An adaptive approach to optimise regional geoid undulation model for engineering applications

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2022-07-11 DOI:10.1080/00396265.2022.2096340

Chun-Jia Huang, Jen-Yu Han

引用次数: 0

Abstract

Geoid undulation model is typically used for the conversion between GNSS obtained ellipsoidal heights and their orthometric counterparts. In this study, an adaptive approach for optimizing regional geoid model based on global geoid model and local GNSS/leveling measurements is presented. A rigorous sequential least squares approach coupled with an adjustable criterion is used for identifying appropriate observables so that an optimized model that fulfills a predefined quality level can be automatically produced. It has been demonstrated that a city scale geoid undulation model with a quality level around ± 14 can be obtained by applying the proposed approach.

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一种用于工程应用的区域大地水准面起伏模型优化的自适应方法

大地水准面起伏模型通常用于GNSS获得的椭球高度与其正交高度之间的转换。本文提出了一种基于全球大地水准面模型和局部GNSS/水准测量的区域大地水准面自适应优化方法。将严格的序列最小二乘法与可调标准相结合，用于识别适当的可观察性，从而可以自动生成满足预定义质量水平的优化模型。已经证明，一个质量水平为±的城市尺度大地水准面起伏模型 14可以通过应用所提出的方法来获得。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.