BOREAS RSS-01 PARABOLA SSA Surface Reflectance and Transmittance Data

7.3 Data Characteristics

7.3.1 Parameter/Variable

The parameters contained in the data files are:

BaSO4 file:
        Column Name
------------------------------
SITE_NAME
SUB_SITE
DATE_OBS
TIME_OBS
SOLAR_ZEN_ANG
PARABOLA_CH1_BASO4
PARABOLA_CH2_BASO4
PARABOLA_CH3_BASO4
CRTFCN_CODE
REVISION_DATE

Site data:
The parameters contained in the data files are:

         Column Name
------------------------------
SITE_NAME
SUB_SITE
DATE_OBS
TIME_OBS
HEMISPHERE_ID
PARABOLA_NUM_OBS
SOLAR_ZEN_ANG
SOLAR_AZ_ANG
PARABOLA_MEAN_VIEW_ZEN_ANG
PARABOLA_MEAN_VIEW_AZ_ANG
PARABOLA_BIN_VIEW_ZEN_ANG
PARABOLA_BIN_VIEW_AZ_ANG
MEAN_PARABOLA_CH1_RAD
SDEV_PARABOLA_CH1_RAD
MEAN_PARABOLA_CH2_RAD
SDEV_PARABOLA_CH2_RAD
MEAN_PARABOLA_CH3_RAD
SDEV_PARABOLA_CH3_RAD
MEAN_PARABOLA_NDVI_RAD
SDEV_PARABOLA_NDVI_RAD
MEAN_PARABOLA_CH1_REFL
MEAN_PARABOLA_CH2_REFL
MEAN_PARABOLA_CH3_REFL
MEAN_PARABOLA_NDVI_REFL
CRTFCN_CODE
REVISION_DATE

7.3.2 Variable Description/Definition

The descriptions of the parameters contained in the data files are:

BaSO4 file:
         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.
SOLAR_ZEN_ANG                  The angle from the surface normal (straight up)
                               to the sun during the data collection.
PARABOLA_CH1_BASO4             MMR measurements of a characterized barium 
                               sulfate panel at the given date and time for 
                               PARABOLA channel 1.
PARABOLA_CH2_BASO4             MMR measurements of a characterized barium 
                               sulfate panel at the given date and time for 
                               PARABOLA channel 2.
PARABOLA_CH3_BASO4             MMR measurements of a characterized barium 
                               sulfate panel at the given date and time for 
                               PARABOLA channel 3.
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).
REVISION_DATE                  The most recent date when the information in the
                               referenced data base table record was revised.

