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Articles 31 - 43 of 43
Full-Text Articles in Entire DC Network
An Examination Of The Impact Of Air From China On Summertime Air Quality In Japan Before, During, And After The Beijing Olympics, Gary A. Morris, Hajime Akimoto, Masayuki Takigawa, Jun Hirokawa, Fumio Hasebe, Masatomo Fujiwara, Koji Miyagawa, Nicholay Krotkov, Jacquie Witte, Yugo Kanaya, Nathan Kellams, Ted Pietrzak
An Examination Of The Impact Of Air From China On Summertime Air Quality In Japan Before, During, And After The Beijing Olympics, Gary A. Morris, Hajime Akimoto, Masayuki Takigawa, Jun Hirokawa, Fumio Hasebe, Masatomo Fujiwara, Koji Miyagawa, Nicholay Krotkov, Jacquie Witte, Yugo Kanaya, Nathan Kellams, Ted Pietrzak
Physics and Astronomy Faculty Presentations
During July – September 2008 pollution controls in China associated with the Beijing Olympics led to emissions reductions of up to 43%, as observed by NASA satellite instruments. Pollution from China has an impact on air quality throughout East Asia. In this poster, we examine the impact of China's pollution on Japan through the use of Aura satellite data (2005 – 2009), ozonesonde data (2000 – 2009), and data from air quality surface monitors (2000 – 2009). We also examine the year-to-year variability in meteorological flow regimes through trajectory model simulations of transport to Japan from the areas around Beijing …
An Examination Of The Impact Of Air From China On Summertime Air Quality In Japan Before, During, And After The Beijing Olympics, Gary A. Morris, Hajime Akimoto, Masayuki Takigawa, Jun Hirokawa, Fumio Hasebe, Masatomo Fujiwara, Koji Miyagawa, Nicholay Krotkov, Jacquie Witte, Yugo Kanaya, Nathan Kellams, Ted Pietrzak
An Examination Of The Impact Of Air From China On Summertime Air Quality In Japan Before, During, And After The Beijing Olympics, Gary A. Morris, Hajime Akimoto, Masayuki Takigawa, Jun Hirokawa, Fumio Hasebe, Masatomo Fujiwara, Koji Miyagawa, Nicholay Krotkov, Jacquie Witte, Yugo Kanaya, Nathan Kellams, Ted Pietrzak
Gary A. Morris
During July – September 2008 pollution controls in China associated with the Beijing Olympics led to emissions reductions of up to 43%, as observed by NASA satellite instruments. Pollution from China has an impact on air quality throughout East Asia. In this poster, we examine the impact of China's pollution on Japan through the use of Aura satellite data (2005 – 2009), ozonesonde data (2000 – 2009), and data from air quality surface monitors (2000 – 2009). We also examine the year-to-year variability in meteorological flow regimes through trajectory model simulations of transport to Japan from the areas around Beijing …
Interactions Between Deformation And Fluids In The Frontal Thrust Region Of The Nantroseize Transect Offshore The Kii Peninsula, Japan: Results From Iodp Expedition 316 Sites C0006 And C0007, E Screaton, G Kimura, D Curewitz, G Moore, F Chester, O Fabbri, Christopher L. Fergusson, F Girault, D Goldsby, R Harris, F Inagaki, T Jiang, Y Kitamura, M Knuth, C-F Li, L Claesson Liljedahl, L Louis, K Milliken, U Nicholson, N Riedinger, A Sakaguchi, E Solomon, M Strasser, X Su, A Tsutsumi, A Yamaguchi, K Ujiee, X. Zhao
Interactions Between Deformation And Fluids In The Frontal Thrust Region Of The Nantroseize Transect Offshore The Kii Peninsula, Japan: Results From Iodp Expedition 316 Sites C0006 And C0007, E Screaton, G Kimura, D Curewitz, G Moore, F Chester, O Fabbri, Christopher L. Fergusson, F Girault, D Goldsby, R Harris, F Inagaki, T Jiang, Y Kitamura, M Knuth, C-F Li, L Claesson Liljedahl, L Louis, K Milliken, U Nicholson, N Riedinger, A Sakaguchi, E Solomon, M Strasser, X Su, A Tsutsumi, A Yamaguchi, K Ujiee, X. Zhao
Faculty of Science - Papers (Archive)
Integrated Ocean Drilling Program (IODP) Expedition 316 Sites C0006 and C0007 examined the deformation front of the Nankai accretionary prism offshore the Kii Peninsula, Japan. In the drilling area, the frontal thrust shows unusual behavior as compared to other regions of the Nankai Trough. Drilling results, integrated with observations from seismic reflection profiles, suggest that the frontal thrust has been active since similar to 0.78-0.436 Ma and accommodated similar to 13 to 34% of the estimated plate convergence during that time. The remainder has likely been distributed among out-of-sequence thrusts further landward and/or accommodated through diffuse shortening. Unlike results of …
