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A technique for mapping downward longwave radiation using satellite and ground-based data in the tropics

Citation

Masiri, I and Janjai, S and Nunez, M and Anusasananan, P, A technique for mapping downward longwave radiation using satellite and ground-based data in the tropics, Renewable Energy, 103 pp. 171-179. ISSN 0960-1481 (2017) [Refereed Article]

Copyright Statement

Copyright 2016 Elsevier Ltd.

DOI: doi:10.1016/j.renene.2016.11.018

Abstract

This paper presents a technique for mapping monthly average hourly downward longwave (LW) irradiance using ground- and satellite-based data. A model relating LW irradiance to a satellite derived-brightness temperature of the earth-atmospheric system, relative humidity and ambient air temperature was formulated. This model was validated against LW irradiance obtained from measurements at 4 sites in the tropics and discrepancy in terms of root mean square errors and mean bias errors was found to be 1.89% and −0.69%, respectively. After the validation, the model was used to calculate monthly average hourly LW irradiance over Thailand and the results were displayed as LW maps. These maps reveal the influence of various factors on LW irradiance.

Item Details

Item Type:Refereed Article
Keywords:long wave radiation
Research Division:Earth Sciences
Research Group:Atmospheric Sciences
Research Field:Atmospheric Radiation
Objective Division:Environment
Objective Group:Atmosphere and Weather
Objective Field:Atmospheric Processes and Dynamics
Author:Nunez, M (Dr Manuel Nunez)
ID Code:113787
Year Published:2017
Deposited By:Tasmanian Institute of Agriculture
Deposited On:2017-01-20
Last Modified:2017-11-15
Downloads:0

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