Site data:
         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.
HEMISPHERE_ID                  The hemisphere from which the instrument 
                               collected data, where GR is ground and SK is sky.
PARABOLA_NUM_OBS               The number of data points used for the averaged
                               data listed.  A negative number means there was
                               a data gap and data was instead taken from the 
                               opposite hemisphere. A zero means interpolated 
                               data.
SOLAR_ZEN_ANG                  The angle from the surface normal (straight up)
                               to the sun during the data collection.
SOLAR_AZ_ANG                   The azimuthal direction of the sun during data 
                               collection expressed in clockwise increments from
                               North.
PARABOLA_MEAN_VIEW_ZEN_ANG     The mean zenith angle at which the radiant energy
                               was traveling when measured by the PARABOLA 
                               instrument.  The mean values were calculated from
                               measurements made within 15 degree zenith angle
                               incremental bins, with the view zenith values 
                               increasing from the surface normal (straight up).
PARABOLA_MEAN_VIEW_AZ_ANG      The mean azimuthal angle at which the radiant 
                               energy was traveling when measured by the 
                               PARABOLA instrument, relative to the solar 
                               principle plane.  The mean values were calculated
                               from measurements made within 30 degree azimuthal
                               angle incremental bins, with view azimuth values 
                               increasing in a clockwise direction from the 
                               solar position.
PARABOLA_BIN_VIEW_ZEN_ANG      The center value of the 15 degree view zenith an
                               gle bin from which the PARABOLA instrument viewed
                               the target.  The center values increase relative
                               to surface normal (straight up).
PARABOLA_BIN_VIEW_AZ_ANG       The center value of the 30 degree view azimuth 
                               angle bin from which the PARABOLA instrument 
                               viewed the target.  The center values increase in 
                               a clockwise direction from the solar principal
                               plane.
MEAN_PARABOLA_CH1_RAD          The mean radiance value in PARABOLA channel 1 
                               (.65-.67 microns).
SDEV_PARABOLA_CH1_RAD          The standard deviation of the radiance value in
                               PARABOLA channel 1 (.65-.67 microns).
MEAN_PARABOLA_CH2_RAD          The mean radiance value in PARABOLA channel 2 
                               (.81-.84 microns).
SDEV_PARABOLA_CH2_RAD          The standard deviation of the radiance value in
                               PARABOLA channel 2 (.81-.84 microns).
MEAN_PARABOLA_CH3_RAD          The mean radiance value in PARABOLA channel 3 
                               (1.62-1.69 microns).
SDEV_PARABOLA_CH3_RAD          The standard deviation of the radiance value in
                               PARABOLA channel 3 (1.62-1.69 microns).
MEAN_PARABOLA_NDVI_RAD         The mean NDVI calculated from PARABOLA radiance
                               in channels 1 and 2.
SDEV_PARABOLA_NDVI_RAD         The standard deviation of NDVI calculated from 
                               PARABOLA radiance in channels 1 and 2.
MEAN_PARABOLA_CH1_REFL         The mean reflectance factor in PARABOLA channel 1
                               (.65-.67 microns) calculated from PARABOLA 
                               radiance values and MMR measurements of a 
                               characterized barium sulfate panel.
MEAN_PARABOLA_CH2_REFL         The mean reflectance factor in PARABOLA channel 2
                               (.81-.84 microns) calculated from PARABOLA 
                               radiance values and MMR measurements of a 
                               characterized barium sulfate panel.
MEAN_PARABOLA_CH3_REFL         The mean reflectance factor in PARABOLA channel 3
                               (1.62-1.69 microns) calculated from PARABOLA 
                               radiance values and MMR measurements of a 
                               characterized barium sulfate panel.
MEAN_PARABOLA_NDVI_REFL        The mean NDVI calculated from reflectance in 
                               PARABOLA channels 1 and 2.
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).
REVISION_DATE                  The most recent date when the information in the
                               referenced data base table record was revised.

7.3.3 Unit of Measurement

The measurement units for the parameters contained in the data files are:

BaSO4 data:
         Column Name                                Units
------------------------------ ------------------------------------------------
SITE_NAME                      [none]
SUB_SITE                       [none]
DATE_OBS                       [DD-MON-YYYY]
TIME_OBS                       [HHMM GMT]
SOLAR_ZEN_ANG                  [degrees]
PARABOLA_CH1_BASO4             [Watts][meter^-2][steradian^-1][micrometer^-1]
PARABOLA_CH2_BASO4             [Watts][meter^-2][steradian^-1][micrometer^-1]
PARABOLA_CH3_BASO4             [Watts][meter^-2][steradian^-1][micrometer^-1]
CRTFCN_CODE                    [none]
REVISION_DATE                  [DD-MON-YYYY]

Site data:
         Column Name                                Units
------------------------------ ------------------------------------------------
SITE_NAME                      [none]
SUB_SITE                       [none]
DATE_OBS                       [DD-MON-YYYY]
TIME_OBS                       [HHMM GMT]
HEMISPHERE_ID                  [none]
PARABOLA_NUM_OBS               [counts]
SOLAR_ZEN_ANG                  [degrees]
SOLAR_AZ_ANG                   [degrees]
PARABOLA_MEAN_VIEW_ZEN_ANG     [degrees]
PARABOLA_MEAN_VIEW_AZ_ANG      [degrees]
PARABOLA_BIN_VIEW_ZEN_ANG      [degrees]
PARABOLA_BIN_VIEW_AZ_ANG       [degrees]
MEAN_PARABOLA_CH1_RAD          [Watts][meter^-2][steradian^-1][micrometer^-1]
SDEV_PARABOLA_CH1_RAD          [Watts][meter^-2][steradian^-1][micrometer^-1]
MEAN_PARABOLA_CH2_RAD          [Watts][meter^-2][steradian^-1][micrometer^-1]
SDEV_PARABOLA_CH2_RAD          [Watts][meter^-2][steradian^-1][micrometer^-1]
MEAN_PARABOLA_CH3_RAD          [Watts][meter^-2][steradian^-1][micrometer^-1]
SDEV_PARABOLA_CH3_RAD          [Watts][meter^-2][steradian^-1][micrometer^-1]
MEAN_PARABOLA_NDVI_RAD         [none]
SDEV_PARABOLA_NDVI_RAD         [none]
MEAN_PARABOLA_CH1_REFL         [percent]
MEAN_PARABOLA_CH2_REFL         [percent]
MEAN_PARABOLA_CH3_REFL         [percent]
MEAN_PARABOLA_NDVI_REFL        [none]
CRTFCN_CODE                    [none]
REVISION_DATE                  [DD-MON-YYYY]

