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    Simple Snowdrift Model for Distributed Hydrological Modeling

    Source: Journal of Hydrologic Engineering:;2004:;Volume ( 009 ):;issue: 004
    Author:
    M. Todd Walter
    ,
    Donald K. McCool
    ,
    Larry G. King
    ,
    Myron Molnau
    ,
    Gaylon S. Campbell
    DOI: 10.1061/(ASCE)1084-0699(2004)9:4(280)
    Publisher: American Society of Civil Engineers
    Abstract: A simple snowdrift model was developed, incorporated into a distributed winter-time hydrological model, and tested against snow measurements from a hillside in eastern Washington State. Snow movement can be an important factor in the distribution of spring soil moisture and runoff. Although current hydrological models often attempt to account for heterogeneities in precipitation distribution, they do not account for snowdrift. Snow melts and accumulates during the same times that it is redistributed. Therefore, evaluation required a snowmelt/accumulation model to be coupled with the snowdrift model. The snowmelt/accumulation model used the standard energy balance approach and performed well, i.e., standard errors of snow water equivalent ≈1 cm. The snowdrift model’s simulated snow distribution generally agreed with observed snow distribution across a hill. Most notable were the model’s ability to correctly place a snowdrift on the lee side of the hill and its ability to predict snow removal from nondrift areas. The effects of snow redistribution and the model’s ability to reproduce these were obvious when overlaid on model results that ignored snowdrift.
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      Simple Snowdrift Model for Distributed Hydrological Modeling

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    http://yetl.yabesh.ir/yetl1/handle/yetl/49789
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    contributor authorM. Todd Walter
    contributor authorDonald K. McCool
    contributor authorLarry G. King
    contributor authorMyron Molnau
    contributor authorGaylon S. Campbell
    date accessioned2017-05-08T21:23:45Z
    date available2017-05-08T21:23:45Z
    date copyrightJuly 2004
    date issued2004
    identifier other%28asce%291084-0699%282004%299%3A4%28280%29.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/49789
    description abstractA simple snowdrift model was developed, incorporated into a distributed winter-time hydrological model, and tested against snow measurements from a hillside in eastern Washington State. Snow movement can be an important factor in the distribution of spring soil moisture and runoff. Although current hydrological models often attempt to account for heterogeneities in precipitation distribution, they do not account for snowdrift. Snow melts and accumulates during the same times that it is redistributed. Therefore, evaluation required a snowmelt/accumulation model to be coupled with the snowdrift model. The snowmelt/accumulation model used the standard energy balance approach and performed well, i.e., standard errors of snow water equivalent ≈1 cm. The snowdrift model’s simulated snow distribution generally agreed with observed snow distribution across a hill. Most notable were the model’s ability to correctly place a snowdrift on the lee side of the hill and its ability to predict snow removal from nondrift areas. The effects of snow redistribution and the model’s ability to reproduce these were obvious when overlaid on model results that ignored snowdrift.
    publisherAmerican Society of Civil Engineers
    titleSimple Snowdrift Model for Distributed Hydrological Modeling
    typeJournal Paper
    journal volume9
    journal issue4
    journal titleJournal of Hydrologic Engineering
    identifier doi10.1061/(ASCE)1084-0699(2004)9:4(280)
    treeJournal of Hydrologic Engineering:;2004:;Volume ( 009 ):;issue: 004
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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