T Papers

Determination of Shallow Groundwater Level Change Using Repeat Gravity Measurements at the Central Part of Unzen Volcano (Nagasaki Prefecture, Japan) from 1999 to 2004
Hakim SAIBI, Jun NISHIJIMA, Sachio EHARA, Yasuhiro FUJIMITSU and Koichiro FUKUOKA
Proceedings of 30th Annual Workshop Geothermal Reservoir Engineering, Stanford Geothermal Workshop, pp.201-208, January, 2005

Operational Characteristics of the Small-Scale Geothermal Power Generation System with the Downhole Coaxial Heat Exchanger
Koji MORITA, Makoto TAGO and Sachio EHARA
J. Geotherm. Res. Soc. Japan, Vol.27, No.2, pp.149-162, April, 2005, in Japanese with English Abstract

Imaging of Subsurface Structure Beneath Obama Area, Japan Using Gravity Data
Hakim SAIBI, Jun NISHIJIMA and Sachio EHARA
Extended Abstracts & Exhibitor's Catalogue of 2nd North African/Mediterranean Petroleum & Geosciences Conference and Exhibition, CD-ROM, April, 2005

Spatial Variability of Piezometric Level in Oued-souf Area (Eastern of Algeria) Using Geostatistical Methods
Hakim SAIBI, Mohamed MESBAH, Ahcene SEMMAR and Sachio EHARA
Proceedings of the SGCC2, Seminaire International sur la Geologie du Grand Constantinois et les Confins algero-tunisiens, pp.1-10, May, 2005

Change in the Thermal State in a Volcanic Geothermal Reservoir beneath an Active Fumarolic Field after the 1995 Phreatic Eruption of Kuju Volcano, Japan
Sachio EHARA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Koichiro FUKUOKA and Masayuki OZAWA
Proceedings of World Geothermal Congress 2005, CD-ROM, May, 2005

Change in the Shallow Resistivity Structure after 1995 Phreatic Eruption at Kuju Volcano, Japan
Koichiro FUKUOKA, Sachio EHARA, Yasuhiro FUJIMITSU and Jun NISHIJIMA
Proceedings of World Geothermal Congress 2005, CD-ROM, May, 2005

Micro-Gravity Monitoring and Repeated GPS Survey at Hatchobaru Geothermal Field, Central Kyushu, Japan
Jun NISHIJIMA, Yasuhiro FUJIMITSU, Sachio EHARA, Etsuro KOUNO and Masao YAMAUCHI
Proceedings of World Geothermal Congress 2005, CD-ROM, May, 2005

Case Studies on Small-Scale Power Generation with the Downhole Coaxial Heat Exchanger
Koji MORITA, Makoto TAGO and Sachio EHARA
Proceedings of World Geothermal Congress 2005, CD-ROM, May, 2005

Estimation of Radioactive Heat Production from Airborne Spectral Gamma-Ray Data of Gebel Duwi Area, Egypt
Ahmed SALEM, Abouelhoda ELSIRAFY, Atef ISMAIL, Sachio EHRA and Keisuke USHIJIMA
Proceedings of World Geothermal Congress 2005, CD-ROM, May, 2005

Hydrothermal System after the 1990-95 Eruption near the Lava Dome of Unzen Volcano, Japan
Yasuhiro FUJIMITSU, Rhohei KANOU, Jun NISHIJIMA and Sachio EHARA
Procedings of World Geothermal Congress 2005, CD-ROM, May, 2005

Searching for an Opportunity in the Development of Direct Use Geothermal Resource: A Case Study in West Java Province- Indonesia
SURYANTINI, Ali ASHART, Dan Ramadhan AHMAD, Janes SIMANJUNTAK, Lambok M. HUTASOIT and Ismail HASJIM
Proceedings of World Geothermal Congress 2005, CD-ROM, May, 2005

