Mining Land Identification in Wetar Island Using Remote Sensing Data

Wetar Island is one of the 92 outer islands of Indonesia. On this island, there is a variety of geological potential that can be seen from the structure, formation and geological folds including mine geology potential energy and mineral resources. This makes the island having mining activities. Remote sensing data in the form of optical images, Synthetic Aperture Radar, microwave, laser, and others can be used to determine the mining activities in Wetar Island. This research was focused on mining land identification in Wetar Island. This study aimed to identify the mining land in Wetar Island using remote sensing data. The method used was the Vegetation Index Differencing, which calculated difference value of vegetation index temporally. Landsat satellite images of 1975, 1990, 2000 and 2005 were used for mining land identification. First Landsat satellite image must have had a geometric and radiometric correction. The results obtained were in the form of mining land identification and non- mining land area. These results are useful for monitoring the mining activities carried out on Wetar Island. The methods used may also be applied to monitor, identify, and evaluate various mining operations in other parts of Indonesia. Mining region that has been identified can be used for management and planning of maritime space

Comprehensive integration system of saltwater environment on Rote Island using a multidisciplinary approach

Rote Island is one of the islands in southern of Indonesia. This region experiences very high geological and geodynamic processes. This is evidenced by the abundance of seabed rising, and there is a dead sea lake area that has a higher salinity than the sea. Biodiversity on Rote Island has endemic and unique flora and fauna. This study aims to create an integrated system of inland waters resources on Rote Island with a multidisciplinary approach. Inland water resources on Rote Island number more than 80 lakes and ponds. An inland water resource on Rote Island is a saltwater environment. The extraction of geobiophysical information on inland water resources is needed by studying various aspects of multidisciplinary. The aspects studied are limnology, water quality, conservation of forest resources, geology, geodynamics, water resources, geodesy and geomatics engineering. All geobiophysical information needs to be integrated into an integration system. This is useful for efficiency and effectiveness in the utilization of data and information. This integration system (geovisualization) is in the form of WebGIS and storytelling maps. This integration system is dynamic so it can update its latest spatial information. This integration system can be used to promote Rote island tourism. This integration system can be accessed via the website geopark4rote.com. This integration system can be applied in other regions so reached one map policy and a system for inland water resources will be realized in Indonesia