BOREAS HYD-05 Bear Trap Creek and Namekus Lake Winter Surface Flux Data

7.3 Data Characteristics

7.3.1 Parameter/Variable

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

HYD05 Namekus Lake Data

         Column Name
------------------------------
SITE_NAME
SUB_SITE
DATE_OBS
TIME_OBS
AIR_TEMP_ABV_CNPY
NET_RAD_ABV_CNPY
NET_RAD_2
ABS_HUM_ABV_CNPY
WIND_SPEED_ABV_CNPY
SENSIBLE_HEAT_FLUX_ABV_CNPY
LATENT_HEAT_FLUX_ABV_CNPY
FRICTION_VELOC_ABV_CNPY
WIND_SPEED_2M
WIND_SPEED_1M
QUALITY_INDEX
DOWN_SOLAR_RAD_ABV_CNPY
UP_SOLAR_RAD_ABV_CNPY
AIR_TEMP_2M
WIND_DIR_ABV_CNPY
SURFACE_TEMP
CRTFCN_CODE
REVISION_DATE

HYD05 Bear Trap Forest Data

Column Name
------------------------------
SITE_NAME
SUB_SITE
DATE_OBS
TIME_OBS
AIR_TEMP_ABV_CNPY
ABS_HUM_ABV_CNPY
WIND_SPEED_VERTICAL
WIND_SPEED_ABV_CNPY
FRICTION_VELOC_ABV_CNPY
SENSIBLE_HEAT_FLUX_ABV_CNPY
LATENT_HEAT_FLUX_ABV_CNPY
NET_RAD_ABV_CNPY
QUALITY_INDEX
U_WIND_SPEED_SOLENT
V_WIND_SPEED_SOLENT
W_WIND_SPEED_SOLENT
AIR_TEMP_SONIC
EDDY_COVARIANCE
SENSIBLE_HEAT_FLUX_SOLENT
CRTFCN_CODE
REVISION_DATE

7.3.2 Variable Description/Definition

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

HYD05 Namekus Lake 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.
AIR_TEMP_ABV_CNPY              The air temperature measured above the canopy.
NET_RAD_ABV_CNPY               The net radiation measured above the canopy.
NET_RAD_2                      The second net radiation measurement.
ABS_HUM_ABV_CNPY               The absolute humidity measured above the canopy.
WIND_SPEED_ABV_CNPY            The wind speed measured above the canopy.
SENSIBLE_HEAT_FLUX_ABV_CNPY    The sensible heat flux measured above the
                               canopy.
LATENT_HEAT_FLUX_ABV_CNPY      The latent heat flux measured above the canopy.
FRICTION_VELOC_ABV_CNPY        The friction velocity above the canopy.
WIND_SPEED_2M                  The wind speed measured at 2 meters above the
                               surface.
WIND_SPEED_1M                  The wind speed measured at 1 meter above the
                               surface.
QUALITY_INDEX                  The quality index where 0 denotes good data,
                               1-999 is fair, and 1000 is probably bad data.
DOWN_SOLAR_RAD_ABV_CNPY        The downward (incoming) solar radiation measured
                               above the canopy.
UP_SOLAR_RAD_ABV_CNPY          The reflected (outgoing) solar radiation
                               measured above the canopy.
AIR_TEMP_2M                    Air temperature measured at a height of 2 meters
                               above the surface.
WIND_DIR_ABV_CNPY              The wind direction measured above the canopy.
SURFACE_TEMP                   The surface temperature.
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.


HYD05 Bear Trap Forest 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.
AIR_TEMP_ABV_CNPY              The air temperature measured above the canopy.
ABS_HUM_ABV_CNPY               The absolute humidity measured above the canopy.
WIND_SPEED_VERTICAL            The vertical wind speed.
WIND_SPEED_ABV_CNPY            The wind speed measured above the canopy.
FRICTION_VELOC_ABV_CNPY        The friction velocity above the canopy.
SENSIBLE_HEAT_FLUX_ABV_CNPY    The sensible heat flux measured above the
                               canopy.
LATENT_HEAT_FLUX_ABV_CNPY      The latent heat flux measured above the canopy.
NET_RAD_ABV_CNPY               The net radiation measured above the canopy.
QUALITY_INDEX                  The quality index where 0 denotes good data,
                               1-999 is fair, and 1000 is probably bad data.
U_WIND_SPEED_SOLENT            The U component wind speed from the Solent
                               sensor.
V_WIND_SPEED_SOLENT            The V component wind speed from the Solent
                               sensor.
W_WIND_SPEED_SOLENT            The W component wind speed from the Solent
                               sensor.
AIR_TEMP_SONIC                 The air temperature measured from a fine wire
                               thermocouple, mounted near the sonic anemometer.
EDDY_COVARIANCE                The eddy covariance.
SENSIBLE_HEAT_FLUX_SOLENT      The sensible heat flux measured from the Solent
                               sensor.
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 on
the CD-ROM are:

