• Title/Summary/Keyword: physical geography

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View of Landform revealed in School Songs: Based on the Primary·Secondary School in Daegu Metropolitan City (교가(校歌)에 나타난 대구의 지형관 - 대구 초·중등학교를 사례로 -)

  • JEON, Young-Gweon
    • Journal of The Geomorphological Association of Korea
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    • v.19 no.4
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    • pp.83-96
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    • 2012
  • This paper has obtained the following results by investigating the physical geographical names appeared on the school songs of the primary secondary school in Daegu metropolitan city. 1) The physical geographical names appeared many on the school songs in the old-established schools are the traditional physical geographical names such as The Mt. Palgong, The Geumho river, The Nakdong river, The Mt. Biseul and the physical geographical names related to the identity of Daegu such as Dalgubeol, The Mt. Taebaek, Seorabeol and so forth. 2) The physical geographical names appeared many on the school songs in the primary schools are The Mt. Palgong, The Geumho river, The Nakdong river, and The Mt. Biseul in order, while those appeared many on the school songs in the secondary schools are The Mt. Palgong, The Geumho river, The Nakdong river, and The Mt. Biseul in order. 3) Since The Mt. Taebaek and Seorabeol relatively often appear in the physical geographical names, we can find the relationship between Daegu and Silla Dynasty, and that between The Mt. Palgong and The Mt. Taebaek from the viewpoint of feng shui. 4) In case of the school songs in the schools distributed around the area of Suseong-Gu and DalSeo-Gu which are newly developed, the physical geographical names within the two areas in addition to the traditional physical geographical names(including the physical geographical names related to the identity of Daegu) appeared many on the school songs. 5) The Mt. Palgong, which is the representative physical geographical name of Daegu, almost did not appear on the school songs of the schools within the Dalseong-Gun. In other words, the residents in the Dalseong-Gun have recognized the mountain based on The Mt. Biseul rather than The Mt. Palgong. 6) It is special that The Sincheon amounting to the central stream in Daegu almost did not appear on the school songs. 7) It is concluded that the physical geographical names found in this paper can be not only set as main ecological space in Daegu area but also considered in top priority as ecological space in the various plans of development.

The Physical Region of China Divided by the Characteristics of Drainage Patterns. (하계망패턴의 특색으로 구분한 중국의 자연지역)

  • Hwang, Sang-Ill
    • Journal of the Korean association of regional geographers
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    • v.2 no.1
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    • pp.151-164
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    • 1996
  • The regional division by the characteristics of the drainage patterns is important to understand its physical environment comprehensively, because the drainage network develops in reflecting characteristics of geological, geographical and climatical features in the drainage basin keenly. This study is the attempt to divide physical region in China whose drainage pattern is diverse. Chinese drainage basin is mainly divided into the interior drainage basin and the peripheral drainage basin. The interior drainage basin is divided into (1)the deranged pattern and (2)the centripetal pattern. The peripheral drainage basin is divided into (1)the dendritic pattern, (2)the parallel pattern, (3)the radial pattern and (4)the anastomatic pattern. Drainage patterns of the interior drainage basin are formed by affecting geographical features and climatic conditions mainly. In the peripheral drainage basin, drainage patterns are formed by other factors: the parallel pattern is connected with geological structure lineament by tectonic movement, the radial pattern with changes of the river channel resulted from the Yellow River's overflow, the anastomotic pattern with human's activities. The distributional features of the physical region in China are as follows: The deranged pattern appears in Zangbai Plateau, the centripetal pattern does in arid basin of the northwest China. the parallel pattern does in Hengduan mountains affected strongly by tectonic movement between Yangtze paraplatform and Indian Plate, does in the upper stream of Yangtze River and Ganges River in the south of Qinghai-Xizang Plateau, the radial pattern in Huaihe Haihe River drainage basin appearing in the alluvial fan region of Yellow River's downstream and the anastomotic pattern does in the delta of Yangtze River, in the northern coastal plain of the Jiangsu-Province and in the delta of Zhujiang River. Except these areas in the peripheral drainage basin, the dendritic pattern is usually found in the other areas.

