README -- Describes contents of HEMCO/CHLA/v2014-07/README 13 Mar 2015 GEOS-Chem Support Team geos-chem-support@g.harvard.edu Files: =============================================================================== Chl_2003.geos.1x1.nc -- Chlorophyl- A concentrations from Modis Resolution : GEOS-Chem 1 x 1 grid (360 x 181 boxes) Units : kg m-3 Timestamps : 2003/01 thru 2003/12 Compression : Level 1 (e.g. nccopy -d1) References: =============================================================================== Behrenfeld, M.J., P.G. Falkowski, Photosynthetic rates derived from satellite- based chlorophyll concentration. Limnol. Oceanogr., 42(1), 1-20, 1997. de Boyer Montegut, C., G. Madec, A.S. Fischer, A. Lazar, D. Iudicone, Mixed layer depth over the global ocean: An examination of profile data and a profile-based climatology. J. Geophys. Res. [Oceans], 109, C12003, doi:10.1029/2004JC002378, 2004. Mao, J., D.J. Jacob, M.J. Evans, J.R. Olson, X. Ren, W.H. Brune, J.M.S. Clair, J.D. Crounse, K.M. Spencer, M.R. Beaver, P.O. Wennberg, M.J. Cubison, J.L. Jimenez, A. Fried, P. Weibring, J.G. Walega, S.R. Hall, A.J. Weinheimer, R.C. Cohen, G. Chen, J.H. Crawford, L. Jaegle, J.A. Fisher, R.M. Yantosca, P. Le Sager, and C. Carouge, Chemistry of hydrogen oxide radicals (HOx) in the Arctic troposphere in spring, Atmos. Chem. Phys., 10, 5823-5838, Mintz, Y., and G. K. Walker, Global fields of soil moisture and land surface evapotranspiration derived from observed precipitation and surface air temperature, J. Appl. Meteorol., 32(8), 1305-1334, 1993. Parrella, J. P., M. J. Evans, D. J. Jacob, Q. Liang, L. J. Mickley, B. Miller, J. A. Pyle, and X. Yang, Effect of bromine chemistry on natural tropospheric ozone: improved simulation of observations from the turn of the 20th century, (in preparation). Selin, N.E., D.J. Jacob, R.M. Yantosca, S. Strode, L. Jaegl, and E.M. Sunderland, Global 3-D land-ocean-atmosphere model for mercury: present-day vs. pre-industrial cycles and anthropogenic enrichment factors for deposition, Global Biogeochemical Cycles, 22, GB2011, doi:10.1029/2007GB003040, 2008. Selin, N.E., D.J. Jacob, R.J. Park, R.M. Yantosca, S. Strode, L. Jaegl and D. Jaffe, Chemical cycling and deposition of atmospheric mercury: Global constraints from observations, Journal of Geophysical Research-Atmopsheres, 112, D02308, doi:10.1029/2006JD007450, 2007. Strahan, S. E., Duncan, B. N., and Hoor, P.: Observationally derived transport diagnostics for the lowermost stratosphere and their application to the GMI chemistry and transport model, Atmos. Chem. Phys., 7, 24352445, doi:10.5194/acp-7-2435-2007, 2007. Selin, N.E., D.J. Jacob, R.M. Yantosca, S. Strode, L. Jaegl, and E.M. Sunderland, Global 3-D land-ocean-atmosphere model for mercury: present-day vs. pre-industrial cycles and anthropogenic enrichment factors for deposition, Global Biogeochemical Cycles, 22, GB2011, doi:10.1029/2007GB003040, 2008. Selin, N.E., D.J. Jacob, R.J. Park, R.M. Yantosca, S. Strode, L. Jaegl and D. Jaffe, Chemical cycling and deposition of atmospheric mercury: Global constraints from observations, Journal of Geophysical Research-Atmopsheres, 112, D02308, doi:10.1029/2006JD007450, 2007. Strahan, S. E., Duncan, B. N., and Hoor, P.: Observationally derived transport diagnostics for the lowermost stratosphere and their application to the GMI chemistry and transport model, Atmos. Chem. Phys., 7, 24352445, doi:10.5194/acp-7-2435-2007, 2007. Yang, X., Cox, R., Warwick, N., Pyle, J., Carver, G., O'Connor, F., and Savage, N.: Tropospheric bromine chemistry and its impacts on ozone: A model study, J. Geophys. Res., 110, D23311, doi:10.1029/2005JD006244, 2005. How the netCDF file was created: =============================================================================== Christoph Keller used the GAMAP routine BPCH2COARDS to convert the original binary punch file to netCDF. Then the following operations were done in order to bring the file into better COARDS compliance. cdo remapdis,geos.1x1.grid Chl_2003.geos.4x5.nc Chl_2003.geos.1x1.nc "Tue Mar 19 13:57:02 2013: cdo mergetime Chl_2003.20030101.geos.4x5.nc Chl_2003.20030201.geos.4x5.nc Chl_2003.20030301.geos.4x5.nc Chl_2003.20030401.geos.4x5.nc Chl_2003.20030501.geos.4x5.nc Chl_2003.20030601.geos.4x5.nc Chl_2003.20030701.geos.4x5.nc Chl_2003.20030801.geos.4x5.nc Chl_2003.20030901.geos.4x5.nc Chl_2003.20031001.geos.4x5.nc Chl_2003.20031101.geos.4x5.nc Chl_2003.20031201.geos.4x5.nc Chl_2003.geos.4x5.nc" ; data: ncatted -a End_Date,global,o,i,20040101 Chl_2003.geos.1x1.nc ncatted -a scale_factor,CHLA,o,f,1.0 Chl_2003.geos.1x1.nc ncatted -a add_offset,CHLA,o,f,0.0 Chl_2003.geos.1x1.nc ncatted -a _FillValue,CHLA,o,f,1e30 Chl_2003.geos.1x1.nc ncatted -a missing_value,CHLA,o,f,1e30 Chl_2003.geos.1x1.nc ncatted -a units,CHLA,o,c,kg/m3 out.nc ncap2 -v -s CHLA=CHLA/1000000.0f Chl_2003.geos.1x1.nc out.nc