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atmospheric corrections to thermal IR data for estimation of land surface temperature

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Abstract

Satellite data provides important inputs far estimating regional surface emisslviiy and surface temperature. The methodology for estimation of emissivity over heterogeneous areas is based on the calculation of fraction vegetation cover per pixel taking NDVI, reflectances of pure pixels as input. The surface temperature is calculated using a sptit-window equation, which depends on atmospheric water vapour, viewing angle and channel surface emissivities. In the present study model coefficients for atmospheric corrections to NOAA AVHRR thermal data Fqr tropical atmospheres have been derived with a view to operationally use the methodolpgy for generating land surface temperature information from satellite data. The results of the study show that the estimated temperature values are comparable with the ctimatological values over the region Suggesting the possible use of the methodology.

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Authors and Affiliations

  1. National Remote Sensing Agency (Dept. of Space, Govt, of India), Hyderabad - 500037, Balanagar, India

    Yogesh Kant & K (xx)V S Badarinath

Authors
  1. Yogesh Kant
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  2. K (xx)V S Badarinath
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Kant, Y., Badarinath, K.(.S. atmospheric corrections to thermal IR data for estimation of land surface temperature. J Indian Soc Remote Sens 26, 113–120 (1998). https://doi.org/10.1007/BF03026668

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  • DOI: https://doi.org/10.1007/BF03026668

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