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    Retrieval of Lake Bulk and Skin Temperatures Using Along-Track Scanning Radiometer (ATSR-2) Data: A Case Study Using Lake Tahoe, California

    Source: Journal of Atmospheric and Oceanic Technology:;2003:;volume( 020 ):;issue: 004::page 534
    Author:
    Hook, Simon J.
    ,
    Prata, Fred J.
    ,
    Alley, Ronald E.
    ,
    Abtahi, Ali
    ,
    Richards, Robert C.
    ,
    Schladow, S. Geoffrey
    ,
    Pálmarsson, SveinnÓ
    DOI: 10.1175/1520-0426(2003)20<534:ROLBAS>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: In 1999, four monitoring stations were permanently moored on Lake Tahoe, California?Nevada. Each monitoring station provides near-real-time measurements of the surface skin temperature and bulk temperature on a near-continuous basis. Day and night data, acquired over Lake Tahoe from March to August 2000 with the second Along-Track Scanning Radiometer (ATSR-2), have been analyzed, and sets of coefficients for recovering the skin temperature and bulk temperature of the lake have been derived. The field measurements indicate that there is a noticeable difference between the bulk and skin temperatures (skin effect), which varies over the diurnal cycle. At the time of the ATSR-2 daytime overpass, the skin temperatures are on average 0.11°C cooler than the daytime bulk temperatures. At the time of the nighttime ATSR-2 overpass, the skin temperatures are on average 0.46°C cooler than the nighttime bulk temperatures. The smaller skin effect during the day is attributed to strong solar heating and low wind speeds at the site in the morning. The standard errors for recovering the daytime bulk and nighttime bulk temperatures, by regressing the in situ measurements against the average ATSR-2 nadir 11- and 12-?m channel brightness temperatures, are 0.40° and 0.18°C, respectively. By comparison the standard errors for recovering the daytime skin and nighttime skin temperatures by the same approach are 0.33° and 0.28°C, respectively. The lower standard error obtained for recovery of the skin and bulk temperatures at night is attributed to the lake surface being more homogeneous with the absence of solar heating. A comparison between the measured skin temperatures, skin temperature recovered by an ATSR-2 two-channel sea surface temperature algorithm, and the in situ regression indicates that the ATSR-2 algorithm has a similar scatter to the in situ linear regression but is offset with respect to the measured skin temperatures.
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      Retrieval of Lake Bulk and Skin Temperatures Using Along-Track Scanning Radiometer (ATSR-2) Data: A Case Study Using Lake Tahoe, California

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4158668
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    • Journal of Atmospheric and Oceanic Technology

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    contributor authorHook, Simon J.
    contributor authorPrata, Fred J.
    contributor authorAlley, Ronald E.
    contributor authorAbtahi, Ali
    contributor authorRichards, Robert C.
    contributor authorSchladow, S. Geoffrey
    contributor authorPálmarsson, SveinnÓ
    date accessioned2017-06-09T14:35:12Z
    date available2017-06-09T14:35:12Z
    date copyright2003/04/01
    date issued2003
    identifier issn0739-0572
    identifier otherams-2224.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4158668
    description abstractIn 1999, four monitoring stations were permanently moored on Lake Tahoe, California?Nevada. Each monitoring station provides near-real-time measurements of the surface skin temperature and bulk temperature on a near-continuous basis. Day and night data, acquired over Lake Tahoe from March to August 2000 with the second Along-Track Scanning Radiometer (ATSR-2), have been analyzed, and sets of coefficients for recovering the skin temperature and bulk temperature of the lake have been derived. The field measurements indicate that there is a noticeable difference between the bulk and skin temperatures (skin effect), which varies over the diurnal cycle. At the time of the ATSR-2 daytime overpass, the skin temperatures are on average 0.11°C cooler than the daytime bulk temperatures. At the time of the nighttime ATSR-2 overpass, the skin temperatures are on average 0.46°C cooler than the nighttime bulk temperatures. The smaller skin effect during the day is attributed to strong solar heating and low wind speeds at the site in the morning. The standard errors for recovering the daytime bulk and nighttime bulk temperatures, by regressing the in situ measurements against the average ATSR-2 nadir 11- and 12-?m channel brightness temperatures, are 0.40° and 0.18°C, respectively. By comparison the standard errors for recovering the daytime skin and nighttime skin temperatures by the same approach are 0.33° and 0.28°C, respectively. The lower standard error obtained for recovery of the skin and bulk temperatures at night is attributed to the lake surface being more homogeneous with the absence of solar heating. A comparison between the measured skin temperatures, skin temperature recovered by an ATSR-2 two-channel sea surface temperature algorithm, and the in situ regression indicates that the ATSR-2 algorithm has a similar scatter to the in situ linear regression but is offset with respect to the measured skin temperatures.
    publisherAmerican Meteorological Society
    titleRetrieval of Lake Bulk and Skin Temperatures Using Along-Track Scanning Radiometer (ATSR-2) Data: A Case Study Using Lake Tahoe, California
    typeJournal Paper
    journal volume20
    journal issue4
    journal titleJournal of Atmospheric and Oceanic Technology
    identifier doi10.1175/1520-0426(2003)20<534:ROLBAS>2.0.CO;2
    journal fristpage534
    journal lastpage548
    treeJournal of Atmospheric and Oceanic Technology:;2003:;volume( 020 ):;issue: 004
    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