BOREAS TE-04 Branch Bag Data from Boreal Tree Species

7.3 Data Characteristics


7.3 Data Characteristics                                                        
                                                                                

7.3.1 Parameter/Variable                                                        
                                                                                
The parameters contained in the data files are:                   
                                                                                
         Column Name                                                            
------------------------------                                                  
SITE_NAME                                                                       
SUB_SITE                                                                        
DATE_OBS                                                                        
TIME_OBS                                                                        
ATMOSPHERIC_PRESS                                                               
BOUND_LAYER_RESIST                                                              
AMB_WATER_VAPOR_PRESS                                                           
AMB_CO2_CONC                                                                    
AMB_AIR_TEMP                                                                    
DOWN_PPFD                                                                       
DOWN_SHORTWAVE_RAD                                                              
DOWN_LONGWAVE_RAD                                                               
LEAF_TEMP                                                                       
CO2_CONC_LEAF_SURF                                                              
REL_HUM_LEAF_SURF                                                               
INTERCELL_CO2_CONC                                                              
PHOTOSYNTHETIC_RATE                                                             
STOMATAL_MOLAR_CONDUCT_CO2                                                      
TRANSPIRATION_RATE                                                              
SPECIES                                                                         
CRTFCN_CODE                                                                     
REVISION_DATE                                                                   

                                                                                

7.3.2 Variable Description/Definition                                           
                                                                                
The descriptions of the parameters contained in the data files are:                                                                 
                                                                                
         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.                                      
ATMOSPHERIC_PRESS              The atmospheric pressure.                        
BOUND_LAYER_RESIST             Boundary layer resistance                        
AMB_WATER_VAPOR_PRESS          Ambient water vapor pressure                     
AMB_CO2_CONC                   Ambient CO2 concentration.                       
AMB_AIR_TEMP                   Ambient air temperature.                         
DOWN_PPFD                      The downward photosynthetic photon flux density. 
DOWN_SHORTWAVE_RAD             The total downward shortwave (solar) radiation.  
DOWN_LONGWAVE_RAD              The total downward longwave radiation.           
LEAF_TEMP                      The leaf or shoot temperature                    
CO2_CONC_LEAF_SURF             CO2 concentration at leaf surface.               
REL_HUM_LEAF_SURF              Relative humidity at leaf surface.               
INTERCELL_CO2_CONC             Intercellular CO2 concentration                  
PHOTOSYNTHETIC_RATE            Measured Net Photosynthesis                      
STOMATAL_MOLAR_CONDUCT_CO2     Stomatal conductance of CO2                      
TRANSPIRATION_RATE             Transpiration rate                               
SPECIES                        Botanical (Latin) name of the species (Genus 
                               species).                                           
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 are:                                                                 
                                                                                
         Column Name                                Units                       
------------------------------ ------------------------------------------------ 
SITE_NAME                      [none]                                           
SUB_SITE                       [none]                                           
DATE_OBS                       [DD-MON-YYYY]                                      
TIME_OBS                       [HHMM GMT]                                       
ATMOSPHERIC_PRESS              [kiloPascals]                                    
BOUND_LAYER_RESIST             [meters^2][second][mole^-1]                      
AMB_WATER_VAPOR_PRESS          [Pascals]                                        
AMB_CO2_CONC                   [micromoles CO2][mole^-1]                        
AMB_AIR_TEMP                   [degrees Celsius]                                
DOWN_PPFD                      [micromoles][meter^-2][second^-1]                
DOWN_SHORTWAVE_RAD             [Watts][meter^-2]                                
DOWN_LONGWAVE_RAD              [Watts][meter^-2]                                
LEAF_TEMP                      [degrees Celsius]                                
CO2_CONC_LEAF_SURF             [micromoles CO2][mole^-1]                        
REL_HUM_LEAF_SURF              [percent]                                        
INTERCELL_CO2_CONC             [parts per million]                              
PHOTOSYNTHETIC_RATE            [micromoles CO2][meter^-2][second^-1]            
STOMATAL_MOLAR_CONDUCT_CO2     [millimoles CO2][meter^-2][second^-1]            
TRANSPIRATION_RATE             [millimoles H2O][meter^-2][second^-1]            
SPECIES                        [none]                                           
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 are:                                                                 
                                                                                
