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    An Evaluation of the National Meteorological Center Weekly Hindcast of Upper-Ocean Temperature along the Eastern Pacific Equator in January 1992

    Source: Journal of Climate:;1993:;volume( 006 ):;issue: 006::page 1221
    Author:
    Halpern, David
    ,
    Ji, Ming
    DOI: 10.1175/1520-0442(1993)006<1221:AEOTNM>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: The upper-ocean temperature distribution along the Pacific equator from 139° to 103°W was observed in January 1992 with temperature profiles recorded from a ship and inferred from an ocean general circulation model calculation involving data assimilation (i.e., hindcast). An El Niño episode was in progress. The 100-m-thick mixed layer depth, the mixed-layer temperature, and the depth-averaged temperature below the thermocline were similar in both data products. Considerable differences occurred in the representation of the 15°?25°C thermocline, such as the depth-averaged temperatures above and below the 20°C isotherm, the cast-west slope of the 20°C isotherm, and a 1000-km-wide depression. The longitudinal-averaged root-mean-square difference between the hindcast and observed depths of the center of the thermocline was 17 m. Most of the disparities could be attributed to a high wavenumber transient event that the model-based assimilation system was not intended to resolve.
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      An Evaluation of the National Meteorological Center Weekly Hindcast of Upper-Ocean Temperature along the Eastern Pacific Equator in January 1992

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4178890
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    contributor authorHalpern, David
    contributor authorJi, Ming
    date accessioned2017-06-09T15:19:19Z
    date available2017-06-09T15:19:19Z
    date copyright1993/06/01
    date issued1993
    identifier issn0894-8755
    identifier otherams-4044.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4178890
    description abstractThe upper-ocean temperature distribution along the Pacific equator from 139° to 103°W was observed in January 1992 with temperature profiles recorded from a ship and inferred from an ocean general circulation model calculation involving data assimilation (i.e., hindcast). An El Niño episode was in progress. The 100-m-thick mixed layer depth, the mixed-layer temperature, and the depth-averaged temperature below the thermocline were similar in both data products. Considerable differences occurred in the representation of the 15°?25°C thermocline, such as the depth-averaged temperatures above and below the 20°C isotherm, the cast-west slope of the 20°C isotherm, and a 1000-km-wide depression. The longitudinal-averaged root-mean-square difference between the hindcast and observed depths of the center of the thermocline was 17 m. Most of the disparities could be attributed to a high wavenumber transient event that the model-based assimilation system was not intended to resolve.
    publisherAmerican Meteorological Society
    titleAn Evaluation of the National Meteorological Center Weekly Hindcast of Upper-Ocean Temperature along the Eastern Pacific Equator in January 1992
    typeJournal Paper
    journal volume6
    journal issue6
    journal titleJournal of Climate
    identifier doi10.1175/1520-0442(1993)006<1221:AEOTNM>2.0.CO;2
    journal fristpage1221
    journal lastpage1226
    treeJournal of Climate:;1993:;volume( 006 ):;issue: 006
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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