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MVS Mainstem Forecast Model Update: NETMISS2 by Joel Asunskis, P.E. Hydraulic Engineer, St. Louis District Water Control U.S. Army Corps Of Engineers October 30, 2007 MVS Mainstem Forecast Model Update: NETMISS2 by Joel Asunskis, P.E. Hydraulic Engineer, St. Louis District Water Control U.S. Army Corps Of Engineers October 30, 2007
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One Corps Serving the Armed Forces and the Nation St. Louis District 10 rivers 5 lock & dam sites 5 Corps lakes 750 miles of levees 92 flood control systems 416 miles of navigable channel 70 pumping plants 162 recreation areas 1 hydropower plant 10 rivers 5 lock & dam sites 5 Corps lakes 750 miles of levees 92 flood control systems 416 miles of navigable channel 70 pumping plants 162 recreation areas 1 hydropower plant
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One Corps Serving the Armed Forces and the Nation MVS L&D Operations MVS is unique in the way its Locks & Dams are operated within MVD Pool Instructions: L&D 24: “Remain at 446.2 +/- 0.1” L&D 25: “Lower to 429.7 +/- 0.1 by 1800” Special Conditions: Rapidly changing flows at Pools 24 and 25 can require pools to go from maximum regulated to minimum regulated pool in less than a 24-hour period (449.0-445.5 and 434.0-429.7). MVS is unique in the way its Locks & Dams are operated within MVD Pool Instructions: L&D 24: “Remain at 446.2 +/- 0.1” L&D 25: “Lower to 429.7 +/- 0.1 by 1800” Special Conditions: Rapidly changing flows at Pools 24 and 25 can require pools to go from maximum regulated to minimum regulated pool in less than a 24-hour period (449.0-445.5 and 434.0-429.7).
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One Corps Serving the Armed Forces and the Nation MVS L&D Operations Mel Price is unique in the way it operates within MVS Last dam before open-river conditions Low Water: At approximately 5ft. gate restrictions apply At approximately 2ft. uWith approved deviation, change maximum regulated pool to 419.5. u24-hr monitoring of upstream locks and Missouri flows. uWater Control issues every gate change as needed 24-hrs/day. uCoordination with RIAC intensifies. Mel Price is unique in the way it operates within MVS Last dam before open-river conditions Low Water: At approximately 5ft. gate restrictions apply At approximately 2ft. uWith approved deviation, change maximum regulated pool to 419.5. u24-hr monitoring of upstream locks and Missouri flows. uWater Control issues every gate change as needed 24-hrs/day. uCoordination with RIAC intensifies.
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One Corps Serving the Armed Forces and the Nation Hinge Point Operation Play Hinge Point Video
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One Corps Serving the Armed Forces and the Nation Goals Of NETMISS 2 Have a model that will allow us to see and analyze the effects of pool instructions on: Hinge Point Levels Tail Water Levels Reach profiles/stages Take advantage of the new routing technologies and Algorithms (HEC-RAS 4.0 Beta) To improve upon operational forecasting Have a model that will allow us to see and analyze the effects of pool instructions on: Hinge Point Levels Tail Water Levels Reach profiles/stages Take advantage of the new routing technologies and Algorithms (HEC-RAS 4.0 Beta) To improve upon operational forecasting
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One Corps Serving the Armed Forces and the Nation NETMISS2 A Visual Basic 6.0 application Utilizes the Unsteady Flow routing capabilities of HEC-RAS 4.0 Beta Data Storage in HEC-DSS A Visual Basic 6.0 application Utilizes the Unsteady Flow routing capabilities of HEC-RAS 4.0 Beta Data Storage in HEC-DSS
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One Corps Serving the Armed Forces and the Nation NETMISS2
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One Corps Serving the Armed Forces and the Nation MVS System Extents Salt River Cuivre River Illinois River Meramec River Chain of Rocks Kaskaskia River Big Muddy River Ohio River Missouri River St. Louis Lock 27 Q
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One Corps Serving the Armed Forces and the Nation MVS Model Extents Salt River Cuivre River Illinois River Meramec River Chain of Rocks Kaskaskia River Big Muddy River Ohio River Missouri River St. Louis L&D 24 Pool L&D 25 Pool MP L&D Pool Middle Mississippi/ Lower Model Lock 27 Q
