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    Effects of Retrospective Gauge-Based Readjustment of Multisensor Precipitation Estimates on Hydrologic Simulations

    Source: Journal of Hydrometeorology:;2010:;Volume( 012 ):;issue: 003::page 429
    Author:
    Zhang, Yu
    ,
    Reed, Seann
    ,
    Kitzmiller, David
    DOI: 10.1175/2010JHM1200.1
    Publisher: American Meteorological Society
    Abstract: his paper presents methodologies for mitigating temporally inconsistent biases in National Weather Service (NWS) real-time multisensor quantitative precipitation estimates (MQPEs) through rain gauge?based readjustments, and examines their effects on streamflow simulations. In this study, archived MQPEs over 1997?2006 for the Middle Atlantic River Forecast Center (MARFC) area of responsibility were readjusted at monthly and daily scales using two gridded gauge products. The original and readjusted MQPEs were applied as forcing to the NWS Distributed Hydrologic Model for 12 catchments in the domain of MARFC. The resultant hourly streamflow simulations were compared for two subperiods divided along November 2003, when a software error that gave rise to a low bias in MQPEs was fixed. It was found that readjustment at either time scale improved the consistency in the bias in streamflow simulations. For the earlier period, independent monthly and daily readjustments considerably improved the streamflow simulations for most basins as judged by bias and correlation. By contrast, for the later period the effects were mixed across basins. It was also found that 1) readjustments tended to be more effective in the cool rather than warm season, 2) refining the readjustment resolution to daily had mixed effects on streamflow simulations, and 3) at the daily scale, redistributing gauge rainfall is beneficial for periods with substantial missing MQPEs.
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      Effects of Retrospective Gauge-Based Readjustment of Multisensor Precipitation Estimates on Hydrologic Simulations

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4212625
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    contributor authorZhang, Yu
    contributor authorReed, Seann
    contributor authorKitzmiller, David
    date accessioned2017-06-09T16:36:21Z
    date available2017-06-09T16:36:21Z
    date copyright2011/06/01
    date issued2010
    identifier issn1525-755X
    identifier otherams-70803.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4212625
    description abstracthis paper presents methodologies for mitigating temporally inconsistent biases in National Weather Service (NWS) real-time multisensor quantitative precipitation estimates (MQPEs) through rain gauge?based readjustments, and examines their effects on streamflow simulations. In this study, archived MQPEs over 1997?2006 for the Middle Atlantic River Forecast Center (MARFC) area of responsibility were readjusted at monthly and daily scales using two gridded gauge products. The original and readjusted MQPEs were applied as forcing to the NWS Distributed Hydrologic Model for 12 catchments in the domain of MARFC. The resultant hourly streamflow simulations were compared for two subperiods divided along November 2003, when a software error that gave rise to a low bias in MQPEs was fixed. It was found that readjustment at either time scale improved the consistency in the bias in streamflow simulations. For the earlier period, independent monthly and daily readjustments considerably improved the streamflow simulations for most basins as judged by bias and correlation. By contrast, for the later period the effects were mixed across basins. It was also found that 1) readjustments tended to be more effective in the cool rather than warm season, 2) refining the readjustment resolution to daily had mixed effects on streamflow simulations, and 3) at the daily scale, redistributing gauge rainfall is beneficial for periods with substantial missing MQPEs.
    publisherAmerican Meteorological Society
    titleEffects of Retrospective Gauge-Based Readjustment of Multisensor Precipitation Estimates on Hydrologic Simulations
    typeJournal Paper
    journal volume12
    journal issue3
    journal titleJournal of Hydrometeorology
    identifier doi10.1175/2010JHM1200.1
    journal fristpage429
    journal lastpage443
    treeJournal of Hydrometeorology:;2010:;Volume( 012 ):;issue: 003
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
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