GEWEX-RFA Data Set Description Before attempting to submit data, please read "How to Participate" (http://eosweb.larc.nasa.gov/GEWEX-RFA/documents/how_to_participate.html) and the "File Convention" document (http://eosweb.larc.nasa.gov/GEWEX-RFA/documents/data_format.html) for detailed instructions on the data submission process. Please maintain a copy of this form for each data product (defined by _ as in the "File Conventions" document) you submit to GEWEX-RFA, and submit an updated copy of the file with EACH upload. This file will serve as the documentation for the entire data product within the assessment effort. ------------------------------------------------------------------------ Project Title: GEWEX-RFA ------------------------------------------------------------------------ Data product name: ISCCP-FD_Ed010 1) Contact for scientific questions about data Name: Yuanchong Zhang Address: 2880 Broadway, RM 320-B, New York, NY 10025 Telephone: 212-678-5514 E-mail address: yzhang@giss.nasa.gov URL: http://isccp.giss.nasa.gov/projects/fc_announ.html 2) What is the name of the original archived data set from which this GEWEX-RFA subset was produced? ISCCP-FD 3) Is the original archived data set currently available from another data center or web site? No. If so, please list addresses or URLs: 4) Brief data description: A reference or URL for the complete original archived data set documentation, followed by a brief summary of features of particular relevance to the RFA submission (such as gap filling method), is the preferred approach. (Items of interest: input data streams, name of algorithm used to produce data, start and end time of data, gaps in spatial or temporal coverage, and data quality issues, etc.). Main reference: Zhang, Y-C., W. B. Rossow, A. A. Lacis, V. Oinas, and M. I. Mishchenko (2004), Calculation of radiative fluxes from the surface to top of atmosphere based on ISCCP and other global data sets: Refinements of the radiative transfer model and the input data, J. Geophys. Res., 109, D19105, doi:10.1029/2003JD004457. URL: http://isccp.giss.nasa.gov/projects/fc_announ.html Brief summary: ISCCP-FD is a 21.5-year (with continuous coverage for July 1983 - December 2004) fully-global radiative flux data product, which currently consists of 20.5-year of version 0.00 and 1-year of version 0.10 (for 2004). It is created by employing the NASA GISS climate GCM radiative transfer code and a collection of global datasets describing the properties of the clouds and the surface every 3 hours (ISCCP), daily atmospheric profiles of temperature and humidity (NOAA TOVS), daily ozone abundances (TOMS), a climatology of cloud vertical layer distributions from rawinsonde humidity profiles (Wang et al. 2000), a climatology of cloud particle sizes (Han et al. 1994, 1999), a climatology of stratospheric aerosol and water vapor (SAGE-II), a climatology of the diurnal variations of near-surface air temperature (surface weather observations and NCEP-1 re-analysis), a climatology of tropospheric aerosols (NASA GISS climate model), and the spectral dependence of land surface albedo and emissivity by land-cover type (NASA GISS climate model). The results include the all-sky and clear-sky, upwelling and downwelling, total shortwave (SW = 0.2 - 5 micron wavelength) and total longwave (LW = 5 - 200 micron wavelength) radiative fluxes at five levels: surface, 680 mb, 440 mb, 100 mb and top-of-atmosphere (TOA). All of these results are originally reported with a resolution of 3 hours and 280 km (equal-area map equivalent to 2.5 latitude-longitude at the equator) in four data products: (1) TOA Radiative Fluxes, (2) Surface Radiative Fluxes, (3) Radiative flux profiles including TOA and SRF fluxes and (4) the complete input data collection. The first three products include a summary of the most relevant input physical parameters, whereas the fourth product contains the exact inputs used to calculate all the fluxes. The estimated uncertainties are 5-10 and 10-15 W/m^2 for TOA and surface fluxes, respectively (for regional, monthly mean flux values, see Zhang et al., 2004). The new version 0.10 for 2004 only now is a kind of improvement over the previous version 0.00 [see below 5)] and it is to be uploaded to GEWEX-RFA. As before, it includes