Qing He
Impact of the North Sea–Caspian pattern on meteorological drought and vegetation response over diverging environmental systems in western Eurasia
He, Qing; Xu, Bolin; Dieppois, Bastien; Yetemen, Omer; Lutfi Sen, Omer; Klaus, Julian; Schoppach, Remy; Çağlar, Ferat; Fan, Ping Yu; Chen, Liang; Danaila, Luminita; Massei, Nicolas; Chun, Kwok
Authors
Bolin Xu
Bastien Dieppois
Omer Yetemen
Omer Lutfi Sen
Julian Klaus
Remy Schoppach
Ferat Çağlar
Ping Yu Fan
Liang Chen
Luminita Danaila
Nicolas Massei
Dr Kwok Chun Kwok.Chun@uwe.ac.uk
Lecturer in Environmental Managment
Abstract
Emerging drought stress on vegetation over western Eurasia is linked to varying teleconnection patterns. The North Sea–Caspian Pattern (NCP) is a relatively less studied Eurasian teleconnection pattern, which has a role on drought conditions and the consequence of changing conditions on vegetation. Between 1981 and 2015, we found that the Standardized Precipitation Index (SPI) and the Normalized Difference Vegetation Index (NDVI) have different trend patterns over various parts of western Eurasia. Specifically, the vegetation greenness is linked with wetter conditions over Scandinavia, and vegetation cover decreases over a drying central Asia. However, western Russia and Franceare paradoxically becoming greener under drier conditions. Using the Budyko framework, such paradoxical patterns are found in energy-limited environmental systems, where vegetation growth is primarily promoted by warmer temperatures. While most studies focused on the impacts of the North Atlantic Oscillation (NAO), we test whether the NCP explains better the variability of meteorological drought and vegetation response over western Eurasia. We hypothesised that the positive phases of the NCP are correlated to high pressure anomalies over the North Sea, which can be associated with weakening onshore moisture advection, leading to warmer and dryness conditions. These conditions are driving vegetation greening, as western Eurasia is mainly energy limited. However, we show that as the climate is warming along with the teleconnection impacts, the future ecosystem over western Eurasia will be transferred from energy-limited to water-limited systems. This suggests that the observed vegetation greening over past three decades is unlikely to sustain in the future.
Citation
He, Q., Xu, B., Dieppois, B., Yetemen, O., Lutfi Sen, O., Klaus, J., …Chun, K. (2022). Impact of the North Sea–Caspian pattern on meteorological drought and vegetation response over diverging environmental systems in western Eurasia. Ecohydrology, 15(5), e2446. https://doi.org/10.1002/eco.2446
Journal Article Type | Article |
---|---|
Acceptance Date | Jun 9, 2022 |
Online Publication Date | Jun 14, 2022 |
Publication Date | Jul 27, 2022 |
Deposit Date | Jun 15, 2022 |
Publicly Available Date | Jun 16, 2022 |
Journal | Ecohydrology |
Print ISSN | 1936-0584 |
Electronic ISSN | 1936-0592 |
Publisher | Wiley |
Peer Reviewed | Peer Reviewed |
Volume | 15 |
Issue | 5 |
Pages | e2446 |
Series Title | Special Issue: Ecohydrological Interactions during Drought |
DOI | https://doi.org/10.1002/eco.2446 |
Keywords | Western Eurasia, North Sea-Caspian Pattern (NCP), drought conditions, Standardized Precipitation Index (SPI), Normalized Difference Vegetation Index (NDVI), Budyko framework, Earth-Surface Processes, Ecology, Aquatic Science, Ecology, Evolution, Behavior |
Public URL | https://uwe-repository.worktribe.com/output/9643773 |
Publisher URL | https://onlinelibrary.wiley.com/doi/10.1002/eco.2446 |
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Impact of the North-Sea Caspian pattern on meteorological drought and vegetation response over diverging environmental systems in Western Eurasia
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Impact of the North Sea–Caspian pattern on meteorological drought and vegetation response over diverging environmental systems in western Eurasia
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This is an open access article under the terms of theCreative Commons AttributionLicense, which permits use, distribution and reproduction in any medium,provided the original work is properly cited.© 2022 The Authors.Ecohydrologypublished by John Wiley & Sons Ltd.
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