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Additional Information

Competing Interests

The authors work directly on the development of WebWorldWind via ESA or NASA.

Author Contributions

Yann Voumard wrote the paper, prepared figures and/or tables, performed the computation work.

Paulo Sacramento wrote the paper, reviewed drafts of the paper.

Pier Giorgio Marchetti reviewed drafts of the paper.

Patrick Hogan reviewed drafts of the paper.

Data Deposition

The following information was supplied regarding data availability:


The work presented in this paper was funded by the European Space Agency (ESA). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

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