!!!NOTICE!!! the web site has more information, and all the latest files!!! NEW! visit our WWW site http://blueskies.sprl.umich.edu/geia/ !!!NOTICE!!! the web site has more information, and all the latest files!!! GEIA DATA March, 1997 ______________________________________________ GEIA Data Management and Communication Center Science & Policy Associates, Inc. 2385 Panorama Avenue Boulder, Colorado 80304 USA Phone 303-442-6866, fax: 303-442-6958 anonymous ftp site ncardata.ucar.edu (128.117.8.111) directory /pub/GEIA NEW! visit our WWW site http://blueskies.sprl.umich.edu/geia/ NOTICE: Please send email to hopkins@rmii.com when you have downloaded a data set. This will allow us to notify you when data is updated. NOTICE: seasonal NOX and SOX as point and area is under RE-REVIEW, and has been temporarily removed from the site. !!!!! Please note on each data set change the format read line #104 to the format reflected on the header of each data set! GEIA GENERAL INFORMATION _____________________________________________________________ GEIA CONTACTS: Web site! http://blueskies.sprl.umich.edu/geia/ Data can be accessed via anonymous ftp at ncardata.ucar.edu (128.117.8.111). The simplest way to find the data is to move to the directory /pub/GEIA. If you need the files sent on disk or cannot move the files for some reason, please read the README files for the NCAR Data Support Section. To be added to the GEIA mailing list send email to Sharon Blackmon: blackmon@rmii.com GEIA publications and general information can be obtained from: GEIA Data Management and Information Exchange Center Henry Lansford, ACT Communication Manager c/o Science & Policy Associates, Inc. GEIA Data Management and Communication Center Science & Policy Associates, Inc. 2385 Panorama Avenue Boulder, Colorado 80304 USA Phone 303-442-6866, fax: 303-442-6958. Internet: henryl@rmii.com Questions about data access, or programming issues can be directed to: Debra Hopkins Phone 303-442-6866 Email: hopkins@rmii.com Scientific Questions or Administrative Questions can be directed to: Paulette Middleton Phone 303-442-6866 Email: Paulette@rmii.com For questions about individual data sets, please contact the person listed in the header of that data. _____________________________________________________________ DATA DESCRIPTION: The current focus of GEIA is to make global emissions available on a one degree grid for the entire world. Different scientific groups have taken responsibility for putting together the different emissions inventories. The data is being collected for 1990. The temporal resolution varies, depending on what is appropriate for the chemical. The data is in annual, seasonal or monthly resolution. Most data is provided on the surface level. For some chemical emissions there will be vertical resolution. The group or person responsible for collecting the data and publications about the data are listed on the header of each file. The temporal resolution is also on the header. All data is in ASCII format . See below for the format description. The following is a list of currently available data: BLACK CARBON: now available CFC: now available CO2: annual now available N2O: annual now available soils under natural vegetation and fertilized agricultural fields, animal excreta post-forest clearing enhanced ocean industrial fossil fuel burning biofuel burning agricultural waste burning biomass wasting NOX SOIL: now available NOX: annual now available NOX: seasonal now available as points and area SO2: annual now available SO2: seasonal now available as points and area VOC: isoprene monthly now available terpene monthly now available other monthly now available The following is a list of data that will be coming online: AIRCRAFT DATA: annual mid-1996 courtesy of NASA LEAD: annual - METHANE: 8 sources early 1997 _____________________________________________________________ FILES IN THIS DIRECTORY: The GEIA directory contains two sub-directories; "docs" and "data". The following files are available: Directory: "GEIA" GEIAREAD.TXT A copy of this document. readGeia.f A simple fortran program to read in the data. It is intended to give a starting point to reading and manipulating the data files. readGeia.in The input file to the readGeia.f program, containing the data file name, and an output file name. Directory: "GEIA/data" Read the format of the files in the section that follows. All data is in ASCII format. The following files are available as of March, 1997: "blc85yr1" - black carbon emissions from fossil fuel combustion "cfc1186yr1.1a" - cfc 11 by percent, with 1986 annual total, global 1 degree "cfc1286yr1.1a" - cfc 12 by percent, with 1986 annual total, global 1 degree "co250yr1 to co290yr1" - carbon dioxide emissions from fossil fuel consumption & cement manufacturing, 1950 to 1990 "isop90mn1.1a" - isoprene 1990 monthly, global 1 degree "n2ooc90yr1.1a" - n2o 1990 annual, global 1 degree, ocean "n2oso90yr1.1a" - n2o 1990 annual, global 1 degree, soil "n2oan90yr1.1a" - n2o 1990 annual, global 1 degree, animal excreta "n2ode90yr1.1a" - n2o 1990 annual, global 1 degree, post forest clearing "n2obb90yr1.1a" - n2o 1990 annual, global 1 degree, biomass burning "n2oag90yr1.1a" - n2o 1990 annual, global 1 degree, agricultural waste burning "n2obf90yr1.1a" - n2o 1990 annual, global 1 degree, biofuel burning "n2oin90yr1.1a" - n2o 1990 annual, global 1 degree, industrial "n2ofo90yr1.1a" - n2o 1990 annual, global 1 degree, fossil fuel burning "nox85yr1.1a" - nox 1985 annual, global 1 degree "noa85sn1.1a: - nox 1985 seasonal, area, global 1 degree (NOT AVAILABLE.. UNDER RE-REVIEW) "nop85sn1.1a: - nox 1985 seasonal, points, global 1 degree (NOT AVAILABLE.. UNDER RE-REVIEW) "nvoc90mn1.1a" - all VOC, other than isoprene and monoterpenes, with a life time of less than one day. 1990 monthly, global 1 degree "so285yr1.1a" - so2 1985 annual, global 1 degree. "soa85sn1.1a: - sox 1985 seasonal, area, global 1 degree (NOT AVAILABLE.. UNDER RE-REVIEW) "sop85sn1.1a: - sox 1985 seasonal, points, global 1 degree (NOT AVAILABLE.. UNDER RE-REVIEW) "terp90mn1.1a" - terpene 1990 monthly, global 1 degree. "soilNOX90mn1.1a" - monthly soil NOX emissions, for 1990, global 1 degree. Currently at GEIA data center, but not on anon. ftp site: none _____________________________________________________________ DATA FILE FORMAT: The file in the "GEIA" directory titled "readgeia.f" contains a fortran program that will read in the data format of the GEIA data. OVERALL STRUCTURE GEIA Inventories include a 10 line header followed by the data. Documentation is provided in separate files. The file structures and formats are set up for ease of reading and viewing by a wide variety of users. GEIA HEADERS There are 10 lines of header information. line 1: 15 GEIA label 15 filename 10 file creation date line 2: 10 specie 10 reference year for the data 10 resolution of the data (monthly, seasonal or annual) 20 units (metric units chosen to best capture the range of values for the chemical) 2 number of levels line 3: Documentation name and location plus contact persons' complete address lines 4-10: Data range and additional clarifying information. Format for the data. GEIA label: This is a general identifier common to all GEIA data bases. The label identifies each file as a GEIA file and list the type of file. The labels are as follows: "GEIA Inventory" Data for one of the species "GEIA Document" Documention for one of the inventories "GEIA Auxiliary" Additional information (e.g., population files). File names: The file name includes the following: specie, reference year for the data, temporal period, number of levels, and the inventory version. See the description below. Examples of the filename: SO285sn1.1a = SO2, seasonal resolution, one level, version 1a Species: SO2, NOX, VOC, CO, ... Year: 85, 90, ... Temporal resolution of the data: by month, season, or annually denoted as mn, sn, yr Inventory Version: 1a, 1b,....., 2a, 2b,..... The corresponding header for this inventory would be: 12345678901234567890123456789012345678901234567890123456789 0 1 2 3 4 5 6 GEIA Inventory SO285sn1.1a 28 Jun 94 SO2 1985 seasonal tons/yr 1 Documentation in Hopkins et al. Documentation Name Here Contact: D. Hopkins, Science and Policy, Inc., Boulder Co 80304 FAX: 303-442-6958 Phone: (303) 442-6866 E-mail: hopkins@rmii.com Values: minimum: .6 maximum: 59.9528 sum: 4834.03 million tonnes C Data Structure Each line of data consists of an integer grid number and real specie values for the temporal resolution of the data, for each level with the format (I6,1x,12(E10.6,1x)). The E10.6 can be varied slightly to E10.x where x is the preferred decimal level for the inventory being presented. The specific metric units used are chosen to best accommodate the range of values. The format is chosen for ease of reading and viewing information by a wide variety of users. Given the wide variation of emissions magnitudes for some chemicals, the E format is adopted. Given the variability in number of levels and temporal resolution for different inventories, the following guidelines are presented. If the specie data is provided with yearly resolution at one level only, then there is only one data point per line. If the species data is provided with seasonal or monthly resolution for one level only, then each line hasĘ4 or 12 data points per line, depending on whether the information is available seasonally or monthly. The data in this case is listed with January first or winter first, again depending on whether the resolution is monthly or seasonal. If the species data is provided with annual resolution and multiple levels, then each data line has information for each of the levels going from 1 to the last level. If there are multiple levels and temporal resolution by month or season, then information for each level appears first with each data line containing values for each month or season. For example, for an inventory with two levels and seasonal resolution, then the data is presented for level one first with the information for each season appearing on each data line associated with each grid. These guidelines are different for the aircraft data. This information will be treated as a special case. Each data file contains at most (360x180 data lines) with the grid number starting at lower left. For the inventories where there are more than one levels and the temporal resolution is seasonal or monthly, then each data file contains at most (360x180) * #levels data lines. Any grid with zeros for the emissions is not included in the data file. Grid number is defined as follows: Grid Number = (j*1000) + i j row number starting at 1 for 90S to 89S latitu de, to 180 for 89N to 90N latitude i column number starting at 1 for 180W to 179W longitude, to 360 for 179E to 180E longitude. The coordinates represent the center of the grid. The latitude and longitude of the center of the grid is given by: latitude = (j-91) + 0.5 longitude = (i-181) + 0.5 Documentation on each inventory is prepared by the inventory developers. Notes on documentation can be found in the header information, and in "docs" directory when it is available.