A fuzzy neural network model to forecast the percent cloud coverage and cloud top temperature maps

Creative Commons License

TULUNAY Y., Senalp E. T., Oez S., Dorman L. I., Tulunay E., Menteş Ş. S., ...More

ANNALES GEOPHYSICAE, vol.26, no.12, pp.3945-3954, 2008 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 26 Issue: 12
  • Publication Date: 2008
  • Doi Number: 10.5194/angeo-26-3945-2008
  • Journal Name: ANNALES GEOPHYSICAE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.3945-3954
  • Middle East Technical University Affiliated: Yes

Abstract

Atmospheric processes are highly nonlinear. A small group at the METU in Ankara has been working on a fuzzy data driven generic model of nonlinear processes. The model developed is called the Middle East Technical University Fuzzy Neural Network Model (METU-FNNM). The METU-FNN-M consists of a Fuzzy Inference System (METU-FIS), a data driven Neural Network module (METU-FNN) of one hidden layer and several neurons, and a mapping module, which employs the Bezier Surface Mapping technique. In this paper, the percent cloud coverage (%CC) and cloud top temperatures (CTT) are forecast one month ahead of time at 96 grid locations. The probable influence of cosmic rays and sunspot numbers on cloudiness is considered by using the METU-FNN-M.