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    Accuracy of the IMET sensor package in the subtropics

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    2009jtecho667%2E1.pdf (2.904Mb)
    Date
    2009-09
    Author
    Colbo, Keir  Concept link
    Weller, Robert A.  Concept link
    Metadata
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    Citable URI
    https://hdl.handle.net/1912/3989
    As published
    https://doi.org/10.1175/2009JTECHO667.1
    DOI
    10.1175/2009JTECHO667.1
    Keyword
     Sensors; Subtropics; Surface observations; Sea surface temperature 
    Abstract
    The accuracies of the meteorological sensors (air temperature, relative humidity, barometric pressure, near-surface temperature, longwave and shortwave radiation, and wind speed and direction) that compose the Improved Meteorological (IMET) system used on buoys at long-term ocean time series sites known as ocean reference stations (ORS) are analyzed to determine their absolute error characteristics. The predicted errors are compared to in situ measurement discrepancies and other observations (direct flux shipboard sensors) to confirm the predictions. The meteorological errors are then propagated through bulk flux formulas and the Coupled Ocean–Atmosphere Response Experiment (COARE) algorithm to give predicted errors for the heat flux components, the freshwater flux, and the momentum flux. Absolute errors are presented for three frequency bands [instantaneous (1-min sampling), diurnal, and annual]. The absolute uncertainty in the annually averaged net heat flux is found to be 8 W m−2 for conditions similar to the current ORS deployments in the subtropics.
    Description
    Author Posting. © American Meteorological Society, 2009. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Journal of Atmospheric and Oceanic Technology 26 (2009): 1867-1890, doi:10.1175/2009JTECHO667.1.
    Collections
    • Physical Oceanography (PO)
    Suggested Citation
    Journal of Atmospheric and Oceanic Technology 26 (2009): 1867-1890
     

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