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PENGARUH INVERSI FILTER Q TERHADAP AMPLITUDO SESAAT (INSTANSTANEOUS AMPLITUDE) DATA SEISMIK: THE EFFECT OF FILTER Q INVERSION ON AMPLITUDE INSTANT (INSTANEOUS AMPLITUDE) SEISMIC DATA Pamuji, Khristian Enggar
JISTECH: Journal of Information Science and Technology Vol 7 No 1 (2015): Pebruari 2015
Publisher : Universitas Papua

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Abstract

Seismic waves travelling through media are attenuated by the conversion of elastic energy into heat. Uponbeing attenuated, the travelling wave changes: amplitude is reduced, travelling waveform is modified due tohigh-frequency content absorption, and phase is delayed. In this study, the effect of attenuation on seismic datawas reduced by applying inverse Q filter method. Application of inverse Q filter on seismic data, can improve thequality and resolution of data. Improving the seismic data quality and its resolution can be seen at seismicattributes (Instantaneous Amplitude) of seismic data. The results of study indicate that the seismic attributes(instantaneous amplitude) would be better if the inverse Q filter was applied.
DAMPAK PENAMBANGAN BATU GAMPING TERHADAP CADANGAN AIR TANAH (Studi Kasus : Penambangan Batu Gamping, Maruni, Manokwari, Papua Barat): THE IMPACT OF LIMESTONE MINING ON GROUNDWATER RESERVES (Case Study : Limestone Mining, Maruni, Manokwari, West Papua) Pamuji, Khristian Enggar
JISTECH: Journal of Information Science and Technology Vol 6 No 2 (2014): Vol. 6, No. 2, Agustus 2014
Publisher : Universitas Papua

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Abstract

This research has been conducted in the limestone mining areal, Maruni, South Manokwari district, Manokwari regency, West Papua province. The purpose of this research was to analyze the impact of the limestone mining to groundwater reserve, using APLIS methode. The variables used in this study were altitude (elevation) above sea level, slope, lithology, infiltration zone, and soil.The result of this research shows that groundwater reserve has decreased. Limestone mining activities will reduce groundwater reserve up to 72%.
SURVEI GEOLISTRIK UNTUK MENGETAHUI POTENSI AIR TANAH DI KEPULAUAN AYAU, KABUPATEN RAJA AMPAT, PROVINSI PAPUA BARAT: GEOELECTRIC SURVEY TO KNOW THE POTENTIAL OF GROUNDWATER IN AYAU ISLANDS, RAJA AMPAT REGENCY, WEST PAPUA PROVINCE Pamuji, Khristian Enggar
JISTECH: Journal of Information Science and Technology Vol 6 No 1 (2014): Februari 2014
Publisher : Universitas Papua

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Abstract

Geoelectricity survey has been done in Ayau Islands, Raja Ampat Regency, West Papua Province. The measurement method that used is sounding, whereas electrode configuration used is Schlumberger configuration with a stretch of 100 -150 m. The data obtained are then processed by Progress Software. The results of this survey obtained show that in the geoelectricity sounding measurement point not found any good groundwater aquifers, as the water source of drilled well. Water layer with the thickness between 1-3 m at the surface (alluvial) is a rain water infiltration that is not recommended to make boreholes at this point.