Public Service Reform Through E-Government: A Case Study Of 'E-Tax' In Japan, Akemi T. Chatfield
Public Service Reform Through E-Government: A Case Study Of 'E-Tax' In Japan, Akemi T. Chatfield
Faculty of Informatics - Papers (Archive)
There is a growing interest in the debate over whether or not e-government has a transformational impact on government performance, governance, and public service, as we addressed this very issue at the 2007 ECEG. However, e-government research results on the transformational impact are mixed. This may be an apt reflection of either the early stages of e-government development or the newness of e-government research field or both. Our research goal as scholars of e-government must be to penetrate appearances to ascertain whatever lessons and meanings might lie beneath. This paper is an initial attempt toward achieving this goal. The main …
Slides: Threats To Biological Diversity: Global, Continental, Local, J. Michael Scott
Slides: Threats To Biological Diversity: Global, Continental, Local, J. Michael Scott
Shifting Baselines and New Meridians: Water, Resources, Landscapes, and the Transformation of the American West (Summer Conference, June 4-6)
Presenter: J. Michael Scott, U.S. Geological Survey, Idaho Cooperative Fish and Wildlife Research Unit, University of Idaho
38 slides
Composition, Microstructures, And Petrophysics Of The Mozumi Fault, Japan: In Situ Analyses Of Fault Zone Properties And Structure In Sedimentary Rocks From Shallow Crustal Levels, Angela J. Isaacs, James P. Evans, Peter T. Kolesar, Tsuyoshi Nohara
Composition, Microstructures, And Petrophysics Of The Mozumi Fault, Japan: In Situ Analyses Of Fault Zone Properties And Structure In Sedimentary Rocks From Shallow Crustal Levels, Angela J. Isaacs, James P. Evans, Peter T. Kolesar, Tsuyoshi Nohara
Geosciences Faculty Publications
[1] We characterize the chemical, microstructural, and geophysical properties of fault-related rock samples from the 80–100 m wide Mozumi fault zone, north central Honshu, Japan. The fault is exposed in a research tunnel 300–400 m below the ground, and we combine geological data with borehole geophysical logs to determine the elastic and seismic properties of the fault zone. Detailed mapping within the tunnel reveals that the fault zone consists of two zones of breccia to foliated cataclasites 20 and 50 m thick. Two narrow (tens of centimeters wide) principal slip zones on which most of the slip occurred bound the …
Effect Of Regional Tectonic Setting On Local Fault Response To Episodes Of Volcanic Activity, Diana C. Roman, Philip Heron
Effect Of Regional Tectonic Setting On Local Fault Response To Episodes Of Volcanic Activity, Diana C. Roman, Philip Heron
Geology Faculty Publications
In this study we examine the interaction of tectonic and volcanically-generated stress fields, and their combined effect on patterns of volcanotectonic (VT) seismicity, by calculating Coulomb stress changes on local faults induced by a constant dike inflation event in a background stress field of systematically varying magnitude and orientation. We find that patterns of VT seismicity (earthquake locations and fault-plane solutions) resulting from dike inflation depend strongly on the relative strength and orientation of background tectonic stresses. Patterns of VT seismicity similar to those predicted by our Coulomb stress models have been observed at several recently active volcanoes, and appear …
743 ± 17 Ma Granite Clast From Jurassic Conglomerate, Kamiaso, Mino Terrane, Japan: The Case For South China Craton Provenance (Korean Gyeonggi Block?), Allen Phillip Nutman, Y Sano, K Terada, H Hidaka
743 ± 17 Ma Granite Clast From Jurassic Conglomerate, Kamiaso, Mino Terrane, Japan: The Case For South China Craton Provenance (Korean Gyeonggi Block?), Allen Phillip Nutman, Y Sano, K Terada, H Hidaka
Faculty of Science - Papers (Archive)
