| 2015 RiverWare User Group Meeting |
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| NCAR/UCAR Center Green Campus Auditorium |
Tuesday, February 3, 8am - 5pm
Wednesday, February 4, 8am – 12:30pm
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| TAPER—A Water Management Tool for Flood Operations of the Arkansas River within Tulsa District |
| Jennifer Steffen, Jody Stringer & John Daylor - USACE, Tulsa District |
The U.S. Corps of Engineers Tulsa district is responsible for water management of the Arkansas River as it flows through Kansas and Oklahoma including the operation of numerous flood storage reservoirs and navigation locks. The goal is to minimize flooding throughout the network with the key regulation control point at Van Buren, Arkansas. Upstream of Van Buren are 13 major flood storage reservoirs (7.6 million acre-feet) with 7,200 sq miles of uncontrolled local runoff that are managed to minimize flooding. The system flood evacuation plan calls for releases that evacuate the flood storage as quickly as possible without causing flooding, while still balancing the system storage and tapering down the flow at Van Buren.
During flood operations, Corp staff use a real-time decision support system called TAPER, implemented in RiverWare, which simulates the river and reservoir network, including all of the reservoir operations. The RiverWare model uses rulebased simulation to model surcharge, and flood control releases. The regulation discharge at Van Buren is computed based on a seasonally varying guide curves representing the equivalent percent of basin storage utilized. Given this regulation discharge, the RiverWare model computes a set of proposed release to balance the relative reservoir storages while not exceeding the downstream flow targets. Results are created using RiverWare System Control Tables, plots, and output tools. Water managers collectively review the proposed releases and river flows and modify releases based on event specific conditions. The final release schedule and other reports are sent to dam operators, other federal agencies, local water managers, power authorities and other interested stakeholders. |
| Click HERE for a PDF version of the presentation slides. |
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