• Title/Summary/Keyword: physical geography

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Exploratory Study of the Applicability of Kompsat 3/3A Satellite Pan-sharpened Imagery Using Semantic Segmentation Model (아리랑 3/3A호 위성 융합영상의 Semantic Segmentation을 통한 활용 가능성 탐색 연구)

  • Chae, Hanseong;Rhim, Heesoo;Lee, Jaegwan;Choi, Jinmu
    • Korean Journal of Remote Sensing
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    • v.38 no.6_4
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    • pp.1889-1900
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    • 2022
  • Roads are an essential factor in the physical functioning of modern society. The spatial information of the road has much longer update cycle than the traffic situation information, and it is necessary to generate the information faster and more accurately than now. In this study, as a way to achieve that goal, the Pan-sharpening technique was applied to satellite images of Kompsat 3 and 3A to improve spatial resolution. Then, the data were used for road extraction using the semantic segmentation technique, which has been actively researched recently. The acquired Kompsat 3/3A pan-sharpened images were trained by putting it into a U-Net based segmentation model along with Massachusetts road data, and the applicability of the images were evaluated. As a result of training and verification, it was found that the model prediction performance was maintained as long as certain conditions were maintained for the input image. Therefore, it is expected that the possibility of utilizing satellite images such as Kompsat satellite will be even higher if rich training data are constructed by applying a method that minimizes the impact of surrounding environmental conditions affecting models such as shadows and surface conditions.

Feasibility of Scenic Site Protection Area on the Basis of the Concepts of Authenticity and Integrity (진정성과 완결성에 기초한 명승 보호구역의 타당성 검토)

  • Yi, Young-bae;Ryu, Je-hun
    • Korean Journal of Heritage: History & Science
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    • v.46 no.3
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    • pp.32-47
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    • 2013
  • The concepts of authenticity and integrity are very important standards to be satisfied in the conservation and utilization of Scenic Site (名勝), literally meaning the places of scenic beauty, as a public heritage. These concepts, which are frequently used in the conservation and utilization of the World Heritage inscribed by UNESCO, can be applied to all kinds of heritages. Recently, it has been widely recognized that the concepts of authenticity and integrity are not separable but interconnected. Accordingly, the maintenance of authenticity in Scenic Site should include not only the physical preservation but also the succession of historical tradition of enjoyment. The integrity in Scenic Site refers to the physical and social conditions under which authenticity can be satisfactorily protected. The aim of this study is to reconstruct the traditional ways of enjoying historical and cultural Scenic Site with emphasis on the Yeongnam Region and make a critical examination of cultural property protection areas that have been designated. Then, this study aims to find the ways to utilize Scenic Site to secure the standards of authenticity and integrity. As a result it was discovered that cultural property protection areas are not designated well enough to satisfy the standards of authenticity and integrity. Considering the fact that cultural property protection areas are the minimal institutional systems to maintain the original value of Scenic Site, it is necessary to pay more careful attention to the ways of securing the authenticity and integrity in Scenic Site.

Regional Structure of International Physical Distribution through Clearance Depot (통관거점을 이용한 국제물류의 지역구조)

  • Han Ju-Seong
    • Journal of the Korean Geographical Society
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    • v.40 no.6 s.111
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    • pp.631-652
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    • 2005
  • This study is to clarify regional structure and connection of international physical distribution through clearance depot of Cheongju customs of inland location. The trade of clearance depot of Cheongju customs industrial characteristics reflects of territorial hinterland. As origins and destinations of freight as exports and imports region, territories of Cheongju customs trade mainly with Japan, China, and USA. Origin and destination of freight of Cheongju customs territory are hinterland and foreland of Incheon International Airport and Busan port. In case of export, foreland of Busan port is board, and in case of import, the hinterlands of Incheon International Airport and Busan port are similar. Clearance depot of inland-located Cheongju is construct by the advantages of rapidness and inexpensive cost. And the kind of freight and system of physical distribution of each enterprise show different characteristics. For each export and import freight, each shipper corporation has its own physical distribution system, and structure of international distribution is classified into export pattern of bonded industry and bonded warehouse. Again the patterns of bonded warehouse are distinguished free on board price system with division of labor in base of production in overseas, free on board price system, and cost-insurance-freight with division of labor in base of production in overseas. These Phenomena are caused by transaction between headquarter and its overseas corporation, initiative freight handling of export corporation, choice of inexpensive cost, and international convention.

