Increased amplitude of atmospheric rivers and associated extreme precipitation in ultra-high-resolution greenhouse warming simulations

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

2 Scopus Citations
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Author(s)

  • Arjun Babu Nellikkattil
  • June-Yi Lee
  • Bin Guan
  • Axel Timmermann
  • Sun-Seon Lee
  • Danielle Lemmon

Detail(s)

Original languageEnglish
Article number313
Journal / PublicationCommunications Earth & Environment
Volume4
Issue number1
Online published6 Sept 2023
Publication statusPublished - 1 Dec 2023

Link(s)

Abstract

Atmospheric rivers play an integral role in the global water cycle, but predicting their future changes remains uncertain due to inter-model and inter-detection-method differences. Using ultra-high-resolution Community Earth System Model simulations and a novel detection algorithm based on geometric shape extraction, we quantify global changes in atmospheric rivers and the associated precipitation events in response to doubling and quadrupling of atmospheric CO2 concentrations. We find that, atmospheric rivers are projected to become more frequent and more likely to be associated with extreme precipitation events, increasing their contribution to global mean precipitation. While the water vapor transport within these structures follow Clausius-Clapeyron scaling, the changes in maximum precipitation intensity resemble other saturated atmospheric environments like tropical cyclone cores. The increased amplitude of atmospheric rivers and the associated increase in mean and extreme precipitation have important implications for future water management and adaptation policies. © The Author(s) 2023

Research Area(s)

Citation Format(s)

Increased amplitude of atmospheric rivers and associated extreme precipitation in ultra-high-resolution greenhouse warming simulations. / Nellikkattil, Arjun Babu; Lee, June-Yi; Guan, Bin et al.
In: Communications Earth & Environment, Vol. 4, No. 1, 313, 01.12.2023.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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