BOREAS TE-09 In Situ Diurnal Gas Exchange of NSA Boreal Forest Stands

7.3 Data Characteristics                                                        
                                                                                

7.3.1 Parameter/Variable                                                        
                                                                                
         Column Name                                                            
------------------------------                                                  
SITE_NAME                                                                       
SUB_SITE                                                                        
DATE_OBS                                                                        
TIME_OBS                                                                        
SPECIES                                                                         
SAMPLE_BRANCH_NUM                                                               
CANOPY_LOCATION                                                                 
WATER_POTENTIAL                                                                 
PHOTOSYNTHETIC_RATE                                                             
STOMATAL_CONDUCT_H20                                                            
STOMATAL_CONDUCT_CO2                                                            
INTERCELL_CO2_CONC                                                              
TRANSPIRATION_RATE                                                              
WATER_USE_EFF                                                                   
MESOPHYL_CONDUCT_CO2                                                            
INTERCELL_AMB_CO2_RATIO                                                         
DOWN_PPFD                                                                       
AIR_TEMP_CHAMBER                                                                
LEAF_TEMP                                                                       
CO2_CONC                                                                        
AIR_FLOW_RATE                                                                   
REL_HUM_CHAMBER                                                                 
VAPOR_PRESS_CHAMBER                                                             
LST_SQR_SLOPE_VAPOR_PRESS                                                       
LST_SQR_SLOPE_CO2_CONC                                                          
VAPOR_PRESS_DEFICIT                                                             
ATMOSPHERIC_PRESS                                                               
LEAF_AREA                                                                       
LEAF_BOUND_LAYER_CONDUCT                                                        
STOMATAL_CONDUCT_RATIO                                                          
INST_WATER_ABSORB_FACTOR                                                        
NEEDLE_AREA_1994                                                                
NEEDLE_AREA_1993                                                                
NEEDLE_SILHOU_AREA_1994                                                         
NEEDLE_SILHOU_AREA_1993                                                         
TOTAL_NEEDLE_SILHOU_AREA                                                        
LICOR_VOLUME                                                                    
IRGA_HOSE_VOLUME                                                                
MAX_FLOW_RATE                                                                   
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 
                               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.                                      
                                                                                
SPECIES                        Botanical (Latin) name of the species (Genus 
                               species).                                           
                                                                                
SAMPLE_BRANCH_NUM              The branch number sampled.  When sample= ambient 
                               this represents no branch and is used for a 
                               check on the ambient conditions where 
                               measurements are being taken.                                 
                                                                                
CANOPY_LOCATION                Location in the canopy from which the sample was 
                               taken.                                          
                                                                                
WATER_POTENTIAL                Water Potential                                  
PHOTOSYNTHETIC_RATE            Measured Net Photosynthesis                      
STOMATAL_CONDUCT_H20           Stomatal conductance of water vapor.             
STOMATAL_CONDUCT_CO2           Stomatal conductance of CO2                      
INTERCELL_CO2_CONC             Intercellular CO2 concentration                  
TRANSPIRATION_RATE             Transpiration rate                               
WATER_USE_EFF                  Water use efficiency                             
MESOPHYL_CONDUCT_CO2           Mesophyll CO2 conductance.                       
INTERCELL_AMB_CO2_RATIO        The ratio of intercellular CO2 concentration and 
                               ambient CO2 concentration.                      
                                                                                
DOWN_PPFD                      The downward photosynthetic photon flux density. 
AIR_TEMP_CHAMBER               The measured temperature of the air in the 
                               chamber.                                              
                                                                                
LEAF_TEMP                      The measured leaf or shoot temperature           
CO2_CONC                       CO2 concentration.                               
AIR_FLOW_RATE                  Air flow rate through the dessicant              
REL_HUM_CHAMBER                The measured relative humidity of the air in the 
                               chamber.                                        
                                                                                
VAPOR_PRESS_CHAMBER            Vapor pressure of the air in the chamber.        
LST_SQR_SLOPE_VAPOR_PRESS      The calculated least squares slope of vapor 
                               pressure in relation to time for the observation.    
                                                                                
LST_SQR_SLOPE_CO2_CONC         The calculated least squares slope of CO2 as a 
                               function of time for the observation.             
                                                                                
VAPOR_PRESS_DEFICIT            Vapor Pressure Deficit                           
ATMOSPHERIC_PRESS              The atmospheric pressure.                        
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.                        
                                                                                
