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International Journal of Photoenergy
Volume 2012, Article ID 538279, 9 pages
Research Article

A Modified Method to Generate Typical Meteorological Years from the Long-Term Weather Database

1School of Electrical Engineering, Southeast University, Nanjing 210096, China
2Pacific Northwest National Laboratory, P.O. Box 999, Richland, WA 99352, USA
3Department of Electrical and Electronics Engineering, Aichi Institute of Technology, 1247 Yachigusa, Yakusa-cho, Toyota, Aichi 470-0392, Japan

Received 11 August 2011; Revised 20 October 2011; Accepted 31 October 2011

Academic Editor: Junwang Tang

Copyright © 2012 Haixiang Zang 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.


A modified typical meteorological year (TMY) method is proposed for generating TMY from practical measured weather data. A total of eleven weather indices and novel assigned weighting factors are applied in the processing of forming the TMY database. TMYs of 35 cities in China are generated based on the latest and accurate measured weather data (dry bulb temperature, relative humidity, wind velocity, atmospheric pressure, and daily global solar radiation) in the period of 1994–2010. The TMY data and typical solar radiation data are also investigated and analyzed in this paper, which are important in the utilizations of solar energy systems.