Shanghai Meteorological Media Center

Shanghai, China

Shanghai Meteorological Media Center

Shanghai, China
SEARCH FILTERS
Time filter
Source Type

Zhang H.,National Climate Center | Wu J.,Shanghai Meteorological Media Center | Lu P.,National Climate Center | Lu P.,Chinese Academy of Meteorological Sciences
Journal of Quantitative Spectroscopy and Radiative Transfer | Year: 2011

We developed a new radiation parameterization of hydrofluorocarbons (HFCs), using the correlated k-distribution method and the high-resolution transmission molecular absorption (HITRAN) 2004 database. We examined the instantaneous and stratospheric adjusted radiative efficiencies of HFCs for clear-sky and all-sky conditions. We also calculated the radiative forcing of HFCs from preindustrial times to the present and for future scenarios given by the Intergovernmental Panel on Climate Change Special Report on Emission Scenarios (SRES, in short). Global warming potential and global temperature potential were then examined and compared on the basis of the calculated radiative efficiencies. Finally, we discuss surface temperature changes due to various HFC emissions. © 2010 Elsevier Ltd.


Zhang H.,National Climate Center | Wu J.,National Climate Center | Wu J.,Shanghai Meteorological Media Center | Shen Z.,National Climate Center | Shen Z.,Shanghai Climate Center
Science China Earth Sciences | Year: 2011

We developed two radiation parameterizations with different resolutions (17-band and 998-band) for perfluorocarbons (PFCs) and sulfur hexafluoride (SF6) using the updated High-resolution Transmission Molecular Absorption (HITRAN) 2004 database and the correlated k-distribution method. We analyzed the impacts of the two radiation schemes on heating rates. Then we studied their instantaneous radiative efficiency, stratospheric adjusted radiative efficiency, global warming potential (GWP), and global temperature potential (GTP), for both clear- and all-sky conditions using a high-resolution radiation scheme. We found that the stratosphere-adjusted radiative efficiencies of C2F6, CF4, and SF6 for the whole sky were 0.346, 0.098, and 0.680 W m-2 ppbv-1, respectively. Radiative forcing from the industrial revolution to 2005 was 0.001, 0.007, and 0.004 W m-2, respectively; and was predicted to rise to 0.008, 0.036, and 0.037 W m-2, respectively, by 2100, according to emission scenarios provided by the IPCC. The GWPs of C2F6, CF4, and SF6 are 17035, 7597, and 31298, respectively, for a time horizon of 100 years relative to CO2. Their GTPs of pulse and sustained emissions, GTPP and GTPS, are 22468, 10052, and 40935 and 16498, 7355, and 30341, respectively, for a 100-year time horizon. © 2011 Science China Press and Springer-Verlag Berlin Heidelberg.

Loading Shanghai Meteorological Media Center collaborators
Loading Shanghai Meteorological Media Center collaborators