Quantifying the importance of rapid adjustments for global precipitation changes
File(s)Myhre_et_al-2018-Geophysical_Research_Letters.pdf (400.06 KB)
Published version
Author(s)
Type
Journal Article
Abstract
Different climate drivers influence precipitation in different ways. Here we use radiative kernels to understand the influence of rapid adjustment processes on precipitation in climate models. Rapid adjustments are generally triggered by the initial heating or cooling of the atmosphere from an external climate driver. For precipitation changes, rapid adjustments due to changes in temperature, water vapor, and clouds are most important. In this study we have investigated five climate drivers (CO2, CH4, solar irradiance, black carbon, and sulfate aerosols). The fast precipitation responses to a doubling of CO2 and a 10-fold increase in black carbon are found to be similar, despite very different instantaneous changes in the radiative cooling, individual rapid adjustments, and sensible heating. The model diversity in rapid adjustments is smaller for the experiment involving an increase in the solar irradiance compared to the other climate driver perturbations, and this is also seen in the precipitation changes.
Date Issued
2018-10-28
Date Acceptance
2018-10-12
Citation
Geophysical Research Letters, 2018, 20 (20), pp.11399-11405
ISSN
0094-8276
Publisher
Wiley
Start Page
11399
End Page
11405
Journal / Book Title
Geophysical Research Letters
Volume
20
Issue
20
Copyright Statement
©2018 The Authors. This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial‐NoDerivs License (https://creativecommons.org/licenses/by-nc-nd/4.0/), which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.
Subjects
MD Multidisciplinary
Meteorology & Atmospheric Sciences
Publication Status
Published
Date Publish Online
2018-10-19