         Column Name                             Data Source                    
------------------------------ ------------------------------------------------ 
SITE_NAME                      [BORIS Designation]                                
SUB_SITE                       [BORIS Designation]                                
DATE_OBS                       [Human Observer]                                
TIME_OBS                       [Human Observer]                                
ATMOSPHERIC_PRESS              [Laboratory Equipment]                                
BOUND_LAYER_RESIST             [Laboratory Equipment]                                
AMB_WATER_VAPOR_PRESS          [Laboratory Equipment]                                
AMB_CO2_CONC                   [Laboratory Equipment]                                
AMB_AIR_TEMP                   [Thermometer]                                
DOWN_PPFD                      [Laboratory Equipment]                                
DOWN_SHORTWAVE_RAD             [Laboratory Equipment]                                
DOWN_LONGWAVE_RAD              [Laboratory Equipment]                                
LEAF_TEMP                      [Thermometer]                                
CO2_CONC_LEAF_SURF             [Laboratory Equipment]                                
REL_HUM_LEAF_SURF              [Laboratory Equipment]                                
INTERCELL_CO2_CONC             [Laboratory Equipment]                                
PHOTOSYNTHETIC_RATE            [Laboratory Equipment]                                
STOMATAL_MOLAR_CONDUCT_CO2     [Laboratory Equipment]                                
TRANSPIRATION_RATE             [Laboratory Equipment]                                
SPECIES                        [Human Observer]                                
CRTFCN_CODE                    [BORIS Designation]                                
REVISION_DATE                  [BORIS Designation]                                

7.3.5  Data Range                                                               
                                                                                
The following table gives information about the parameter values found in       
the data files.                                                   

                     Minimum        Maximum        Missng  Unrel  Below   Data
                     Data           Data           Data    Data   Detect  Not
Column Name          Value          Value          Value   Value  Limit   Cllctd
--------------------------------------------------------------------------------
SITE_NAME            NSA-OBS-FLXTR  NSA-YJP-FLXTR  None    None   None    None 
SUB_SITE             9TE04-BAG01    9TE04-BAG01    None    None   None    None 
DATE_OBS             23-JUL-1996    14-AUG-1996    None    None   None    None 
TIME_OBS             0              2357           None    None   None    None 
ATMOSPHERIC_PRESS    97.79          101.3          None    None   None    None 
BOUND_LAYER_RESIST   .29            .29            None    None   None    None 
AMB_WATER_VAPOR_     624.87         4371.21        None    None   None    None 
PRESS
AMB_CO2_CONC         0              501.5          -999    None   None    None 
AMB_AIR_TEMP         -53.6          37.56          None    None   None    None 
DOWN_PPFD            0              1973.4         None    None   None    None 
DOWN_SHORTWAVE_RAD   0              841.17         None    None   None    None 
DOWN_LONGWAVE_RAD    131.75         528.55         None    None   None    None 
LEAF_TEMP            3.59           36.1           None    None   None    None 
CO2_CONC_LEAF_SURF   -14.3          506.7          -999    None   None    None 
REL_HUM_LEAF_SURF    0              99.92          -999    None   None    None 
INTERCELL_CO2_CONC   -87879         99999          -999    None   None    None 
PHOTOSYNTHETIC_RATE  -2.771         14.012         -999    None   None    None 
STOMATAL_MOLAR_      12.6           6560.9         -999    None   None    None 
CONDUCT_CO2
TRANSPIRATION_RATE   -.0033         4.67           -999    None   None    None 
SPECIES              N/A            N/A            None    None   None    None 
CRTFCN_CODE          CPI            CPI            None    None   None    None 
REVISION_DATE        03-FEB-1999    03-FEB-1999    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,ATMOSPHERIC_PRESS,BOUND_LAYER_RESIST,
AMB_WATER_VAPOR_PRESS,AMB_CO2_CONC,AMB_AIR_TEMP,DOWN_PPFD,DOWN_SHORTWAVE_RAD,
DOWN_LONGWAVE_RAD,LEAF_TEMP,CO2_CONC_LEAF_SURF,REL_HUM_LEAF_SURF,
INTERCELL_CO2_CONC,PHOTOSYNTHETIC_RATE,STOMATAL_MOLAR_CONDUCT_CO2,
TRANSPIRATION_RATE,SPECIES,CRTFCN_CODE,REVISION_DATE
'NSA-OBS-FLXTR','9TE04-BAG01',04-AUG-1996,0,97.79,.29,1417.95,355.6,30.85,556.3,
237.15,484.39,33.32,354.1,28.52,192.36,3.775,41.3,1.6193,'Picea mariana','CPI',
03-FEB-1999
'NSA-OBS-FLXTR','9TE04-BAG01',04-AUG-1996,4,97.79,.29,1408.17,355.4,30.64,532.9,
227.16,483.02,33.25,353.9,28.43,190.11,3.887,41.9,1.6379,'Picea mariana','CPI',
03-FEB-1999
