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    Diurnal Cycle of Oceanic Precipitation from SSM/I Data

    Source: Monthly Weather Review:;1995:;volume( 123 ):;issue: 011::page 3371
    Author:
    Chang, A. T. C.
    ,
    Chiu, L. S.
    ,
    Yang, G.
    DOI: 10.1175/1520-0493(1995)123<3371:DCOOPF>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: Four and a half years of the global monthly oceanic rain rates derived from the DMSP (Defense Meteorological Satellite Program) F-8 SSM/I (Special Sensor Microwave/Imager) data are used to study the diurnal cycles. Annual mean rainfall maps based on the SSM/I morning and evening observations are presented, and their differences are examined using a paired t test. The morning estimates are larger than the afternoon estimates by about 20% over the oceanic region between 50°S and 50°N, with significant differences located mainly along the intertropical convergence zone region. Using the measurements from two satellites, either DMSP F-8 and F-10 or DMSP F-10 and F-11, amplitudes and phases of the 24-h harmonic are estimated. The diurnal cycle shows a nocturnal or early morning maximum in 35%?40% of the oceanic regions. Monte Carlo simulations show that the rms errors associated with the estimated amplitude and phase are about 100% and 2 h, respectively, mainly due to the large random errors (50%) associated with the present rainfall estimates and the nonoptimal separation times of the DMSP satellite sampling.
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      Diurnal Cycle of Oceanic Precipitation from SSM/I Data

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4203550
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    contributor authorChang, A. T. C.
    contributor authorChiu, L. S.
    contributor authorYang, G.
    date accessioned2017-06-09T16:10:34Z
    date available2017-06-09T16:10:34Z
    date copyright1995/11/01
    date issued1995
    identifier issn0027-0644
    identifier otherams-62636.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4203550
    description abstractFour and a half years of the global monthly oceanic rain rates derived from the DMSP (Defense Meteorological Satellite Program) F-8 SSM/I (Special Sensor Microwave/Imager) data are used to study the diurnal cycles. Annual mean rainfall maps based on the SSM/I morning and evening observations are presented, and their differences are examined using a paired t test. The morning estimates are larger than the afternoon estimates by about 20% over the oceanic region between 50°S and 50°N, with significant differences located mainly along the intertropical convergence zone region. Using the measurements from two satellites, either DMSP F-8 and F-10 or DMSP F-10 and F-11, amplitudes and phases of the 24-h harmonic are estimated. The diurnal cycle shows a nocturnal or early morning maximum in 35%?40% of the oceanic regions. Monte Carlo simulations show that the rms errors associated with the estimated amplitude and phase are about 100% and 2 h, respectively, mainly due to the large random errors (50%) associated with the present rainfall estimates and the nonoptimal separation times of the DMSP satellite sampling.
    publisherAmerican Meteorological Society
    titleDiurnal Cycle of Oceanic Precipitation from SSM/I Data
    typeJournal Paper
    journal volume123
    journal issue11
    journal titleMonthly Weather Review
    identifier doi10.1175/1520-0493(1995)123<3371:DCOOPF>2.0.CO;2
    journal fristpage3371
    journal lastpage3380
    treeMonthly Weather Review:;1995:;volume( 123 ):;issue: 011
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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