BOREAS TE-05 Leaf Gas Exchange Data

7.3 Data Characteristics                                                        
                                                                                
7.3.1 Parameter/Variable                                                        
                                                                                
The parameters contained in the data files on the CD-ROM are:                   
                                                                                
         Column Name                                                            
------------------------------                                                  
SITE_NAME                                                                       
SUB_SITE                                                                        
START_DATE                                                                      
START_TIME                                                                      
END_DATE                                                                        
END_TIME                                                                        
SPECIES                                                                         
NUM_OBS                                                                         
LEAF_AREA                                                                       
SHAPE_FACTOR                                                                    
MEAN_CO2_FLUX                                                                   
SDEV_CO2_FLUX                                                                   
MEAN_STOMATAL_CONDUCT_CO2                                                       
SDEV_STOMATAL_CONDUCT_CO2                                                       
MEAN_LEAF_TEMP                                                                  
SDEV_LEAF_TEMP                                                                  
CO2_CONC_CHAMBER                                                                
SDEV_CO2_CONC_CHAMBER                                                           
MEAN_CO2_PRESS_CHAMBER                                                          
SDEV_CO2_PRESS_CHAMBER                                                          
MEAN_ATMOSPHERIC_CO2_PRESS                                                      
MEAN_INTERCELL_CO2_CONC                                                         
SDEV_INTERCELL_CO2_CONC                                                         
MEAN_INTERCELL_CO2_PRESS                                                        
SDEV_INTERCELL_CO2_PRESS                                                        
MEAN_AIR_TEMP_CHAMBER                                                           
SDEV_AIR_TEMP_CHAMBER                                                           
MEAN_VAPOR_PRESS_CHAMBER                                                        
SDEV_VAPOR_PRESS_CHAMBER                                                        
LEAF_BOUND_LAYER_CONDUCT                                                        
MEAN_DOWN_PPFD                                                                  
SDEV_DOWN_PPFD                                                                  
CRTFCN_CODE                                                                     
REVISION_DATE                                                                   
COMMENTS                                                                        

                                                                                

7.3.2 Variable Description/Definition                                           
                                                                                
The descriptions of the parameters contained in the data files on               
the CD-ROM 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.                                           
START_DATE                     The date on which the collection of data 
                               commenced.                                              
START_TIME                     The starting Greenwich Mean Time (GMT) for the 
                               data collected.                                   
END_DATE                       The date on which the collection of the data was 
                               terminated.                                     
END_TIME                       The ending Greenwich Mean Time (GMT) for the 
                               data collected.                                     
SPECIES                        Botanical (Latin) name of the species (Genus 
                               species).                                           
NUM_OBS                        Number of observations of the given sample used  
                               to calculate given measurements.                 
LEAF_AREA                      The area of the leaf (or needles) enclosed in
                               the chamber, this value is always half the total 
                               surface area of the sample.                       
SHAPE_FACTOR                   Shape Factor.                                     
MEAN_CO2_FLUX                  Mean of the daily CO2 flux measurements.         
SDEV_CO2_FLUX                  Standard deviation of the daily CO2 flux 
                               measurements.                                       
MEAN_STOMATAL_CONDUCT_CO2      The mean stomatal conductance of CO2.            
SDEV_STOMATAL_CONDUCT_CO2      Standard deviation of the stomatal conductance 
                               of CO2.                                           
MEAN_LEAF_TEMP                 The mean leaf temperature.                      
SDEV_LEAF_TEMP                 Standard deviation of the leaf temperature.       
CO2_CONC_CHAMBER               The CO2 concentration in the chamber.            
SDEV_CO2_CONC_CHAMBER          The standard deviation of the CO2 concentration  
                               in the chamber.                                 
MEAN_CO2_PRESS_CHAMBER         The mean CO2 pressure in the chamber.            
SDEV_CO2_PRESS_CHAMBER         The standard deviation of the CO2 pressure in  
                               the chamber.                                       
MEAN_ATMOSPHERIC_CO2_PRESS     Mean atmospheric CO2 pressure.                   
MEAN_INTERCELL_CO2_CONC        Mean intercellular CO2 concentration.             
SDEV_INTERCELL_CO2_CONC        Standard deviation of intercellular CO2
                               concentration.                                           
MEAN_INTERCELL_CO2_PRESS       Mean intercellular CO2 pressure.                 
SDEV_INTERCELL_CO2_PRESS       The standard deviation of the intercellular CO2  
                               pressure.                                        
MEAN_AIR_TEMP_CHAMBER          The mean air temperature in the chamber.         
SDEV_AIR_TEMP_CHAMBER          The standard deviation of the air temperature in 
                               the chamber.                                    
MEAN_VAPOR_PRESS_CHAMBER       The mean vapor pressure in the chamber.          
SDEV_VAPOR_PRESS_CHAMBER       The standard deviation of the vapor pressure in  
                               the chamber.                                     
LEAF_BOUND_LAYER_CONDUCT       The one-sided leaf boundary layer conductance.   
                               This is a function of leaf size and type of 
                               chamber.                                             
MEAN_DOWN_PPFD                 The mean downward photosynthetic photon flux 
                               density.                                            
SDEV_DOWN_PPFD                 The standard deviation of the downward 
                               photosynthetic photon flux density.                       
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.  
COMMENTS                       Descriptive information to clarify or enhance 
                               the understanding of the other entered data.       
                                                                                