Research and Development on an Integrated Airborne Geophysical Prospecting (ii)
Kenichiro KUSUNOKI, Hideshi KAIEDA, Hisatoshi ITO, Toru MOGI, Yoshikazu TANAKA, Yasuhiro FUJIMITSU, Youichi YUUKI and Development Group
Proceedings of 112th conference of Society of Engineering Geophysicists Japan, pp.299-302, May, 2005, in Japanese

Changes in Groundwater before and after the Earthquake off Western Part of Fukuoka Prefecture on March 20, 2005
Sachio EHARA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Koichro FUKUOKA, Udi HARMOKO, Kenji KUBOTA, Mitsuo MATSUMOTO, Saibi HAKIM, SURYANTINI, Keiko FUJINO, Tukasa ENDO, Takasi, KURODA, YuichI NARASAKI, Toshiharu KIDO, Kotaro SAKEMI, Chisuga IDE, Shin KAMIOKA, Tomohiro HIRANO and Yudai YAMAMOTO
NEWS of WESTERN JAPAN NDIC, No.33, pp.13-18, June, 2005, in Japanese

Earthquake off Western Part of Fukuoka Prefecture on March 20, 2005 and High Density Gravity Anomaly Map
Jun NISHIJIMA, Yasuhiro FUJIMITSU, Koichiro FUKUOKA and Sachio EHARA
NEWS of WESTERN JAPAN NDIC, NO.33, pp.19-22, June, 2005, in Japanese

The Effect of Weathering on Reflectance Spectra of Hydrothermal White Micas and Chlorites
SURYANTINI, Sachio EHARA, F. J. A. van RUITENBEEK and F. D. van der MEER
Proceedings of 8th Biennial SGA Meeting, pp.1-4, August, 2005

Monitoring of the Ground Water Variation in Urban Area, by Combining GRACE Data and In-situ Gravity Measurement
Keiko YAMAMOTO, Yoichi FUKUDA, Toshiyuki NAKAEGAWA, and Jun NISHIJIMA
On-line paper, Dynamic Planet 2005, Cairus, Australia, The International Association of Geodesy, August, 2005

Development of a New Heating and Cooling System with the Downhole Coaxial Heat Exchanger (DCHE) and Ground-Source Heat Pumps
Sachio EHARA, Koji MORITA, Koichro FUKUOKA, Takashi KURODA, Kotaro SAKEMI, Yasuhiro FUJIMITSU and Jun NISHIJIMA
Proceedings of SB05 Tokyo, CD-ROM, September, 2005

Changes in Groundwater Level and Seismic Activity before and after the Earthquake off Western Part of Fukuoka Prefecture on March 20, 2005
Koichiro FUKUOKA, Sachio EHARA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Harmoko UDI and Mitsuo MATSUMOTO
Proceedings of 113th conference of Society of Engineering Geophysicists Japan, pp.36-39, October, 2005, in Japanese with English Abstract

Electrical Prospecting of Groundwater for Ground-Coupled Heat Pump Systems
Toshiaki TANAKA, Rie SAKAGUCHI, Koichiro FUKUOKA, Hikari FUJII and Tetsuo YOSHIDA
Proceedings of 113th conference of Society of Engineering Geophysicists Japan, pp.307-310, October, 2005, in Japanese

Gravity Changes due to Ground Water Level Changes at Bangkok, Thailand -Report of Preliminary Survey-
Jun NISHIJIMA and Yoichi FUKUDA
Proceedings of RIHN International Symposium on Human Impacts on Urban Subsurface Environments, pp.134-137, October, 2005

Estimation of Heat Discharge Rates from Unzen Geothermal Area, Japan, by Using the Heat Balance Technique
Yasuhiro FUJIMITSU, Toshiharu KIDO, Jun NISHIJIMA and Sachio EHARA
Proceedings of 27th New Zealand Geothermal Workshop 2005, On-line paper, October, 2005

Geothermal System of Guntur Volcano West Java - Indonesia, a Preliminary Integrated Study Using ASTER Image, Magnetotelluric, and 3D Tomographic with Field Reconnaissance
Asep SAEPULOH, SURYANTINI and Prihadi A. SUMINTADIREJA
Proceedings of 3rd International Workshop on Earth Science and Technology, pp.1-10, December, 2005

