인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
개인구독
소속 기관이 없으신 경우, 개인 정기구독을 하시면 저렴하게
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지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
As GNSS (Global Navigation Satellite System) surveying became widely used, the use of modern surveying method that determines the orthometric height at an unknown point using a geoid model is growing in the surveying field. Considering the precision of the current geoid model, which is about 2-3 cm, it is expected that orthometric height with an accuracy of approximately ±10 cm can be achieved based on network RTK (Real Time Kinematic) surveying, especially for the reconnaissance survey among public surveys. Therefore, a total of 6,499 data with ellipsoidal heights on the NCPs (National Control Points) were collected through network RTK surveying for the public survey, and orthometric heights were calculated. At this point, a new hybrid geoid model called KNGeoid24 (Korea National Geoid 2024) was developed and applied as the current official geoid model, KNGeoid18, has regional bias due to reannouncement of orthometric heights for NCPs in 2023. The degree of fit of KNGeoid24 was evaluated at approximately 2.3 cm. When comparing the orthometric heights determined using KNGeoid24 with the official orthometric heights of NCPs, it was found that 95.3% of the 6,499 data points (6,196 points) showed differences within ±10 cm. Therefore, it is necessary to revise public survey regulations to utilize the latest KNGeoid when determining orthometric height based on network RTK surveying for reconnaissance survey.
본문·목차
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
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