HYD05 Namekus Lake Data

         Column Name                                Units
------------------------------ ------------------------------------------------
SITE_NAME                      [none]
SUB_SITE                       [none]
DATE_OBS                       [DD-MON-YYYY]
TIME_OBS                       [HHMM GMT]
AIR_TEMP_ABV_CNPY              [degrees Celsius]
NET_RAD_ABV_CNPY               [Watts][meter^-2]
NET_RAD_2                      [Watts][meter^-2]
ABS_HUM_ABV_CNPY               [grams][meter^-3]
WIND_SPEED_ABV_CNPY            [meters][second^-1]
SENSIBLE_HEAT_FLUX_ABV_CNPY    [Watts][meter^-2]
LATENT_HEAT_FLUX_ABV_CNPY      [Watts][meter^-2]
FRICTION_VELOC_ABV_CNPY        [meters][second^-1]
WIND_SPEED_2M                  [meters][second^-1]
WIND_SPEED_1M                  [meters][second^-1]
QUALITY_INDEX                  [unitless]
DOWN_SOLAR_RAD_ABV_CNPY        [Watts][meter^-2]
UP_SOLAR_RAD_ABV_CNPY          [Watts][meter^-2]
AIR_TEMP_2M                    [degrees Celsius]
WIND_DIR_ABV_CNPY              [degrees from North]
SURFACE_TEMP                   [degrees Celsius]
CRTFCN_CODE                    [none]
REVISION_DATE                  [DD-MON-YYYY]


HYD05 Bear Trap Forest Data

Column Name                                Units
------------------------------ ------------------------------------------------
SITE_NAME                      [none]
SUB_SITE                       [none]
DATE_OBS                       [DD-MON-YYYY]
TIME_OBS                       [HHMM GMT]
AIR_TEMP_ABV_CNPY              [degrees Celsius]
ABS_HUM_ABV_CNPY               [grams][meter^-3]
WIND_SPEED_VERTICAL            [meters][second^-1]
WIND_SPEED_ABV_CNPY            [meters][second^-1]
FRICTION_VELOC_ABV_CNPY        [meters][second^-1]
SENSIBLE_HEAT_FLUX_ABV_CNPY    [Watts][meter^-2]
LATENT_HEAT_FLUX_ABV_CNPY      [Watts][meter^-2]
NET_RAD_ABV_CNPY               [Watts][meter^-2]
QUALITY_INDEX                  [unitless]
U_WIND_SPEED_SOLENT            [meters][second^-1]
V_WIND_SPEED_SOLENT            [meters][second^-1]
W_WIND_SPEED_SOLENT            [meters][second^-1]
AIR_TEMP_SONIC                 [degrees Celsius]
EDDY_COVARIANCE                [unknown]
SENSIBLE_HEAT_FLUX_SOLENT      [Watts][meter^-2]
CRTFCN_CODE                    [none]
REVISION_DATE                  [DD-MON-YYYY]


7.3.4 Data Source

The source of the parameter values contained in the data files on
the CD-ROM are:

HYD05 Namekus Lake Data

         Column Name                             Data Source
------------------------------ ------------------------------------------------
SITE_NAME                      [Assigned by BORIS.]
SUB_SITE                       [Assigned by BORIS.]
DATE_OBS                       [Supplied by Investigator.]
TIME_OBS                       [Supplied by Investigator.]
AIR_TEMP_ABV_CNPY              [Supplied by Investigator.]
NET_RAD_ABV_CNPY               [Supplied by Investigator.]
NET_RAD_2                      [Supplied by Investigator.]
ABS_HUM_ABV_CNPY               [Supplied by Investigator.]
WIND_SPEED_ABV_CNPY            [Supplied by Investigator.]
SENSIBLE_HEAT_FLUX_ABV_CNPY    [Supplied by Investigator.]
LATENT_HEAT_FLUX_ABV_CNPY      [Supplied by Investigator.]
FRICTION_VELOC_ABV_CNPY        [Supplied by Investigator.]
WIND_SPEED_2M                  [Supplied by Investigator.]
WIND_SPEED_1M                  [Supplied by Investigator.]
QUALITY_INDEX                  [Supplied by Investigator.]
DOWN_SOLAR_RAD_ABV_CNPY        [Supplied by Investigator.]
UP_SOLAR_RAD_ABV_CNPY          [Supplied by Investigator.]
AIR_TEMP_2M                    [Supplied by Investigator.]
WIND_DIR_ABV_CNPY              [Supplied by Investigator.]
SURFACE_TEMP                   [Supplied by Investigator.]
CRTFCN_CODE                    [Assigned by BORIS.]
REVISION_DATE                  [Assigned by BORIS.]

