• Title/Summary/Keyword: Cadastral Spatial Data

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A Study on the Efficiency of Cadastral Survey in Forest Areas Based on UAV LiDAR (UAV LiDAR 기반의 임야지역 지적측량 효율성 제고 방안)

  • Lee, Ki-Hoon
    • Journal of Cadastre & Land InformatiX
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    • v.54 no.1
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    • pp.5-17
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    • 2024
  • In this study, we examined the applicability of UAV LiDAR for cadastral surveying and proposed the results. For this purpose, an experimental area was selected and point cloud data was created by scanning the terrain using UAV LiDAR. Since there is no comparative verification target in the forest area, the coordinates of the verification points were obtained by directly surveying the ridge and valley lines prescribed by the current law. Based on these points, the point cloud density within a 7cm radius was analyzed. As a result, an average of 46 point clouds were generated within a circle with a radius of 7 centimeters, which can build a more precise topography of the forest area, proving that precise cadastral surveying is possible. In the case of UAV LiDAR, it is expected that the boundaries of forest areas can be extracted more accurately and efficiently without the influence of trees compared to the existing cadastral survey method. This is expected to have many advantages in various fields that want to use it in the future, such as the creation of stereoscopic maps of forest areas and terrain modeling for disaster safety in the forest areas.

A Strategy to Advance Real Estate Information by Integrating Building and Land Data (토지와 건물정보의 통합에 의한 부동산정보 고도화 방안)

  • Jang, Seng-Ouk;Jo, Myung-Hee
    • Journal of the Korean Association of Geographic Information Studies
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    • v.13 no.4
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    • pp.181-188
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    • 2010
  • For a proper use of the integrated real estate information, there must be a process on linking the information of buildings and land data. This study aims to enhance the location information of the buildings on the digital topographic map by assigning the coordinates on the building layout plan of the Building Registers which does not have a positional information based on the cadastral boundary of the cadastral map. Also, the land and building attribute information are managed in various official registers and systems which are overlapped each other. The overlapped information must be corrected based on legislation. Therefore this study introduces a comprehensive attribute information excluding any overlapped information. In other words, this study proposes a single advanced real estate information by integrating the attribute information and the separated real estate information(buildings and land).

A Study on the Survey Methodology in Riverbed Private Use using Integration Drone Photogrammetry and Cadastral Information (드론 사진측량과 지적정보를 융합한 하천부지 점용 조사방법)

  • Oh, Yi Kyun
    • Journal of Cadastre & Land InformatiX
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    • v.47 no.2
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    • pp.135-144
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    • 2017
  • The riverbed areas have exposed to various natural disasters and the private use by neighboring residents have caused many problems. The research objectives are to survey the actual situation of riverbed areas in order to prevent landscape damage and private use. Drone and photogrammetry, orthophoto, DSM(Digital Surface Model), digital topographic map and cadastral information have been integrated by GIS technology. The flood and disaster vulnerable area has been surveyed and the land use and private use has been analyzed using cadastral information. The research results show that the analyzed data can be used for providing foundation data for management of river and also can be used for surveying actual situation of private use on the riverbed areas.

Developing the 3D high-resolution forest mapping system using satellite images and GIS

  • Jo Myung-Hee;Jo Yun-Won;Kim Dong-Young;Kim Joon-Bum;Kim In-Ho
    • Proceedings of the KSRS Conference
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    • 2004.10a
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    • pp.322-325
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    • 2004
  • Recently the domestic technologies to manage forest and to control all related information were developed very rapidly by integrating FGIS (Forest Geographic Information System) and IT (Information technology). However, there still exists a mapping problem for example when overlaying a topography maps scaled in 1/5,000 to a forest type map scaled in 1/25.000. Moreover, there is a greater need to introduce the advanced spatial technologies such as high-resolution satellite image such as IKONOS and GIS to forest. In this study, 3D high-resolution forest mapping system was developed to possibly overlay with all kinds of scale maps and provide the all detailed information by using high-resolution satellite image and GIS. Through this system, all related forest officials could have and maintain the data consistency for their job and share the standard forest database with other post.

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The Research on Coherence of Legal System for Systematic Development of Spatial Information (공간정보의 체계적 발전을 위한 법제도적 정합성에 관한 연구)

  • Kim, Hyun-Hee;Lim, Hyung-Taek
    • Journal of Cadastre & Land InformatiX
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    • v.45 no.1
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    • pp.1-15
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    • 2015
  • Korea's Spatial Information Policy has been institutionalized based by "National Spatial Data Infrastructure Act", "Act on Land Survey, Waterway Survey and Cadastral Records", "Spatial Data Industry Promotion Act". In year 2015, These acts were modified with new names and contents. It is critical that the definition of spatial information ought to be generalized. In addition, it is of paramount importance to review factors those contribute to the systematic development on coherent relation between Spatial Information Act and other acts. Examples of improvement area may include: Categorization of Spatial Information Concept, Systematization of Spatial Data Related Legislation, and Enhancement of Organization Specializing in Spatial Information. Furthermore, Legislation & Policy case of Germany, France and the United States were used as a basis for improvement.

