Metrics of the Hadley circulation strength and associated circulation trends

Pikovnik, Matic; Zaplotnik, Žiga; Boljka, Lina; Žagar, Nedjeljka

doi:https://doi.org/10.5194/wcd-3-625-2022

Articles | Volume 3, issue 2

https://doi.org/10.5194/wcd-3-625-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/wcd-3-625-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 3, issue 2

Research article

|

14 Jun 2022

Research article |

| 14 Jun 2022

Metrics of the Hadley circulation strength and associated circulation trends

Matic Pikovnik, Žiga Zaplotnik, Lina Boljka, and Nedjeljka Žagar

Data sets

Metrics of Hadley circulation strength M. Pikovnik and Ž. Zaplotnik https://doi.org/10.5281/zenodo.6525718

ERA5 hourly data on pressure levels from 1979 to present H. Hersbach, B. Bell, P. Berrisford, G. Biavati, A. Horányi, J. Muñoz Sabater, J. Nicolas, C. Peubey, R. Radu, I. Rozum, D. Schepers, A. Simmons, C. Soci, D. Dee, and J.-N. Thépaut https://doi.org/10.24381/cds.bd0915c6

Short summary

Potential future changes in the Hadley cells (HCs), either to their strength or their meridional extent, will profoundly impact the global distribution of precipitation. Therefore, to objectively evaluate and inter-compare past and future changes in the overall HC strength between different studies, a unified metric is required. The study proposes two new metrics, which alleviate the spatial inhomogeneities of the HC strength trend.