1. Evaluation of ACCMIP outgoing longwave radiation from tropospheric ozone using TES satellite observations
- Author
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Bowman, Kevin, Shindell, Drew T., Worden, Helen, Lamarque, J. F., Young, Paul, Stevenson, D. S., Qu, Z., de la Torre, M, Bergmann, D., Cameron-Smith, Philip, Collins, William J., Doherty, R. M., Dalsoren, Stig B, Eyring, V., Faluvegi, G., Folberth, G., Ghan, S, Horowitz, L. W., Josse, B, Lee, Yunha H, MacKenzie, Ian A., Myhre, G, Nagashima, T, Naik, Vaishali, Plummer, David A, Skeie, R, Strode, Sarah, Sudo, K., Szopa, Sophie, Voulgarakis, A., Zeng, Guang, Kulawik, S, Aghedo, A, Worden, J, Jet Propulsion Laboratory (JPL), NASA-California Institute of Technology (CALTECH), NASA Goddard Institute for Space Studies (GISS), NASA Goddard Space Flight Center (GSFC), National Center for Atmospheric Research [Boulder] (NCAR), Lancaster Environment Centre, Lancaster University, University of Edinburgh, Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Modélisation du climat (CLIM), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), and Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)
- Subjects
Atmospheric Science ,Ozone ,010504 meteorology & atmospheric sciences ,0211 other engineering and technologies ,02 engineering and technology ,Atmospheric sciences ,01 natural sciences ,7. Clean energy ,lcsh:Chemistry ,Troposphere ,CARBON-DIOXIDE ,chemistry.chemical_compound ,SOUTHERN AFRICA ,PREINDUSTRIAL TIMES ,Radiative transfer ,Tropospheric ozone ,[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment ,ATMOSPHERIC CHEMISTRY ,ComputingMilieux_MISCELLANEOUS ,021101 geological & geomatics engineering ,0105 earth and related environmental sciences ,[SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere ,CHEMISTRY-CLIMATE MODELS ,Radiative forcing ,lcsh:QC1-999 ,NADIR RETRIEVALS ,TROPICAL TROPOSPHERE ,Tropospheric Emission Spectrometer ,lcsh:QD1-999 ,chemistry ,13. Climate action ,Climatology ,Atmospheric chemistry ,Environmental science ,Outgoing longwave radiation ,ZONAL STRUCTURE ,BIOMASS BURNING EMISSIONS ,INTERCOMPARISON PROJECT ACCMIP ,lcsh:Physics - Abstract
We use simultaneous observations of tropospheric ozone and outgoing longwave radiation (OLR) sensitivity to tropospheric ozone from the Tropospheric Emission Spectrometer (TES) to evaluate model tropospheric ozone and its effect on OLR simulated by a suite of chemistry-climate models that participated in the Atmospheric Chemistry and Climate Model Intercomparison Project (ACCMIP). The ensemble mean of ACCMIP models show a persistent but modest tropospheric ozone low bias (5–20 ppb) in the Southern Hemisphere (SH) and modest high bias (5–10 ppb) in the Northern Hemisphere (NH) relative to TES ozone for 2005–2010. These ozone biases have a significant impact on the OLR. Using TES instantaneous radiative kernels (IRK), we show that the ACCMIP ensemble mean tropospheric ozone low bias leads up to 120 mW m−2 OLR high bias locally but zonally compensating errors reduce the global OLR high bias to 39 ± 41 m Wm−2 relative to TES data. We show that there is a correlation (R2 = 0.59) between the magnitude of the ACCMIP OLR bias and the deviation of the ACCMIP preindustrial to present day (1750–2010) ozone radiative forcing (RF) from the ensemble ozone RF mean. However, this correlation is driven primarily by models whose absolute OLR bias from tropospheric ozone exceeds 100 m Wm−2. Removing these models leads to a mean ozone radiative forcing of 394 ± 42 m Wm−2. The mean is about the same and the standard deviation is about 30% lower than an ensemble ozone RF of 384 ± 60 m Wm−2 derived from 14 of the 16 ACCMIP models reported in a companion ACCMIP study. These results point towards a profitable direction of combining satellite observations and chemistry-climate model simulations to reduce uncertainty in ozone radiative forcing.
- Published
- 2013
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