BOREAS HYD-03 Snow Water Equivalent: 1996

7.3 Data Characteristics

7.3.1 Parameter/Variable


HYD03_SWE_96_DATA

Column Name
------------------------------
SITE_NAME
SUB_SITE
DATE_OBS
SAMPLE_ID
SNOW_DEPTH
CAN_SNOW_SAMPLER_SWE
SNOW_DENSITY
TREE_ZONE
COMMENTS
REVISION_DATE
CRTFCN_CODE



7.3.2 Variable Description/Definition


HYD03_SWE_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.
SAMPLE_ID                      The sample identifier used by data collectors.
SNOW_DEPTH                     The depth of snow on the ground.
CAN_SNOW_SAMPLER_SWE           This is the snow water equivalent that was
                               measured from the Canadian snow sampler.
SNOW_DENSITY                   The density of the snow.
TREE_ZONE                      The relative location of the snow measurements
                               with respect to a tree or the trees around it.
COMMENTS                       Descriptive information to clarify or enhance
                               the understanding of the other entered data.
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


HYD03_SWE_96_DATA

Column Name                                Units
------------------------------ ------------------------------------------------
SITE_NAME                      [none]
SUB_SITE                       [none]
DATE_OBS                       [DD-MON-YYYY]
SAMPLE_ID                      [none]
SNOW_DEPTH                     [millimeters]
CAN_SNOW_SAMPLER_SWE           [millimeters]
SNOW_DENSITY                   [kilograms][meter^-3]
TREE_ZONE                      [none]
COMMENTS                       [none]
REVISION_DATE                  [DD-MON-YYYY]
CRTFCN_CODE                    [none]



7.3.4 Data Source


HYD03_SWE_96_DATA

Column Name                             Data Source
------------------------------ ------------------------------------------------
SITE_NAME                      [Assigned by BORIS]
SUB_SITE                       [Assigned by BORIS]
DATE_OBS                       [Supplied by Investigator]
SAMPLE_ID                      [Supplied by Investigator]
SNOW_DEPTH                     [Supplied by Investigator]
CAN_SNOW_SAMPLER_SWE           [Supplied by Investigator]
SNOW_DENSITY                   [Supplied by Investigator]
TREE_ZONE                      [Supplied by Investigator]
COMMENTS                       [Supplied by Investigator]
REVISION_DATE                  [Assigned by BORIS]
CRTFCN_CODE                    [Assigned by BORIS]



7.3.5  Data Range


HYD03_SWE_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-9OA-FLXTR  SSA-OJP-HYD03  None    None   None    None
SUB_SITE             HYD03-SWE01    HYD03-SWE01    None    None   None    None
DATE_OBS             29-FEB-1996    05-MAR-1996    None    None   None    None
SAMPLE_ID            1              20             None    None   None    None
SNOW_DEPTH           230            510            None    None   None    None
CAN_SNOW_SAMPLER_SWE 30             90             None    None   None    None
SNOW_DENSITY         100            217            None    None   None    None
TREE_ZONE            N/A            N/A            None    None   None    None
COMMENTS             N/A            N/A            None    None   None    None
REVISION_DATE        31-JAN-1997    31-JAN-1997    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

SITE_NAME,SUB_SITE,DATE_OBS,SAMPLE_ID,SNOW_DEPTH,CAN_SNOW_SAMPLER_SWE,
SNOW_DENSITY,TREE_ZONE,COMMENTS,REVISION_DATE,CRTFCN_CODE
'SSA-AGR-HYD03','HYD03-SWE01',01-MAR-1996,'1',240,50,208,'NONE','random',
31-JAN-1997,'CPI'
'SSA-AGR-HYD03','HYD03-SWE01',01-MAR-1996,'2',260,50,192,'NONE','random',
31-JAN-1997,'CPI'
