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Fast and slow precipitation responses to individual climate forcers: A PDRMIP multimodel study

Publication ,  Journal Article
Samset, BH; Myhre, G; Forster, PM; Hodnebrog, ; Andrews, T; Faluvegi, G; Fläschner, D; Kasoar, M; Kharin, V; Kirkevåg, A; Lamarque, JF ...
Published in: Geophysical Research Letters
March 28, 2016

Precipitation is expected to respond differently to various drivers of anthropogenic climate change. We present the first results from the Precipitation Driver and Response Model Intercomparison Project (PDRMIP), where nine global climate models have perturbed CO2, CH4, black carbon, sulfate, and solar insolation. We divide the resulting changes to global mean and regional precipitation into fast responses that scale with changes in atmospheric absorption and slow responses scaling with surface temperature change. While the overall features are broadly similar between models, we find significant regional intermodel variability, especially over land. Black carbon stands out as a component that may cause significant model diversity in predicted precipitation change. Processes linked to atmospheric absorption are less consistently modeled than those linked to top-of-atmosphere radiative forcing. We identify a number of land regions where the model ensemble consistently predicts that fast precipitation responses to climate perturbations dominate over the slow, temperature-driven responses.

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Published In

Geophysical Research Letters

DOI

EISSN

1944-8007

ISSN

0094-8276

Publication Date

March 28, 2016

Volume

43

Issue

6

Start / End Page

2782 / 2791

Related Subject Headings

  • Meteorology & Atmospheric Sciences
 

Citation

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Samset, B. H., Myhre, G., Forster, P. M., Hodnebrog, ., Andrews, T., Faluvegi, G., … Voulgarakis, A. (2016). Fast and slow precipitation responses to individual climate forcers: A PDRMIP multimodel study. Geophysical Research Letters, 43(6), 2782–2791. https://doi.org/10.1002/2016GL068064
Samset, B. H., G. Myhre, P. M. Forster, P. M. Hodnebrog, T. Andrews, G. Faluvegi, D. Fläschner, et al. “Fast and slow precipitation responses to individual climate forcers: A PDRMIP multimodel study.” Geophysical Research Letters 43, no. 6 (March 28, 2016): 2782–91. https://doi.org/10.1002/2016GL068064.
Samset BH, Myhre G, Forster PM, Hodnebrog, Andrews T, Faluvegi G, et al. Fast and slow precipitation responses to individual climate forcers: A PDRMIP multimodel study. Geophysical Research Letters. 2016 Mar 28;43(6):2782–91.
Samset, B. H., et al. “Fast and slow precipitation responses to individual climate forcers: A PDRMIP multimodel study.” Geophysical Research Letters, vol. 43, no. 6, Mar. 2016, pp. 2782–91. Scopus, doi:10.1002/2016GL068064.
Samset BH, Myhre G, Forster PM, Hodnebrog, Andrews T, Faluvegi G, Fläschner D, Kasoar M, Kharin V, Kirkevåg A, Lamarque JF, Olivié D, Richardson T, Shindell D, Shine KP, Takemura T, Voulgarakis A. Fast and slow precipitation responses to individual climate forcers: A PDRMIP multimodel study. Geophysical Research Letters. 2016 Mar 28;43(6):2782–2791.
Journal cover image

Published In

Geophysical Research Letters

DOI

EISSN

1944-8007

ISSN

0094-8276

Publication Date

March 28, 2016

Volume

43

Issue

6

Start / End Page

2782 / 2791

Related Subject Headings

  • Meteorology & Atmospheric Sciences