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Restoration of the Stream Runoff by the Physical Deterministic Modeling and Formulation of Water Balance for the Catchment of Byungchun River in Chungcheong Province in Korea (물리 결정 모델링에 의한 충청도 병천천 유역의 하천 유출량 복원과 물 수지 수립)

  • KIM, Man-Kyu
    • Journal of The Geomorphological Association of Korea
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    • v.15 no.2
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    • pp.37-53
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    • 2008
  • This study has developed a water balance model for the catchment of Byungchun river using a BROOK90 4.4e physical deterministic water balance model with the long-term meterological data and stream run off data obtained from the basin of Byungchun river in Korea. It is intended that the validation model with calibrated model fitting parameter can build a long-term water balance plan for a period when meterological data are available but stream runoff data are not. Results of this study have satisfied the first expectation as an experiment for water balance modeling since measured stream runoff data have turned out to be very similar to simulated stream runoff data. Through the confirmation of model fitting parameters and validated simulation, water balance for the period of 1998 to 2006 has been restored. Unless the conditions of geomophology, vegetation, soil and land use change, meterological data alone can produce various hydrometeorological data related to stream runoff amount, soil water amount, and evapotranspiration. This study opens up a new horizon in restoring water balance in the past as well planning water balance in the present. The obtained results from this study are expected to be used in predicting future water balance in the wake of the changes in climate and vegetation in Korea.

Mapping Time-distance Cartogram and the Accessibility Analysis in Korea (시간거리 접근성 카토그램 제작 및 접근성 공간구조 분석)

  • Kim, So-Yeon;Lee, Keum-Sook
    • Journal of the Economic Geographical Society of Korea
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    • v.9 no.2
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    • pp.149-166
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    • 2006
  • The purpose of this study is to produce time-distance cartograms based on the various Korean transportation networks, and to analyze the spatial structure of time-distance accessibilities. For the purpose this study attempts to develop continuous area cartogram by utilizing Wolf's algorithm for creating contiguous cartogram in ArcGIS 9. The absolute physical space was transformed to the functional space indexed by time-distances along various transportation networks in Korea. We examined the differences in the time-distance accessibilities among transportation networks. This study makes a comparison between the spatial structure of time-distance accessibility of KTX network with them of existing railroad network, as well as with them of road network. In order to clarify the spatial structures of time-distance accessibilities, we restructured them on the time-distance circular diagrams and performing Multi-Dimensional Scaling analysis. Overall structure of time-distance accessibilities shows similar patterns: The time distances are shrinked a lot along the Seoul-Busan axis, while coastal parts, in particular the eastern part of the county, are shrinked relatively little via all transportation networks. The Road network affects significantly on the accessibilities of cities in Gangwon-do and Gyeonggi-do, while railway network affects on the accessibilities of cities in Jeolla-do and Gyeongsang-do in general. When we compared the time-distance accessibilities based on the 5 largest cities, Seoul appears as the most accessible city from/to all other cities in Korea. We can also find significant changes in the time-distance accessibility between KTX network and existing railroad network. Cities along the KTX network, in particular cities which has KTX stops, improved significantly in time-distance accessibilities.

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Deriving geological contact geometry from potential field data (포텐셜 필드 자료를 이용한 지짙학적 경계 구조 해석)

  • Ugalde, Hernan;Morris, William A.
    • Geophysics and Geophysical Exploration
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    • v.13 no.1
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    • pp.40-50
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    • 2010
  • The building process of any geological map involves linking sparse lithological outcrop information with equally sparse geometrical measurements, all in a single entity which is the preferred interpretation of the field geologist. The actual veracity of this interpretative map is partially dependent upon the frequency and distribution of geological outcrops compounded by the complexity of the local geology. Geophysics is commonly used as a tool to augment the distribution of data points, however it normally does not have sufficient geometrical constraints due to: a) all geophysical inversion models being inherently non-unique; and b) the lack of knowledge of the physical property contrasts associated with specific lithologies. This contribution proposes the combined use of geophysical edge detection routines and 'three point' solutions from topographic data as a possible approach to obtaining geological contact geometry information (strike and dip), which can be used in the construction of a preliminary geological model. This derived geological information should first be assessed for its compatibility with the scale of the problem, and any directly observed geological data. Once verified it can be used to help constrain the preferred geological map interpretation being developed by the field geologist. The method models the contacts as planar surfaces. Therefore, it must be ensured that this assumption fits the scale and geometry of the problem. Two examples are shown from folded sequences at the Bathurst Mining Camp, New Brunswick, Canada.

