BOREAS TGB-09 Above-Canopy NMHC at SSA-OBS, SSA-OJP and SSA-OA Sites

7.3 Data Characteristics                                                        

7.3.1 Parameter/Variable

The parameters contained in the data files on the CD-ROM are:

         Column Name
------------------------------
SITE_NAME
SUB_SITE
DATE_OBS
TIME_OBS
CANISTER_NUM
HT_AGL
ISOPRENE_CONC
QA_CODE
ETHANE_MIX_RATIO
PROPANE_MIX_RATIO
N-BUTANE_MIX_RATIO
ISOBUTANE_MIX_RATIO
N-PENTANE_MIX_RATIO
ISOPENTANE_MIX_RATIO
N-HEXANE_MIX_RATIO
2-METHYL-PENTANE_MIX_RATIO
3-METHYL-PENTANE_MIX_RATIO
N-HEPTANE_MIX_RATIO
METHYL-CYCLOHEXANE_MIX_RATIO
ACETYLENE_MIX_RATIO
ETHENE_MIX_RATIO
PROPENE_MIX_RATIO
1-BUTENE_MIX_RATIO
ISOBUTENE_MIX_RATIO
1-PENTENE_MIX_RATIO
1_3-BUTADIENE_MIX_RATIO    [NOTE:  Renamed from 1,3-BUTADIENE_MIX_RATIO ]
ISOPRENE_MIX_RATIO
ALPHA-PINENE_MIX_RATIO
BETA-PINENE_MIX_RATIO
CAMPHENE_MIX_RATIO
3-CARENE_MIX_RATIO
PARACYMENE_MIX_RATIO
D-LIMONENE_MIX_RATIO
BENZENE_MIX_RATIO
TOLUENE_MIX_RATIO
FILE_NUM
REVISION_DATE
CRTFCN_CODE

7.3.2 Variable Description/Definition

The descriptions of the parameters contained in the data files on
the CD-ROM are:

         Column Name                             Description
 ------------------------------ ------------------------------------------------
SITE_NAME                      The identifier assigned to the site by BOREAS, in
                               the format SSS-TTT-CCCCC, where SSS identifies
                               the portion of the study area: NSA, SSA, REG, TRN, 
                               and TTT identifies the cover type for the site, 
                               999 if unknown, and CCCCC is the identifier
                               for site, exactly what it means will vary with 
                               site type.
SUB_SITE                       The identifier assigned to the sub-site by BOREAS, 
                               in the format GGGGG-IIIII, where GGGGG is the
                               group associated with the sub-site instrument,
                               e.g. HYD06 or STAFF, and IIIII is the identifier
                               for sub-site, often this will refer to an 
                               instrument.
DATE_OBS                       The date on which the data were collected.
TIME_OBS                       The Greenwich Mean Time (GMT) when the data were
                               collected.
CANISTER_NUM                   Sampling canister number for isoprene data.
HT_AGL                         The height above ground at which the measurements 
                               were taken.
ISOPRENE_CONC                  The ambient concentration of isoprene
QA_CODE                        Quality assurance code 1=good, 2=missing, 3=value 
                               outside expected range, 4=unexpected reverse 
                               gradient.
ETHANE_MIX_RATIO               The ethane mixing ratio in the air sample.
PROPANE_MIX_RATIO              The propane mixing ratio in the air sample.
N-BUTANE_MIX_RATIO             The n-butane mixing ratio in the air sample.
ISOBUTANE_MIX_RATIO            The isobutane mixing ratio in the air sample.
N-PENTANE_MIX_RATIO            The n-pentane mixing ratio in the air sample.
ISOPENTANE_MIX_RATIO           The isopentane mixing ratio in the air sample.
N-HEXANE_MIX_RATIO             The n-hexane mixing ratio in the air sample.
2-METHYL-PENTANE_MIX_RATIO     The 2-methyl-pentane mixing ratio in the air 
                               sample.
3-METHYL-PENTANE_MIX_RATIO     The 3-methyl-pentane mixing ratio in the air 
                               sample.
N-HEPTANE_MIX_RATIO            The n-heptane mixing ratio in the air sample.
METHYL-CYCLOHEXANE_MIX_RATIO   The methyl-cyclohexane mixing ratio in the air 
                               sample.
ACETYLENE_MIX_RATIO            The acetylene mixing ratio in the air sample.
ETHENE_MIX_RATIO               The ethene mixing ratio in the air sample.
PROPENE_MIX_RATIO              The propene mixing ratio in the air sample.
1-BUTENE_MIX_RATIO             The 1-butene mixing ratio in the air sample.
ISOBUTENE_MIX_RATIO            The isobutene mixing ratio in the air sample.
1-PENTENE_MIX_RATIO            The 1-pentene mixing ratio in the air sample.
1_3-BUTADIENE_MIX_RATIO        The 1,3-butadiene mixing ratio in the air sample.
ISOPRENE_MIX_RATIO             The isoprene mixing ratio in the air sample.
ALPHA-PINENE_MIX_RATIO         The alpha-pinene mixing ratio in the air sample.
BETA-PINENE_MIX_RATIO          The beta-pinene mixing ratio in the air sample.
CAMPHENE_MIX_RATIO             The camphene mixing ratio in the air sample.
3-CARENE_MIX_RATIO             The 3-carene mixing ratio in the air sample.
PARACYMENE_MIX_RATIO           The paracymene mixing ratio in the air sample.
D-LIMONENE_MIX_RATIO           The d-limonene mixing ratio in the air sample.
BENZENE_MIX_RATIO              The benzene mixing ratio in the air sample.
TOLUENE_MIX_RATIO              The toluene mixing ratio in the air sample.
FILE_NUM                       The file number for the raw data in teams 
                               archives.
REVISION_DATE                  The most recent date when the information in the
                               referenced data base table record was revised.
CRTFCN_CODE                    The BOREAS certification level of the data.  
                               Examples are CPI (Checked by PI), CGR (Certified 
                               by Group), PRE (Preliminary), and CPI-??? (CPI but
                               questionable).