LEAF_BOUND_LAYER_CONDUCT       The one-sided leaf boundary layer conductance.   
                               This is a function of leaf size and type of
                               chamber.                                             
                                                                                
STOMATAL_CONDUCT_RATIO         Ratio of stomatal conductance of one side of the 
                               leaf to the other.                              
                                                                                
INST_WATER_ABSORB_FACTOR       Instrument water absorption factor.  (In brief:
                               (from the LI-6200 Technical Reference Manual) 
                               Kabs (water absorption factor) is used to 
                               calculate the transpiration rate and is simply 
                               defined as an absorption coefficient.  With no 
                               leaf in the chamber, it is based on things like: 
                               flow through dessicant, vapor pressure of air, 
                               chamber air temperature, atmospheric pressure, 
                               total volume, and rate of change of vapor 
                               pressure of air.)              
NEEDLE_AREA_1994               Leaf area for foliage that developed in 1994 
                               based on a total leaf area basis.  (This does not
                               apply to aspen).                                  
                                                                                
NEEDLE_AREA_1993               Leaf area for foliage that developed during and  
                               before 1993 based on a total leaf area basis.  T 
                               his does not apply to aspen foliage.             
                                                                                
NEEDLE_SILHOU_AREA_1994        The area of the silhouette of the shoots that 
                               developed in 1994.                                 
                                                                                
NEEDLE_SILHOU_AREA_1993        The area of the silhouette of the shoots that  
                               developed during and before 1993.                  
                                                                                
TOTAL_NEEDLE_SILHOU_AREA       The total area of the silhouette of all the 
                               shoots.                                              
                                                                                
LICOR_VOLUME                   Li-Cor system volume, including LI-6250 gas  
                               analyzer, the LI-6200 consol, chamber and tubing.    
                                                                                
IRGA_HOSE_VOLUME               The volume of the IRGA and hose.                 
MAX_FLOW_RATE                  Maximum flow rate of air.                        
CRTFCN_CODE                    The BOREAS certification level of the data.  Exa 
                               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]                                           
DATE_OBS                       [DD-MON-YYYY]                                      
TIME_OBS                       [HHMM GMT]                                       
SPECIES                        [none]                                           
SAMPLE_BRANCH_NUM              [unitless]                                       
CANOPY_LOCATION                [none]                                           
WATER_POTENTIAL                [megaPascals]                                    
PHOTOSYNTHETIC_RATE            [micromoles CO2][meter^-2][second^-1]            
STOMATAL_CONDUCT_H20           [millimoles H2O][meter^-2][second^-1]            
STOMATAL_CONDUCT_CO2           [millimoles CO2][meter^-2][second^-1]            
INTERCELL_CO2_CONC             [parts per million]                              
TRANSPIRATION_RATE             [millimoles H2O][meter^-2][second^-1]            
WATER_USE_EFF                  [micromoles CO2][millimole H20^-1]               
MESOPHYL_CONDUCT_CO2           [millimoles CO2][meter^-2][second^-1]            
INTERCELL_AMB_CO2_RATIO        [millimoles CO2][meter^-2][second^-1][parts per  
                                million CO2^-1]                                  
                                                                                
