BOREAS TE-09 Photosynthetic Capacity and Foliage Nitrogen Data

7.3 Data Characteristics

7.3.1 Parameter/Variable                                                        
                                                                                
         Column Name                                                            
------------------------------                                                  
SITE_NAME                                                                       
SUB_SITE                                                                        
START_DATE                                                                      
END_DATE                                                                        
SPECIES                                                                         
PHOTOSYNTHETIC_RATE                                                             
NITROGEN_CONC                                                                   
NITROGEN_DENSITY                                                                
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 BOREA 
                               S, 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.                                           
START_DATE                     The date on which the collection of the reference 
                               data commenced.                                
END_DATE                       The date on which the collection of the 
                               referenced data was terminated.                          
SPECIES                        Botanical (Latin) name of the species (Genus 
                               species).                                           
PHOTOSYNTHETIC_RATE            Measured Net Photosynthesis                      
NITROGEN_CONC                  The nitrogen concentration of the foliage dry  
                               mass sample.                                       
NITROGEN_DENSITY               Nitrogen per unit hemi-surface area.             
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]                                           
START_DATE                     [DD-MON-YYYY]                                      
END_DATE                       [DD-MON-YYYY]                                      
SPECIES                        [none]                                           
PHOTOSYNTHETIC_RATE            [micromoles][meter^-2][second^-1]                
NITROGEN_CONC                  [milligrams][gram^-1]                            
NITROGEN_DENSITY               [grams][meter^-2]                                
CRTFCN_CODE                    [none]                                           
REVISION_DATE                  [DD-MON-YYYY]                                      


7.3.4 Data Source                                                               
                                                                                
         Column Name                             Data Source                    
------------------------------ ------------------------------------------------ 
SITE_NAME                      BORIS Designation                                
SUB_SITE                       BORIS Designation                                
START_DATE                     BORIS Designation                                
END_DATE                       BORIS Designation                                
SPECIES                        Human Observer                                
PHOTOSYNTHETIC_RATE            Laboratory Equipment                                
NITROGEN_CONC                  Laboratory Equipment                             
NITROGEN_DENSITY               Laboratory Equipment                             
CRTFCN_CODE                    BORIS Designation                             
REVISION_DATE                  BORIS Designation                                


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            NSA-9BS-9TETR  NSA-YJP-FLXTR  None    None   None    None 
SUB_SITE             9TE09-NPH01    9TE09-NPH01    None    None   None    None 
START_DATE           24-MAY-1994    30-AUG-1994    None    None   None    None 
END_DATE             16-JUN-1994    19-SEP-1994    None    None   None    None 
SPECIES              N/A            N/A            None    None   None    None 
PHOTOSYNTHETIC_RATE  .562           15.213         None    None   None    None 
NITROGEN_CONC        4.06           46.35          None    None   None    None 
NITROGEN_DENSITY     .6             6.5            None    None   None    None 
CRTFCN_CODE          CPI            CPI            None    None   None    None 
REVISION_DATE        19-SEP-1996    19-SEP-1996    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,START_DATE,END_DATE,SPECIES,PHOTOSYNTHETIC_RATE,
NITROGEN_CONC,NITROGEN_DENSITY,CRTFCN_CODE,REVISION_DATE
'NSA-9OA-9TETR','9TE09-NPH01',30-AUG-1994,19-SEP-1994,'Populus tremuloides',
4.754,22.58,2.1,'CPI', 19-SEP-1996
'NSA-9OA-9TETR','9TE09-NPH01',19-JUL-1994,08-AUG-1994,'Populus tremuloides',
9.426,29.27,1.7,'CPI', 19-SEP-1996
