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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Estimation of daytime surface fluxes of radiation and heat at Anand during 13-17 May 1997
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Estimation of daytime surface fluxes of radiation and heat at Anand during 13-17 May 1997

机译：估算1997年5月13日至17日Anand白天的表面辐射和热通量

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摘要

In this paper an attempt has been made to estimate radiative fluxes of short wave, long wave as well as non-radiative fluxes such as sensible heat flux and the surface soil heat flux during daytime over a bare soil at a tropical station Anand (22degrees35'N, 72degrees55E, 45.1 m asl), for the dry convective period 13-17 May 1997. The site-specific parameters such as attenuation coefficients, albedo, transmissivity, etc. are obtained with the help of observations during 2-11 May 1997. The results are compared with real time data. Comparison of estimated and observed radiative fluxes showed a good agreement. The root mean square error (rmse) is 3% for incoming solar radiation and 8% for net radiation. The sensible heat flux is in general underestimated. The surface soil heat flux values estimated by two different methods are fairly close to each other. The surface temperature estimated by Fourier's law for heat conduction shows good agreement with the observed values with rmse 5%.
机译：本文试图估算热带站Anand（22°35'）上的裸露土壤在白天的短波，长波辐射通量以及非辐射通量，例如显热通量和表层土壤热通量。 N，72度55 E，45.1 m asl），适用于1997年5月13日至17日的干燥对流。地点特定参数，例如衰减系数，反照率，透射率等，是借助1997年5月2日至11日的观测获得的。将结果与实时数据进行比较。比较估计和观察到的辐射通量显示出很好的一致性。入射太阳辐射的均方根误差（rmse）为3％，净辐射为8％。显热通量通常被低估。用两种不同方法估算的地表土壤热通量值彼此非常接近。由傅立叶定律估算的热传导表面温度与rmse 5％的观测值显示出良好的一致性。

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