Ozone instantaneous longwave radiative effect from IASI and TES observations
| Autor: | Doniki, Stamatia, Hurtmans, Daniel, Clarisse, Lieven, Clerbaux, Cathy, Coheur, Pierre-François, Worden, Helen M., Bowman, Kevin W., Lamarque, Jean-François, Conley, Andrew, Shindell, D.rewT., Greg, Faluvegi |
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| Přispěvatelé: | Spectroscopie de l'atmosphère, Service de Chimie Quantique et Photophysique, Université libre de Bruxelles (ULB), TROPO - LATMOS, Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Atmospheric Chemistry Observations and Modeling Laboratory (ACOML), National Center for Atmospheric Research [Boulder] (NCAR), Jet Propulsion Laboratory (JPL), NASA-California Institute of Technology (CALTECH), Nicholas School of the Environment, Duke University [Durham], NASA Goddard Institute for Space Studies (GISS), NASA Goddard Space Flight Center (GSFC), Cardon, Catherine |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | 4th IASI International Conference 4th IASI International Conference, Apr 2016, Antibes Juan-Les-Pins, France |
| Popis: | International audience; Ozone is one of the most important greenhouse gases in terms of radiative forcing as a result ofincreases in its precursor emissions since pre-industrial times. Until recently, the ozone radiativeforcing calculations were entirely model based, exhibiting high uncertainties and a large spread inmodel values, as shown in the IPCC AR5. Satellite sounders operating in the infrared now offer thepossibility to infer directly the longwave radiative effect (LWRE) of ozone in the 9.6 μm band, withrespect to its vertical distribution, allowing to better constrain model estimates of the ozone radiativeforcing and its future predictions. In this presentation we calculate the ozone LWRE by exploiting themeasurements of IASI/MetOp-A. We briefly describe a new method for calculating the ozone LWREand the flux sensitivity with respect to the ozone profile, known as instantaneous radiative kernel(IRK), and we demonstrate that it is more accurate than previous existing methods by up to 30%. Wealso show a first comparison with similar quantities derived from measurements of TES/Aura andreport a very good agreement overall. Finally, we present the application of such calculation, made atunprecedented resolution and sampling with IASI, in climate models and the ability of assessing thebiases of the latter in terms of radiative effect. |
| Databáze: | OpenAIRE |
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