7.3.4 Data Source

The source of the parameter values contained in the data files are:

BaSO4 data:
         Column Name                             Data Source
------------------------------ ------------------------------------------------
SITE_NAME                      [Assigned by BORIS Staff]
SUB_SITE                       [Assigned by BORIS Staff]
DATE_OBS                       [Controller]
TIME_OBS                       [Controller]
SOLAR_ZEN_ANG                  [Calculated]
PARABOLA_CH1_BASO4             [PARABOLA]
PARABOLA_CH2_BASO4             [PARABOLA]
PARABOLA_CH3_BASO4             [PARABOLA]
CRTFCN_CODE                    [Assigned by BORIS Staff]
REVISION_DATE                  [Assigned by BORIS Staff]

Site data:
         Column Name                             Data Source
------------------------------ ------------------------------------------------
SITE_NAME                      [Assigned by BORIS Staff]
SUB_SITE                       [Assigned by BORIS Staff]
DATE_OBS                       [Controller]
TIME_OBS                       [Controller]
HEMISPHERE_ID                  [Instrument operator]
NUM_OBS                        [Controller]
SOLAR_ZEN_ANG                  [Calculated]
SOLAR_AZ_ANG                   [Calculated]
PARABOLA_MEAN_VIEW_ZEN_ANG     [PARABOLA]
PARABOLA_MEAN_VIEW_AZ_ANG      [PARABOLA]
PARABOLA_BIN_VIEW_ZEN_ANG      [PARABOLA]
PARABOLA_BIN_VIEW_AZ_ANG       [PARABOLA]
MEAN_PARABOLA_CH1_RAD          [PARABOLA]
SDEV_PARABOLA_CH1_RAD          [PARABOLA]
MEAN_PARABOLA_CH2_RAD          [PARABOLA]
SDEV_PARABOLA_CH2_RAD          [PARABOLA]
MEAN_PARABOLA_CH3_RAD          [PARABOLA]
SDEV_PARABOLA_CH3_RAD          [PARABOLA]
MEAN_PARABOLA_NDVI_RAD         [PARABOLA]
SDEV_PARABOLA_NDVI_RAD         [PARABOLA]
MEAN_PARABOLA_CH1_REFL         [PARABOLA]
MEAN_PARABOLA_CH2_REFL         [PARABOLA]
MEAN_PARABOLA_CH3_REFL         [PARABOLA]
MEAN_PARABOLA_NDVI_REFL        [PARABOLA]
CRTFCN_CODE                    [Assigned by BORIS Staff]
REVISION_DATE                  [Assigned by BORIS Staff]

7.3.5  Data Range

The following table gives information about the parameter values found in
the data files.

BaSO4 data:
                     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             RSS01-PRB01    RSS01-PRB01    None    None   None    None
DATE_OBS             16-APR-1994    30-JUL-1996    None    None   None    None
TIME_OBS             11             2356           None    None   None    None
SOLAR_ZEN_ANG        33.241         77.195         None    None   None    None
PARABOLA_CH1_BASO4   90.73          371.91         None    None   None    None
PARABOLA_CH2_BASO4   62.7           255.76         None    None   None    None
PARABOLA_CH3_BASO4   14.31          57.04          None    None   None    None
CRTFCN_CODE          CPI            CPI            None    None   None    None
REVISION_DATE        10-NOV-1998    10-NOV-1998    None    None   None    None
--------------------------------------------------------------------------------