7.3.3 Unit of Measurement                                                       
                                                                                
The measurement units for the parameters contained in the data files on         
the CD-ROM are:                                                                 
                                                                                
         Column Name                                Units                       
------------------------------ ------------------------------------------------ 
SITE_NAME                      [none]                                           
SUB_SITE                       [none]                                           
START_DATE                     [DD-MON-YYYY]                                      
START_TIME                     [HHMM GMT]                                       
END_DATE                       [DD-MON-YYYY]                                      
END_TIME                       [HHMM GMT]                                       
SPECIES                        [none]                                           
NUM_OBS                        [counts]                                         
LEAF_AREA                      [millimeter^2]                                   
SHAPE_FACTOR                   [unitless]                                       
MEAN_CO2_FLUX                  [micromoles][meter^-2][second^-1]                
SDEV_CO2_FLUX                  [micromoles][meter^-2][second^-1]                
MEAN_STOMATAL_CONDUCT_CO2      [mole][meter^-2][second^-1]                      
SDEV_STOMATAL_CONDUCT_CO2      [mole][meter^-2][second^-1]                      
MEAN_LEAF_TEMP                 [degrees Celsius]                                
SDEV_LEAF_TEMP                 [degrees Celsius]                                
CO2_CONC_CHAMBER               [parts per million]                              
SDEV_CO2_CONC_CHAMBER          [parts per million]                              
MEAN_CO2_PRESS_CHAMBER         [Pascals]                                        
SDEV_CO2_PRESS_CHAMBER         [Pascals]                                        
MEAN_ATMOSPHERIC_CO2_PRESS     [unitless]                                       
MEAN_INTERCELL_CO2_CONC        [parts per million]                              
SDEV_INTERCELL_CO2_CONC        [parts per million]                              
MEAN_INTERCELL_CO2_PRESS       [Pascals]                                        
SDEV_INTERCELL_CO2_PRESS       [Pascals]                                        
MEAN_AIR_TEMP_CHAMBER          [degrees Celsius]                                
SDEV_AIR_TEMP_CHAMBER          [degrees Celsius]                                
MEAN_VAPOR_PRESS_CHAMBER       [Pascals]                                        
SDEV_VAPOR_PRESS_CHAMBER       [Pascals]                                        
LEAF_BOUND_LAYER_CONDUCT       [mole][meter^-2][second^-1]                      
MEAN_DOWN_PPFD                 [microEinsteins][meter^-2][second^-1]            
SDEV_DOWN_PPFD                 [microEinsteins][meter^-2][second^-1]            
CRTFCN_CODE                    [none]                                           
REVISION_DATE                  [DD-MON-YYYY]                                      
COMMENTS                       [none]                                           