HYD05 Bear Trap Forest Data

Column Name                             Data Source
------------------------------ ------------------------------------------------
SITE_NAME                      [Assigned by BORIS.]
SUB_SITE                       [Assigned by BORIS.]
DATE_OBS                       [Supplied by Investigator.]
TIME_OBS                       [Supplied by Investigator.]
AIR_TEMP_ABV_CNPY              [Supplied by Investigator.]
ABS_HUM_ABV_CNPY               [Supplied by Investigator.]
WIND_SPEED_VERTICAL            [Supplied by Investigator.]
WIND_SPEED_ABV_CNPY            [Supplied by Investigator.]
FRICTION_VELOC_ABV_CNPY        [Supplied by Investigator.]
SENSIBLE_HEAT_FLUX_ABV_CNPY    [Supplied by Investigator.]
LATENT_HEAT_FLUX_ABV_CNPY      [Supplied by Investigator.]
NET_RAD_ABV_CNPY               [Supplied by Investigator.]
QUALITY_INDEX                  [Supplied by Investigator.]
U_WIND_SPEED_SOLENT            [Supplied by Investigator.]
V_WIND_SPEED_SOLENT            [Supplied by Investigator.]
W_WIND_SPEED_SOLENT            [Supplied by Investigator.]
AIR_TEMP_SONIC                 [Supplied by Investigator.]
EDDY_COVARIANCE                [Supplied by Investigator.]
SENSIBLE_HEAT_FLUX_SOLENT      [Supplied by Investigator.]
CRTFCN_CODE                    [Assigned by BORIS.]
REVISION_DATE                  [Assigned by BORIS.]


7.3.5  Data Range

The following table gives information about the parameter values found in
the data files on the CD-ROM.

HYD05 Namekus Lake Data

                     Minimum        Maximum        Missng  Unrel  Below   Data
                     Data           Data           Data    Data   Detect  Not
Column Name          Value          Value          Value   Value  Limit   Cllctd
--------------------------------------------------------------------------------
SITE_NAME            SSA-WAT-FLXTR  SSA-WAT-FLXTR  None    None   None    None
SUB_SITE             HYD05-FLX01    HYD05-FLX01    None    None   None    None
DATE_OBS             10-FEB-1994    11-APR-1996    None    None   None    None
TIME_OBS             0              2300           None    None   None    None
AIR_TEMP_ABV_CNPY    -23.4          9.5            -999    None   None    Blank
NET_RAD_ABV_CNPY     -86            130            -999    None   None    Blank
NET_RAD_2            -84.7          462.6          None    None   None    None
ABS_HUM_ABV_CNPY     -.2            8.7            -999    None   None    Blank
WIND_SPEED_ABV_CNPY  .1             14.3           -999    None   None    Blank
SENSIBLE_HEAT_FLUX_  -109           58             -999    None   None    Blank
ABV_CNPY
LATENT_HEAT_FLUX_ABV_-9073          308            -999    None   None    Blank
CNPY
FRICTION_VELOC_ABV_  -9999          .44            -999    None   None    Blank
CNPY
WIND_SPEED_2M        0              13.21          None    None   None    None
WIND_SPEED_1M        0              12.04          -999    None   None    None
QUALITY_INDEX        0              3220           -999    None   None    Blank
DOWN_SOLAR_RAD_ABV_  -4.337         773            None    None   None    None
CNPY
UP_SOLAR_RAD_ABV_    -2.179         582.1          None    None   None    None
CNPY
AIR_TEMP_2M          -37.57         16.81          None    None   None    None
WIND_DIR_ABV_CNPY    .017           359.8          -999    None   None    Blank
SURFACE_TEMP         -20.1          13.5           -999    None   None    Blank
CRTFCN_CODE          CPI            CPI            None    None   None    None
REVISION_DATE        23-JUL-1998    24-JUL-1998    None    None   None    None
--------------------------------------------------------------------------------


