012&diff=46896 2012-12-01T08:57:35Z

<p>Ndphu: Created page with &quot;{{CSDMS meeting 2013 not paid}} {{CSDMS meeting personal information template-2013 |CSDMS meeting first name=Phu |CSDMS meeting last name=Nguyen |CSDMS meeting institute=UC Ir...&quot;</p> <hr /> <div>{{CSDMS meeting 2013 not paid}}<br /> {{CSDMS meeting personal information template-2013<br /> |CSDMS meeting first name=Phu<br /> |CSDMS meeting last name=Nguyen<br /> |CSDMS meeting institute=UC Irvine<br /> |CSDMS meeting city=Irvine<br /> |CSDMS meeting country=United States<br /> |CSDMS meeting state=California<br /> |CSDMS meeting email address=ndphu@uci.edu<br /> |CSDMS meeting phone=3526535659<br /> }}<br /> {{CSDMS meeting abstract yes no<br /> |CSDMS meeting abstract submit=Yes<br /> }}<br /> {{CSDMS meeting abstract title template-2013<br /> |CSDMS meeting abstract title=Modeling the Upper Little Missouri River flash flood 2010 Using a Coupled Distributed Hydrologic and Hydraulic Model <br /> }}<br /> {{CSDMS meeting abstract template<br /> |CSDMS meeting abstract=Flash floods are among the most devastating natural hazards, which cause loss of life and severe economic damages. Modeling flash floods to provide warnings to the public to prevent/mitigate the impacts of this type of disaster is still challenging. A coupled model which consists of a currently used Hydrology Laboratory - Research Distributed Hydrologic Model (HL-RDHM) at NWS and a high resolution hydraulic model (BreZo) has been developed for flash flood modeling purpose. The model employs HL-RDHM as a rainfall-runoff generator in coarse resolution to produce surface runoff which will be zoned into point source hydrographs at the sub-catchment outlets. With point source input, BreZo simulates the spatial distributions of water depth and velocity of the flow in the river/channel and flood plain.<br /> The model was utilized to investigate the historical flash flood event in the Upper Little Missouri River watershed, Arkansas. This event occurred on June 11th, 2010 and had killed 20 people and caused severe property damages. The catchment was divided into 55 sub-catchments based on Digital Elevation Model (DEM) at 10m resolution from USGS. From HL-RDHM surface runoff, 55 hydrographs can be derived, which then become 55 point sources as input in BreZo. The system was calibrated by tuning the roughness parameter in BreZo to best match the USGS discharge observation at the catchment outlet. The simulation results show the system performed very well not only for the total discharge at the catchment outlet but also the spatial distribution of the flash floods.<br /> <br /> }}<br /> {{CSDMS meeting abstract figures<br /> |CSDMS meeting abstract figure=FloodedMap.jpg<br /> |CSDMS meeting abstract figure caption=Flooded map of the flash flood in the Upper Little Missouri River on June 11 2010 <br /> }}<br /> {{blank line template}}</div>

Ndphu https://csdms.colorado.edu/csdms_wiki/index.php?title=File:FloodedMap.jpg&diff=46895 2012-12-01T07:04:18Z

<p>Ndphu: The flooded map of flash flood in Upper Little Missouri River on June 11 2010.</p> <hr /> <div>The flooded map of flash flood in Upper Little Missouri River on June 11 2010.</div>

Ndphu https://csdms.colorado.edu/csdms_wiki/index.php?title=User:Ndphu&diff=30073 2011-09-30T22:23:12Z

<p>Ndphu: </p> <hr /> <div>{{Signup information member<br /> |First name member=PHU<br /> |Last name member=NGUYEN<br /> |Institute member=UCI<br /> |Postal address 1 member=1723 VERANO PL<br /> |Postal address 2 member=VERANO PLACE<br /> |City member=IRVINE<br /> |Postal code member=92617<br /> |State member=California<br /> |Country member=USA<br /> |Confirm email member=ndphu@uci.edu<br /> |Working group member=Terrestrial Working Group, Hydrology Focus Research Group<br /> }}</div>

Ndphu