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Licensed Unlicensed Requires Authentication Published by De Gruyter December 7, 2019

Subsidence is determined in the heart of the Central Valley using Post Processed Static and Precise Point Positioning techniques

  • Y. Facio and M. Berber EMAIL logo

Abstract

Post Processed Static (PPS) and Precise Point Positioning (PPP) techniques are not new; however, they have been refined over the decades. As such, today these techniques are offered online via GPS (Global Positioning System) data processing services. In this study, one Post Processed Static (OPUS) and one Precise Point Positioning (CSRS-PPP) technique is used to process 24 h GPS data for a CORS (Continuously Operating Reference Stations) station (P565) duration of year 2016. By analyzing the results sent by these two online services, subsidence is determined for the location of CORS station, P565, as 3–4 cm for the entire year of 2016. In addition, precision of these two techniques is determined as ∼2 cm. Accuracy of PPS and PPP results is 0.46 cm and 1.21 cm, respectively. Additionally, these two techniques are compared and variations between them is determined as 2.5 cm.

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Received: 2019-10-08
Accepted: 2019-11-23
Published Online: 2019-12-07
Published in Print: 2020-01-28

© 2020 Walter de Gruyter GmbH, Berlin/Boston

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