頁籤選單縮合
題 名 | 臺灣重力網平差及重力資料整合=Adjustment of Taiwan Gravity Network and Combination of Gravity Data |
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作 者 | 黃金維; 郭重言; 儲慶美; 甯方璽; | 書刊名 | 測量工程 |
卷 期 | 40:3 1998.09[民87.09] |
頁 次 | 頁71-80 |
分類號 | 440.92 |
關鍵詞 | 重力網平差; Adjustment of gravity network; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究以加權約制平差求解聯勤測量隊進行全省重力網量測之重力網中各未知重 力 點的絕對重力值。平差結果,其後驗中誤差為±0.020 mgal,各未知重力點中誤差估值 為0.1∼0.3 mgal。最後利用不同方法將平差後的重力值與已存在的陸上重力和船測重力整 合,再將整合的重力資料以最小二乘配置法計算出大地起伏,並檢核其精度,結果發現不 同的整合方法所求之大地起伏精度相近。 |
英文摘要 | This study adjusts the gravity measurements collected by Base Survey Battalion using least-squares with constraints. The estimated posteriori variance is ±0.020 mgal and the error estimates of the gravity values at given gravity stations are 0.1 to 0.3 mgal. The adjusted gravity data are combined with existing land gravity data and shipborne gravity data by different methods. The accuracy of each geoid model (undulation), computed by least-squares collocation and combined gravity data, are alike. |
本系統中英文摘要資訊取自各篇刊載內容。