Figure 4

Locations and basic information of the study area, generated by ArcGIS10.1 (http://www.esrichina.com.cn/softwareproduct/ArcGIS/). The length of the S233 in the validation area is 49 km.
Locations and basic information of the study area, generated by ArcGIS10.1 (http://www.esrichina.com.cn/softwareproduct/ArcGIS/). The length of the S233 in the validation area is 49 km.