dielectric from Polarimetric Synthetic Aperture Radar (dPSAR) method using the PolSAR image by inverting the µ r , in addition to ε r parameters, that served as capability of the ground surface responds to the magnetic field. Measurement of µ r in the field using Ferromaster Magnetic Permeability Meter was carried out to analyze the accuracy of the inverted µ r from the dPSAR method. According to the validation test of µ r derived from dPSAR and field measurement, a high coefficient determination R 2 about 0.73 was achieved. In addition, the normality test showed that residual values were distributed normally. Therefore, the µr inversion using dPSAR method has the potential to be developed and applied for advanced physical surface geological mapping.

Identifying geological structures is a crucial step in geological field mapping. One common technique to interpret geological structures is using lineament analyses on the satellite imagery. The usual encounters is many lineaments do not concordance to the geological structures. Overcoming the problem, we used dual orbit Synthetic Aperture Radar (SAR) images to obtain lineaments related to geological structures at ground level. In this paper, we presented the sensitivity of the lineaments detection method visually and automatically using Yamaguchi and modified Segment Tracing Algorithm (mSTA) methods, respectively. The Yamaguchi method is a visual lineament detection using an optimum image-scale and resolution. The method was used to detect lineaments based on visual limitation of the interpreter. On the contrary, the mSTA method is an automatic lineament detection utilizing SAR backscattering intensity images in opposite Line of Sight (LOS). Accordingly, we compared the effectiveness between the visual and automatic detection methods in detecting the faults and joints correctly at ground surface. The verification of detected lineaments at the field was then performed and analyzed to obtain comparison of the effectiveness between two lineaments detection methods. The direction of joints at EKA-01 were oblique 45 degrees to Yamaguchi method, and 25 degrees to mSTA method. Besides, the direction of faults and joints at EKA-10 were oblique 5 degrees to Yamaguchi method, and 2 degrees to mSTA method. mSTA method has smaller offset angle to field measurements than Yamaguchi method, indicating that the automatic is more effective and representative to detect lineaments related to geological structures than visual method.

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Abstract. Geotourism has become well-known all around Indonesia as many placessustain distinctive characters – from the environment, aesthetics, culture, toresidents. Keramikan, without exception, located in the borders of Kecamatan Suohand Bandar Negeri Suoh has captured many local tourists by its exceptionalgeological and scientific importance: geothermal site. However, both tourists andthe management have to struggle to enjoy this attractive geosite because of the lackof accessibility and amenity. Therefore, attempt measures were done to exaggeratethe beauty of Keramikan geothermal site as a tourism site or geosite, including a)story-based socialization for locals that they can explain many ‘whys’ inside the siteto the coming tourists, b) explaining through video the existing condition ofaccessibility and amenity as well as how the management can improve, c) postermaking and distribution to start the health and safety awareness of the public,independent tourism organization, and Keramikan workers, and the government.Although attractions are undeniably appealing for stakeholders and tourists, the factthat accessibility and amenity cannot be improved due to regulation and licenserestrictions will be the downfall for the management. Therefore, this socialization isaimed to educate as well as to address the fundamental problems to the authority.Keywords: geotourism, geosite, Keramikan Suoh, socializationAbstrak. Pesona Wisata Keramikan Suoh, Kabupaten Lampung Barat, eratkaitannya dengan peristiwa vulkanik yang hebat dan berlangsung hingga sekarang.Pengelolaan daerah wisata ini sudah dilakukan, namun perlu dorongan danpengetahuan sebagai upaya meningkatkan daya tarik pengunjung. Upayapeningkatan daya tarik dilakukan dengan menyosialisasikan kejadian KawahKeramikan dan sekitarnya dari sudut pandang geologi dan legenda setempatkepada media massa dan mitra, yaitu Kelompok Sadar Wisata, pengelola, komunitasojek, Kecamatan Suoh, dan Dinas Pariwisata Lampung Barat. Upaya ini dilengkapidengan pembuatan dan menyosialisasi video berisikan aspek atraksi, aksesibilitasdan amenitas. Mitra juga dibekali dengan manfaat-manfaat air panas sertahimbauan kesehatan dan keselamatan kepada pengunjung. Mitra mengalamipeningkatan pemahaman potensi dengan disosialisasikannya potensi pengembangankepada komunitas ojek, pengelola, dan Kelompok Sadar Wisata dari segi atraksi.Namun, pemerintah, Dinas Pariwisata, dan pengelola Wisata Keramikan Suoh tidakdapat melakukan perbaikan akses dan pengembangan fasilitas pendukung(amenitas) karena perizinan. Selain observasi lapangan, metode wawancara jugadilakukan dengan hasil aksesibilitas dan amenitas yang kurang memadai akanmengurangi minat pengunjung walaupun Wisata Keramikan Suoh memiliki atraksikuat. Solusi permasalahan ini tidak dapat langsung dijawab, tetapi potensi dan hal-hal yang menghambat pengembangan wisata sudah diangkat ke pihak-pihak yang berwenang.Kata Kunci: geowisata, Keramikan Suoh, sosialisasi