README -- describes contents of lightning_NOx_201408 11 Aug 2014 GEOS-Chem Support Team geos-chem-support@g.harvard.edu Summary: =============================================================================== In GEOS-Chem v9-01-01, the following updates were made that impact the emissions of lightning NOx: (1) Bug fix for incorrect cloud-top-height determination (2) Addition of updated vertical release profiles (cf. Ott et al 2010) (3) Removal of obsolete options from the source code (lightning_nox_mod.f) For detailed information about these updates, please see the document prepared by Lee Murray (ltmurray@seas.harvard.edu): L.T. Murray, Changes affecting lightning NOx emissions in GEOS-Chem v9-01-01, January 2011, (ltmurray@post.harvard.edu) http://acmg.seas.harvard.edu/geos/wiki_docs/emissions/LNOx-v9-01-01.Release.Notes.pdf Please also see this wiki post about GEOS-5.2.0 and OTD/LIS redistribution: http://wiki.seas.harvard.edu/geos-chem/index.php/Lightning_NOx_emissions#BETA_values_for_North_America_for_years_after_2008 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%% WHAT'S NEW IN DIRECTORY lightning_NOx_201408: %%% %%% %%% %%% This directory preserves all existing files in lightning_NOx_201311, %%% %%% with the exception of: %%% %%% %%% %%% (1) File "OTD-LIS-Local-Redist.CTH.v5.geosfp.025x03125.NA" %%% %%% (dated 2013-11-14) has been replaced with an updated version from %%% %%% Lee Murray (dated 2014-07-25). The new file was constrained with %%% %%% simulated climatology for April 2012 - May 2014. %%% %%% %%% %%% (2) File "OTD-LIS-Local-Redist.CTH.v5.geosfp.025x03125.NA.v20141210" %%% %%% has been added. The new file was constrained with simulated %%% %%% climatology for Apr 2012 - Oct 2014. %%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% File list: =============================================================================== README -- this file OTD-LIS-Local-Redist.CTH.v5.geosfp.025x03125.NA -- OTD/LIS local redistribution files for GEOS-FP meteorology on the 0.25 x 0.3125 NA nested grid. -- Data has been constrained with simulated climatology for April 2012 - May 2014. OTD-LIS-Local-Redist.CTH.v5.geosfp.025x03125.NA.v20141210 -- OTD/LIS local redistribution files for GEOS-FP meteorology on the 0.25 x 0.3125 NA nested grid. -- Data has been constrained with simulated climatology for April 2012 - Oct 2014. light_dist.ott2010.dat -- File containing vertical probability functions from Ott et al 2010) References: =============================================================================== Allen, D.J., and K.E. Pickering, Evaluation of lightning flash rate parameterizations for use in a global chemical transport model, J Geophys Res, 107(D23), 4711, 2002 Allen D., K.E. Pickering, B. Duncan, M. Damon, Impact of lightning NO emissions on North American photochemistry as determined using the Global Modeling Initiative (GMI) model, J Geophys Res, 115, D22301, 2010 Ott L.E., K.E. Pickering, G.L. Stenchikov, D.J. Allen, A.J. DeCaria, B. Ridley, R.-F. Lin, S. Lang, W.-K. Tao, Production of lightning NOx and its vertical distribution calculated from three-dimensional cloud-scale chemical transport model simulations, J Geophys Res, 115, D04301, 2010 L.T. Murray, Changes affecting lightning NOx emissions in GEOS-Chem v9-01-01, January 2011, (ltmurray@post.harvard.edu) Pickering K.E., Y. Wang, W.-K. Tao, C. Price, J.-F. Müller, Vertical distributions of lightning NOx for use in regional and global chemical transport models, J Geophys Res, 103(D23), 31203-31216, 1998 Murray, L.T., J.A. Logan, D.J. Jacob, and R.C. Hudman, Spatial and interannual variability in lightning constrained by LIS/OTD satellite data for 1998-2006: implications for tropospheric ozone and OH, in preparation Price, C., and D.H. Rind, A simple lightning parameterization for calculating global lightning distributions, J Geophys Res, 97(D9), 9919-9933, 1992 Price, C., and D.H. Rind, What determines the cloud-to-ground lightning fraction in thunderstorms, Geophys Res Lett, 20(6), 463-466, 1993 Price, C., and D.H. Rind, Modeling global lightning distributions in a general circulation model, Mon Weather Rev, 122(8), 1930-1939, 1994 Sauvage B., R.V. Martin, A. van Donkelaar, X. Liu, K. Chance, L. Jaeglé, P. I. Palmer, S. Wu, and T.-M. Fu, Remote sensed and in situ constraints on processes affecting tropical tropospheric ozone. Atmos Chem Phys, 7, 815-838, 2007