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    Harmonic Analysis in the Simulation of Multiple Constituents: Determination of the Optimum Length of Time Series

    Source: Journal of Atmospheric and Oceanic Technology:;2015:;volume( 032 ):;issue: 005::page 1112
    Author:
    Cao, An-Zhou
    ,
    Wang, Dao-Sheng
    ,
    Lv, Xian-Qing
    DOI: 10.1175/JTECH-D-14-00148.1
    Publisher: American Meteorological Society
    Abstract: o investigate the optimum length of time series (TS) for harmonic analysis (HA) in the simulation of multiple constituents, a two-dimensional tidal model is used to simulate the M2, S2, K1, and O1 constituents in the Bohai and Yellow Seas. By analyzing the HA results of several nonoverlapping TS of the same length, which varies from 15 to 365 days, a field-average deviation of HA results is calculated. A deviation that is sufficiently small means that HA results are independent of the choice of TS, and the corresponding TS length is regarded as the optimum. Results indicate that the range of 180?195 days is the optimum length of TS for HA in the simulation of the four principal constituents. To investigate what determines the optimum length, experiments with different computed area and model settings are carried out. Results indicate that the optimum length is independent of advection, nodal corrections, and computed area, and only depends on bottom friction. Nonlinear bottom friction results in the appearance of higher harmonics and explains why the optimum length of TS for HA is 180?195 days.
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      Harmonic Analysis in the Simulation of Multiple Constituents: Determination of the Optimum Length of Time Series

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4228569
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    contributor authorCao, An-Zhou
    contributor authorWang, Dao-Sheng
    contributor authorLv, Xian-Qing
    date accessioned2017-06-09T17:25:58Z
    date available2017-06-09T17:25:58Z
    date copyright2015/05/01
    date issued2015
    identifier issn0739-0572
    identifier otherams-85153.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4228569
    description abstracto investigate the optimum length of time series (TS) for harmonic analysis (HA) in the simulation of multiple constituents, a two-dimensional tidal model is used to simulate the M2, S2, K1, and O1 constituents in the Bohai and Yellow Seas. By analyzing the HA results of several nonoverlapping TS of the same length, which varies from 15 to 365 days, a field-average deviation of HA results is calculated. A deviation that is sufficiently small means that HA results are independent of the choice of TS, and the corresponding TS length is regarded as the optimum. Results indicate that the range of 180?195 days is the optimum length of TS for HA in the simulation of the four principal constituents. To investigate what determines the optimum length, experiments with different computed area and model settings are carried out. Results indicate that the optimum length is independent of advection, nodal corrections, and computed area, and only depends on bottom friction. Nonlinear bottom friction results in the appearance of higher harmonics and explains why the optimum length of TS for HA is 180?195 days.
    publisherAmerican Meteorological Society
    titleHarmonic Analysis in the Simulation of Multiple Constituents: Determination of the Optimum Length of Time Series
    typeJournal Paper
    journal volume32
    journal issue5
    journal titleJournal of Atmospheric and Oceanic Technology
    identifier doi10.1175/JTECH-D-14-00148.1
    journal fristpage1112
    journal lastpage1118
    treeJournal of Atmospheric and Oceanic Technology:;2015:;volume( 032 ):;issue: 005
    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
    yabeshDSpacePersian