On the information content in linear horizontal delay gradients estimated from space geodesy observations

SND-ID: SND 1090

Description Data and documentation

Creator/Principal investigator(s)

Gunnar Elgered - Chalmers University of Technology, Department of Space, Earth and Environment orcid

Peter Forkman - Chalmers University of Technology, Department of Space, Earth and Environment orcid

Rüdiger Haas - Chalmers University of Technology, Department of Space, Earth and Environment orcid

Tong Ning - Lantmäteriet

Description

The data are produced for a scientific article, https://doi.org/10.5194/amt-2018-318, with the following abstract:

We assess the quality of estimated linear horizontal gradients in the atmospheric propagation delay above ground-based stations receiving signals from the Global Positioning System (GPS). Gradients are estimated from 11 years of observations from five stations in Sweden. Comparing these gradients with the corresponding ones from the European Centre for Medium-Range Weather Forecasts (ECMWF) analyses show that GPS gradients confirm known seasonal effects both in the hydrostatic and the wet components. The two GPS stations equipped with microwave absorbing material below the antenna in general show higher correlation coefficients with the ECMWF gradients compared to the other three stations. We also estimated gradients using GPS data from two collocated antenna installations at the Onsala Space Observatory. Correlation coefficients for the east and the north wet gradients from GPS can for specific months reach up to 0.8 when compared to simultaneously estimated wet gradients from m

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Language

English

Research principal, contributors, and funding

Contributor(s)

Lantmäteriet

Protection and ethical review
Method and time period

Time period(s) investigated

2006-01-01–2016-12-31

Geographic coverage

Geographic spread

Geographic location: Sweden

Geographic description: Atmospheric observations from ground-based receivers of signals from the Global Positioning System (GPS) at five sites in Sweden: Kiruna, Mårtsbo, Borås, Onsala, and Visby.

Publications

Elgered, G., Ning, T., Forkman, P., and Haas, R.: On the information content in linear horizontal delay gradients estimated from space geodesy observations, Atmos. Meas. Tech. Discuss., https://doi.org/10.5194/amt-2018-318

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Dataset
On the information content in linear horizontal delay gradients estimated from space geodesy observations

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Citation

Gunnar Elgered, Peter Forkman, Rüdiger Haas, Tong Ning. Chalmers University of Technology, Department of Space, Earth and Environment (2019). <em>On the information content in linear horizontal delay gradients estimated from space geodesy observations</em>. Swedish National Data Service. Version 1.0. <a href="https://doi.org/10.5878/nswt-yr39">https://doi.org/10.5878/nswt-yr39</a>

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Data format / data structure

Numeric

Creator/Principal investigator(s)

Gunnar Elgered - Chalmers University of Technology, Department of Space, Earth and Environment orcid

Peter Forkman - Chalmers University of Technology, Department of Space, Earth and Environment orcid

Rüdiger Haas - Chalmers University of Technology, Department of Space, Earth and Environment orcid

Tong Ning - Lantmäteriet

Time period(s) investigated

2006-01-01–2016-12-31

Contact for questions about the data

Published: 2019-02-22
Last updated: 2019-11-07