DOWN_PPFD                      [micromoles][meter^-2][second^-1]                
AIR_TEMP_CHAMBER               [degrees Celsius]                                
LEAF_TEMP                      [degrees Celsius]                                
CO2_CONC                       [parts per million]                              
AIR_FLOW_RATE                  [micromoles][second^-1]                          
REL_HUM_CHAMBER                [percent]                                        
VAPOR_PRESS_CHAMBER            [millibars]                                      
LST_SQR_SLOPE_VAPOR_PRESS      [unitless]                                       
LST_SQR_SLOPE_CO2_CONC         [unitless]                                       
VAPOR_PRESS_DEFICIT            [kiloPascals]                                    
ATMOSPHERIC_PRESS              [kiloPascals]                                    
LEAF_AREA                      [millimeter^2]                                   
LEAF_BOUND_LAYER_CONDUCT       [mole][meter^-2][second^-1]                      
STOMATAL_CONDUCT_RATIO         [unitless]                                       
INST_WATER_ABSORB_FACTOR       [unitless]                                       
NEEDLE_AREA_1994               [millimeter^2]                                   
NEEDLE_AREA_1993               [millimeter^2]                                   
NEEDLE_SILHOU_AREA_1994        [millimeter^2]                                   
NEEDLE_SILHOU_AREA_1993        [millimeter^2]                                   
TOTAL_NEEDLE_SILHOU_AREA       [millimeter^2]                                   
LICOR_VOLUME                   [millimeter^3]                                   
IRGA_HOSE_VOLUME               [millimeter^3]                                   
MAX_FLOW_RATE                  [micromoles]                                     
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]                                
DATE_OBS                       [Human Observer]                                
TIME_OBS                       [Human Observer]                                
SPECIES                        [Human Observer]                                
SAMPLE_BRANCH_NUM              [Human Observer]                                
CANOPY_LOCATION                [Human Observer]                                
WATER_POTENTIAL                [Laboratory Equipment]                                
PHOTOSYNTHETIC_RATE            [Laboratory Equipment]                                
STOMATAL_CONDUCT_H20           [Laboratory Equipment]                                
STOMATAL_CONDUCT_CO2           [Laboratory Equipment]                                
INTERCELL_CO2_CONC             [Laboratory Equipment]                                
TRANSPIRATION_RATE             [Laboratory Equipment]                                
WATER_USE_EFF                  [Laboratory Equipment]                                
MESOPHYL_CONDUCT_CO2           [Laboratory Equipment]                                
INTERCELL_AMB_CO2_RATIO        [Laboratory Equipment]                                
DOWN_PPFD                      [Laboratory Equipment]                                
AIR_TEMP_CHAMBER               [Thermometer]                                
LEAF_TEMP                      [Thermometer]                                
CO2_CONC                       [Laboratory Equipment]                                
AIR_FLOW_RATE                  [Laboratory Equipment]                                
REL_HUM_CHAMBER                [Laboratory Equipment]                                
VAPOR_PRESS_CHAMBER            [Laboratory Equipment]                                
LST_SQR_SLOPE_VAPOR_PRESS      [Laboratory Equipment]                                
LST_SQR_SLOPE_CO2_CONC         [Laboratory Equipment]                                
VAPOR_PRESS_DEFICIT            [Laboratory Equipment]                                
ATMOSPHERIC_PRESS              [Laboratory Equipment]                                
LEAF_AREA                      [Laboratory Equipment]                                
LEAF_BOUND_LAYER_CONDUCT       [Laboratory Equipment]                                
STOMATAL_CONDUCT_RATIO         [Laboratory Equipment]                                
INST_WATER_ABSORB_FACTOR       [Laboratory Equipment]                                
NEEDLE_AREA_1994               [Laboratory Equipment]                                
NEEDLE_AREA_1993               [Laboratory Equipment]                                
NEEDLE_SILHOU_AREA_1994        [Laboratory Equipment]                                
NEEDLE_SILHOU_AREA_1993        [Laboratory Equipment]                                
TOTAL_NEEDLE_SILHOU_AREA       [Laboratory Equipment]                                
