| GM(1,1) prediction models were established, which was based on the data of sulfur dioxide and chloride contents from the year 2002 to 2007 in Wuhan. The differences among different dimensions GM(1,1) model prediction results were investigated. Moreover, the GM(1,1) models of the two typical atmospheric corrosion mediums were tested. The result showed that GM(1,1) model has high prediction accuracy, and the accuracy class achieves level1. |