Spatial Distribution Patterns of International Physical Distribution through Clearance Depot (통관거점을 이용한 국제물류의 공간적 분포 패턴)

  • Han, Ju-Seong
    • Journal of the Economic Geographical Society of Korea
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    • v.9 no.2
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    • pp.225-242
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    • 2006
  • This study aims to analyze the spatial distribution pattern of international trade. The method is to analyze the principal components by changing interaction attribute matrix of four dimensions (hinterland, gateway, foreland and commodities) into two dimension matrix. The study area is the territory region of Cheongju clearance depot in inland. The result are as follows : Major spatial patterns of regional connections by hinterland, gateway and foreland are, in the case of exports, ten patterns and in the case of imports come to nine. Composition of major export and import commodities in Cheongju clearance depot are similar, but precision instrument manufactured commodity and nonmetal mineral are remarkable in export and mineral manufactured commodity machinery and electronic manufactured commodity are remarkable in import. Gateway are similar to export and import, but Incheon international airport is used more in the case of import. And Cheongiu international airport is used for some commodities and is remarkable as a foreland of import for the areas outside of Chungcheongbuk-do.

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Soil Compaction of Hiking Trails Induced by Human Trampling in Mt. Halla and Darangshiorum (한라산과 다랑쉬오름 등산로의 답압에 의한 토양 압밀현상)

  • Kim, Tae-Ho
    • Journal of the Korean association of regional geographers
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    • v.9 no.2
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    • pp.169-179
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    • 2003
  • The hardness and physical properties of soils were measured in hiking trails of Mt. Halla and Darangshiorum in Jeju Island to examine the characteristics and formative factors of an aquiclude induced by human trampling. The soil hardness, being generally the highest on trails, decreases outward and shows the lowest on adjacent slopes in a natural condition. The bulk density and solid phase also demonstrates a similar tendency, then implying that the aquiclude occurs in the central part of trails. Although the formation of a hard layer in trails is fundamentally attributed to human trampling, the environmental factors such as landform, lithology, soil and vegetation play a role in the occurrence of the aquiclude. Soil compaction varies with the gradient and location of trails which affects a transport and deposition of soil particles to produce a hard layer. Soil compaction also depends on the physical properties of soils including the soil texture largely affected by lithology. Vegetation is not directly related with the formation of a hard layer, but affects its dimensions through an enlargement rate of bare trails depending on the response and resistance of plants to human trampling.

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The Promotion and Content Composition of Geotravel as a New Way of Tourism (새로운 관광수단으로서 지리여행의 콘텐츠 구성과 활용 방안)

  • Park, Jongkwan
    • Journal of the Korean Geographical Society
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    • v.50 no.1
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    • pp.53-71
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    • 2015
  • Geographical travel(Geotravel) is new theme tourism based on geographical fieldwork. Geotravel is an emotional journey to explore physical and human landscapes, and is also a comprehensive environmental one beyond the scope of historical tourism. Geotravel provides an optimized regional content and programs for experiential tourism of the family. Taking advantage of geographical characteristics as spatial tourism, the geotravel methodology in catchment unit is strongly recommended. The geotravel content has to be developed in convergence standpoint. The integrated key words of geotravel are human and water. Geotravel is a pattern of specialized edutainment tourism for the public and elementary, secondary school students as well. The development of geographical travel courses is necessary for the popularization of geotravel. Mobile apps will be the medium that delivers easy geographical travel information. And geotravel curator has to be raised quickly for the generalized easy and interesting geotravel.

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Physical Geographical Background of Geotourism Resources in Gumho River Basin (금호분지 내 지리관광자원의 자연지리학적 배경)

  • Son, Myoung-Won
    • Journal of the Korean association of regional geographers
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    • v.12 no.2
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    • pp.202-214
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    • 2006
  • In this paper Gumho drainage basin is divided into six geomorphic units (Bohyeon, Palgong, Biseul mountainous areas and Yeongcheon, Gyeongsan, Daegu basin), and physical geographical background and distributional characteristics of geotourism resources in each geomorphic unit are examined. Most(32 sites, 78%) of geotourism resources in Gumho basin reflect geomorphological environment, rest(7 sites, 17%) of them reflect geological environment. There are three geomorphological resources in Bohyeon mountainous areas, eight geomorphological resources in Palgong mountainous areas, and five geomorphological resources and one cultural resource in Biseul mountainous areas. There are two geomorphological resources, one geological resource, one biological resource, and two cultural resources in Yeongcheon basin. Among them one biological resource and and one cultural resource reflect local geomorphological environment. In Gyeongsan basin are there one geomorphological resource, three geological resources, and one biological resource, but one biological resource reflects local geomorphological environment. There are eight geomorphological resources, two geological resources, and three biological resources in Daegu basin. But two biological resources among them reflect local geomorphological environment.