Geochemistry and Geothermometry of Hot Waters from the Obama Geothermal Field, between 1984 and 2001
SURYANTINI, Lucas D. SETIJADJI, Rina WAHYUNINGSIH, Sachio EHARA, Akira IMAI and Koichiro WATANABE
Proceedings of 3rd International Workshop on Earth Science and Technology, pp.11-18, December, 2005

Geothermal Gradient Study of On-shore North West Java Basin from Petroleum Wells
SURYANTINI and Sachio EHARA
Proceedings of 3rd International Workshop on Earth Science and Technology, pp.29-39, December, 2005

Joint Use of Analytic Signal, Second Vertical Derivative and Transformation Filter for 2D and 3D Gravity Data Interpretation
Hakim SAIBI, Jun NISHIJIMA and Sachio EHARA
Proceedings of 3rd International Workshop on Earth Science and Technology, pp.97-104, December, 2005

The Hydrothermal Study of Merapi Volcano, Central Java, Indonesia
Harmoko UDI, Sachio EHARA and Yasuhiro FUJIMITSU
Proceedings of 3rd International Workshop on Earth Science and Technology, pp.251-258, December, 2005

High-accuracy Estimation of Heat Discharge Rates from the Geothermal Areas of Unzen by the Heat Balance Method
Toshiharu KIDO, Yasuhiro FUJIMITSU, Jun NISHIJIMA and Sachio EHARA
Geothermal and Volcanological Research Report of Kyushu University, No.14, pp.2-8, December, 2005, in Japanese with English Abstract

Numerical Investigation of the Early Stage of a Cooling Magma Chamber Considering Natural Convection, Vesiculation and Degassing
Mitsuo MATSUMOTO, Sachio EHARA, Yasuhiro FUJIMITSU and Jun NISHIJIMA
Geothermal and Volcanological Research Report of Kyushu University, No.14, pp.9-18, December, 2005

Air Conditioning System with Ground-Coupled Heat Pump at Islandcity, Fukuoka
Kotaro SAKEMI, Takashi KURODA, Koji MORITA, Koichiro FUKUOKA and Sachio EHARA
Geothermal and Volcanological Research Report of Kyushu University, No.14, pp.19-26, December, 2005, in Japanese with English Abstract

Reservoir Monitoring by Repeat Microgravity Measurement at Obama Geothermal Field, Southwestern Japan
Hakim SAIBI, Jun NISHIJIMA and Sachio EHARA
Geothermal and Volcanological Research Report of Kyushu University, No.14, pp.27-31, December, 2005

Changes in Groundwater Level Prior to an Earthquake in the Off-shore Area West of Fukuoka Prefecture, Japan, on 20 March 2005 and Several Subsequent Large Aftershocks, Offering the Possibility of Deterministic Earthquake Prediction
Sachio EHARA, Koichiro FUKUOKA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Udi HARMOKO and Mitsuo MATSUMOTO
Geothermal and Volcanological Research Report of Kyushu University, No.14, pp.32-40, December, 2005

Densed Gravity Survey around the Kego fault, Fukuoka city
Jun NISHIJIMA, Tomohiro HIRANO and Yasuhiro FUJIMITSU
Geothermal and Volcanological Research Report of Kyushu University, No.14, pp.41-50, December, 2005, in Japanese with English Abstract

Geophysical Observations at Kuju Volcano by KGVRS (1995-2005)
Kuju Geothermal and Volcanological Research Station
Yasuhiro FUJIMITSU, Jun NISHIJIMA, Koichiro FUKUOKA and Sachio EHARA
Geothermal and Volcanological Research Report of Kyushu University, No.14, pp.51-67, December, 2005, in Japanese

U Others

A New Ground-Coupled Heat Pump Survived the Magnitude 7.0 Earthquake in Fukuoka, Kyushu, Japan
Sachio EHARA, Koichiro FUKUOKA and Koji MORITA
Newsletter of the International Geothermal Association, No.61, pp.15-13, September, 2005