• Proceedings of the Korea Water Resources Association Conference
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• 2004.05b
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• pp.1276-1279
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• 2004

수문순환 과정에서 증발산은 물이 유역으로부터 제거되는 주요 기작으로서, 증발산에 중요한 역할을 하는 식물은 지구 육지 표면의 약 $70\%$ 정도를 점유하고 있으며, 생태계의 가장 중요한 구성인자로서, 식물의 종류 및 군집의 공간적 분포유형, 생육주기 및 형태적 변화 등과 같은 정보들은 그 지역의 기후, 토양, 지질, 지리적 특성을 밝히는데 중요한 역할을 한다. 식생관련 정보 중 엽면적 지수란 단위지표면적당 총 엽면적의 비를 나타내는 것으로 환경생태, 기상, 수문분야에서 다양하게 활용되고 있다. 본 연구에서는 Landsat 위성영상과 DEM 등의 GIS 자료를 이용하여 지형적인 요소를 고려하여 유역의 증발산량을 분포형으론 산정하는 것을 목적으로 하고 있다. 연구대상유역은 한강의 제1지류인 경안천유역으로 하였고, 증발산량 산정에 필요한 기상자료는 월평균기온, 수평면일사량, 상대습도를 이용하였고, 일사량비와 일조시간비 계산을 위해 위도별에 따른 총일조시간과 월평균일사량을 계산하였다. 잠재증발산량 산정은 Penman-Monteith식을 이용하여 산정하였으며, 식생지수와 밀접한 관계가 있는 LAI를 고려하여 산정하였다.

• 한국IT서비스학회:학술대회논문집
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• 2003.05a
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• pp.95-101
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• 2003

GIS의 국가적 틀을 이루는 공급주체에는 중앙정부 이외에도 지방자치정부가 있다. 현실적으로 지방자치정부는 행정 일선에 위치하고 있으며 각 지역의 특수성을 고려하여 지역 주민들의 수요를 충족시키고 행정서비스의 질을 향상시키기 위하여 GIS를 도입할 수 있는 대표적인 기관들이다. 학계의 전문가들은 공공 부문 업무의 80%가 지리적 연관성을 갖는 것으로 보고 있기 때문에 향후 GIS가 정부의 서비스 제공과 관리자들의 의사결정에 필수적인 요소로 자리잡을 것으로 예측된다. 본 연구의 목적은 국내 기초지방자치정부가 정부의 행정효율을 향상시키기 위하여 그리고 국민을 위한 서비스의 질을 높이기 위하여 GIS를 얼마나 도입하여 활용하고 있는지를 알아보고자 했다. 또한 이러한 조사분석을 통하여 얻은 결과들을 정리하여 국가적으로 GIS의 활용을 촉진할 수 있는 방안들을 담고자 하였다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2013.06a
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• pp.182-184
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• 2013

가속되는 지구온난화로 인해 인류는 과거엔 경험해 보지 못한 북극항로 개척이라는 새로운 상황에 직면하게 되었다. 북극항로가 새로운 물류이동 루트로 떠오르면 지리적 이점으로 인해 우리나라는 큰 이득을 얻을 수 있으며 그 중심에 부산항이 있다. 글로벌 물류중심 국가로의 도약을 이루기 위해 북극해 관련 국가 전담조직 신설, 국가종합계획 및 전략 수립, 해양 플랜트 R&D 센터 건립, 관련 전문가 육성, 북극해 연안항로 개발, 해운서비스 비즈니스 모델 개발, 북극관련 해양관광 기반을 마련해야 한다. 또한, 국가간 군사협력기구 또는 협력체제를 구성, 통항 선박 보호 및 구조 문제의 해결이 요구된다. 이를 위해 다목적 함, 통항 위협요소를 실시간으로 파악하기 위한 극지 작전가능형 초계기 등의 전력과 운용 인력을 육성해야 한다.

• Journal of Technology Innovation
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• v.19 no.2
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• pp.153-184
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• 2011

This paper investigates what kind of technological partner firms want to cooperate with in terms of partner location. Two geographical factors are considered. One is geographical proximity, given the tradeoff between the effectiveness of knowledge spillovers in proximity and diverse knowledge absorption from geographically distant partners. The other is how many other firms are co-located with potential partners because it is known that clustering regions can create more technological outputs. Analysis on 2008 Korea Innovation Survey data finds that partner proximity is the single most important factor in choosing a cooperation partner. While firms that are located in a region crowded with related industries prefer proximate partners, others that are surrounded by unrelated industries are more likely to cooperate with distant partners. The findings suggest that geographical proximity matters in partner selection because it not only stimulates knowledge spillovers but also reduces costs involving R&D cooperation such as monitoring costs and information costs. Moreover, firms take into consideration both the benefits and risks of clustering regions. If there are so many unrelated firms that they create agglomeration diseconomies such as congestion costs and unintentional knowledge leakages, firms are more likely to try to find their cooperation partners in other regions.

