Abstract
An improved approach for Terrain Correction (TC), named Conical Cross-section method, is demonstrated in this study. Conical Cross-section method directly corrects the effect from gravity attractions between surface surveying-site and geoid. For estimating TC precisely, Conical Cross-section method assumes surveying-site as an original point, and divides surveying-site's neighbor topography into several sector areas with equal central angle to describe the variance of topography. In this paper, four specific points were selected from different features of topography. From the calculated results, we found out the TCs would be into a stable status by using twelve or more equally divided sectors of topography. The compared results between Conical Cross-section method and Hammer's method are within 4 mgal at three specific points except YuSan peak of 12.6 mgal. However, the Conical Cross-section method is more suitable than Hammer's for TCs in complex topography area.
| Original language | English |
|---|---|
| Pages (from-to) | 187-196 |
| Number of pages | 10 |
| Journal | Chung Cheng Ling Hsueh Pao/Journal of Chung Cheng Institute of Technology |
| Volume | 39 |
| Issue number | 2 |
| Publication status | Published - 2010 Nov 1 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
Cite this
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Application of conical cross-section to terrain correction for gravity reduction. / Chen, Kwo Hwa; Rau, Ruey-Juin; Wang, Jian Li.
In: Chung Cheng Ling Hsueh Pao/Journal of Chung Cheng Institute of Technology, Vol. 39, No. 2, 01.11.2010, p. 187-196.Research output: Contribution to journal › Article
TY - JOUR
T1 - Application of conical cross-section to terrain correction for gravity reduction
AU - Chen, Kwo Hwa
AU - Rau, Ruey-Juin
AU - Wang, Jian Li
PY - 2010/11/1
Y1 - 2010/11/1
N2 - An improved approach for Terrain Correction (TC), named Conical Cross-section method, is demonstrated in this study. Conical Cross-section method directly corrects the effect from gravity attractions between surface surveying-site and geoid. For estimating TC precisely, Conical Cross-section method assumes surveying-site as an original point, and divides surveying-site's neighbor topography into several sector areas with equal central angle to describe the variance of topography. In this paper, four specific points were selected from different features of topography. From the calculated results, we found out the TCs would be into a stable status by using twelve or more equally divided sectors of topography. The compared results between Conical Cross-section method and Hammer's method are within 4 mgal at three specific points except YuSan peak of 12.6 mgal. However, the Conical Cross-section method is more suitable than Hammer's for TCs in complex topography area.
AB - An improved approach for Terrain Correction (TC), named Conical Cross-section method, is demonstrated in this study. Conical Cross-section method directly corrects the effect from gravity attractions between surface surveying-site and geoid. For estimating TC precisely, Conical Cross-section method assumes surveying-site as an original point, and divides surveying-site's neighbor topography into several sector areas with equal central angle to describe the variance of topography. In this paper, four specific points were selected from different features of topography. From the calculated results, we found out the TCs would be into a stable status by using twelve or more equally divided sectors of topography. The compared results between Conical Cross-section method and Hammer's method are within 4 mgal at three specific points except YuSan peak of 12.6 mgal. However, the Conical Cross-section method is more suitable than Hammer's for TCs in complex topography area.
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UR - http://www.scopus.com/inward/citedby.url?scp=83755185507&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:83755185507
VL - 39
SP - 187
EP - 196
JO - Chung Cheng Ling Hsueh Pao/Journal of Chung Cheng Institute of Technology
JF - Chung Cheng Ling Hsueh Pao/Journal of Chung Cheng Institute of Technology
SN - 0255-6030
IS - 2
ER -