global, monthly mean data, which is to replace the previous version 000 of 2004. The parameters included are still upward, downward and net SW and LW fluxes, total (SW+LW) net fluxes and (SW) albedo for both all- and clear-sky scenes at TOA and surface/ground (a total of 30 parameters, 14 for TOA and 16 for ground). In addition, uploaded data includes monthly-averaged 3-hourly (UTC = 00, 03, 06, 09, 12, 15, 18, 21) values for 15 grid cells, representing 15 station sites (see below list), covering a period from 1992 to 2004, the same period as BSRN operational period for comparison. The parameters included are upward, downward and net SW and LW fluxes, total (SW+LW) net fluxes, for both all- and clear-sky scenes at surface/ground, plus full- and clear-sky (downward) diffuse and direct fluxes that are for 2004 only now, however. This is a total of 18 parameters. The 15 stations are listed as follow: NYA Ny Alesund, Spitsbergen [GM/NY] PSU Rock Springs, PA [USA] FPE Fort Peck, CO Montana [USA] PAY Paverne, [Swittzerland] BOS Boulder, CO [USA] BON Bondville, Illinois [USA] DRA Desert Rock, NV [USA] BIL Billings, OK [USA] TAT Tateno [Japan] GCR Goodwin Creek, Mississippi [USA] NAU Nauru Island [USA] MAN Momote, Manus Is., Papua New Guinea [USA] DAR Darwin [Australia] GVN George von Neumaver, Ant. [GM] SPO South Pole, Antarctica [USA] Note: For DAR, we use the southern cell of the station by subtracting a tiny amount of DAR's latitude (from -12.46 to -12.54) to use FD's land cell instead of the original ocean cell. For SPO, we use Chuck Long's longitude 102 W for better comparison. 5) History of updates and changes. If you resubmit a new version of any part of this data product to GEWEX-RFA, please use this space to record the reasons for the new submission (i.e., fixed error in all___ parameter; changed to area-weighted spatial averaging, etc.) Please specify the parameter(s) affected, new RFA number(s), and the date of the change. The changes for this version 0.10 over the previous 0.00 are (1) All 2004 are reprocessed with corrected sea ice and corrected ozone input to flux calculation. The previous sea ice had bugs in ISCCP sea ice processing that affect polar regions and the previous ozone had inhomogeneous degradation of the scanner mirror on TOMS that resulted in a calibration error and this error has now been corrected by TOMS, (2) For 200410 to 200412, the new ISCCP-FD uses new (version 2) ISCCP-D1/D2 that has corrected the previous processing mistake of no-sea-ice input in D1 production, and (3) 3-year (2003-2005) mean D2 filling (into D1) has been used in this new 2004 production since 2005 D2 is available now (the previous 2004 FD used 2002-2004 D2 mean for D1 filling). 6) Please provide a list of publications and journal articles pertaining to these data (if any); or a link to a bibliography for the product. Other References other than the main as shown above: Zhang, Y., W. B. Rossow, and P. W. Stackhouse, Jr. (2007), Comparison of different global information sources used in surface radiative flux calculation: Radiative properties of the surface, J. Geophys. Res., 112, D01102, doi:10.1029/2005JD007008. Romanou, A., B. Liepert, G.A. Schmidt, W.B. Rossow, R.A. Ruedy, and Y.-C. Zhang (2007), 20th Century changes in surface solar irradiance in simulations and observations. Geophys. Res. Lett., 34, L05713, doi:10.1029/2006GL028356. Zhang, Y-C., W.B. Rossow and P.W. Stackhouse Jr. (2006), Comparison of different global information sources used in surface radiative flux calculation: Radiative Properties of the Near-surface Atmosphere (Accepted by J. Geophys. Res.). Zhang, Y-C., W.B. Rossow and P.W. Stackhouse Jr. (2006), Comparison of Different Global Information Sources Used in Surface Radiative Flux Calculation: Radiative Properties of the Surface (Accepted by J. Geophys. Res.). Rossow, W.B., Y-C. Zhang and J-H. Wang (2005), A statistical model of cloud vertical structure based on reconciling cloud layer amounts inferred from satellites and radiosonde humidity profiles. J. Climate, 18, 3587-3605. Raschke, E, A. Ohmura, W. B. Rossow, B.E. Carlson, Y-C. Zhang, C. Stubenrauch, M. Kottek and M. Wild, (2005), Cloud effects on the radiation budget based on ISCCP data ( 1991 to 1995), Int. J. Clim, 25: 1103-1125. Zhang, Y.