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Morphological Theory and Design in Modern and Contemporary Architecture -Focused on the Romantic Educational Thoughts as a Dualistic Monism- (근현대건축의 모폴로지 이론과 건축설계)

  • Kim, Sung-Hong
    • Journal of architectural history
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    • v.13 no.4 s.40
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    • pp.89-105
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    • 2004
  • This paper investigates morphological theory as an intellectual framework for research and design. The first part of the paper will review morphological studies in the fields of urban geography, urban planning and architecture, particularly in England from the 1940s to the 1980s. While urban geographers and planners were concerned primarily with town plans, building forms and land use, architectural theoreticians were more interested in the topological relationship between urban and architectural space. The underlying premises and principles of these two approaches will be reviewed. The second part of the paper will focus on typology in Europe and North America. The reinterpretation of typology by Italian architects helped to bridge the gap between individual elements of architecture and the overall form of the city. However, typological theory became less accessible in post-war England and the United States. After 1980, the debate on typology became muted by the onset of vague notions such as functionalism, bio-technical determinism, and contextualism. This paper will propose a redefinition of morphology as a heuristic device, in contrast with the dichotomic view of urban morphology and architectural typology. Morphology will be shown to combine the geometrical and topological; the intentional and accidental; the real and abstract; and a priori and a posteriori. The last part of the paper discusses the lack of comparative theories and methods surrounding the physical form of architecture and the city by Korea commentators. Empirically rooted facility planning, non-comparative historical studies, and iconographic criticism emerged as a central preoccupation of architectural culture between the 1960s and 1980s, a time when international debate on architecture and urbanism was most intense. This paper will give consideration to the built environment as a dynamic physical entity and space as an epiphenomenon of daily urban life, such that collaboration between urban designers, architects, and landscape architects is seen as both beneficial and necessary.

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High-impact chronic pain: evaluation of risk factors and predictors

  • Ilteris Ahmet Senturk;Erman Senturk;Isil Ustun;Akin Gokcedag;Nilgun Pulur Yildirim;Nilufer Kale Icen
    • The Korean Journal of Pain
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    • v.36 no.1
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    • pp.84-97
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    • 2023
  • Background: The concept of high-impact chronic pain (HICP) has been proposed for patients with chronic pain who have significant limitations in work, social life, and personal care. Recognition of HICP and being able to distinguish patients with HICP from other chronic pain patients who do not have life interference allows the necessary measures to be taken in order to restore the physical and emotional functioning of the affected persons. The aim was to reveal the risk factors and predictors associated with HICP. Methods: Patients with chronic pain without life interference (grade 1 and 2) and patients with HICP were compared. Significant data were evaluated with regression analysis to reveal the associated risk factors. Receiving operating characteristic (ROC) analysis was used to evaluate predictors and present cutoff scores. Results: One thousand and six patients completed the study. From pain related cognitive processes, fear of pain (odds ratio [OR], 0.92; 95% confidence interval [CI], 0.87-0.98; P = 0.007) and helplessness (OR, 1.06; 95% CI, 1.01-1.12; P = 0.018) were found to be risk factors associated with HICP. Predictors of HICP were evaluated by ROC analysis. The highest discrimination value was found for pain intensity (cut-off score > 6.5; 83.8% sensitive; 68.7% specific; area under the curve = 0.823; P < 0.001). Conclusions: This is the first study in our geography to evaluate HICP with measurement tools that evaluate all dimensions of pain. Moreover, it is the first study in the literature to evaluate predictors and cut-off scores using ROC analysis for HICP.

Place-myth of The Scenic Beauty from Mt. Kumgang : The social nature and the travel geography of noted mountains ('금강산'에서 전승되는 아름다움의 장소신화 : 사회적 자연과 명산의 여행지리)

  • Shin, Sung Hee
    • Journal of the Korean association of regional geographers
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    • v.22 no.1
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    • pp.151-167
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    • 2016
  • Conventional social science typically regards the idea of a 'mountain' as part of 'nature' and a physical environment existing separately from, or prior to, human society and culture. However, in Korea, which is 70% mountainous land, the 'mountain' is part of a unique 'social nature'. This research develops the idea that in this context the mountain is a social nature and a cultural landscape which are tied heavily to the idea of travel. The article interrogates why the scenic beauties of Mt. Kumgang have been perceived and conveyed through multiple generations since the Chosun Dynasty period. Focusing on Mt. Kumgang, this article illustrates how strongly people have held dreams of mountain travel, for the whole life-time. Travel writings(or accounts of trips to the mountain) and artwork have played a particularly important role in creating Mt. Kumgang's reputation as the most beautiful mountain in the country. At the same time, the access to the mountain was often a dangerous adventure, with many travelers facing hunger and extreme physical challenges. As portrayed in writings and artwork, the overall effect of these dynamics was the creation of a socionatural place of striking beauty that even seemed to have mystical or magical fantasy. According to Confucian ideals, full appreciation of nature and its beauty was key to understanding the logics of the universe and to achieving a high moral standard, which contributed to decide to leave for the mountain as well. The essays, poems, and paintings of Mt. Kumgang since the Chosun Dynasty period that portrayed the mountain's beauty collectively served to produce the mountain as a socionatural landscape engendered with potent place-myths, important historical meaning, and strong aesthetic associations. Thus, the travel to the mountain seemed never completed over until travelers had completed various artistic representations to record and to memorize what they'd done and seen in Mt. Kumgang, which had been performed for the strong purpose of social sharing of the real the mountain's beauties and itinerary.

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