The effect of green open space (RTH) on the comfort index (THI) in the city of Tasikmalaya

Tasikmalaya City is one of the cities that is experiencing very rapid development growth. The impact is the conversion of land functions, especially from green open space (RTH) to built-up land, including the forest area has decreased from 342.90 ha in 2002 to 174.70 ha in 2018. The reduction in RTH has an impact on decreasing the level of comfort in Tasikmalaya City. The aims of this study are (a) to determine the distribution of RTH in the city of Tasikmalaya, (b) to determine the comfort index of THI in the city of Tasikmalaya in 2020, and (c) to determine the effect of the distribution of RTH in the city of Tasikmalaya on the THI in 2020. The data used are image data GeoEye1 to analyze the distribution of RTH in Tasikmalaya City, Landsat 8 imagery to extract temperature data from Tasikmalaya City, and secondary data in the form of relative humidity from the Wiriadinata airbase station. The method used in assessing the comfort index in the City of Tasikmalaya employed the method Temperature Humidity Index (THI). The results showed that there was a close influence of the area of RTH on the THI in the city of Tasikmalaya, where the wider the RTH, the lower the THI value or the higher the comfort index. This study is expected to be input for relevant agencies to pay attention to comfort by maintaining and preserving RTH to create a beautiful and comfortable city of Tasikmalaya.