Viewing Africa based on 'Factual Contents' and 'Representation' : Centered on Africa Contents in Elementary and Middle School Social Studies Textbooks ('사실'과 '재현'의 관점에서 아프리카 다시 보기 -초.중학교 사회 교과서 아프리카 서술 내용을 중심으로-)

  • Kim, Da-Won;Han, Geon-Soo
    • Journal of the Korean Geographical Society
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    • v.47 no.3
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    • pp.440-458
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    • 2012
  • This study analyzed the ignorance and prejudice with regard to African culture, which can be seen at the textbook and class course centering the geography class from 1990's to the present, and reviewed critically the related education and learning effects for mutual understanding. This study results are as follows: First, in the geographic environment contents, the image regarding huge continent, the local image regarding the various physical environments and the geographical importance as the ancient civilization birthplace were not included in the description. Second, the description regarding the African culture and history was focused to the singular African image, so the fixed concept and distorted image has been rooted into the formation of cultural meta-knowledge. Third, the negative sides rather than positive development and the past backward facts rather than changed status have been emphasized in the description regarding African resources and industry as well, so only the region surrounded with the various problems including poverty and the image as underdeveloped country have been rooted into the description. Now, real Africa view, an image for a variety of attractive and vibrant Africa rather than the same culture and characteristics of African must be learned in text books.

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The Regional Geomorphology of Dokdo(Volcanic Island) (독도의 지형지(地形誌))

  • Jeon, Young-Gweon
    • Journal of the Korean association of regional geographers
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    • v.11 no.1
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    • pp.19-28
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    • 2005
  • Although Dokdo, small and dependent islands of Ulleung County, can be considered critical in terms of both geo-politics and physical geography, it is clear that Korean geographers have been too silent tn study Dokdo. In the author's view, such tendency is partly due to difficulties in access to Dokdo. In this sense this study would be meaningful for inquiring into the regional geomorphology of Dokdo regardless of only three-day field work. The major findings of the study are as follows. Firstly, the geology of Dokdo is composed of 8 rock units. Secondly, in a slope analysis of Dokdo volcano using GIS tool, steep slopes over $26^{\circ}$ account for 79.1% of whole slopes and even free faces, defined as slopes over $40^{\circ}$, account for 65.4%. Thirdly, the main landforms of Dokdo constitute volcanic landform, coastal landform and the others, such as talus, dyke, tafoni and erosional hollow. Fourthly, it turns out that advanced landform classification map of Dokdo can be designed by taking an approach tn regional geomorphology. Finally, based on a detailed review of the latest geological literature, I argue that part of landforms of East Dokdo(dongdo) is closer tn an erosional hollow than a small crater.

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The Characteristics of Farm Household in Suburban Areas Classified by the Farming Types and Changes of Facility Farm Household's Management Size - A Case Study of Munsanli, Taegu - (대도시근교 농촌지역의 농가특성과 시설농가의 경영규모 변화 - 대구광역시 문산리를 사례로 -)

