Calculating the differences of VTEC values obtained by altimetric and GNSS observations in coastal areas

IF 1.2 4区地球科学 Q3 ENGINEERING, CIVIL

Survey Review Pub Date : 2022-10-27 DOI:10.1080/00396265.2022.2137130

Miloš Marković, O. Odalović, M. Stanković

引用次数: 0

Abstract

The difference between the VTEC values obtained from the Global Navigation Satellite System (GNSS) and satellite altimetry is much more noticeable over the ocean and the sea due to less coverage of the GNSS observations. Previous research shows that differences can go up to 15 TECU. The main problem is calculating VTEC from raw data which is ambiguous. This paper presents filtering methods for estimating the differences between mentioned datasets. By using this solution, it is possible to achieve better accuracy on a global estimation of the deviation. The International Reference Ionosphere values were used for validation of the results.

查看原文本刊更多论文

计算沿海地区通过测高和全球导航卫星系统观测获得的VTEC值的差异

全球导航卫星系统（GNSS）和卫星测高获得的VTEC值之间的差异在海洋和海洋上更为明显，因为GNSS观测的覆盖范围较小。先前的研究表明，差异可能高达15TECU。主要问题是根据模糊的原始数据计算VTEC。本文提出了用于估计上述数据集之间差异的滤波方法。通过使用该解决方案，可以在偏差的全局估计上实现更好的精度。国际参考电离层值用于验证结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Survey Review 地学-地球科学综合

CiteScore

3.50

自引率

6.20%

发文量

审稿时长

6 months

期刊介绍： Survey Review is an international journal that has been published since 1931, until recently under the auspices of the Commonwealth Association of Surveying and Land Economy (CASLE). The journal is now published for Survey Review Ltd and brings together research, theory and practice of positioning and measurement, engineering surveying, cadastre and land management, and spatial information management. All papers are peer reviewed and are drawn from an international community, including government, private industry and academia. Survey Review is invaluable to practitioners, academics, researchers and students who are anxious to maintain their currency of knowledge in a rapidly developing field.