Kinematic Model of River Ice Motion During Dynamic Breakup
We begin a study of the dynamics of ice motion during river breakup by formulating a Kinematic model. Ice continuity equations are applied to relate the speeds of a breaking front, convergence front, stoppage front, and release front with the ice discharge and volume per unit surface area (unit volu...
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ftdtic:ADA273141 2023-05-15T16:37:04+02:00 Kinematic Model of River Ice Motion During Dynamic Breakup Ferrick, Michael G. Weyrick, Patricia B. Nelson, David F. COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH 1993-09 text/html http://www.dtic.mil/docs/citations/ADA273141 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA273141 en eng http://www.dtic.mil/docs/citations/ADA273141 Approved for public release; distribution is unlimited. DTIC AND NTIS Snow Ice and Permafrost *ICE FORMATION *RIVERS *ICE BREAKUP KINEMATICS VELOCITY MEASUREMENT THICKNESS ICE ACCUMULATION CONNECTICUT RIVER HYDRAULIC MODELS CONVERGENCE RELEASE POROSITY MODELS MOTION TRACKING DISCHARGE RATE ICE JAMS PE62334A PE62784A WU001AST08AST42 Text 1993 ftdtic 2016-02-22T02:24:05Z We begin a study of the dynamics of ice motion during river breakup by formulating a Kinematic model. Ice continuity equations are applied to relate the speeds of a breaking front, convergence front, stoppage front, and release front with the ice discharge and volume per unit surface area (unit volume) on either side of each front. Ice velocity data are obtained from measurements with time made during a dynamic breakup at a pair of sites bounding a reach of the Connecticut River. We simulate the ice and front motion through time for this reach using the kinematic model with the assumptions that accumulation thickness and porosity are uniform, and that changes in the ice conditions and motion occur only at a front. Contrary to the basic assumption of static jam formation, we find that the accumulation develops while the ice is moving, and that jam formation merely represents the arrest of the motion. Front tracking, Ice breakup, Kinematic model, Hydraulic modeling, Ice jams, River ice motion. Text Ice permafrost Defense Technical Information Center: DTIC Technical Reports database |
institution |
Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Snow Ice and Permafrost *ICE FORMATION *RIVERS *ICE BREAKUP KINEMATICS VELOCITY MEASUREMENT THICKNESS ICE ACCUMULATION CONNECTICUT RIVER HYDRAULIC MODELS CONVERGENCE RELEASE POROSITY MODELS MOTION TRACKING DISCHARGE RATE ICE JAMS PE62334A PE62784A WU001AST08AST42 |
spellingShingle |
Snow Ice and Permafrost *ICE FORMATION *RIVERS *ICE BREAKUP KINEMATICS VELOCITY MEASUREMENT THICKNESS ICE ACCUMULATION CONNECTICUT RIVER HYDRAULIC MODELS CONVERGENCE RELEASE POROSITY MODELS MOTION TRACKING DISCHARGE RATE ICE JAMS PE62334A PE62784A WU001AST08AST42 Ferrick, Michael G. Weyrick, Patricia B. Nelson, David F. Kinematic Model of River Ice Motion During Dynamic Breakup |
topic_facet |
Snow Ice and Permafrost *ICE FORMATION *RIVERS *ICE BREAKUP KINEMATICS VELOCITY MEASUREMENT THICKNESS ICE ACCUMULATION CONNECTICUT RIVER HYDRAULIC MODELS CONVERGENCE RELEASE POROSITY MODELS MOTION TRACKING DISCHARGE RATE ICE JAMS PE62334A PE62784A WU001AST08AST42 |
description |
We begin a study of the dynamics of ice motion during river breakup by formulating a Kinematic model. Ice continuity equations are applied to relate the speeds of a breaking front, convergence front, stoppage front, and release front with the ice discharge and volume per unit surface area (unit volume) on either side of each front. Ice velocity data are obtained from measurements with time made during a dynamic breakup at a pair of sites bounding a reach of the Connecticut River. We simulate the ice and front motion through time for this reach using the kinematic model with the assumptions that accumulation thickness and porosity are uniform, and that changes in the ice conditions and motion occur only at a front. Contrary to the basic assumption of static jam formation, we find that the accumulation develops while the ice is moving, and that jam formation merely represents the arrest of the motion. Front tracking, Ice breakup, Kinematic model, Hydraulic modeling, Ice jams, River ice motion. |
author2 |
COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH |
format |
Text |
author |
Ferrick, Michael G. Weyrick, Patricia B. Nelson, David F. |
author_facet |
Ferrick, Michael G. Weyrick, Patricia B. Nelson, David F. |
author_sort |
Ferrick, Michael G. |
title |
Kinematic Model of River Ice Motion During Dynamic Breakup |
title_short |
Kinematic Model of River Ice Motion During Dynamic Breakup |
title_full |
Kinematic Model of River Ice Motion During Dynamic Breakup |
title_fullStr |
Kinematic Model of River Ice Motion During Dynamic Breakup |
title_full_unstemmed |
Kinematic Model of River Ice Motion During Dynamic Breakup |
title_sort |
kinematic model of river ice motion during dynamic breakup |
publishDate |
1993 |
url |
http://www.dtic.mil/docs/citations/ADA273141 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA273141 |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA273141 |
op_rights |
Approved for public release; distribution is unlimited. |
_version_ |
1766027367438876672 |