Sensible heat has significantly affected the global hydrological cycle over the historical period

Nature Communications
Gunnar MyhreA Voulgarakis

Abstract

Globally, latent heating associated with a change in precipitation is balanced by changes to atmospheric radiative cooling and sensible heat fluxes. Both components can be altered by climate forcing mechanisms and through climate feedbacks, but the impacts of climate forcing and feedbacks on sensible heat fluxes have received much less attention. Here we show, using a range of climate modelling results, that changes in sensible heat are the dominant contributor to the present global-mean precipitation change since preindustrial time, because the radiative impact of forcings and feedbacks approximately compensate. The model results show a dissimilar influence on sensible heat and precipitation from various drivers of climate change. Due to its strong atmospheric absorption, black carbon is found to influence the sensible heat very differently compared to other aerosols and greenhouse gases. Our results indicate that this is likely caused by differences in the impact on the lower tropospheric stability.

References

Sep 13, 2002·Nature·Myles R Allen, William J Ingram
Aug 25, 2016·Proceedings of the National Academy of Sciences of the United States of America·Olivier BoucherRong Wang
Oct 30, 2016·Proceedings of the National Academy of Sciences of the United States of America·Eric M WilcoxVeerabhadran Ramanathan
Jan 24, 2017·International Journal of Climatology : a Journal of the Royal Meteorological Society·Andreas F Prein, Andreas Gobiet
Nov 16, 2017·Journal of Geophysical Research. Atmospheres : JGR·Camilla Weum StjernApostolos Voulgarakis
Jun 1, 2017·Bulletin of the American Meteorological Society·G MyhreF Zwiers

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Citations

Apr 5, 2020·Annals of the New York Academy of Sciences·Richard P AllanOlga Zolina
Feb 19, 2019·Geophysical Research Letters·G MyhreD Watson-Parris

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Software Mentioned

SOLAR
GISS ModelE
SPRINTARS
FEIDE
PDRMIP
IPCC
NorESM
HadGEM3

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