                                                                                

7.3.4 Data Source                                                               
                                                                                
The source of the parameter values contained in the data files on               
the CD-ROM are:                                                                 
                                                                                
         Column Name                             Data Source                    
------------------------------ ------------------------------------------------ 
SITE_NAME                      [BORIS Designation]                                
SUB_SITE                       [BORIS Designation]                                
START_DATE                     [Human Observer]                                
START_TIME                     [Human Observer]                                
END_DATE                       [Human Observer]                                
END_TIME                       [Human Observer]                                
SPECIES                        [Human Observer]                                
NUM_OBS                        [Human Observer]                                
LEAF_AREA                      [Laboratory Equipment]                                
SHAPE_FACTOR                   [Laboratory Equipment]                                
MEAN_CO2_FLUX                  [Laboratory Equipment]                              
SDEV_CO2_FLUX                  [Laboratory Equipment]                                
MEAN_STOMATAL_CONDUCT_CO2      [Laboratory Equipment]                          
SDEV_STOMATAL_CONDUCT_CO2      [Laboratory Equipment]                                
MEAN_LEAF_TEMP                 [Thermometer]                                
SDEV_LEAF_TEMP                 [Thermometer]             
CO2_CONC_CHAMBER               [Laboratory Equipment]                                
SDEV_CO2_CONC_CHAMBER          [Laboratory Equipment]                                
MEAN_CO2_PRESS_CHAMBER         [Laboratory Equipment]                                
SDEV_CO2_PRESS_CHAMBER         [Laboratory Equipment]                                
MEAN_ATMOSPHERIC_CO2_PRESS     [Laboratory Equipment]                                
MEAN_INTERCELL_CO2_CONC        [Laboratory Equipment]                                
SDEV_INTERCELL_CO2_CONC        [Laboratory Equipment]                                
MEAN_INTERCELL_CO2_PRESS       [Laboratory Equipment]                                
SDEV_INTERCELL_CO2_PRESS       [Laboratory Equipment]                                
MEAN_AIR_TEMP_CHAMBER          [Thermometer]                                
SDEV_AIR_TEMP_CHAMBER          [Thermometer]                                
MEAN_VAPOR_PRESS_CHAMBER       [Laboratory Equipment]                                
SDEV_VAPOR_PRESS_CHAMBER       [Laboratory Equipment]                                
LEAF_BOUND_LAYER_CONDUCT       [Laboratory Equipment]                                
MEAN_DOWN_PPFD                 [Laboratory Equipment]                                
SDEV_DOWN_PPFD                 [Laboratory Equipment]                                
CRTFCN_CODE                    [BORIS Designation]                          
REVISION_DATE                  [Human Observer]                                
COMMENTS                       [Human Observer]                                

                                                                                

