Using the DWOPER Routing Model to Simulate River Flows with Ice.

• Main Authors: Daly,Steven F, Ashton,George D
• Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH
• Format: Text
• Language: English
• Published: 1983
• Subjects: Hydrology; Limnology and Potamology; Snow; Ice and Permafrost; *ICE; *RIVERS; MATHEMATICAL MODELS; COMPUTERIZED SIMULATION; WATER FLOW; MODIFICATION; ICE FORMATION; MATHEMATICAL PREDICTION; FLOODING; CHANNEL FLOW; ICE BREAKUP; DWOPER computer program; *River ice; Ice; permafrost
• Online Access: http://www.dtic.mil/docs/citations/ADA125439; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA125439

The flow routing model of the National Weather Service entitled DWOPER (Dynamic Wave Operational Forecast Program) is examined with regard to the modifications required to include the effect of river ice on the flow variables of water level and discharge. Difficulties in modeling the ice effects are described. Example model output is presented showing the transient effects introduced by imposition or removal of the ice cover from an otherwise uncovered flow.