• Title/Summary/Keyword: 지점운동

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Defining Homogeneous Weather Forecasting Regions in Southern Parts of Korea (남부지방의 일기예보구역 설정에 관한 연구)

  • Kim, Il-Kon;Park, Hyun-Wook
    • Journal of the Korean Geographical Society
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    • v.31 no.3
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    • pp.469-488
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    • 1996
  • The defining of weather forecasting regions is possible. since the representativeness of regional weather can by reasonably clarified in terms of weather entropy and the use of information ratio. In this paper, the weather entropy and information ratio were derived numerially from using the information theory. The typical weather characteristics were clarified and defined in the homogeneous weather forecasting regions of the southern parts of Korea. The data used for this study are the daily precipitation and cloudiness during the recent five years (1990-1994) at 42 stations in southern parts of Korea. It is divided into four classes of fine, clear, cloudy and rainy. The results are summarized as follows: 1. The maximum value of weather entropy in study area is 2.009 vits in Yosu in July, and the minimum one is 1.624 bits in Kohung in October. The mean value of weather entropy is maximal in July, on the other hand, minimal in October during four season. The less the value of entropy is, the stabler the weather is. While the bigger the value of entropy is, the more changeable the weather is. 2. The deviation from mean value of weather entropy in southern parts of Korea, with the positive and the negative parts, shows remarkably the distributional tendency of the east (positive) and the west (negative) in January but of the south (positive) and the north (negative) in July. It also clearly shows the distributional tendency of the east (postive) and the west(negative) in the coastal region in April, and of X-type (southern west and northern east: negative) in Chiri Mt. in October. 3. In southern parts, the average information ratio maximaly appear 0.618 in Taegu area in July, whereas minimally 0.550 in Kwangju in October. Particularly the average information ratio of Pusan area is the greatest in April, but the smallest in October. And in Taegu, Kwangju, and Kunsan, it is the greatest in April, January, and July, but the smallest in Jyly, July, and pril. 4.The narrowest appreance of weather representativeness is in July when the Kwangju is the center of the weather forecasting. But the broadest one is in April when Taegu is the center of weather forecasting. 5. The defining of weather forecasting regions in terms of the difference of information ratio most broadly shows up in July in Pusan including the whole Honam area and the southern parts of Youngnam when the Pusan-Taegu is the basis of the application of information ratio. Meanwhile, it appears most broadly in January in Taegu including the whole southern parts except southern coastal area.

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A Case Study of Geometrical Fracture Model for Groundwater Well Placement, Eastern Munsan, Gyeonggido, Korea (지하수개발을 위한 단열모델 연구사례(경기도 문산 동쪽지역))

  • Choi Sung-Ja;Chwae Uee-Chan;Kim Se-Kon;Park Jun-Beom;Sung Ki-Sung;Sung Ik-Whan
    • Economic and Environmental Geology
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    • v.39 no.2 s.177
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    • pp.163-171
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    • 2006
  • This study is the case of groundwater development based on the geometrical fracture model of target area established only through geological fracture mapping technique. A fracture mapping of $9km^2$, eastern Munsan, has been conducted to determine geological and hydrological factors for new water well placement in the Gyeonggi gneiss complex. Geophysical exploration was not applicable because of small restricted area and dense underground utilities at the site. Form line mapping on the basis of foliation orientation and rock type revealed a synform of NS fold axis bearing to the south. An EW geological cross-section passed through the site area shows a F2 synform as a double-wall ice cream spoon shape. Three regional faults of $N20^{\circ}E,\;N30^{\circ}W$, and NS have been dragged into the site to help understand extensional fault paths. The $N20^{\circ}E$ fault with dextral sense is geometrically interpreted as a western fault of two flexural conjugate type-P shear faults in the F2 synformal fold. The NE cross-section reveals that a possible groundwater belt in the western limb of super-posed fold area is formed as a trigonal prism within 100 m depth of the intersectional space between the $N20^{\circ}E$ fault plane and the weakly sheared plane of transposed foliation. Another possible fault for water resource strikes $N40^{\circ}E$. Recommended sites for new water well placement are along the $N20^{\circ}E\;and\;N40^{\circ}E$ faults. As a result of fracture mapping, 145 ton/day of water can be produced at one well along the $N20^{\circ}E$ fault line. Exploration of groundwater in the area is succeeded only using with geological fracture mapping and interpretation of geological cross-section, without any geophysical survey. Intersection of fault generated with the F2 synformal fold and foliation supply space of groundwater reserver.