LICOR_VOLUME                   [Laboratory Equipment]                                
IRGA_HOSE_VOLUME               [Laboratory Equipment]                                
MAX_FLOW_RATE                  [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-GSE01    9TE09-GSE01    None    None   None    None 
DATE_OBS             27-MAY-1994    14-SEP-1994    None    None   None    None 
TIME_OBS             746            1913           None    None   None    None 
SPECIES              N/A            N/A            None    None   None    None 
SAMPLE_BRANCH_NUM    1              AMBIENT        None    None   None    None 
CANOPY_LOCATION      1.1            UPPER          None    None   None    Blank
WATER_POTENTIAL      0              3.7            -999    None   None    Blank
PHOTOSYNTHETIC_RATE  -22.08         27.927         None    None   None    Blank
STOMATAL_CONDUCT_H20 .12            536            None    None   None    Blank
STOMATAL_CONDUCT_CO2 .000074        335            None    None   None    Blank
INTERCELL_CO2_CONC   -263.7         3413.873       None    None   None    Blank
TRANSPIRATION_RATE   .003798        7.3765         None    None   None    Blank
WATER_USE_EFF        -107.69        65.35501       None    None   None    Blank
MESOPHYL_CONDUCT_CO2 -100.91        614.1414       -999    None   None    Blank
INTERCELL_AMB_CO2_   -3.73463       9.15638        None    None   None    Blank
RATIO               
DOWN_PPFD            14.4           1868.5         None    None   None    None 
AIR_TEMP_CHAMBER     9.46           34.72          None    None   None    None 
LEAF_TEMP            8.273          36.243         None    None   None    None 
CO2_CONC             274.63         789.5          None    None   None    None 
AIR_FLOW_RATE        171.03         600            None    None   None    None 
REL_HUM_CHAMBER      15.737         81.993         None    None   None    None 
VAPOR_PRESS_CHAMBER  5.321          26.65          None    None   None    None 
LST_SQR_SLOPE_VAPOR_ -.03445        .14183         None    None   None    Blank
PRESS              
LST_SQR_SLOPE_CO2_   -1.10587       1.07107        None    None   None    None 
CONC 
VAPOR_PRESS_DEFICIT  .214133        3.896          None    None   None    None 
ATMOSPHERIC_PRESS    979.9          987            None    None   None    None 
LEAF_AREA            1              163.9          None    None   None    None 
LEAF_BOUND_LAYER_    1.3            1.6            None    None   None    None 
CONDUCT             
STOMATAL_CONDUCT_    0              1              None    None   None    None 
RATIO               
INST_WATER_ABSORB_   1.05           2.35           None    None   None    None 
FACTOR              
NEEDLE_AREA_1994     .91            112.14         None    None   None    Blank
NEEDLE_AREA_1993     9.94           121.95         None    None   None    Blank
NEEDLE_SILHOU_AREA_  .7745          14.24          None    None   None    Blank
1994                
NEEDLE_SILHOU_AREA_  2.2826         19.0773        -999    None   None    Blank
1993                
TOTAL_NEEDLE_SILHOU_ .91            66.05          -999    None   None    Blank
AREA                
LICOR_VOLUME         414            1149           None    None   None    None 
IRGA_HOSE_VOLUME     154            154            None    None   None    None 
MAX_FLOW_RATE        1180           1290           None    None   None    None 
CRTFCN_CODE          CPI            CPI            None    None   None    None 
REVISION_DATE        10-JUL-1997    12-SEP-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,TIME_OBS,SPECIES,SAMPLE_BRANCH_NUM,CANOPY_LOCATION,
WATER_POTENTIAL,PHOTOSYNTHETIC_RATE,STOMATAL_CONDUCT_H20,STOMATAL_CONDUCT_CO2,
INTERCELL_CO2_CONC,TRANSPIRATION_RATE,WATER_USE_EFF,MESOPHYL_CONDUCT_CO2,
INTERCELL_AMB_CO2_RATIO,DOWN_PPFD,AIR_TEMP_CHAMBER,LEAF_TEMP,CO2_CONC,
AIR_FLOW_RATE,REL_HUM_CHAMBER,VAPOR_PRESS_CHAMBER,LST_SQR_SLOPE_VAPOR_PRESS,
LST_SQR_SLOPE_CO2_CONC,VAPOR_PRESS_DEFICIT,ATMOSPHERIC_PRESS,LEAF_AREA,
LEAF_BOUND_LAYER_CONDUCT,STOMATAL_CONDUCT_RATIO,INST_WATER_ABSORB_FACTOR,
NEEDLE_AREA_1994,NEEDLE_AREA_1993,NEEDLE_SILHOU_AREA_1994,
NEEDLE_SILHOU_AREA_1993,TOTAL_NEEDLE_SILHOU_AREA,LICOR_VOLUME,IRGA_HOSE_VOLUME,
MAX_FLOW_RATE,CRTFCN_CODE,REVISION_DATE
'NSA-9OA-9TETR','9TE09-GSE01',03-SEP-1994,1034,'Populus tremuloides','AMBIENT',
'UPPER',,-.01967,,,356.9667,,-.53457,.064738,1.011571,732.267,20.62,19.15,
352.87,270,42.587,10.343,-.002,.00323,1.394,979.9,50,1.3,0,1.78,,,,,,1149,154,
1230,'CPI',10-JUL-1997
'NSA-9OA-9TETR','9TE09-GSE01',03-SEP-1994,1139,'Populus tremuloides','AMBIENT',
'UPPER',,.3926,,,327.7333,,.605335,1.203405,.931064,1210.333,22.02,21.15,352,
270.43,36.04,9.543,.0095,-.04897,1.692333,979.9,50,1.3,0,1.78,,,,,,1149,154,
1230,'CPI',10-JUL-1997
