Performance of the meteorological radiation model during the solar eclipse of 29 March 2006Report as inadecuate

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1 Atmospheric Research Team

Abstract : Various solar broadband models have been developed in the last half of the 20th century. The driving demand has been the estimation of available solar energy at different locations on earth for various applications. The motivation for such developments, though, has been the ample lack of solar radiation measurements at global scale. Therefore, the main goal of such codes was to generate artificial solar radiation series or calculate the availability of solar energy at a place. One of the broadband models to be developed in the late 80-s was the Meteorological Radiation Model MRM. The main advantage of MRM over other similar models was its simplicity in acquiring and using the necessary input data, i.e., air temperature, relative humidity, barometric pressure and sunshine duration from any of the many meteorological stations. The present study describes briefly the various steps versions of MRM and in greater detail the latest version 5. To show the flexibility and great performance of the MRM, a harsh test of the code under the almost total solar eclipse conditions of 29 March 2006 over Athens was performed and comparison of its results with real measurements was made. From this hard comparison it is shown that the MRM can simulate solar radiation during a solar eclipse event as effectively as on a typical day. The value of this comparison is further enhanced if it said that the sky was cloudy almost all the duration of the solar eclipse event.

Author: B. E. Psiloglou - H. D. Kambezidis -



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