Site data:
                     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             RSS01-PRB01    RSS01-PRB01    None    None   None    None
DATE_OBS             16-APR-1994    30-JUL-1996    None    None   None    None
TIME_OBS             11             2356           None    None   None    None
HEMISPHERE_ID        GR             SK             None    None   None    None
PARABOLA_NUM_OBS     -70            73             None    None   None    None
SOLAR_ZEN_ANG        33.241         77.195         None    None   None    None
SOLAR_AZ_ANG         75.893         273.335        None    None   None    None
PARABOLA_MEAN_VIEW_  0              80             None    None   None    None
ZEN_ANG
PARABOLA_MEAN_VIEW_  0              360            None    None   None    None
AZ_ANG
PARABOLA_BIN_VIEW_   0              75             None    None   None    None
ZEN_ANG
PARABOLA_BIN_VIEW_AZ 0              360            None    None   None    None
_ANG
MEAN_PARABOLA_CH1_   1.18           280.31         -999    None   None    None
RAD
SDEV_PARABOLA_CH1_   0              170            None    None   None    None
RAD
MEAN_PARABOLA_CH2_   2.19           139.91         -999    None   None    None
RAD
SDEV_PARABOLA_CH2_   0              89.7           None    None   None    None
RAD
MEAN_PARABOLA_CH3_   .09            59.49          -999    None   None    None
RAD
SDEV_PARABOLA_CH3_   0              38.78          None    None   None    None
RAD
MEAN_PARABOLA_NDVI_  -.714          .889           -999    None   None    None
RAD
SDEV_PARABOLA_NDVI_  0              .45            None    None   None    None
RAD
MEAN_PARABOLA_CH1_   .9             122.6          -999    None   None    None
REFL
MEAN_PARABOLA_CH2_   1.7            97.1           -999    None   None    None
REFL
MEAN_PARABOLA_CH3_   .3             129.3          -999    None   None    None
REFL
MEAN_PARABOLA_NDVI_  -.378          .925           -999    None   None    None
REFL
CRTFCN_CODE          CPI            CPI            None    None   None    None
REVISION_DATE        10-NOV-1998    12-NOV-1998    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

BaSO4 data:

SITE_NAME,SUB_SITE,DATE_OBS,TIME_OBS,SOLAR_ZEN_ANG,PARABOLA_CH1_BASO4,
PARABOLA_CH2_BASO4,PARABOLA_CH3_BASO4,CRTFCN_CODE,REVISION_DATE
'SSA-9OA-FLXTR','RSS01-PRB01',24-APR-1994,2128,49.822,296.6,211.6,46.3,'CPI',
10-NOV-1998
'SSA-9OA-FLXTR','RSS01-PRB01',24-APR-1994,2155,53.004,273.6,195.4,42.9,'CPI',
10-NOV-1998


Site data:

SITE_NAME,SUB_SITE,DATE_OBS,TIME_OBS,HEMISPHERE_ID,PARABOLA_NUM_OBS,
SOLAR_ZEN_ANG,SOLAR_AZ_ANG,PARABOLA_MEAN_VIEW_ZEN_ANG,PARABOLA_MEAN_VIEW_AZ_ANG,
PARABOLA_BIN_VIEW_ZEN_ANG,PARABOLA_BIN_VIEW_AZ_ANG,MEAN_PARABOLA_CH1_RAD,
SDEV_PARABOLA_CH1_RAD,MEAN_PARABOLA_CH2_RAD,SDEV_PARABOLA_CH2_RAD,
MEAN_PARABOLA_CH3_RAD,SDEV_PARABOLA_CH3_RAD,MEAN_PARABOLA_NDVI_RAD,
SDEV_PARABOLA_NDVI_RAD,MEAN_PARABOLA_CH1_REFL,MEAN_PARABOLA_CH2_REFL,
MEAN_PARABOLA_CH3_REFL,MEAN_PARABOLA_NDVI_REFL,CRTFCN_CODE,REVISION_DATE
'SSA-9OA-FLXTR','RSS01-PRB01',24-APR-1994,2128,'GR',3,49.822,258.413,18.5,112.3,
0,0,23.21,3.5,30.76,4.2,12.29,.97,.141,.02,7.8,14.5,26.5,.3,'CPI',10-NOV-1998
'SSA-9OA-FLXTR','RSS01-PRB01',24-APR-1994,2128,'GR',10,49.822,258.413,15.1,17.9,
15,0,19.38,3.7,26.55,5.1,10.89,1.96,.157,.01,6.5,12.5,23.5,.315,'CPI',10-NOV-1998
