Next Article in Journal
Evaluation of SPL100 Single Photon Lidar Data
Previous Article in Journal
The Current Configuration of the OSTIA System for Operational Production of Foundation Sea Surface Temperature and Ice Concentration Analyses
Open AccessArticle

Development of Global Tropospheric Empirical Correction Model with High Temporal Resolution

by Chaoqian Xu 1, Yibin Yao 1,2, Junbo Shi 1,3,*, Qi Zhang 1 and Wenjie Peng 1
1
School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China
2
Key Laboratory of Geospace Environment and Geodesy, Ministry of Education, Wuhan University, Wuhan 430079, China
3
Key Laboratory of Precise Engineering and Industry Surveying, National Administration of Surveying, Mapping and Geoinformation, Wuhan 430079, China
*
Author to whom correspondence should be addressed.
Remote Sens. 2020, 12(4), 721; https://doi.org/10.3390/rs12040721
Received: 21 January 2020 / Revised: 14 February 2020 / Accepted: 18 February 2020 / Published: 21 February 2020
The accuracy of global tropospheric empirical models depends on the model expression and the modeling data sources. Although the current temporal resolution of available models is usually one day, it is anticipated that this will be improved in the future. To achieve compatibility with future high temporal-resolution data sources, this study develops a new global tropospheric correction model, the Wuhan-University Global Tropospheric Empirical Model (WGTEM). Evaluation of WGTEM model expression determines that it has better precision than other models, and this is attributed to its ability to consider diurnal variations in meteorological parameters and the double-peak daily variation in air pressure, which are not concerned in other models. The external accuracy of the WGTEM was evaluated after modeling with the European Centre for Medium-range Weather Forecasts (ECMWF) ERA-Interim products, and results show its accuracy exceeds that of the current ITG model and its Zenith Tropospheric Delay (ZTD) performance is also superior. View Full-Text
Keywords: global empirical troposphere model; piecewise modeling; temporal resolution global empirical troposphere model; piecewise modeling; temporal resolution
Show Figures

Graphical abstract

MDPI and ACS Style

Xu, C.; Yao, Y.; Shi, J.; Zhang, Q.; Peng, W. Development of Global Tropospheric Empirical Correction Model with High Temporal Resolution. Remote Sens. 2020, 12, 721.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop