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    Utility of Satellite Remote Sensing for Land–Atmosphere Coupling and Drought Metrics

    Source: Journal of Hydrometeorology:;2017:;Volume( 018 ):;issue: 003::page 863
    Author:
    Roundy, Joshua K.
    ,
    Santanello, Joseph A.
    DOI: 10.1175/JHM-D-16-0171.1
    Publisher: American Meteorological Society
    Abstract: eedbacks between the land and the atmosphere can play an important role in the water cycle, and a number of studies have quantified land?atmosphere (LA) interactions and feedbacks through observations and prediction models. Because of the complex nature of LA interactions, the observed variables are not always available at the needed temporal and spatial scales. This work derives the Coupling Drought Index (CDI) solely from satellite data and evaluates the input variables and the resultant CDI against in situ data and reanalysis products. NASA?s Aqua satellite and retrievals of soil moisture and lower-tropospheric temperature and humidity properties are used as input. Overall, the Aqua-based CDI and its inputs perform well at a point, spatially, and in time (trends) compared to in situ and reanalysis products. In addition, this work represents the first time that in situ observations were utilized for the coupling classification and CDI. The combination of in situ and satellite remote sensing CDI is unique and provides an observational tool for evaluating models at local and large scales. Overall, results indicate that there is sufficient information in the signal from simultaneous measurements of the land and atmosphere from satellite remote sensing to provide useful information for applications of drought monitoring and coupling metrics.
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      Utility of Satellite Remote Sensing for Land–Atmosphere Coupling and Drought Metrics

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    contributor authorRoundy, Joshua K.
    contributor authorSantanello, Joseph A.
    date accessioned2017-06-09T17:17:20Z
    date available2017-06-09T17:17:20Z
    date copyright2017/03/01
    date issued2017
    identifier issn1525-755X
    identifier otherams-82460.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4225576
    description abstracteedbacks between the land and the atmosphere can play an important role in the water cycle, and a number of studies have quantified land?atmosphere (LA) interactions and feedbacks through observations and prediction models. Because of the complex nature of LA interactions, the observed variables are not always available at the needed temporal and spatial scales. This work derives the Coupling Drought Index (CDI) solely from satellite data and evaluates the input variables and the resultant CDI against in situ data and reanalysis products. NASA?s Aqua satellite and retrievals of soil moisture and lower-tropospheric temperature and humidity properties are used as input. Overall, the Aqua-based CDI and its inputs perform well at a point, spatially, and in time (trends) compared to in situ and reanalysis products. In addition, this work represents the first time that in situ observations were utilized for the coupling classification and CDI. The combination of in situ and satellite remote sensing CDI is unique and provides an observational tool for evaluating models at local and large scales. Overall, results indicate that there is sufficient information in the signal from simultaneous measurements of the land and atmosphere from satellite remote sensing to provide useful information for applications of drought monitoring and coupling metrics.
    publisherAmerican Meteorological Society
    titleUtility of Satellite Remote Sensing for Land–Atmosphere Coupling and Drought Metrics
    typeJournal Paper
    journal volume18
    journal issue3
    journal titleJournal of Hydrometeorology
    identifier doi10.1175/JHM-D-16-0171.1
    journal fristpage863
    journal lastpage877
    treeJournal of Hydrometeorology:;2017:;Volume( 018 ):;issue: 003
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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