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

                     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  SSA-OJP-FLXTR  None    None   None    None 
SUB_SITE             9TE05-LGS01    9TE05-LGS01    None    None   None    None 
START_DATE           06-JUN-1994    13-SEP-1994    None    None   None    None 
START_TIME           400            1500           None    None   None    None 
END_DATE             07-JUN-1994    13-SEP-1994    None    None   None    None 
END_TIME             430            2300           None    None   None    None 
SPECIES              N/A            N/A            None    None   None    None 
NUM_OBS              5              64             None    None   None    None 
LEAF_AREA            370            4170           None    None   None    None 
SHAPE_FACTOR         4              4.1            -999    None   None    None 
MEAN_CO2_FLUX        .0000014       .000015        None    None   None    None 
SDEV_CO2_FLUX        .00000064      .00000284      None    None   None    None 
MEAN_STOMATAL_       .017           .272           None    None   None    None 
CONDUCT_CO2         
SDEV_STOMATAL_       .0064          .047           None    None   None    None 
CONDUCT_CO2         
MEAN_LEAF_TEMP       19             32.45          None    None   None    None 
SDEV_LEAF_TEMP       .5             6.33           None    None   None    None 
CO2_CONC_CHAMBER     303.6          351.7          None    None   None    None 
SDEV_CO2_CONC_       2.3            16.48          None    None   None    None 
CHAMBER             
MEAN_CO2_PRESS_      35.95          38.739         -999    None   None    None 
CHAMBER             
SDEV_CO2_PRESS_      .313           1.73           -999    None   None    None 
CHAMBER             
MEAN_ATMOSPHERIC_CO2_ 97700          98800          -999    None   None    None 
PRESS               
MEAN_INTERCELL_CO2_  194            264.44         None    None   None    None 
CONC                
SDEV_INTERCELL_CO2_  8.6            53.7           None    None   None    None 
CONC                
MEAN_INTERCELL_CO2_  21.23          27.71          -999    None   None    None 
PRESS               
SDEV_INTERCELL_CO2_  3.514          5.696          -999    None   None    None 
PRESS               
MEAN_AIR_TEMP_       19             31.7           None    None   None    None 
CHAMBER             
SDEV_AIR_TEMP_       .5             5.77           None    None   None    None 
CHAMBER             
MEAN_VAPOR_PRESS_    626.172        1779           None    None   None    None 
CHAMBER             
SDEV_VAPOR_PRESS_    62.9           192            -999    None   None    None 
CHAMBER             
LEAF_BOUND_LAYER_    2.4            3.2            -999    None   None    None 
CONDUCT            
MEAN_DOWN_PPFD       551            1673           None    None   None    None 
SDEV_DOWN_PPFD       213            819            None    None   None    None 
CRTFCN_CODE          CPI            CPI            None    None   None    None 
REVISION_DATE        06-FEB-1998    06-FEB-1998    None    None   None    None 
COMMENTS             N/A            N/A            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,START_TIME,END_DATE,END_TIME,SPECIES,NUM_OBS,
LEAF_AREA,SHAPE_FACTOR,MEAN_CO2_FLUX,SDEV_CO2_FLUX,MEAN_STOMATAL_CONDUCT_CO2,
SDEV_STOMATAL_CONDUCT_CO2,MEAN_LEAF_TEMP,SDEV_LEAF_TEMP,CO2_CONC_CHAMBER,
SDEV_CO2_CONC_CHAMBER,MEAN_CO2_PRESS_CHAMBER,SDEV_CO2_PRESS_CHAMBER,
MEAN_ATMOSPHERIC_CO2_PRESS,MEAN_INTERCELL_CO2_CONC,SDEV_INTERCELL_CO2_CONC,
MEAN_INTERCELL_CO2_PRESS,SDEV_INTERCELL_CO2_PRESS,MEAN_AIR_TEMP_CHAMBER,
SDEV_AIR_TEMP_CHAMBER,MEAN_VAPOR_PRESS_CHAMBER,SDEV_VAPOR_PRESS_CHAMBER,
LEAF_BOUND_LAYER_CONDUCT,MEAN_DOWN_PPFD,SDEV_DOWN_PPFD,CRTFCN_CODE,
REVISION_DATE,COMMENTS
'NSA-9BS-9TETR','9TE05-LGS01',08-JUN-1994,1500,08-JUN-1994,2200,'Picea mariana',
18,1380.0,4.0,.00000195,.00000088,.025,.0092,31.88,4.12,345.57,2.86,37.84,.313,
98500,203.9,42.1,22.33,4.611,30.5,3.43,626.172,62.9,3.2,1134.0,646.1,'CPI',
06-FEB-1998,'Hemi-surface area'
'NSA-9BS-9TETR','9TE05-LGS01',26-JUL-1994,1500,29-JUL-1994,2300,'Picea mariana',
60,850.0,4.0,.0000014,.00000064,.017,.0064,32.45,2.07,351.3,7.95,38.739,.877,
98800,208.87,31.9,23.03,3.514,31.7,1.56,1197.82,72.4,3.2,595.0,524.0,'CPI',
06-FEB-1998,'Hemi-surface area'

