BOREAS 1996 Snow Pit Measurements: HYD-03

7.3 Data Characteristics

7.3.1 Parameter/Variable


HYD03_SNOW_PITS_96_DATA

         Column Name
------------------------------
SITE_NAME
SUB_SITE
DATE_OBS
SNOW_LAYER_TOP_HT
SNOW_LAYER_BOTM_HT
SNOW_DENSITY_1
SNOW_DENSITY_2
SNOW_DENSITY_3
PARM_VALUE_FLAGS
SNOW_TEMP
SNOW_TEMP_HT
CRTFCN_CODE
REVISION_DATE


7.3.2 Variable Description/Definition


HYD03_SNOW_PITS_96_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.
SNOW_LAYER_TOP_HT              The upper height of a layer or "horizon" of snow.
SNOW_LAYER_BOTM_HT             The lower height of a layer or "horizon" of snow.
SNOW_DENSITY_1                 The first snow density measurement.
SNOW_DENSITY_2                 The second snow density measurement.
SNOW_DENSITY_3                 The third snow density measurement.
PARM_VALUE_FLAGS               This contains values or codes that indicate
                               special conditions for the data parameters.
                               N/A = not applicable.
SNOW_TEMP                      The temperature of the snow at the reported snow
                               height.
SNOW_TEMP_HT                   The height above the surface at which the snow
                               temperature measurement was made.
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


HYD03_SNOW_PITS_96_DATA

Column Name                                Units
------------------------------ ------------------------------------------------
SITE_NAME                      [none]
SUB_SITE                       [none]
DATE_OBS                       [DD-MON-YYYY]
SNOW_LAYER_TOP_HT              [millimeters]
SNOW_LAYER_BOTM_HT             [millimeters]
SNOW_DENSITY_1                 [kilograms][meter^-3]
SNOW_DENSITY_2                 [kilograms][meter^-3]
SNOW_DENSITY_3                 [kilograms][meter^-3]
PARM_VALUE_FLAGS               [none]
SNOW_TEMP                      [degrees Celsius]
SNOW_TEMP_HT                   [millimeters]
CRTFCN_CODE                    [none]
REVISION_DATE                  [DD-MON-YYYY]



7.3.4 Data Source


HYD03_SNOW_PITS_96_DATA

Column Name                             Data Source
------------------------------ ------------------------------------------------
SITE_NAME                      [Assigned by BORIS]
SUB_SITE                       [Assigned by BORIS]
DATE_OBS                       [Supplied by Investigator]
SNOW_LAYER_TOP_HT              [Supplied by Investigator]
SNOW_LAYER_BOTM_HT             [Supplied by Investigator]
SNOW_DENSITY_1                 [Supplied by Investigator]
SNOW_DENSITY_2                 [Supplied by Investigator]
SNOW_DENSITY_3                 [Supplied by Investigator]
PARM_VALUE_FLAGS               [Supplied by Investigator]
SNOW_TEMP                      [Supplied by Investigator]
SNOW_TEMP_HT                   [Supplied by Investigator]
CRTFCN_CODE                    [Assigned by Investigator]
REVISION_DATE                  [Assigned by Investigator]



7.3.5  Data Range


HYD03_SNOW_PITS_96_DATA

Minimum        Maximum        Missng  Unrel  Below   Data
                     Data           Data           Data    Data   Detect  Not
Column Name          Value          Value          Value   Value  Limit   Cllctd
--------------------------------------------------------------------------------
SITE_NAME            SSA-999-WSK04  SSA-WAT-FLXTR  None    None   None    None
SUB_SITE             HYD03-SPT01    HYD03-SPT01    None    None   None    None
DATE_OBS             29-FEB-1996    12-MAR-1996    None    None   None    None
SNOW_LAYER_TOP_HT    20             410            None    None   None    Blank
SNOW_LAYER_BOTM_HT   0              380            None    None   None    Blank
SNOW_DENSITY_1       114            397            None    None   None    Blank
SNOW_DENSITY_2       117            401            None    None   None    Blank
SNOW_DENSITY_3       119            322            None    None   None    Blank
PARM_VALUE_FLAGS     N/A            N/A            None    None   None    Blank
SNOW_TEMP            -21            0              None    None   None    Blank
SNOW_TEMP_HT         0              400            None    None   None    Blank
CRTFCN_CODE          CPI            CPI            None    None   None    None
REVISION_DATE        28-JAN-1997    28-JAN-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,SNOW_LAYER_TOP_HT,SNOW_LAYER_BOTM_HT,SNOW_DENSITY_1,
SNOW_DENSITY_2,SNOW_DENSITY_3,PARM_VALUE_FLAGS,SNOW_TEMP,SNOW_TEMP_HT,
CRTFCN_CODE,REVISION_DATE
'SSA-AGR-HYD03','HYD03-SPT01',01-MAR-1996,250,220,193,204,232,'',-6,240,'CPI',
28-JAN-1997
'SSA-AGR-HYD03','HYD03-SPT01',01-MAR-1996,220,190,175,201,,'',-5,200,'CPI',
28-JAN-1997