HYD05 Bear Trap Forest Data

                     Minimum        Maximum        Missng  Unrel  Below   Data
                     Data           Data           Data    Data   Detect  Not
Column Name          Value          Value          Value   Value  Limit   Cllctd
--------------------------------------------------------------------------------
SITE_NAME            SSA-CLR-FLXTR  SSA-CLR-FLXTR  None    None   None    None
SUB_SITE             HYD05-FLX01    HYD05-FLX01    None    None   None    None
DATE_OBS             01-FEB-1994    17-APR-1994    None    None   None    None
TIME_OBS             0              2300           None    None   None    None
AIR_TEMP_ABV_CNPY    -13.5          18.6           -999    None   None    None
ABS_HUM_ABV_CNPY     .6             5.1            -999    None   None    None
WIND_SPEED_VERTICAL  -.91           1.35           -999    None   None    None
WIND_SPEED_ABV_CNPY  .1             11.6           -999    None   None    None
FRICTION_VELOC_ABV_  -.15           1.13           -999    None   None    None
CNPY
SENSIBLE_HEAT_FLUX_  -93            999            -999    None   None    None
ABV_CNPY
LATENT_HEAT_FLUX_ABV_ -349           467            -999    None   None    None
CNPY
NET_RAD_ABV_CNPY     -94            550            -999    None   None    None
QUALITY_INDEX        -9999          9999           -999    None   None    Blank
U_WIND_SPEED_SOLENT  -.25           16.62          -999    None   None    None
V_WIND_SPEED_SOLENT  -6.28          16.39          -999    None   None    None
W_WIND_SPEED_SOLENT  -4.42          13.97          -999    None   None    None
AIR_TEMP_SONIC       -54            18.5           -999    None   None    None
EDDY_COVARIANCE      -29.14         36.69          -999    None   None    None
SENSIBLE_HEAT_FLUX_  -69.05         327.94         -999    None   None    None
SOLENT
CRTFCN_CODE          CPI            CPI            None    None   None    None
REVISION_DATE        24-JUL-1998    24-JUL-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

HYD05 Namekus Lake Data

SITE_NAME,SUB_SITE,DATE_OBS,TIME_OBS,AIR_TEMP_ABV_CNPY,ABS_HUM_ABV_CNPY,
WIND_SPEED_VERTICAL,WIND_SPEED_ABV_CNPY,FRICTION_VELOC_ABV_CNPY,
SENSIBLE_HEAT_FLUX_ABV_CNPY,LATENT_HEAT_FLUX_ABV_CNPY,NET_RAD_ABV_CNPY,
QUALITY_INDEX,U_WIND_SPEED_SOLENT,V_WIND_SPEED_SOLENT,W_WIND_SPEED_SOLENT,
AIR_TEMP_SONIC,EDDY_COVARIANCE,SENSIBLE_HEAT_FLUX_SOLENT,CRTFCN_CODE,
REVISION_DATE
'SSA-CLR-FLXTR','HYD05-FLX01',01-FEB-1994,600,-999.0,-999.0,-999.0,-999.0,
-999.0,-999.0,-999.0,-999.0,-999,-999.0,-999.0,-999.0,-999.0,-999.0,-999.0,
'CPI',24-JUL-1998
'SSA-CLR-FLXTR','HYD05-FLX01',01-FEB-1994,700,-999.0,-999.0,-999.0,-999.0,
-999.0,-999.0,-999.0,-999.0,-999,-999.0,-999.0,-999.0,-999.0,-999.0,-999.0,'CPI',24-JUL-1998


HYD05 Bear Trap Forest Data

SITE_NAME,SUB_SITE,DATE_OBS,TIME_OBS,AIR_TEMP_ABV_CNPY,NET_RAD_ABV_CNPY,
NET_RAD_2,ABS_HUM_ABV_CNPY,WIND_SPEED_ABV_CNPY,SENSIBLE_HEAT_FLUX_ABV_CNPY,
LATENT_HEAT_FLUX_ABV_CNPY,FRICTION_VELOC_ABV_CNPY,WIND_SPEED_2M,WIND_SPEED_1M,
QUALITY_INDEX,DOWN_SOLAR_RAD_ABV_CNPY,UP_SOLAR_RAD_ABV_CNPY,AIR_TEMP_2M,
WIND_DIR_ABV_CNPY,SURFACE_TEMP,CRTFCN_CODE,REVISION_DATE
'SSA-WAT-FLXTR','HYD05-FLX01',10-FEB-1994,1900,,-23.0,0.0,.8,1.1,-999.0,0.0,-.1,
.818,.498,,308.2,248.9,-24.17,,-999.0,'CPI',23-JUL-1998
'SSA-WAT-FLXTR','HYD05-FLX01',10-FEB-1994,2000,,-999.0,-15.83,-999.0,-999.0,
-999.0,-999.0,-.1,.774,.563,,342.9,283.7,-22.23,,-20.1,'CPI',23-JUL-1998
