The Center for Atmospheric Sciences | » APS Departmental Seminar–Shashi Gupta (SSAI/NASA Langley)

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  • APS Departmental Seminar–Shashi Gupta (SSAI/NASA Langley)

    Date/Time: February 4, 2015 (Wednesday) noon

    Where: Center for Atmospheric Sciences Class Room (Phenix 123)

    Speaker: Shashi Gupta

    From: SSAI/NASA Langley

    Topic: Evaluation of the Global Distribution of Radiation Budget Parameters


    Radiation budget of the planet is the most important determinant of the Earth's climate since radiation provides the largest source of energy that drive the weather and climate system. Global distributions of radiation budget parameters are being determined from satellite-based instruments for the top-of-atmosphere (TOA) and from ground-based instruments for the surface. Numerous models of the climate system also provide global distributions of radiation budget parameters. Comprehensive evaluation of model products is essential before results of those models can be relied on to forecast future climate with any confidence.

    Evaluation of radiation budget fields is done, generally, by comparing those fields with corresponding reference fields. A technique known as Taylor diagrams, developed more than a decade ago, has come into increasing use during recent years for quantitatively evaluating the agreement (or disagreement) between the tested and the reference fields. The purpose of this seminar is to present the methodology of this technique and illustrate its application.

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