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Estimation of surface temperature from MONTBLEX data

Rao, Narahari K (1995) Estimation of surface temperature from MONTBLEX data. In: Proceedings of the Indian Academy of Sciences - Earth & Planetary Sciences, 104 (2). pp. 257-271.

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Abstract

It is observed that the daily mean temperature of the soil is linear with depth and the variation of the temperature is sinusoidal with a period of a day. Based on these observations the one-dimensional heat conduction equation for the soil can be solved which gives the amplitude and phase variation of the temperature wave with depth. Given the temperature data at three levels below the surface, the amplitude and phase variation and hence the surface temperature variation over the day are estimated. The daily mean temperature of the surface is estimated from linear extrapolation of the daily means at the three levels below the surface. Estimated values of soil thermal diffusivity show a subtantial change after sudden and heavy rains.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Indian Academy of Sciences.
Keywords: Soil and surface temperature;diurnal variation;phase and amplitude of temperature waves;thermal diffusivity.
Department/Centre: Division of Mechanical Sciences > Centre for Atmospheric & Oceanic Sciences
Date Deposited: 19 May 2011 04:31
Last Modified: 19 May 2011 04:31
URI: http://eprints.iisc.ernet.in/id/eprint/37726

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