This direcotry contains the observed air quality and meteorological data for HGB8H2 modeling.


hgb8h_o3_dv.20090528.xls - HGB 8-hour ozone design values used for RRF calculation (updated on May 28, 2009)

aq_cb05.2005.cams.20081030.tar.gz - 2005 AQ data from CAMS sites (VOCs are CB05 species) (updated on Nov. 19, 2008)

aq_cb05.2006.cams.20081030.tar.gz - 2006 AQ data from CAMS sites (VOCs are CB05 species) (updated on Nov. 19, 2008)

met.cams.20071129.tar.gz - 2005 and 2006 MET data from CAMS sites (posted on Nov. 29, 2007)


Note:
* All data are in the Central Standard Time zone (CST).

1. File name convention:

   VARNAME.BEGDATE_ENDDATE.SOURCE.dat

   where VARNAME - variable name
                   o3, no, no2, nox, co, voc, isop, ole, eth ... (ppb)
                   wind - surface wind directtion (degree compass) and speed (m/s)
                   temp - surface air temperature at station (Celcius)
                   rhum - surface relative humidity at station (percent)
                   pres - air pressure at station (millibar)
                   pbl  - mixing height (meter)
                   dptp - surface air dew point temperature (Celcius)
         BEGDATE - beginning date of data (e.g. 20050501)
         ENDDATE - ending date of data (e.g. 20051031)
         SOURCE  - data source (e.g. cams.hgbpa - CAMS sites in HGB/BPA areas)


2. File format

   (1) Header

     * Line 1:

         #_OF_SITE MAP_PROJECTION [MAP_PROJECTION_PARAMETERS]

         where #_OF_SITE is the number of sites in the file;
               MAP_PROJECTION is the map projection type such as LATLON, LAMBERT, UTM;
               [MAP_PROJECTION_PARAMETER] is optional map projection parameters:
                 LATLON - no paramters
                 UTM - utm ozone number
                 LAMBERT - two true latitudes and center lat/lon coordinates
         Values are separated by a space.

     * Lines 2 - #_OF_SITE+1:  
                         
         SITE_CODE X Y Z SITE_INFO

         where SITE_CODE is the four-letter code used for modeling;
               X, Y are the site's coordinates (floating point, in degree or kilometer)
               Z is the site's elevation in meter (AIRS) or foot (NWS) (integer)
               SITE_INFO is info of site name, city, county, and state, etc.
       

   (2) Data Body

     DATE SITE_CODE VARNAME UNIT 24_HOUR_DATA

     where DATE is a date in the format of YYYYMMDD (e.g. 20000901 - Sep. 1, 2000)
           SITE_CODE is four-letter site code used in modeling
           VARNAME - variable name:
                     O3, NO, NO2 NOX, CO, WIND, TEMP, RHUM, PRES, DPTP, PBL
           UNIT - value unit: PPB, CELC, MPS, DEG (degree compass), PERC (percent)
           24_HOUR_DATA - 24 hourly data values

     Format in FORTRAN: (A8,1X,A4,1X,A4,1X,A4,1X,24f7.2)
                     or (A8,1X,A4,1X,A4,1X,A4,1X,24f7.1) for PRES


3. Missing Data
   
   A value of -999 or -999.0 indicates a missing value.