• Title/Summary/Keyword: Physical Geography

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Physical Characteristics of Ridge Traversing Trail in Mount Jiri National Park (지리산 국립공원 종주 등산로의 물리적 특성)

  • Kim, Tae-Ho
    • Journal of the Korean Geographical Society
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    • v.46 no.4
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    • pp.425-441
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    • 2011
  • Ridge traversing trail in Mount Jiri National Park is classified as flat, gully-like, unilateral, and asymmetric bilateral, paths based on a location and gradient of paths. These types are interchangeable due to a drainage condition of trail surfaces. Using a rapid survey, the trail is 135.9 cm wide, 23.6 cm deep and $5.1^{\circ}$ in a gradient, respectively. All treads have been compacted due to human trampling. The path width is affected by a slope aspect and a distribution of Sasa borealis. An asymmetric path is wider than a symmetric path. A soil erosion rate is equivalent to $68.9cm^2/year$ for the period from 1960 to 2009, suggesting that the trail has been widened 2.7 cm/year and the tread lowered 0.4 cm/year. Trampling and needle ice action combined with rainwash induced by a pipeflow are dominant erosion processes contributing to the trail expansion.

HYPERSPECTRAL IMAGERY AND SPECTROSCOPY FOR MAPPING DISTRIBUTION OF HEAVY METALS ALONG STREAMLINES

  • Choe, Eun-Young;Kim, Kyoung-Woong;Meer, Freek Van Der;Ruitenbeek, Frank Van;Werff, Harald Van Der;Smeth, Boudewijn De
    • Proceedings of the KSRS Conference
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    • 2007.10a
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    • pp.397-400
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    • 2007
  • For mapping the distribution of heavy metals in the mining area, field spectroscopy and hyperspectral remote sensing were used in this study. Although heavy metals are spectrally featureless from the visible to the short wave infrared range, possible variations in spectral signal due to heavy metals bound onto minerals can be explained with the metal binding reaction onto the mineral surface. Variations in the spectral absorption shapes of lattice OH and oxygen on the mineral surface due to the combination of heavy metals were surveyed over the range from 420 to 2400 nm. Spectral parameters such as peak ratio and peak area were derived and statistically linked to metal concentration levels in the streambed samples collected from the dry stream channels. The spatial relationships between spectral parameters and concentrations of heavy metals were yielded as well. Based on the observation at a ground level for the relationship between spectral signal and metal concentration levels, the spectral parameters were classified in a hyperspectral image and the spatial distribution patterns of classified pixels were compared with the product of analysis at the ground level. The degree of similarity between ground dataset and image dataset was statistically validated. These techniques are expected to support assessment of dispersion of heavy metal contamination and decision on optimal sampling point.

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Main-Memory Based Spatial Data Manager for Mobile Service (모바일 서비스를 위한 메인 메모리 기반 공간 데이터 관리자)

  • Oh, Byoung-Woo
    • Journal of Korea Spatial Information System Society
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    • v.8 no.1 s.16
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    • pp.77-92
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    • 2006
  • This paper proposes an efficient spatial data manager for map services in mobile environment. It is designed to provide interoperability and efficient performance at once. To provide interoperability and reusability, the spatial data manager conforms to international standards such as the OpenGIS Simple Features Implementation Specification for OLE/COM, OpenGIS Geography Markup Language (GML) Encoding Specification developed by the Open Geospatial Consortium (OGC). The spatial data manger exploits physical main memory using Address Windowing Extensions supported by Microsoft Windows to manage spatial data for efficient performance by reducing time to read data from disk on user's request. The format of the spatial data in main memory is target data (GML) to reduce conversion time from source data to it. Progressive transmission is also provided to reduce latency time by representing only received partial data for mobile environment without waiting whole transmission.

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The Case Study of Kobe City for Modeling of Healthy City (건강도시 모델 개발을 위한 고베시 사례 연구)

  • Lee, Ja-Won
    • Journal of the Korean association of regional geographers
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    • v.18 no.2
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    • pp.188-202
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    • 2012
  • The purpose of this study is to review a good sample for a healthy city to adapt its strategy. People has interested in the urban environment and their health in the region with a step-up in income and the improvement of living conditions. They has realized that urban environment is closely related to their quality of life, concentrated on development of clean city and healthy city from the point of urban planning. The movement of healthy city has been spread out from Europe on 1986, and WHO(World Health Organization) has been supporting the practical work to improve upon the physical or social condition on each regional level. The policy of healthy city has promoted centering around each local government which is made up of networking with others globally to interchange informations. This study reviewed a successful case of Kobe city in detail and will provide further useful insights into planners in building appropriate policies.

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Classification of Waterfalls in Jeju Island Based on Properties of a Lava Flow (용암류 특성에 의한 제주도 폭포의 유형화)

  • Kim, Tae-Ho
    • Journal of the Korean association of regional geographers
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    • v.18 no.2
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    • pp.129-140
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    • 2012
  • In order to examine geomorphic characteristics such as form and retreat process of waterfalls in Jeju Island, 26 waterfalls were classified based upon materials forming a fall face. The waterfalls could be categorized into three types such as single unit, multiple units and basal soft-rock based upon the number and type of a lava flow. A block fall, composed of a pile of large blocks, could be added to the typology of waterfalls in Jeju Island. While the single unit fall is distributed in a region of trachyte or trachyandecite, the multiple units fall and basal soft-rock fall are largely developed in a region of basalt or trachybasalt. A retreat process of the single unit fall is an inclination or a replacement, but the basal soft-rock fall shows a parallel retreat. The multiple units fall exhibits three types of a retreat process according to the physical properties of a lava flow. The fall face is generally vertical due to well-developed vertical joints of a lava flow.

