Articles | Volume 17, issue 3
https://doi.org/10.5194/esd-17-695-2026
https://doi.org/10.5194/esd-17-695-2026
Research article
 | Highlight paper
 | 
12 Jun 2026
Research article | Highlight paper |  | 12 Jun 2026

Atmospheric river trajectories organise along a global transport network

Tobias Braun, Sara M. Vallejo-Bernal, Norbert Marwan, Juergen Kurths, Johannes Quaas, Albert Díaz-Guilera, Luis Gimeno, and Miguel D. Mahecha

Data sets

ERA5 hourly data on single levels from 1940 to present H. Hersbach et al. https://doi.org/10.24381/cds.adbb2d47

[Data] Global Atmospheric Rivers Database, Version 4 B. Guan https://doi.org/10.25346/S6/ZSW7UN

The Atmospheric River-CONNected objECT (AR-CONNECT) algorithm applied to the National Aeronautics and Space Administration (NASA) Modern-Era Retrospective Analysis for Research and Applications, Version 2 (MERRA V2) - 1983 to 2016 E. J. Shearer et al. https://doi.org/10.6075/J0D21W00

Model code and software

ARnetwork.py Tobias Braun https://doi.org/10.5281/zenodo.20408192

PIKART: A Comprehensive Global Catalog of Atmospheric Rivers (v1.0) S. M. Vallejo-Bernal et al. https://doi.org/10.5281/zenodo.17109482

Image-Processing based Atmospheric River Tracking (IPART) algorithms version 1 G. Xu et al. https://doi.org/10.5281/zenodo.3864592

Download
Editorial statement
Atmospheric Rivers transport vast amounts of water vapor and are often associated with weather extremes. This paper shows that Atmospheric Rivers organise along a sparse set of preferred pathways, forming a global network. Such a perspective can lead to improved forecasts of extreme precipitation, droughts and polar ice melt under climate change.
Short summary
Atmospheric rivers (ARs) move vast amounts of water through the atmosphere and often cause weather extremes, yet they are usually studied as regional events. Using 84 years of mapped AR trajectories, we reveal the global "roadmap" of ARs, a transport network of high-activity hubs, sparse atmospheric highways & hierarchical basins. Our approach shows how water vapor is systematically channelled through an atmospheric transport network, offering new ways to study changes in the global water cycle.
Share
Altmetrics
Final-revised paper
Preprint