-C. and W. B. Rossow (2002), New ISCCP global radiative flux data products, GEWEX News, Vol. 12, No. 4. Han, Q., W.B. Rossow, J. Chou, K.-S., Huo, and R.M. Welch (1999): The effects of aspect ratio and surface roughness on satellite retrievals of ice-cloud properties. J. Quant. Spectrosc. Radiat. Transfer, 63, 559-583. Han, Q., W.B. Rossow, and A.A. Lacis (1994): Near-global survey of effective droplet radii in liquid water clouds using ISCCP data. J. Climate, 7, 465-497. Wang, J., W.B. Rossow, and Y. Zhang (2000): Cloud vertical structur and its variations from a 20-year global rawinsonde dataset. J. Climate, 13, 3041-3056. Zhang, Y.-C., W.B. Rossow and A. A. Lacis (1995), Calculation of surface and top of atmosphere radiative fluxes from physical quantities based on ISCCP data sets, 1. Method and sensitivity to input data uncertainties, J. Geophys. Res., 100, 1149-1165. Rossow, W.B. and Y.-C. Zhang (1995), Calculation of surface and top of atmosphere radiative fluxes from physical quantities based on ISCCP data sets, 2. Validation and first results, J. Geophys. Res., 100, 1167-1197. 7) If you would like a specific citation or acknowlegment when these data are used in a publication, please provide that here: Zhang, Y-C., W. B. Rossow, A. A. Lacis, V. Oinas, and M. I. Mishchenko (2004), Calculation of radiative fluxes from the surface to top of atmosphere based on ISCCP and other global data sets: Refinements of the radiative transfer model and the input data, J. Geophys. Res., 109, D19105, doi:10.1029/2003JD004457. 8) Please indicate below all data types currently included in the GEWEX-RFA archive for this data product. ISCCP-FD_Ed010_TOA-MAP-MON-GLOB-AALB ISCCP-FD_Ed010_TOA-MAP-MON-GLOB-ALWNET ISCCP-FD_Ed010_TOA-MAP-MON-GLOB-ALWUP ISCCP-FD_Ed010_TOA-MAP-MON-GLOB-ASWDN ISCCP-FD_Ed010_TOA-MAP-MON-GLOB-ASWNET ISCCP-FD_Ed010_TOA-MAP-MON-GLOB-ASWUP ISCCP-FD_Ed010_TOA-MAP-MON-GLOB-ATOTNET ISCCP-FD_Ed010_TOA-MAP-MON-GLOB-CALB2 ISCCP-FD_Ed010_TOA-MAP-MON-GLOB-CLWNET2 ISCCP-FD_Ed010_TOA-MAP-MON-GLOB-CLWUP2 ISCCP-FD_Ed010_TOA-MAP-MON-GLOB-CSWDN2 ISCCP-FD_Ed010_TOA-MAP-MON-GLOB-CSWNET2 ISCCP-FD_Ed010_TOA-MAP-MON-GLOB-CSWUP2 ISCCP-FD_Ed010_TOA-MAP-MON-GLOB-CTOTNET2 ISCCP-FD_Ed010_SFC-MAP-MON-GLOB-AALB ISCCP-FD_Ed010_SFC-MAP-MON-GLOB-ALWDN ISCCP-FD_Ed010_SFC-MAP-MON-GLOB-ALWNET ISCCP-FD_Ed010_SFC-MAP-MON-GLOB-ALWUP ISCCP-FD_Ed010_SFC-MAP-MON-GLOB-ASWDN ISCCP-FD_Ed010_SFC-MAP-MON-GLOB-ASWNET ISCCP-FD_Ed010_SFC-MAP-MON-GLOB-ASWUP ISCCP-FD_Ed010_SFC-MAP-MON-GLOB-ATOTNET ISCCP-FD_Ed010_SFC-MAP-MON-GLOB-CALB2 ISCCP-FD_Ed010_SFC-MAP-MON-GLOB-CLWDN2 ISCCP-FD_Ed010_SFC-MAP-MON-GLOB-CLWNET2 ISCCP-FD_Ed010_SFC-MAP-MON-GLOB-CLWUP2 ISCCP-FD_Ed010_SFC-MAP-MON-GLOB-CSWDN2 ISCCP-FD_Ed010_SFC-MAP-MON-GLOB-CSWNET2 ISCCP-FD_Ed010_SFC-MAP-MON-GLOB-CSWUP2 ISCCP-FD_Ed010_SFC-MAP-MON-GLOB-CTOTNET2 ISCCP-FD_Ed010_SFC-TS-MOD3-NYA-ASWDN ISCCP-FD_Ed010_SFC-TS-MOD3-NYA-ASWUP ISCCP-FD_Ed010_SFC-TS-MOD3-NYA-ASWNET ISCCP-FD_Ed010_SFC-TS-MOD3-NYA-ALWDN ISCCP-FD_Ed010_SFC-TS-MOD3-NYA-ALWUP ISCCP-FD_Ed010_SFC-TS-MOD3-NYA-ALWNET ISCCP-FD_Ed010_SFC-TS-MOD3-NYA-ATOTNET ISCCP-FD_Ed010_SFC-TS-MOD3-NYA-ASWDIF ISCCP-FD_Ed010_SFC-TS-MOD3-NYA-ASWDIR ISCCP-FD_Ed010_SFC-TS-MOD3-NYA-CSWDN2 ISCCP-FD_Ed010_SFC-TS-MOD3-NYA-CSWUP2 ISCCP-FD_Ed010_SFC-TS-MOD3-NYA-CSWNET2 ISCCP-FD_Ed010_SFC-TS-MOD3-NYA-CLWDN2 ISCCP-FD_Ed010_SFC-TS-MOD3-NYA-CLWUP2 ISCCP-FD_Ed010_SFC-TS-MOD3-NYA-CLWNET2 ISCCP-FD_Ed010_SFC-TS-MOD3-NYA-CTOTNET2 ISCCP-FD_Ed010_SFC-TS-MOD3-NYA-CSWDIF2 ISCCP-FD_Ed010_SFC-TS-MOD3-NYA-CSWDIR2 ....... Where NYA should also be replaced by the rest 14 stations (PSU,...SPO) as listed above, respectively, so the total number of the above files is 270 for the time series of 18 parameters and 15 stations A) Top of atmosphere data products __14___ Maps (Parameters: list here) _____ Time series (Parameters: list here) B) Surface data products __16___ Maps (Parameters: list here) __18___ Time series (Parameters: list here) C) Ground-based measurements _____ Time series (Parameters: list here) ------------------------------------------------------------------------ Atmospheric Science Data Center NASA Langley Research Center User and Data Services MS 157D 2 South Wright St. Hampton, VA 23681-2199 Tel: (757) 864-8656 Fax: (757) 864-8807 Internet: larc@eos.nasa.gov URL: http://eosweb.larc.nasa.gov/