  • Park, Yang-Choon;Woo, Jong-Hyeon
    • Journal of the Korean association of regional geographers
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    • v.7 no.1
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    • pp.21-34
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    • 2001
  • Summarized results of this study that examined the characteristics of farm household in suburban areas classified by the fanning types are as follows. When it was looked into with the side of farm household and his family, the type of the farm household in suburban areas are related to the quality of fanning labor rather than the quantity of it. Regardless of the type of the farm household, it depends upon the family labor (usually men and wives). And the age of farm manager is an important part in the quality of fanning labor. The size of the farm household is related to the individual fanning labor. The size of self-sufficient crops(mainly rice) farm household will be small as the farmer gets to be old. But the size of commercial crops farm household has less tendency to change in terms with the age of farm manager. The fanning commercialism takes an important part in the maintenance and development of suburban agricultural areas. But, in fact, there is a shortage of farming labor. So the physical condition of farmland is the most important part in agricultural durability. After this study, we can conclude that we won't have enough chance to solve the problem of family member separation and shortage of fanning labor even though it is in the suburban area or in the profitable farm until we give them more enough chance to get a job(except fanning) and the better education infrastructure. To make matters worse, the aggravation of farm house-hold's economy due to unstable price of farming products' threatens the agricultural durability. Consequently, in order to get a development of agriculture and rural community, a qualitative change with improvement of agricultural conditions and of products distribution system is needed.

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Accessibility Changes in the Metropolitan Seoul Subway System: Time-distance Algorithms based on the T-card Big Data and an Accessibility Measurement Model for Un-fixed Transportation Networks (수도권 광역철도망 확충에 따른 서울 대도시권 접근도 변화: 교통카드 빅데이터를 이용한 시간거리 산출 알고리즘 및 비고정성 교통망 접근도 산출 모형의 개발과 적용)

  • Lee, Keumsook;Park, Jong Soo;Jeong, Mi Seon
    • Journal of the Economic Geographical Society of Korea
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    • v.17 no.1
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    • pp.98-113
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    • 2014
  • The purpose of this study is to investigate the changes in the accessibility of the Metropolitan Seoul Transit systems since 2000, in which many new subway lines have been constructed as well as other urban transit lines have been connected to the systems. We suggest an accessibility measure model for Un-fixed Transportation Networks. In order to measure the nodal accessibility based on the mobility, we apply path-distance, physical-distance, and time-distance as the distance impedance measurement. Specifically, we develop time-distance algorithms to measure the time-distance between each pairs of transit stations based on the T-card transaction databases. We apply the model to the Metropolitan Seoul Transit systems in two time points(2005 and 2011). We examine the results in terms of three distance accessibility measures. Time-distance accessibility explains better the urban land use patterns in the Metropolitan Seoul area than the other two. We visualize the spatial patterns of time-distance accessibility by applying GIS, and analyze the spatial structures of accessibility in the Metrropolitan Seoul area between two time points.

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Spatial Concentration and Locational Characteristics of the Shipbuilding Industry in the South-East Region of Korea (우리나라 조선산업의 공간 집중과 입지 특성 : 동남권을 중심으로)

  • Lee, Jong-Ho;Ryu, Tae-Youn
    • Journal of the Korean association of regional geographers
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    • v.14 no.5
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    • pp.521-535
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    • 2008
  • This paper aims to explore the spatial distribution and locational characteristics of the shipbuilding industry in the south-east region of Korea. The geography of the Korea's shipbuilding industry illustrates an absolute spatial concentration into the south-east region, including Gyeongnam, Busan and Ulsan. In view of the type of agglomeration, it is argued that the south-east region's shipbuilding industry has been evolved as an Advanced Hub & Spoke cluster, which is characterized by interconnected relationships between a couple of gigantic customer firms and the majority of small and medium-sized supplier firms. A survey on the locational factors of the firms presents that traditional locational factors, such as physical infrastructure, land, labour and industrial linkages, are more important than new economic geographical locational factors, such as knowledge, learning, innovation and networks. According to firm's evaluation of the Gyeongnam region's locational environments for the shipbuilding industry is, however, rather different to the result of firm's location decision factors. The shipbuilding firms in Gyeongnam see that the Gyeongnam region retains regional advantages in terms of agglomeration economies, geographical proximity to customers, the infrastructure of transportation and communication and the quality of life. On the contrary, firms recognize that the Gyeongnam region suffers from the lack of R&D and production workforce and a weak basis of industry-university -government networks.

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