YaBeSH Engineering and Technology Library

    • Journals
    • PaperQuest
    • YSE Standards
    • YaBeSH
    • Login
    View Item 
    •   YE&T Library
    • AMS
    • Journal of Physical Oceanography
    • View Item
    •   YE&T Library
    • AMS
    • Journal of Physical Oceanography
    • View Item
    • All Fields
    • Source Title
    • Year
    • Publisher
    • Title
    • Subject
    • Author
    • DOI
    • ISBN
    Advanced Search
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Archive

    Combined Influence of Inflow and Lake Temperatures on Spring Circulation in a Riverine Lake

    Source: Journal of Physical Oceanography:;1979:;Volume( 009 ):;issue: 002::page 422
    Author:
    Carmack, Eddy C.
    DOI: 10.1175/1520-0485(1979)009<0422:CIOIAL>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: Kamloops Lake is a long (25 km), deep (maximum depth, 145 m) intermontane lake in central British Columbia fed at its eastern end by the Thompson River (mean annual flow, 720 m2 s?1). Here I describe spring overturn and the onset of stratification on the basis of three conceptual models distinguishing among river-induced, surface-induced and edge-induced circulations. The lake during winter is characterized by weak reverse stratification; the incoming river waters are less dense than ambient lake water and thus tend to remain at the lake surface. During spring,, the shallow river water warms more rapidly than the deep water of the lake; as inflow water warms toward the temperature of maximum density (4°C), it becomes denser than lake water and thus tends to sink on entry into the lake. Further warning of the inflow water above 4°C decreases its density causing it to again enter the lake as a surface overflow. Although the inflow itself is less dense than lake water, some mixtures of the two will necessarily have temperatures near 4°C, and thus be denser than either parent water mass; this process is called cabbeling (cf. Foster, 1972). The dense mixtures then sink along a narrow frontal zone, filling the lake basin with 4°C water from the bottom upward, while new (unmixed) inflow water is held as an arrested wedge near the point of entry. When the whole lake is warmed above 4°C, the cabbeling instability disappears and the wedge of warm water is released to spread down the lake. Transport of warm water across the lake subsequently forms the spring thermocline. Budget considerations show that although surface heating of the open lake contributes the major portion of the spring heat income, the riverine flow dominates lakewide circulation patterns, and thus determines the distribution of material properties during and subsequent to spring overturn.
    • Download: (861.3Kb)
    • Show Full MetaData Hide Full MetaData
    • Item Order
    • Go To Publisher
    • Price: 5000 Rial
    • Statistics

      Combined Influence of Inflow and Lake Temperatures on Spring Circulation in a Riverine Lake

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4162753
    Collections
    • Journal of Physical Oceanography

    Show full item record

    contributor authorCarmack, Eddy C.
    date accessioned2017-06-09T14:45:02Z
    date available2017-06-09T14:45:02Z
    date copyright1979/03/01
    date issued1979
    identifier issn0022-3670
    identifier otherams-25917.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4162753
    description abstractKamloops Lake is a long (25 km), deep (maximum depth, 145 m) intermontane lake in central British Columbia fed at its eastern end by the Thompson River (mean annual flow, 720 m2 s?1). Here I describe spring overturn and the onset of stratification on the basis of three conceptual models distinguishing among river-induced, surface-induced and edge-induced circulations. The lake during winter is characterized by weak reverse stratification; the incoming river waters are less dense than ambient lake water and thus tend to remain at the lake surface. During spring,, the shallow river water warms more rapidly than the deep water of the lake; as inflow water warms toward the temperature of maximum density (4°C), it becomes denser than lake water and thus tends to sink on entry into the lake. Further warning of the inflow water above 4°C decreases its density causing it to again enter the lake as a surface overflow. Although the inflow itself is less dense than lake water, some mixtures of the two will necessarily have temperatures near 4°C, and thus be denser than either parent water mass; this process is called cabbeling (cf. Foster, 1972). The dense mixtures then sink along a narrow frontal zone, filling the lake basin with 4°C water from the bottom upward, while new (unmixed) inflow water is held as an arrested wedge near the point of entry. When the whole lake is warmed above 4°C, the cabbeling instability disappears and the wedge of warm water is released to spread down the lake. Transport of warm water across the lake subsequently forms the spring thermocline. Budget considerations show that although surface heating of the open lake contributes the major portion of the spring heat income, the riverine flow dominates lakewide circulation patterns, and thus determines the distribution of material properties during and subsequent to spring overturn.
    publisherAmerican Meteorological Society
    titleCombined Influence of Inflow and Lake Temperatures on Spring Circulation in a Riverine Lake
    typeJournal Paper
    journal volume9
    journal issue2
    journal titleJournal of Physical Oceanography
    identifier doi10.1175/1520-0485(1979)009<0422:CIOIAL>2.0.CO;2
    journal fristpage422
    journal lastpage434
    treeJournal of Physical Oceanography:;1979:;Volume( 009 ):;issue: 002
    contenttypeFulltext
    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian
     
    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian