A new method for detemining the Angstrom turbidity coefficient from broad-band filter measurements.
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A new method for detemining the Angstrom turbidity coefficient from broad-band filter measurements.

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A new method for detemining the Angstrom turbidity coefficient from broad-band filter measurements.

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Utrillas Esteban, María Pilar Perfil; Pedrós Esteban, Roberto; Martínez Lozano, José Antonio Perfil; Tena Sangüesa, Fernando
This document is a artículoDate2000

Este documento está disponible también en : http://hdl.handle.net/10550/45023
In this work, a new method for determining Ångström turbidity coefficients is presented. This method is based on broadband filter irradiance measurements. By combining measurements obtained with different filters it is possible to obtain a single value of the turbidity coefficient representative of the whole measurement range of the pyrheliometer. The results provided by this new method are compared with the original Ångström method and turbidity coefficient values derived by spectroradiometric measurements. The results reproduce the actual values, as measured by a spectroradiometer, better than the previous best correlation did, thus demonstrating the advantage of analyzing the optical thickness from bands covering the whole spectral range.

    Utrillas Esteban, María Pilar Pedrós Esteban, Roberto Martínez Lozano, José Antonio Tena Sangüesa, Fernando 2000 A new method for detemining the Angstrom turbidity coefficient from broad-band filter measurements. Journal of Applied Meteorology 39 6 863 874
http://dx.doi.org/10.1175/1520-0450(2000)039<0863:ANMFDT>2.0.CO;2

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