Cited by 318Climate Change and GeoengineeringClimate variability and modelsAtmospheric aerosols and clouds

The hydrological impact of geoengineering in the Geoengineering Model Intercomparison Project (GeoMIP)

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Tilmes, Simone, Fasullo, John, Lamarque, Jean‐Francois, Marsh, Daniel R., Mills, Michael, Alterskjær, Kari, Muri, Helene, Kristjánsson, Jón E. +19 more·2013·Journal of Geophysical Research Atmospheres

Abstract

The hydrological impact of enhancing Earth's albedo by solar radiation management is investigated using simulations from 12 Earth System models contributing to the Geoengineering Model Intercomparison Project (GeoMIP). We contrast an idealized experiment, G1, where the global mean radiative forcing is kept at preindustrial conditions by reducing insolation while the CO 2 concentration is quadrupled to a 4× CO 2 experiment. The reduction of evapotranspiration over land with instantaneously increasing CO 2 concentrations in both experiments largely contributes to an initial reduction in evaporation. A warming surface associated with the transient adjustment in 4× CO 2 generates an increase of global precipitation by around 6.9% with large zonal and regional changes in both directions, including a precipitation increase of 10% over Asia and a reduction of 7% for the North American summer monsoon. Reduced global evaporation persists in G1 with temperatures close to preindustrial conditions. Global precipitation is reduced by around 4.5%, and significant reductions occur over monsoonal land regions: East Asia (6%), South Africa (5%), North America (7%), and South America (6%). The general precipitation performance in models is discussed in comparison to observations. In contrast to the 4× CO 2 experiment, where the frequency of months with heavy precipitation intensity is increased by over 50% in comparison to the control, a reduction of up to 20% is simulated in G1. These changes in precipitation in both total amount and frequency of extremes point to a considerable weakening of the hydrological cycle in a geoengineered world.

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Authors
Tilmes, S., Fasullo, J., Lamarque, J., Marsh, D. R., Mills, M., Alterskjær, K., Muri, H., Kristjánsson, J. E., Boucher, O., Schulz, M., Cole, J. N. S., Curry, C. L., Jones, A., Haywood, J., Irvine, P. J., Ji, D., Moore, J. C., Karam, D. B., Kravitz, B., Rasch, P. J., Singh, B., Yoon, J., Niemeier, U., Schmidt, H., Robock, A., Yang, S., & Watanabe, S.
Affiliations
  • NSF National Center for Atmospheric Research (US)
  • National Center for Atmospheric Research Boulder Colorado USA
  • University of Oslo (NO)
  • Laboratoire de Météorologie Dynamique IPSL, CNRS/UPMC Paris France
  • Centre National de la Recherche Scientifique (FR)
  • Environment and Climate Change Canada (CA)
  • University of Victoria (CA)
  • Met Office (GB)
  • Research Institute for Sustainability at GFZ (DE)
  • Beijing Normal University (CN)
  • Pacific Northwest National Laboratory (US)
  • Max Planck Institute for Meteorology (DE)
  • Rutgers, The State University of New Jersey (US)
  • Danish Meteorological Institute (DK)
  • Japan Agency for Marine-Earth Science and Technology (JP)
Corresponding author
Tilmes, Simone
Venue
Journal of Geophysical Research Atmospheres
Published
2013-10-15
Volume
118
Issue
19
Pages
11036-11058
ISSN
  • 0148-0227 (ISSN-L)
  • 2169-897X
  • 2169-8996
OpenAlex
W2128861178
Cited by
318
References
85
Citations by year
2026: 16 · 2025: 24 · 2024: 24 · 2023: 33 · 2022: 35 · 2021: 30 · 2020: 23 · 2019: 14 · 2018: 35 · 2017: 17 · 2016: 26 · 2015: 15 · 2014: 20 · 2013: 5
FWCI
16.78
Type
journal article
Language
en
Open access
Locations
  • Journal of Geophysical Research Atmospheres (publishedVersion)
  • HAL (submittedVersion, other-oa)
  • Figshare (submittedVersion)
  • Publication Database GFZ (GFZ German Research Centre for Geosciences) (submittedVersion)
  • Publication Database IASS (Institute for Advanced Sustainability Studies (IASS)) (submittedVersion, other-oa)
  • LaCRIS (University of Lapland) (submittedVersion)
  • Open Research Exeter (University of Exeter) (submittedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion, other-oa)
  • NORA - Norwegian Open Research Archives (submittedVersion, other-oa)
Funders
  • National Science Foundation (DEAC02-05CH11231, FP7/2007-2013, 1157525)
  • U.S. Department of Energy (-AC02-05CH11231, 05CH11231, DE AC02 05CH11231, Contract DE-AC02-05CH11231., DE-AC02-)
  • National Aeronautics and Space Administration (NNG06GB91G, DE-AC02-05CH11231)
  • National Center for Atmospheric Research
  • Fund for Innovative Climate and Energy Research
  • National Energy Research Scientific Computing Center (DE–AC02–05CH11231, 05CH11231, AC02-05CH11231)
  • Department for Environment, Food and Rural Affairs, UK Government (GA01101)
  • European Commission (226567, 306395)
  • Met Office (GA01101)
  • Ministry of Education, Culture, Sports, Science and Technology (DE-AC02-05CH11231)
  • Beijing Normal University
  • Norges Forskningsråd (DE-AC02-05CH11231)
  • Office of Science (Contract DE-AC02-05CH11231, DEAC02–05CH11231, AC02-05CH11231, DE-AC02)
  • Goddard Space Flight Center
  • Seventh Framework Programme (FP7/2007, FP7/2007 - 2013, 2007‐2013)
  • Centrum fÖr Personcentrerad Vård
Topics
  • Physical Sciences › Environmental Science › Global and Planetary Change › Climate Change and Geoengineering
  • Physical Sciences › Environmental Science › Global and Planetary Change › Climate variability and models
  • Physical Sciences › Environmental Science › Global and Planetary Change › Atmospheric aerosols and clouds
Keywords
solar radiation management, geoengineering, water cycle, precipitation change, evapotranspiration, CO2 quadrupling, radiative forcing, monsoon weakening, heavy rainfall, Earth system models, GeoMIP

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