Identification of Conductive Fractures in Crystalline Recks (유동성 단열 파악을 위한 암반 내 단열특성 규명)

  • 채병곤;최영섭;이대하;김원영;이승구;김중렬
    • Journal of the Korean Society of Groundwater Environment
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    • v.5 no.2
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    • pp.88-100
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    • 1998
  • Since fractures may serve as major conduits of groundwater flow in crystalline rocks, characterization of conductive fractures is especially important for interpretation of flow system. In this study, characterization of fractures to investigate hydraulically conductive fractures in gneisses at an abandoned mine area was performed. The orientation, width, length, movement sense, infilling materials, spacing, aperture, roughness of both joints and faults and intersection and connectivity to other joints were measured on outcrops. In addition, characteristics of subsurface fractures were examined by core logging in five boreholes, of which the orientations were acquired by acoustic televiewer logging from three boreholes. The dominant fracture sets were grouped from outcrops; GSet 1: N50-82$^{\circ}$E/55-90$^{\circ}$SE, GSet 2: N2-8$^{\circ}$E/56-86$^{\circ}$SE, GSet 3: N46-72$^{\circ}$W/60-85$^{\circ}$NE, GSet 4:Nl2-38$^{\circ}$W/15-40$^{\circ}$SW and from subsurface; HSet 1: N50-90$^{\circ}$E/55-90$^{\circ}$SE, HSet 2: N10-30$^{\circ}$E/50-70$^{\circ}$SE, HSet 3: N20-60$^{\circ}$W/50-80$^{\circ}$NE, HSet 4: N10-50$^{\circ}$E/$\leq$40$^{\circ}$NW. Among them, GSet 1, GSet 3 and HSet 1, HSet 3 are the most intensely developed fracture sets in the study area. The mean fracture spacings of HSet 1 are 30-47cm and code 1 fractures, such as faults and open fractures, comprise 21.0-42.9 percent of the whole fractures in each borehole. HSet 3 shows the mean fracture spacings of 55-57cm and the ratio of code 1 fractures is 15.4-26.9 percent. In spite of the mean fracture spacing of 239cm, code 1 fractures of HSet 4 have the highest ratio of 54.5 percent. From the fact that faults or open fractures have high hydraulic conductivity, it can be inferred that the three fracture sets of N55-85$^{\circ}$E/50-80$^{\circ}$SE, N20-60$^{\circ}$W/50-75$^{\circ}$NE and N10-30$^{\circ}$E/$\leq$30$^{\circ}$NW from a fracture system of relatively high conductivity. It is indirectly verified with geophysical loggings and constant injection tests performed in the boreholes.

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A Study on the Major Attraction and Space Recognition in Anuisamdong(安義三洞), through the People of the 16th to 19th centuries (16~19세기 인물을 통해 본 안의삼동(安義三洞)의 주요 유람처와 공간인식)