A Study on Spatial Distribution of Villages in Border Region according to Change in Civilian Control Line (민간인통제선 변화에 따른 접경지역 마을의 공간적 분포에 관한 연구)

  • JEONG, Haeyong
    • Journal of the Korean Association of Geographic Information Studies
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    • v.24 no.2
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    • pp.91-101
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    • 2021
  • This study attempted to conduct the study from a macro perspective more specifically through the temporal and spatial analysis of Minbuk villages according to a change in a Civilian Control Line, such as a social and spatial distribution and a change of the existing Minbuk villages. To this end, this study conducted the spatial analysis for the change in the Minbuk villages according to the adjustment of the Civilian Control Line in time series by using a map of the Armistice Agreement Vol. 2, Google Earth, a digital cadastral map, an administrative district map, and the like are used as spatial data, and summarizing and constructing, as attribute data, a statistical yearbook, Ministry of Defense and Cheorwon-Gun notification data, a Land Use Regulation Information System, and cadastral map attribute information. After the enactment of the Military Facility Protection Act, the analysis was performed on a 20-year basis based on the 1976 statistical yearbook of which the Civilian Control Line was drawn. As a result, the total area of the Civilian Control Zone in Cheorwon from 1975 to 2015 decreased by 105.8 km2, and 9 of 14 Minbuk villages were released and only 6 villages existed. The unoccupied villages were analyzed as 14 villages, 10 fewer than the existing surveyed or statistical villages. The movement of the Civilian Control Line to the north may disappear the unique characteristics of the Minbuk villages but should be done carefully as it is closely related to the lives of the current residents, and policies should be established in terms of sustainable development and conservation of the villages. This study is significant in conducting the temporal and spatial analysis, which is the basis of the Minbuk regions and the Minbuk villages, and may be used as basic data necessary for subsequent analysis study.

The Analysis of the Coastline Data Registered in Cadastral Records (해안토지의 지적공부등록실태 연구)

  • Choi, Gyu-Myeong;Kwon, Jay-Hyoun;Choi, Yun-Soo
    • Journal of Korean Society for Geospatial Information Science
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    • v.14 no.4 s.38
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    • pp.45-51
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    • 2006
  • Recently the coast is an important area in terms of spatial land use and natural environment conservation such as the expansion of a national land and the development of a coastal industrial zone in Korea. We can not provide a proper solution for a boundary determination raised by a land ownership dispute due to the insufficient coast land registration. We observed the status of the coast land registration and analyzed the problem through the investigation of the difference between a land title and a coast land in the study area. We selected the west coast with the big difference between the ebb and flow of the tide as the study area from a paper review, compared a cadastral line with a coast line and suggested a good guideline to solve the problem through understanding the status of the coast land title registration in Korea.

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A Study on the Spatial Distribution Characteristic of Urban Surface Temperature using Remotely Sensed Data and GIS (원격탐사자료와 GIS를 활용한 도시 표면온도의 공간적 분포특성에 관한 연구)

  • Jo, Myung-Hee;Lee, Kwang-Jae;Kim, Woon-Soo
    • Journal of the Korean Association of Geographic Information Studies
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    • v.4 no.1
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    • pp.57-66
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    • 2001
  • This study used four theoretical models, such as two-point linear model, linear regression model, quadratic regression model and cubic regression model which are presented from The Ministry of Science and Technology, for extraction of urban surface temperature from Landsat TM band 6 image. Through correlation and regression analysis between result of four models and AWS(automatic weather station) observation data, this study could verify spatial distribution characteristic of urban surface temperature using GIS spatial analysis method. The result of analysis for surface temperature by landcover showed that the urban and the barren land belonged to the highest surface temperature class. And there was also -0.85 correlation in the result of correlation analysis between surface temperature and NDVI. In this result, the meteorological environmental characteristics wuld be regarded as one of the important factor in urban planning.

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A Study on the Problem and Improvement Plan of Management of Public Land Parcels (국공유지 필지 관리의 문제점 및 개선 방안)

  • Kim, Jin;Jung, Young-Jin;Kim, Jun-Ho;Lee, Hyun-Joon;Hong, Sung-Eon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.1
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    • pp.136-145
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    • 2015
  • This study analyzes the status and problems of current parcel management in the public land, and it suggests measures for improvement based on the analysis. For this, it looked into the status and problems of the public land's parcel management. One of the major problems was that the number of parcels was continuously increasing due to insufficient parcel management. The study found that the number was increasing every year by 128,520 parcels on average as of 2008. It also found that there was also non-coincidence between the status and the land use conditions in the cadastral records. An increasing set of minute parcels (minute polygon) has appeared because of these outstanding issues, and these errors have been included in the statistics survey on parcels, negatively influencing the credibility of the data. This study suggests ways to improve these issues including reduction in the number of parcels through annexation, enhancement of credibility of cadastral information through cadastral confirmation survey, and registration and management of public land parcels in consideration of the current status.

Comparing the Survey Package of Land Administration Domain Model with the Cadastral Information Model in Korea (ISO TC 211 Land Administration Domain Model의 SurveyPackage와 국내지적정보모델의 비교 연구)

  • Kim, Sang-Min;Han, Soo-Hee;Heo, Joon
    • Journal of Korean Society for Geospatial Information Science
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    • v.17 no.4
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    • pp.113-119
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    • 2009
  • In Ubiquitous Information society, real shape of spatial information and accurate position information are required. Spatial information standardization is needed to service for the people. International standard was defined to ensure compatibilities of various standards, technologies, and terminologies and to promote mutual trade certain criteria and standard forms were established through international agreement. International standard is made by International Organization for Standardization, and International Standard Organization Technical Committee 211 manages the geographic information field. ISO TC 211 is working on LADM (Land Administration Domain Model) which defines administration law and spatial surveying component related to land and efficiently manages data and land systems of the countries. This study introduced processing of standardization of a surveying package which is related with LADM and comparing it with Korea Cadastral information system.

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