The polymict Kamiaso Conglomerate (Mino Terrane, Japan) contains Jurassic to Palaeoproterozoic clasts—probably derived from Korean basement that lay nearby to the northwest at time of deposition. Clast K2 broke cleanly into two halves during sampling (but the halves were recombined for zircon separation). A third of the K2 zircons are colourless euhedral prisms with oscillatory zoning, with no inheritance and yielded a SHRIMP U/Pb date of 743±17 Ma. Two thirds of K2 zircons are brown oscillatory-zoned corroded prisms with a date of 1860±8 Ma, with inherited cores up to ∼2460 Ma. A likely explanation for this could be that clast …
Characterizing Deformation, Damage Parameters, And Clay Composition In Fault Zones: Insights From The Chelungpu Thrust, Taiwan, And Mozumi Right Lateral Fault, Japan, Angela J. Isaacs
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The Chelungpu thrust fault, Taiwan, and the Mozumi right-lateral fault, Japan, provide an opportunity to characterize active faults in clastic sedimentary rocks and provide constraints to seismologic models. The northern Chelungpu fault has a 10-30 m wide primary damage zone characterized by dense fractures and chemical alteration. The southern Chelungpu fault has a 25-70 m wide primary damage zone characterized by dense fractures, alteration, intensely sheared rock, and secondary faults. The complexity of the damage zone, geochemistry, and clay mineralogy of the southern fault zone reflects its greater maturity (~1 Ma) relative to the northern fault zone (~46-100 Ka). A …
Hydrologic Properties And Structure Of The Mozumi Fault, Central Japan, Craig B. Forster, James P. Evans, Hidemi Tanaka, Ronald Jeffreys, Tsuyoshi Nohara
Hydrologic Properties And Structure Of The Mozumi Fault, Central Japan, Craig B. Forster, James P. Evans, Hidemi Tanaka, Ronald Jeffreys, Tsuyoshi Nohara
Geosciences Faculty Publications
Analyses of rocks from the Active Fault Survey Tunnel (AFST) provides insight into the structure and hydrogeology of the northeast-trending Mozumi-Sukenobu fault, an active strike-slip fault with 125 to 500 m of right-lateral slip in central Japan. Interlayered regions of sub-vertical permeability zones formed by cataclasis and slip on clay-rich foliated zones. Core samples range from 10−19 m2 to almost 10−13 m2. CFC analyses of waters from the fault zone show that water entering the tunnel is 27–36 years old, yielding a bulk fault permeability of 10−14 to 10−15 m2. The …
Protection Of Ecological And Cultural Values Of Watersheds Under The Convention On Biological Diversity And The International Covenant On Civil And Political Rights [Abstract], Morihiro Ichikawa
Allocating and Managing Water for a Sustainable Future: Lessons from Around the World (Summer Conference, June 11-14)
2 pages.
Temporal Variation Of Seismic B-Values Beneath Northeastern Japan Island Arc, Aimin Cao, Stephen S. Gao
Temporal Variation Of Seismic B-Values Beneath Northeastern Japan Island Arc, Aimin Cao, Stephen S. Gao
Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works
Analysis of a high quality seismic catalog reveals that the average of seismic b-values in the crust beneath most part of northeastern Japan island arc decreased from 0.86 between 1984 and 1990, to 0.73 between 1991 and 1995. The two areas with the largest decrease are found to be in the same areas where the coupling between the North American and the Pacific plates is the highest, as suggested by a recent geodetic study. In the same time period, the annual seismic moment release increased by 10 times. In addition, there seems to be a corresponding increase in volcanic activities …
The Effects Of Environmental And Adventure Education Programs On The Wilderness Attitudes Of Japanese Early Adolescents, Taito Okamura
The Effects Of Environmental And Adventure Education Programs On The Wilderness Attitudes Of Japanese Early Adolescents, Taito Okamura
Research in Outdoor Education
The conceptual framework for this study is that outdoor education represents the integration of environmental education and adventure education (Bisson, 1998; Bunting, 1990; Donna, 1996; Priest, 1986). The purpose of the study was first to compare the effects of environmental and adventure education programs in a resident camp setting on the wilderness attitudes of Japanese early adolescents.