  • Kim, Dong-Hyun;Shin, Hyun-Sil;Lee, Won-Ho
    • Journal of the Korean Institute of Traditional Landscape Architecture
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    • v.37 no.3
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    • pp.49-61
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    • 2019
  • This study aims to examine the spatial recognition of the characters who visited Anuisamdong(安義三洞) in the past and left it in the literature. Thus, the school's relationship between people identified in the relevant literature was analyzed and the elements of landscape were extracted. The results were as follows; First, The figures who authored the literature on Anuisamdong were related to scholars living in Anuihyun(安義縣), along with the Yeongnam confucian genealogy. Starting with Jung, Yeo-Chang(鄭汝昌) in the 15th century, a relationship centered on Nammyeong School(南溟學派) in the 16th century was formed. At that time, people had toured the Anuisamdong regardless of the academic background. In the 17th century, Nammyeong School were in conflict with Toegye School(退溪學派), so Toegye School's influence had no record. In the 18th century, the proportion of Nammyeong School, Toegye School, and Kiho School(畿湖學派) appeared similar as they evolved into the Yeongnam School(嶺南學派). After the 19th century, the proportion of patriots who participated in the anti-Japanese movement was higher than that of schools. Second, The main places used in the literature related to Anuisamdongwere the order of Wonhakdong(猿鶴洞), Hwrimdong(花林洞) and Simjindong(尋眞洞). There are a total of 21 major elements used for the related literature, of which Suseungdae Rock(搜勝臺), Morijae House(某里齋), Nongwaljeong Pavilion(弄月亭), Sasundae Rock(四仙臺) and Cheoksuam Rock(滌愁巖) were the main subjects. Elements of Wonhakdong have been in the spotlight since the 16th century, focusing on Suseungdae Rock. Although the elements of Hwarimdong have been increasing gradually since the 18th century, the ratio of Simjindong to Wonhakdong and Hwarimdong was relatively small. Third, The relationship between the figures who visited the Anuisamdong and the spatial recognition of the Anuisamdong was divided into landscape awareness, emotional awareness and symbolic recognition. The Anuisamdong's scenic view is mostly identified by its description of the waterscape and topographical landscape, which people may have perceived as a scenic site centered on the valley view at the time. The mutual influence of Nammyeong School and Toegye School in the 16th and 17th centuries led to a scene in which the major figures of each school recognized pleasure as a culture of training, and a feeling of longing for the traces of past ancestors as the 18th century travel culture and the 19th century chaotic situation. In addition, the symbolic expression that usually appears is likely to have been recognized as a unworldly place, as the location of the immortal world is confirmed.

Linguistic, Cultural, and Historical Momentums through History of Korean Literature -Focused on the Recognition and Descriptive Aspects of Korean Modern Literature in the History of Korean Literature Written in Japan- (한국문학사를 가로지르는 언어·문화·역사의 계기들 - 일본 저술 한국문학사의 한국근현대문학 인식과 서술양상을 중심으로 -)

  • Yoon, Song-ah
    • Cross-Cultural Studies
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    • v.48
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    • pp.31-66
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    • 2017
  • This study examines ways of recognizing and aspects of describing Korean modern literature revealed by each literary history from the viewpoint of 'transculturation', focusing on Lim Jeon-Hye's "History of Korean Literature in Japan until 1945", Shirakawa Yutaka's "Footsteps of Korean Modern Literature", and Saegusa Toshikatsu's "Taste of Korean Literature" from the history of Korean literature written in Japan. First, Lim Jeon-Hye periodically examines Korean literature written in Japan, focusing on literary activities of Korean students in Japan and the proletarian literature movement, and addresses points of active cultural negotiation, mutual understanding and political solidarity between Korea and Japan. Shirakawa Yutaka focuses on the concurrency and connection of Korea, China, and Japan in the process of modern literary formation, covering Japanese language literature and pro-Japanese literature with great care, and describes the middle-layer position as a mediating researcher in the conflicting boundaries between Korea and Japan. Saegusa Toshikatsu provides interesting transcultural momentum in exploring internal logic and denotation of Korean literature via comparative literature review encompassing East Asia, implementation of literary forms and themes connecting tradition and modernity, and an out-of-boundary point of view to overlook 'pro-Japanese literature', etc. Transcultural aspects in this literary history to examine are as follow. First, the history of Korean modern literature based on 'national literature history' is catabolized in the magnetic field of the 'colonial experience' and 'national nationalism' and considered in multifaceted context. Second, they provide the possibility of three-dimensional and micro-narrative description of literature that complement the narrative aspect of existing Korean literature history. Third, they provide an opportunity to expand and open the description of literature history through acceptance of comparative literary perspectives encompassing East Asia. Fourth, through discovery of Korean-Japanese literature and Japanese language literature, they contribute to broadening the history of Korean modern literature and enriching foundations.