An improved global zenith tropospheric delay model GZTD2 considering diurnal  variations

Yao, Yibin; Hu, Yufeng; Yu, Chen; Zhang, Bao; Guo, Jianjian

doi:https://doi.org/10.5194/npg-23-127-2016

Articles | Volume 23, issue 3

https://doi.org/10.5194/npg-23-127-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/npg-23-127-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 23, issue 3

Research article

|

27 May 2016

Research article |

| 27 May 2016

An improved global zenith tropospheric delay model GZTD2 considering diurnal variations

Yibin Yao, Yufeng Hu, Chen Yu, Bao Zhang, and Jianjian Guo

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Final revised paper (published on 27 May 2016)
Preprint (discussion started on 10 Mar 2016)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'review of npg-2016-9 discussion paper', Anonymous Referee #1, 25 Apr 2016
- AC1: 'Response to the Referee Comment 1', Yibin Yao, 29 Apr 2016
- AC3: 'the list of changes and marked-up manuscript', Yibin Yao, 10 May 2016
RC2: 'An improved global zenith tropospheric delay model GZTD2 considering diurnal variations', Anonymous Referee #2, 28 Apr 2016
- AC2: 'Response to the Referee Comment 2', Yibin Yao, 02 May 2016
- AC4: 'the list of changes and marked-up manuscript', Yibin Yao, 10 May 2016

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Yibin Yao on behalf of the Authors (10 May 2016) Author's response Manuscript

ED: Publish as is (13 May 2016) by Jose M. Redondo

AR by Yibin Yao on behalf of the Authors (14 May 2016)

Short summary

By considering the diurnal variations in zenith tropospheric delay (ZTD) and modifying the model expansion function, we developed an improved global empirical ZTD model GZTD2 with higher temporal and spatial resolutions compared to our previous GZTD model. The external validation testing with IGS ZTD data shows the bias and rms for GZTD2 are −0.3 and 3.9 cm respectively, indicating higher accuracy and reliability for geodesy technology compared to GZTD and other commonly used ZTD models.