7.3.3 Unit of Measurement

         Column Name                                Units
------------------------------ ------------------------------------------------
SITE_NAME                      [none]
SUB_SITE                       [none]
DATE_OBS                       [DD-MON-YYYY]
TIME_OBS                       [HHMM GMT]
CANISTER_NUM                   [none]
HT_AGL                         [meters]
ISOPRENE_CONC                  [parts per billion Carbon]
QA_CODE                        [unitless]
ETHANE_MIX_RATIO               [unitless]
PROPANE_MIX_RATIO              [unitless]
N-BUTANE_MIX_RATIO             [unitless]
ISOBUTANE_MIX_RATIO            [unitless]
N-PENTANE_MIX_RATIO            [unitless]
ISOPENTANE_MIX_RATIO           [unitless]
N-HEXANE_MIX_RATIO             [unitless]
2-METHYL-PENTANE_MIX_RATIO     [unitless]
3-METHYL-PENTANE_MIX_RATIO     [unitless]
N-HEPTANE_MIX_RATIO            [unitless]
METHYL-CYCLOHEXANE_MIX_RATIO   [unitless]
ACETYLENE_MIX_RATIO            [unitless]
ETHENE_MIX_RATIO               [unitless]
PROPENE_MIX_RATIO              [unitless]
1-BUTENE_MIX_RATIO             [unitless]
ISOBUTENE_MIX_RATIO            [unitless]
1-PENTENE_MIX_RATIO            [unitless]
1_3-BUTADIENE_MIX_RATIO        [unitless]
ISOPRENE_MIX_RATIO             [unitless]
ALPHA-PINENE_MIX_RATIO         [unitless]
BETA-PINENE_MIX_RATIO          [unitless]
CAMPHENE_MIX_RATIO             [unitless]
3-CARENE_MIX_RATIO             [unitless]
PARACYMENE_MIX_RATIO           [unitless]
D-LIMONENE_MIX_RATIO           [unitless]
BENZENE_MIX_RATIO              [unitless]
TOLUENE_MIX_RATIO              [unitless]
FILE_NUM                       [unitless]
REVISION_DATE                  [DD-MON-YYYY]
CRTFCN_CODE                    [none]

