BOREAS HYD-03 Subcanopy Meteorological Data

7.3 Data Characteristics

7.3.1 Parameter/Variable

         Column Name
------------------------------
SITE_NAME
SUB_SITE
DATE_OBS
TIME_OBS
MEAN_DOWN_THERMAL_RAD_1
MEAN_DOWN_THERMAL_RAD_2
MEAN_WIND_SPEED_2M
MEAN_WIND_SPEED_VECTOR_MAG_2M
MEAN_WIND_VECTOR_DIR_2M
SDEV_WIND_DIR_2M
CANOPY_TEMP_1
CANOPY_TEMP_2
TRUNK_TEMP_1
TRUNK_TEMP_2
AIR_TEMP_2M
SNOW_SURF_TEMP
REL_HUM_2M
CRTFCN_CODE
REVISION_DATE


7.3.2 Variable Description/Definition

         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.
MEAN_DOWN_THERMAL_RAD_1        The mean thermal radiation to the surface.
MEAN_DOWN_THERMAL_RAD_2        The mean thermal radiation to the surface.
MEAN_WIND_SPEED_2M             The mean wind speed that was measured at 2 meters
                               above the ground.
MEAN_WIND_SPEED_VECTOR_MAG_2M  The mean wind vector magnitude at 2 meters above
                               the ground.
MEAN_WIND_VECTOR_DIR_2M        The mean wind direction at 2 meters above the
                               ground.
SDEV_WIND_DIR_2M               The standard deviation of the wind direction at
                               2 meters above the ground.
CANOPY_TEMP_1                  The temperature of the canopy from sensor 1.
CANOPY_TEMP_2                  The temperature of the canopy from sensor 2.
TRUNK_TEMP_1                   The temperature of tree trunk 1 at the site.
TRUNK_TEMP_2                   The temperature of tree trunk 2 at the site.
AIR_TEMP_2M                    The air temperature at 2 meters above the ground.
SNOW_SURF_TEMP                 The temperature of the snow surface.
REL_HUM_2M                     The relative humidity at 2 meters above ground.
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

         Column Name                                Units
------------------------------ ------------------------------------------------
SITE_NAME                      [none]
SUB_SITE                       [none]
DATE_OBS                       [DD-MON-YYYY]
TIME_OBS                       [HHMM GMT]
MEAN_DOWN_THERMAL_RAD_1        [Watts][meter^-2]
MEAN_DOWN_THERMAL_RAD_2        [Watts][meter^-2]
MEAN_WIND_SPEED_2M             [meters][second^-1]
MEAN_WIND_SPEED_VECTOR_MAG     [meters][second^-1]
MEAN_WIND_VECTOR_DIR_2M        [degrees]
SDEV_WIND_DIR_2M               [degrees]
CANOPY_TEMP_1                  [degrees Celsius]
CANOPY_TEMP_2                  [degrees Celsius]
TRUNK_TEMP_1                   [degrees Celsius]
TRUNK_TEMP_2                   [degrees Celsius]
AIR_TEMP_2M                    [degrees Celsius]
SNOW_SURF_TEMP                 [degrees Celsius]
REL_HUM_2M                     [percent]
CRTFCN_CODE                    [none]
REVISION_DATE                  [DD-MON-YYYY]



7.3.4 Data Source

         Column Name                             Data Source
------------------------------ ------------------------------------------------
SITE_NAME                      [Assigned by BORIS]
SUB_SITE                       [Assigned by BORIS]
DATE_OBS                       [Supplied by Investigator]
TIME_OBS                       [Supplied by Investigator]
MEAN_DOWN_THERMAL_RAD_1        [Supplied by Investigator]
MEAN_DOWN_THERMAL_RAD_2        [Supplied by Investigator]
MEAN_WIND_SPEED_2M             [Supplied by Investigator]
MEAN_WIND_SPEED_VECTOR_MAG     [Supplied by Investigator]
MEAN_WIND_VECTOR_DIR_2M        [Supplied by Investigator]
SDEV_WIND_DIR_2M               [Supplied by Investigator]
CANOPY_TEMP_1                  [Supplied by Investigator]
CANOPY_TEMP_2                  [Supplied by Investigator]
TRUNK_TEMP_1                   [Supplied by Investigator]
TRUNK_TEMP_2                   [Supplied by Investigator]
AIR_TEMP_2M                    [Supplied by Investigator]
SNOW_SURF_TEMP                 [Supplied by Investigator]
REL_HUM_2M                     [Supplied by Investigator]
CRTFCN_CODE                    [Assigned by BORIS]
REVISION_DATE                  [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             HYD03-SCM01    HYD03-SCM01    None    None   None    None
DATE_OBS             06-FEB-1994    08-MAR-1996    None    None   None    None
TIME_OBS             0              2359           None    None   None    None
MEAN_DOWN_THERMAL_   176.1          264.5          -999    None   None    Blank
RAD_1
MEAN_DOWN_THERMAL_   176.2          315.1          -999    None   None    Blank
RAD_2
MEAN_WIND_SPEED_2M   0              1.766          -999    None   None    Blank
MEAN_WIND_SPEED_     0              1.581          -999    None   None    Blank
VECTOR_MAG_2M
MEAN_WIND_VECTOR_DIR_ 0              360           -999    None   None    Blank
2M
SDEV_WIND_DIR_2M      0              81            -999    None   None    Blank
CANOPY_TEMP_1        -27.2          -3.9           -999    None   None    Blank
CANOPY_TEMP_2        -27.4          -3             -999    None   None    Blank
TRUNK_TEMP_1         -27.2          -1.8           -999    None   None    Blank
TRUNK_TEMP_2         -27.4          -4.9           None    None   None    Blank
AIR_TEMP_2M          -29.5          -6.3           -999    None   None    Blank
SNOW_SURF_TEMP       -17.4          -8.3           -999    None   None    Blank
REL_HUM_2M           28             86.2           -999    None   None    Blank
CRTFCN_CODE          CPI            CPI            None    None   None    None
REVISION_DATE        18-JUN-1997    18-JUN-1997    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

SITE_NAME,SUB_SITE,DATE_OBS,TIME_OBS,MEAN_DOWN_THERMAL_RAD_1,
MEAN_DOWN_THERMAL_RAD_2,MEAN_WIND_SPEED_2M,MEAN_WIND_SPEED_VECTOR_MAG_2M,
MEAN_WIND_VECTOR_DIR_2M,SDEV_WIND_DIR_2M,CANOPY_TEMP_1,CANOPY_TEMP_2,
TRUNK_TEMP_1,TRUNK_TEMP_2,AIR_TEMP_2M,SNOW_SURF_TEMP,REL_HUM_2M,CRTFCN_CODE,
REVISION_DATE
'SSA-9OA-FLXTR','HYD03-SCM01',04-MAR-1996,2347,207.8,206.6,.18,.18,.289,.069,
,,-20.4,-21.9,-19.4,-999,61.2,'CPI',18-JUN-1997 
'SSA-9OA-FLXTR','HYD03-SCM01',04-MAR-1996,2349,210.3,209.8,.309,.309,336.1,.329,
,,-20.4,-22,-19.4,-999,60.6,'CPI',18-JUN-1997 
