산악지역에서 상대중력측량에 의한 정표고 산정 = Calculation of Orthometric Height Based on Relative Gravity in Mountainous Areas

다국어 초록 (Multilingual Abstract)

In Korea, orthometric height is adopted as standard height. However normal orthometric height based on normal gravity is used because the gravity survey is not completed on the whole country. To solve this height system difference, we need to calculate orthometric correction, which is the difference between leveling height as geometric height and orthometric height as physical height. Thus, gravity surveying combined with leveling furnishes orthometric height.
In this study, used the relative gravimeter from mountainous area which is calculated orthometric correction relatively greater than flat area, gravity was surveyed. Existing six formulas are used to calculate the orthometric correction for one network and proposed the optimum calculation of orthometric correction. Based on the result of optimum calculation is computed about orthometric height.
Among the existing formulas, Nassar's formula and Hwang's formula are made a optimum estimation.
Therefore Korean geography consists mainly of mountainous area, computation of orthometric height is required by using orthometric correction. Recently utilizability about location information increased in actual life, this study has contributed that accurate geodetic standard can be made.

목차 (Table of Contents)

• List of Tables ⅶ
• List of Figures ⅹ
• Abstract ⅻ
• 1. 서 론 1
• 1.1 연구배경 및 목적 1
• 1.2 연구동향 3
• 1.3 연구범위 및 방법 6
• 2. 이론적 배경 8
• 2.1 중력 8
• 2.1.1 상대중력 자료와 기본보정 8
• 2.1.2 망조정 11
• 2.1.3 정규중력 12
• 2.1.4 절대중력 보정, 중력이상 18
• 2.2 높이 체계 23
• 2.2.1 타원체고 23
• 2.2.2 Geopotential number와 역표고(Dynamic height) 25
• 2.2.3 정표고(Orthometric height) 27
• 2.3 정사보정량 29
• 2.3.1 Nassar, M.M.의 정사보정량 30
• 2.3.2 Hofman, W.B. and Moritz, H.의 정사보정량 32
• 2.3.3 Hwang, C. and Hsiao, Y.S.의 정사보정량 34
• 2.3.4 Van, H. and Strang, G.L.의 정사보정량 36
• 3. 상대중력의 측량 및 처리 38
• 3.1 상대중력의 측량 38
• 3.1.1 경상북도 지역 40
• 3.1.2 전라남도 지역 41
• 3.2 상대중력의 기본보정 41
• 3.3 절대중력 및 중력이상 계산 43
• 3.4 정규중력 계산 44
• 4. 정사보정량 및 정표고 산정 46
• 4.1 정사보정량 계산 46
• 4.2 정표고 산정 47
• 4.3 결과 분석 49
• 4.3.1 정사보정량 계산결과 상관도 분석 49
• 4.3.2 수준점간 표고차와 정사보정량 비교 51
• 4.3.3 대상지역에 적합한 정사보정량 선정 51
• 5. 결 론 53
• 참 고 문 헌 55