7.3.4 Data Source

         Column Name                             Data Source
------------------------------ ------------------------------------------------
SITE_NAME                      Assigned by BORIS
SUB_SITE                       Assigned by BORIS
DATE_OBS                       Investigator
TIME_OBS                       Investigator
CANISTER_NUM                   Investigator
HT_AGL                         Investigator
ISOPRENE_CONC                  GC-FID
QA_CODE                        Investigator
ETHANE_MIX_RATIO               GC-FID
PROPANE_MIX_RATIO              GC-FID
N-BUTANE_MIX_RATIO             GC-FID
ISOBUTANE_MIX_RATIO            GC-FID
N-PENTANE_MIX_RATIO            GC-FID
ISOPENTANE_MIX_RATIO           GC-FID
N-HEXANE_MIX_RATIO             GC-FID
2-METHYL-PENTANE_MIX_RATIO     GC-FID
3-METHYL-PENTANE_MIX_RATIO     GC-FID
N-HEPTANE_MIX_RATIO            GC-FID
METHYL-CYCLOHEXANE_MIX_RATIO   GC-FID
ACETYLENE_MIX_RATIO            GC-FID
ETHENE_MIX_RATIO               GC-FID
PROPENE_MIX_RATIO              GC-FID
1-BUTENE_MIX_RATIO             GC-FID
ISOBUTENE_MIX_RATIO            GC-FID
1-PENTENE_MIX_RATIO            GC-FID
1_3-BUTADIENE_MIX_RATIO        GC-FID
ISOPRENE_MIX_RATIO             GC-FID
ALPHA-PINENE_MIX_RATIO         GC-FID
BETA-PINENE_MIX_RATIO          GC-FID
CAMPHENE_MIX_RATIO             GC-FID
3-CARENE_MIX_RATIO             GC-FID
PARACYMENE_MIX_RATIO           GC-FID
D-LIMONENE_MIX_RATIO           GC-FID
BENZENE_MIX_RATIO              GC-FID
TOLUENE_MIX_RATIO              GC-FID
FILE_NUM                       Investigator
REVISION_DATE                  Assigned by BORIS
CRTFCN_CODE                    Assigned by BORIS

7.3.5	Data Range

Minimum        Maximum        Missng  Unrel  Below   Data
                     Data           Data           Data    Data   Detect  Not
Column Name          Value          Value          Value   Value  Limit   Cllctd
--------------------------------------------------------------------------------
SITE_NAME            SSA-9OA-FLXTR  SSA-OJP-FLXTR  None    None   None    None
SUB_SITE             TGB09-CON01    TGB09-MIX01    None    None   None    None
DATE_OBS             27-MAY-1994    15-SEP-1994    None    None   None    None
TIME_OBS             0              2305           None    None   None    None
CANISTER_NUM         -999           Y525           -999    None   None    Blank
HT_AGL               12             38             None    None   None    None
ISOPRENE_CONC        .001           9.72           -999    None   None    Blank
QA_CODE              1              4              None    None   None    Blank
ETHANE_MIX_RATIO     1.365          4.81           None    None   None    Blank
PROPANE_MIX_RATIO    .23            3.609          None    None   None    Blank
N-BUTANE_MIX_RATIO   .054           15.09          None    None   None    Blank
ISOBUTANE_MIX_RATIO  .022           9.654          None    None   None    Blank
N-PENTANE_MIX_       .021           2.898          None    None   None    Blank
RATIO
ISOPENTANE_MIX_RATIO .018           11.312         None    None   None    Blank
N-HEXANE_MIX_RATIO   .002           .586           None    None   None    Blank
2-METHYL-PENTANE_    .002           .911           None    None   None    Blank
MIX_RATIO
3-METHYL-PENTANE_    .002           .527           None    None   None    Blank
MIX_RATIO
N-HEPTANE_MIX_       .002           .149           None    None   None    Blank
RATIO
METHYL-CYCLOHEXANE_  .002           .18            None    None   None    Blank
MIX_RATIO
ACETYLENE_MIX_RATIO  .173           1.515          None    None   None    Blank
ETHENE_MIX_RATIO     .068           1.593          None    None   None    Blank
PROPENE_MIX_RATIO    .02            6.644          None    None   None    Blank
1-BUTENE_MIX_RATIO   .002           .199           None    None   None    Blank
ISOBUTENE_MIX_RATIO  .016           .254           None    None   None    Blank
1-PENTENE_MIX_       .002           .16            None    None   None    Blank
RATIO
1_3-BUTADIENE_MIX_   .002           .041           None    None   None    Blank
RATIO
ISOPRENE_MIX_RATIO   .079           1.304          None    None   None    Blank
ALPHA-PINENE_MIX_    .002           .494           None    None   None    Blank
RATIO
BETA-PINENE_MIX_     .002           .165           None    None   None    Blank
RATIO
CAMPHENE_MIX_RATIO   .002           .499           None    None   None    Blank
3-CARENE_MIX_RATIO   .002           .099           None    None   None    Blank
PARACYMENE_MIX_RATIO .002           .044           None    None   None    Blank
D-LIMONENE_MIX_      .002           .123           None    None   None    Blank
RATIO
BENZENE_MIX_RATIO    .044           .557           None    None   None    Blank
TOLUENE_MIX_RATIO    .022           1.456          None    None   None    Blank
FILE_NUM             -999           379            -999    None   None    Blank
REVISION_DATE        24-FEB-1995    05-NOV-1996    None    None   None    None
CRTFCN_CODE          CPI            CPI            None    None   None    None
--------------------------------------------------------------------------------
Minimum Data Value -- The minimum value found in the column.
Maximum Data Value -- The maximum value found in the column.
Missng Data Value  -- The value that indicates missing data. This is used to
                      indicate that an attempt was made to determine the
                      parameter value, but the attempt was unsuccessful.
Unrel Data Value   -- The value that indicates unreliable data.  This is used
                      to indicate an attempt was made to determine the
                      parameter value, but the value was deemed to be
                      unreliable by the analysis personnel.
Below Detect Limit -- The value that indicates parameter values below the
                      instruments detection limits.  This is used to
                      indicate that an attempt was made to determine the
                      parameter value, but the analysis personnel determined
                      that the parameter value was below the detection
                      limit of the instrumentation.
Data Not Cllctd    -- This value indicates that no attempt was made to
                      determine the parameter value.  This usually
                      indicates that BORIS combined several similar but
                      not identical data sets into the same data base table
                      but this particular science team did not
                      measure that parameter.

