Retracted: Study on the Efficiency of Cool Island Effect in Urban Channel Water

The urban heat island (UHI) phenomenon has been studied extensively. There are also urban cool island bodies, such as water and green spaces, but relatively fewer reports explored the urban cool island (UCI) phenomenon. The goal of this work is to find the effective urban channel water pattern to bring down the temperature in summer. The relevant elements of water cooling effect were identified by Dalton's law of evaporation, and “land's cool island region” was put forward to indicate the cool island's effect on exploitable land. The landsat+Thermal Infrared Sensor (TIRS) date and Envi softwear were applied to obtain the land surface temperature and the spatial characters. Analysis results indicated that with the increase of water's width, the range of “land's cool island region” is amplified, but the efficiency of unit width water's land's cool island region is decreasing. This work puts forward “narrow section, dense water network” as an urban water environment planning layout pattern based on the efficiency of unit width water.