• Journal of the Economic Geographical Society of Korea
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• v.24 no.1
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• pp.29-51
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• 2021

The present research explores the tendency of the items that require Place Location Knowledge (PLK) of the Korean Geography subject in the College Scholastic Ability Test. The major findings are as follows. First, the geographical regions of the items are spatially skewed, especially in the Yeongnam regions, which are tested more frequently compared to the others. Second, the fact-based items more concern with regionality such as geographic indication system and regional festivals. Third, the concept-based items can be divided into physical geography and human geography and there were four items related to economic geography. Fourth, students tend to find it challenging in the items asking PLK. The difficulty varies according to the type of items. The students find concept-based items which require high-order thinking more challenging. There is also differences identified between contents. For example, the section of physical geography, especially climatology-related, were considered the most challenging followed by those of economic geography. Finally, the differences in the rate of correct answer are associated with the scale of the regions covered in the items and students experienced more difficulty in the items asking more precise scale.

• 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.

• Journal of health informatics and statistics
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• v.42 no.4
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• pp.309-316
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• 2017

Objectives: Radon and its progeny pose environmental risks as a carcinogen, especially to the lungs. Investigating factors affecting indoor radon concentrations and models thereof are needed to prevent exposure to radon and to reduce indoor radon concentrations. The purpose of this study was to identify factors affecting indoor radon concentration and to construct a comprehensive model thereof. Methods: Questionnaires were administered to obtain data on residential environments, including building materials and life style. Decision tree and structural equation modeling were applied to predict residences at risk for higher radon concentrations and to develop the comprehensive model. Results: Greenery ratio, impermeable layer ratio, residence at ground level, daily ventilation, long-term heating, crack around the measuring device, and bedroom were significantly shown to be predictive factors of higher indoor radon concentrations. Daily ventilation reduced the probability of homes having indoor radon concentrations ${\geq}200Bq/m^3$ by 11.6%. Meanwhile, a greenery ratio ${\geq}65%$ without daily ventilation increased this probability by 15.3% compared to daily ventilation. The constructed model indicated greenery ratio and ventilation rate directly affecting indoor radon concentrations. Conclusions: Our model highlights the combined influences of geographical properties, groundwater, and lifestyle factors of an individual resident on indoor radon concentrations in Korea.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.21 no.1
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• pp.53-60
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• 2003

Generally, feature of real world as 2-dimensional information of point, line and polygon achieve a GIS function from 2-dimensional GIS. But at enduring the geography elements which exist when it is composed of 3-dimensional spatial information it is abstracted with 2-dimensional which will reach, the loss of many information and 2-dimensional GIS of existing the basic limit exists md, Accordingly, 3-dimensional geography elements of the real world even at the computer controlling with 3-dimensional geography element original it will be able to minimize the loss of information which it keeps, for 3-dimensional expression and the analysis against the natural facility and the artificial facility of the real world it is the actual condition whose 3-dimensional GIS of ultimate form are necessary. This study was 2-dimensional feature a point the line and polygon and 3-dimensional spatial data information as the method for to use the VRML(Virtual Reality Modeling Language), 3-dimensional virtual worlds for 3-dimensional GIS applications to create and hereafter various decision making of at connection web more efficient and the possibility of doing in vision in order to be, it drew up a spatial database.

• Journal of the Korean Geographical Society
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• v.37 no.2
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• pp.161-176
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• 2002

The Landscape of the Bibo Geomancy is generally showed in Korean traditional settlement. The tradition of the Bibo Geomancy was given much weight in the Korean geographic history of life, so it could be a important research theme. The discussion in my dissertation, 1 insist on that, a comment of the Bibo together with a comment of the selection of proper sites composed as axis in Korean geomancy. As a grounds basis of an argument, 1 described on the concept and the composition of the Bibo Geomancy, the backgrounds of the theory, the historical changes of the Bibo Geomancy in Korea, the form and the function of the Bibo and the comparison with the Bibo-Geomancy of the north-east Asia.

• Journal of the Korean association of regional geographers
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• v.12 no.2
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• pp.215-228
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• 2006

Because of the technological innovation of information-communication, the liberalization of world trade and the intensification of regionalisation, the world economic space is in progress of globalization that is not only a product but also a capital, technology and labour move freely over the countries. In the globalized economic space, the multinational finns accelerate a globalization of capital and labour by exporting the capital to the peripherals countries for the low cost of production and importing the low wage labour from the peripherals countries. East Asia which appeared one of the world triad economic axis with a rapid regional economic growth after 1980's intensifies the regionalisation of capital and labour. As the increase of gap in cost of production and income level among the countries, not only the direction of flows of capital and labour but also the traits of migrant labour also changes remarkably.