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International Journal of Photoenergy
Volume 2014, Article ID 468562, 7 pages
Research Article

A Typical Meteorological Year Generation Based on NASA Satellite Imagery (GEOS-I) for Sokoto, Nigeria

1Mechanical Engineering Department, Covenant University, Ota, Ogun State, Nigeria
2Department of Ecology and Natural Resources Management, The Norwegian University of Life Sciences, Ås, Norway
3Department of Mechanical Engineering, University of Ibadan, Oyo State, Nigeria
4Department of Mechanical Engineering, Obafemi Awolowo University, Ile-Ife, Nigeria
5Department of Mechanical Engineering, Michael Okpara University of Agriculture, Umudike, Abia State, Nigeria

Received 20 October 2013; Accepted 10 February 2014; Published 17 March 2014

Academic Editor: Dionissios Mantzavinos

Copyright © 2014 Olayinka S. Ohunakin et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Computer simulation of buildings and solar energy systems are being used increasingly in energy assessments and design. This paper evaluates the typical meteorological year (TMY) for Sokoto, northwest region, Nigeria, using 23-year hourly weather data including global solar radiation, dew point temperature, mean temperature, maximum temperature, minimum temperature, relative humidity, and wind speed. Filkenstein-Schafer statistical method was utilized for the creation of a TMY for the site. The persistence of mean dry bulb temperature and daily global horizontal radiation on the five candidate months were evaluated. TMY predictions were compared with the 23-year long-term average values and are found to have close agreement and can be used in building energy simulation for comparative energy efficiency study.