Can the Peat Thickness Classes be Estimated ..... @National Institute of Aeronautics and Space of Indonesia (LAPAN) 151 DETECTING THE AREA DAMAGE DUE TO COAL MINING ACTIVITIES USING LANDSAT MULTITEMPORAL (Case Study: Kutai Kartanegara, East Kalimantan) Suwarsono * , Nanik Suryo Haryani, Indah Prasasti, Hana Listi Fitriana M. Priyatna, M. Rokhis Khomarudin Remote Sensing Application Center Indonesian National Institute of Aeronautics and Space (LAPAN) * e-mail: suwarsono@lapan.go.id / landsono@yahoo.com Received: 29 November 2017; Revised: 22 November 2017; Approved: 25 December 2017 Abstract. Coal is one of the most mining commodities to date, especially to supply both national and international energy needs. Coal mining activities that are not well managed will have an impact on the occurrence of environmental damage. This research tried to utilize the multitemporal Landsat data to analyze the land damage caused by coal mining activities. The research took place at several coal mine sites in East Kalimantan Province. The method developed in this research is the method of change detection. The study tried to know the land damage caused by mining activities using NDVI (Normalized Difference Vegetation Index), NDSI (Normalized Difference Soil Index), NDWI (Normalized Difference Water Index) and GEMI (Global Environment Monitoring Index) parameter based change detection method. The results showed that coal mine area along with the damage that occurred in it can be detected from multitemporal Landsat data using NDSI value-based change detection method. The area damage due to coal mining activities can be classified into high, moderate, and low classes based on the mean and standard deviation of NDSI changes (ΔNDSI). The results of this study are expected to be used to support government efforts and mining managers in post-mining land reclamation activities. Keywords: damage area, coal mining, landsat multitemporal 1 INTRODUCTION Mining activities cause serious impacts on ecosystems worldwide (Schroeter and Gläber 2011). The Government has a mandate to control pollution and environmental damage based on Indonesia Law Number 32 the Year 2009 on Environmental Protection and Management. According to the Law, environmental protection and management is a systematic and integrated effort undertaken to preserve environmental functions and prevent pollution and/or environmental damage including planning, utilization, control, maintenance, supervision and law enforcement. One of the activities that have great potential to cause environmental pollution is mining activities. Mining activities have two opposite sides, namely as a carrier of the country's economic prosperity and as an environmental impact carrier that requires considerable energy, thought, and cost for its recovery process (Marganingrum and Noviardi 2010). Coal is one of the most mining commodities to date, especially to supply both national and international energy International Journal of Remote Sensing and Earth Sciences Vol.14 No. 2 December 2017: 151 - 158