Abstract
Recently , rise in temperature of the urban area by the heat island effect becomes the problem under the influence of global warming and urbanization. Therefore, Tokyo Metropolitan Government was aimed for temperature reduction and established the regulations about protection and the recovery of nature in Tokyo in 2001. These regulations are aimed for improvement of the green coverage ratio and demand the presentation of the afforesting plan for a company developing the applicable structure construction. Temperature reduction caused by the roof tree planting attracts attention, and increase and transpiration of the quantity of absorption of carbon dioxide are expected. The purpose of this study was to examine the extraction method of the roof top greening area of Chiyoda Ward by the normalized vegetation index value by using the multispectral satellite observation information of WorldView-3 satellite data. The extraction accuracy of the roof top greening area of the sunshines region and the shades region was appropriately evaluated by combining using the GIS data of the building shape was shown. It was considered that this technique was effectively used from these results to evaluate the roof top greening in the future.