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One Corps Serving the Armed Forces and the Nation Boundary Conditions HEC-RAS Model Uniformly Distributed Lateral Inflow U/S BC Flow D/S BC Stage Tributary BC Flow
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One Corps Serving the Armed Forces and the Nation Input
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One Corps Serving the Armed Forces and the Nation Model Input
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One Corps Serving the Armed Forces and the Nation L&D 24 Input
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One Corps Serving the Armed Forces and the Nation Model Input
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One Corps Serving the Armed Forces and the Nation L&D 24 Pool Estimate
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One Corps Serving the Armed Forces and the Nation Open River Rating Curve Shift
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One Corps Serving the Armed Forces and the Nation Guide Curve Editor
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One Corps Serving the Armed Forces and the Nation Open River Rating Curve Editor
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One Corps Serving the Armed Forces and the Nation Analysis Analysis and Model Execution
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One Corps Serving the Armed Forces and the Nation HEC-RAS Execution
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One Corps Serving the Armed Forces and the Nation Calibration Mode
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One Corps Serving the Armed Forces and the Nation N-Factor Managment In HEC-RAS 4.0 there is a limit in the number of flow/n-factor adjustments Restricted to 30 values Requires a larger flow interval between factors for a wide range of model operation NETMISS2 has a n-Factor repository for each model that expands allows each model to have up to 256 intervals. Tribs –>600 – 1000 cfs Illinois –>1000 cfs Missouri –>1000 cfs Upper Mississippi –> 5000 cfs Lower Mississippi –> 5000 cfs In HEC-RAS 4.0 there is a limit in the number of flow/n-factor adjustments Restricted to 30 values Requires a larger flow interval between factors for a wide range of model operation NETMISS2 has a n-Factor repository for each model that expands allows each model to have up to 256 intervals. Tribs –>600 – 1000 cfs Illinois –>1000 cfs Missouri –>1000 cfs Upper Mississippi –> 5000 cfs Lower Mississippi –> 5000 cfs
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One Corps Serving the Armed Forces and the Nation N-Factor Management Checks Flow range RAS Time Window Goes to Netmiss2 N-Factor Repository and Gathers n-factors based on the 30 factor limit Places 30 Factors in model Plan File for Model execution and calibration When n-Factors change in the model the changes are sent to the Netmiss2 n-Factor repository and the repository is updated MODEL EXECUTION
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One Corps Serving the Armed Forces and the Nation Hinge Point Check And Forecasting
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One Corps Serving the Armed Forces and the Nation Hinge Point Analysis Window
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One Corps Serving the Armed Forces and the Nation Open River Balancing 1. Approximate OR Level With Rating Curve – Model Computes L&D 24 Q Q Q 2. Simulate Downstream Model Profile – Compute D/S TW Level TW Swell Head 3. (TW + Drawdown) to find new Target L&D 24 Pool PL 4. Use New Target Pool To Compute new Q Q PL
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One Corps Serving the Armed Forces and the Nation O O Open River and TW Balancing
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One Corps Serving the Armed Forces and the Nation Forecast Report
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One Corps Serving the Armed Forces and the Nation Forecast Report
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One Corps Serving the Armed Forces and the Nation Current Status of NETMISS 2 Have a model that will allow us to see and analyze the effects of pool instructions on: Hinge Point Levels Tail Water Levels Reach profiles/stages On-going evaluation of NETMISS 2 versus current operational forecast model. Have a model that will allow us to see and analyze the effects of pool instructions on: Hinge Point Levels Tail Water Levels Reach profiles/stages On-going evaluation of NETMISS 2 versus current operational forecast model.
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