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政大機構典藏 > 社會科學學院 > 地政學系 > 期刊論文 > Item 140.119/63379

Please use this identifier to cite or link to this item: https://nccur.lib.nccu.edu.tw/handle/140.119/63379

Title:	Orthometric Height Improvement in Tainan City using RTK GPS and Local Geoid Corrector Surface Models
Authors:	林老生 Lin, Lao-Sheng
Contributors:	地政系期刊論文
Date:	2013.06
Issue Date:	2014-01-08 17:28:38 (UTC+8)
Abstract:	Various corrector surface models are proposed to mitigate systematic height errors in order to fit the orthometric heights determined by combining the Tainan City real-time kinematic (RTK) global positioning system (GPS) network and the local geoid model data to the published orthometric heights. Several data sets for Tainan City were tested and analyzed. Two geometric geoid models and one gravimetric-geometric geoid model were generated using the GPS/leveling data. Consequently, three types of orthometric heights were determined (Model I, II, and III). The selection of the optimal corrector surface model for different Models was based on a series of statistical tests. The test results show that: (1) the selection of the optimal corrector surface model is highly related to the geoid model generating method, hence the optimal corrector surface models are a fifth-degree polynomial for Model I and II and a seven-parameter similarity transformation for Model III; and (2) the determined orthometric height is accurate to 2–4 cm after applying an optimal corrector surface model.
Relation:	Journal of Surveying Engineering
Data Type:	article
DOI 連結:	http://dx.doi.org/10.1061/(ASCE)SU.1943-5428.0000114
DOI:	10.1061/(ASCE)SU.1943-5428.0000114
Appears in Collections:	[地政學系] 期刊論文

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