Cited by 34Climate variability and modelsAtmospheric aerosols and cloudsGeology and Paleoclimatology Research

Can thin cirrus clouds in the tropics provide a solution to the faint young Sun paradox?

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Rondanelli, Roberto, Lindzen, Richard S.·2010·Journal of Geophysical Research: Atmospheres

Abstract

In this paper we present radiative‐convective simulations to test the idea that tropical cirrus clouds, acting as a negative feedback on climate, can provide a solution to the faint young Sun paradox. We find that global mean surface temperatures above freezing can indeed be found for luminosities larger than about 0.8 (corresponding to ∼2.9 Ga and nearly complete tropical cirrus coverage). For luminosities smaller than 0.8, even though global mean surface temperatures are below freezing, tropical mean temperatures are still above freezing, indicating the possibility of a partially ice‐free Earth for the Early Archean. We discuss possible mechanisms for the functioning of this negative feedback. While it is feasible for tropical cirrus to completely eliminate the paradox, it is similarly possible for tropical cirrus to reduce the amounts of other greenhouse gases needed for solving the paradox and therefore easing the constraints on CO 2 and CH 4 that appear to be in disagreement with geological evidence.

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  • Some FYS hypotheses invoke clouds: that the Archean Bond albedo was low because of substantially different cloud cover or that abundant high-altitude cirrus clouds warmed early Earth.

    “Some FYS hypotheses invoke clouds: that the Archean Bond albedo was low because of substantially different cloud cover (170, 209) or that abundant high-altitude cirrus clouds warmed early Earth (210).”

    From The Archean atmosphere (2020) · cites this paper as [210]

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Research works printed but not linked: 9

  1. Lindzen, R., and B. Farrell (1980), The role of polar regions in global climate, and a new parameterization of global heat transport, Mon. Weather Rev., 108(12), 2064 -2079.
  2. Lindzen, R. S., M.-D. Chou, and A. Y. Hou (2001), Does the Earth have an adaptive infrared iris?, Bull. Am. Meteorol. Soc., 82(3), 417 -432.
  3. Manabe, S., and R. Strickler (1964), Thermal equilibrium of the atmosphere with a convective adjustment, J. Atmos. Sci., 21(4), 361 -385.
  4. Manabe, S., and R. Wetherald (1967), Thermal equilibrium of the atmo- sphere with a given distribution of relative humidity, J. Atmos. Sci., 24(3), 241 -259.
  5. Pavlov, A., M. Hurtgen, J. Kasting, and M. Arthur (2003), Methane-rich Proterozoic atmosphere?, Geology, 31(1), 87 -90.
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  8. Wang, W., W. Rossow, M. Yao, and M. Wolfson (1981), Climate sensitivity of a one-dimensional radiative-convective model with cloud feedback, J. Atmos. Sci., 38(6), 1167 -1178.
  9. Massachusetts Ave., Cambridge, MA 02139, USA. (rrondane@mit.edu)

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Authors
Rondanelli, R., & Lindzen, R. S.
Affiliations
Massachusetts Institute of Technology (US)
Venue
Journal of Geophysical Research: Atmospheres
Published
2010-01-26
Volume
115
Issue
D2
ISSN
0148-0227 (ISSN-L)
OpenAlex
W2158118143
Cited by
34
References
80
Citations by year
2026: 1 · 2021: 1 · 2020: 5 · 2019: 1 · 2018: 1 · 2017: 3 · 2014: 5 · 2013: 8 · 2012: 4
FWCI
4.61
Type
journal article
Language
en
Open access
Locations
  • Journal of Geophysical Research Atmospheres (publishedVersion)
  • Universidad de Chile (submittedVersion)
Funders
U.S. Department of Energy
Topics
  • Physical Sciences › Environmental Science › Global and Planetary Change › Climate variability and models
  • Physical Sciences › Environmental Science › Global and Planetary Change › Atmospheric aerosols and clouds
  • Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Geology and Paleoclimatology Research
Keywords
faint young Sun paradox, tropical cirrus clouds, greenhouse gases, carbon dioxide, methane, paleoclimate

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