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Geodetic and geophysical results from a Taiwan airborne gravity survey: Data reduction and accuracy assessment. 授課教授:謝平城 指導教授:蕭宇伸 姓名:王偉龍 日期: 0513. 大綱. 前言 研究方法 精度分析 研究成果 結論. 台灣本島高山居多,四周環海,此為重力測量工作遲遲未有重大發展的因素之一。 特別是高山地區,由於此區重力不易以陸測方式獲得,故造成重力資料極度缺乏,這對計算精準的大地起伏與高程基準非常不利。 - PowerPoint PPT Presentation
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Geodetic and geophysical results from a Taiwan airborne gravity survey: Data reduction and accuracy assessment0513
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2004520055KMS()*
8 GPS (YMSM)(PKGM)(KDNM)(FLNM)(TMAM)(KMNM)(MZUM)(SNAM)(CCK)
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644.5222010-56-30
Trimble 5700 GPS 1Hz5156 300
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*
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GPSurvey()(YMSM)
Bernese(Root-Mean-Square)*
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Altitude (km) (km)0.50.86211.10221.57732.04742.51352.91163.36373.81384.261
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GGM02C EGM 96
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(altimetry)(weighted constraint method)
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CaseMaxMinMeanRmsBefore adjustment13.97-13.33-0.244.92after adjustment10.07-9.170.002.88
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RMS
26
Line26Line55
75Line26Line5575Line26Line55
150s Line263 mgal*
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GGM02C EGM 96
(Fourier transform)(least-square collocationLSC)
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()
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Bouguer
2.67g/cmDTM*
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GPS1023 mgalFourier106
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End
Thanks for listening*
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dt
dT
dtdT
Cycle Slip*
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1 mGal=0.00001 m/s29.8 m/s21 mGal*
() 1. (mean sea level) 2. (geoid) *