우리나라 1等水準網의 調整計算

Adjustment Computation of the Korean Primary Levelling Network

본 연구에서는 國立地理院에서 1974년‒1986년에 수행한 우리나라 제1차 1等水準測量 데이터의 철저한 分析이 이루어졌다. 각 노선별 正確度의 분석과 調整結果의 검토를 통하여 각국의 경우와 비교·평가되었다. 연구결과로는 水準網에 내제된 定誤差가 전반적으로 크게 나타나고 있으나 국제측지학협회(IAG)의 精密水準測量 정확도를 만족하고 있으므로 地圖製作이나 建設工事용으로 타당함을 보여주고 있다.

This paper deals with the analysis and adjustment computation for the Korean 1st levelling data obtained by the National Geography Institute from 1974 to 1986. An evaluation of the accuracy of level lines using forward/back discrepancies and adjustment residuals has been carried out. A general assessment of the network in the light of current standa-rds with other countries is discussed. The results of this study show that systematic errors are relatively high but the accuracy of the primary levelling is good enough within the limitation of precision levelling according to Interna-tional Association of Geodesy(IAG) Resolution, and therefore it is concluded that levelling will satisfy the present mapping and engineering servey.