Blank -- Indicates that blank spaces are used to denote that type of value.
N/A   -- Indicates that the value is not applicable to the respective column.
None  -- Indicates that no values of that sort were found in the column.

7.4 Sample Data Record

 [NOTE:  '1,3-BUTADIENE_MIX_RATIO' was renamed to '1_3-BUTADIENE_MIX_RATIO' to
  avoid difficulties with software reading an imbedded comma in a column name.]

SITE_NAME,SUB_SITE,DATE_OBS,TIME_OBS,CANISTER_NUM,HT_AGL,ISOPRENE_CONC,QA_CODE,
ETHANE_MIX_RATIO,PROPANE_MIX_RATIO,N-BUTANE_MIX_RATIO,ISOBUTANE_MIX_RATIO,
N-PENTANE_MIX_RATIO,ISOPENTANE_MIX_RATIO,N-HEXANE_MIX_RATIO,
2-METHYL-PENTANE_MIX_RATIO,3-METHYL-PENTANE_MIX_RATIO,N-HEPTANE_MIX_RATIO,
METHYL-CYCLOHEXANE_MIX_RATIO,ACETYLENE_MIX_RATIO,ETHENE_MIX_RATIO,
PROPENE_MIX_RATIO,1-BUTENE_MIX_RATIO,ISOBUTENE_MIX_RATIO,1-PENTENE_MIX_RATIO,
1_3-BUTADIENE_MIX_RATIO,ISOPRENE_MIX_RATIO,ALPHA-PINENE_MIX_RATIO,
BETA-PINENE_MIX_RATIO,CAMPHENE_MIX_RATIO,3-CARENE_MIX_RATIO,
PARACYMENE_MIX_RATIO,D-LIMONENE_MIX_RATIO,BENZENE_MIX_RATIO,TOLUENE_MIX_RATIO,
FILE_NUM,REVISION_DATE,CRTFCN_CODE
'SSA-9OA-FLXTR','TGB09-CON01',04-AUG-1994,1003,'Y066',27.0,3.216,1,,,,,,,,,,,,
,,,,,,,,,,,,,,,,'140',05-NOV-1996,'CPI'
'SSA-9OA-FLXTR','TGB09-CON01',04-AUG-1994,1003,'Y042',38.0,2.644,1,,,,,,,,,,,,
,,,,,,,,,,,,,,,,'139',05-NOV-1996,'CPI'