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A Study on the Right to Housing in International Human Rights Laws and Instruments (국제인권법 및 인권규범의 주거권 규정에 대한 연구)

  • Kim, Yong Chang
    • Journal of the Korean association of regional geographers
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    • v.19 no.3
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    • pp.514-540
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    • 2013
  • Today human rights are the most complex and prominent issue in the system of international law, and the right to housing(housing right) is also recognized as a basic human right in the international human right instruments including the Universal Declaration of Human Rights. This study targets to comprehensive review of the housing rights provisions with 85 international human rights laws and instruments. And the contents and characteristics of housing rights are analyzed with categorization based on housing rights in general, housing rights of workers, socially vulnerable groups, international regional organizations. Housing right takes also the features of universality, indivisibility, interdependence, and right to adequate housing should be interpreted with holistic view including legal security of tenure, accessibility, affordability, location beyond ensuring just a physical housing space. Approaches to the housing right comprehensively reflect the view of the right to development, the perspective of gender equality, the principle of non-discrimination, the participation rights, and orient the housing right should be seen as the right to live somewhere in security(safety), peace and dignity.

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Evaluating Cross-correlation between Officially Land Price and Solar Radiation for Agricultural Field Parcels ('전' 지목 필지에 대한 공시지가와 일사량의 상관성 분석)

  • Joo, Seung Min;Choi, Jin Ho;Shin, Hye Jin;Um, Jung Sup
    • Journal of Korean Society for Geospatial Information Science
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    • v.22 no.3
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    • pp.31-37
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    • 2014
  • It is usual for the officially land price of agricultural field parcels to be determined by real estate appraisers's experienced knowledge and intuition without considering quantitatively physical factors that directly influence agricultural productivity. Solar radiation is the most important predictor of agricultural productivity. GIS based simulation techniques were used to evaluate correlation between the officially land price and solar radiation for agricultural field parcels. The results show that officially land price shows random distribution patterns in relation to solar radiation, which proves that officially land price for agricultural field does not reflect agricultural productivity. It is anticipated that this research output could be used as a valuable reference to support more scientific and objective decision-making in the official pricing process of agricultural field parcels.

A Study on Content Standard of Geographical Education (지리교육내용의 표준설정 방법 - 지적영역을 중심으로 -)

  • 조성욱
    • Journal of the Korean Geographical Society
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    • v.37 no.3
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    • pp.276-291
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    • 2002
  • The contents of geographical education present too inclusive and abstract regard as criteria in an existing curriculum. And geographical education oneself's system is difficult because they are set to the one part of educational side. This study pursuit to make content standard of geographical education based on geography as an alternative. This paper present standard setting up 5 steps. They are Ultimate Theme, Basic Theme, Major Standard, Standard, Detailed Standard. Ultimate Theme is discern geographical education whole : understand of interaction human and environment, understand of place and region, understand of interaction human and region. Basic Theme is concrete of ultimate theme ; geographical skill, physical environment, human environment, place and region, interaction of human and region. Standard is concrete and measurable level of basic theme, it is consist of three steps in Major Standard, Standard, Detailed Standard tv level of specification. Major Standard is consist of 17 item, Standard is 48 item, and Detailed Standard is detailed to unit level.

Suggestion for the Definition and Classification of Uninhabited Islands : A Case of Taeanhaean National Park (무인도서의 정의와 분류에 관한 소고 - 태안해안국립공원을 사례로 -)

  • Seo, Jong Cheol;Shin, Young Ho
    • Journal of the Korean association of regional geographers
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    • v.21 no.2
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    • pp.342-354
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    • 2015
  • We suggested definition and classification scheme of uninhabited islands in Taeanhaean National Park for efficient management. Islands (seom) and reefs (yeo) were classified based on approximate HHW. Uninhabited islands were categorized into vegetated islands and rocky islands depending on presence of woody vegetation cover for physical geographic and ecological value and importance. Reefs were also divided into an underwater reef and a reef which covers and uncovers based on approximate LLW. We excluded those areas which are not separated from main land by waterbody even though it is in approx. HHW from islands. We considered several divided areas which adjoin geographically and ecologically one another under the condition of approx. LLW as an island. By using above schemes, we categorized 50 uninhabited islands in Taeanhaean National Park into three groups; 24 vegetated islands, 14 rocky islands, and 12 reefs. If the public institutions adopt these schemes as national standards, it will be useful in managing uninhabited islands nationwide.

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Classification of Subregions in Yeongnam Region (영남지역 내 하위지역 구분)

  • Son, Myoung Won
    • Journal of the Korean association of regional geographers
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    • v.22 no.1
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    • pp.25-35
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    • 2016
  • This paper is to classify subregions of Yeongnam region, to realize their core area, and to provide the basis on studying inherent cultural characteristics in Yeongnam region. To do so, I made a overlay human factors of administrative district and dialect with physical factors of drainage basin and climate area. The limit of subregion is the range of possessing environmental factors similar to provincial center. The parcels possessing a equivalent combination of environmental factors are 27, the size of parcel is various from one-city/county to six-city/county. These parcels are classified to six subregions(Andong, Sangju, Kyeongju, Daegu, Kimhae, Jinju). The boundary of subregion is high mountains and large river which are obstacle to communication between subregions, and in case of little obstacle exists transitional zone.

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