Details zur Publikation |
| Kategorie | Textpublikation |
| Referenztyp | Zeitschriften |
| DOI | 10.1038/s43247-025-03111-5 |
Lizenz  |
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| Titel (primär) | Regional responses to oceanic variability constrain global drought synchrony |
| Autor | Bhatia, U.; Poonia, H.; Tantary, D.M.; Mishra, V.; Kumar, R.
|
| Quelle | Communications Earth & Environment |
| Erscheinungsjahr | 2026 |
| Department | CHS |
| Sprache | englisch |
| Topic | T5 Future Landscapes |
| Daten-/Softwarelinks | https://doi.org/10.1594/PANGAEA.909132 |
| Supplements | Supplement 1 Supplement 2 |
| Abstract | Synchronized
droughts threaten global food security, with concerns about increased
frequency and duration under climate change. However, their long-term
evolution and physical limits remain unknown. We analyze 61 drought
networks over 120 years (1901–2020) of Self Calibrating palmer drought
severity index (sc-PDSI) data, employing a suite of network
synchronization measures and empirical orthogonal functions to unravel
the physical drivers and limiters of drought synchrony. Our results show
that, contrary to claims that synchronized droughts could affect up to
one sixth of the global land mass, the maximum synchronized area
fluctuates between 1.84% and 6.5% of the total land mass. Although we
observe a strong dependence between drought onset and local crop
failures, global drought synchrony is shaped by a dichotomy: temperature
trends exacerbate it, while precipitation variability, modulated by sea
surface temperature oscillations, limits it. This suggests that
although drought hubs are increasing, large-scale synchronization across
multiple agricultural regions is less widespread than expected,
affecting global food security strategies. |
| dauerhafte UFZ-Verlinkung | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=31811 |
| Bhatia, U., Poonia, H., Tantary, D.M., Mishra, V., Kumar, R. (2026): Regional responses to oceanic variability constrain global drought synchrony Commun. Earth Environ. 10.1038/s43247-025-03111-5 |
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