BOREAS Level-3s SPOT Imagery: Scaled At-Sensor Radiance in LGSOWG Format

7.3 Data Characteristics

7.3.1 Parameter/Variable

The parameters contained in the inventory listing file on the CD-ROM are:
------------------------------
SPATIAL_COVERAGE
DATE_OBS
START_TIME
END_TIME
PLATFORM
INSTRUMENT
NUM_BANDS
BAND_QUALITY
CLOUD_COVER
PATH_NUM
ROW_NUM
NW_LATITUDE
NW_LONGITUDE
NE_LATITUDE
NE_LONGITUDE
SW_LATITUDE
SW_LONGITUDE
SE_LATITUDE
SE_LONGITUDE
PLATFORM_ALTITUDE
MIN_SOLAR_ZEN_ANG
MAX_SOLAR_ZEN_ANG
MIN_SOLAR_AZ_ANG
MAX_SOLAR_AZ_ANG
CRTFCN_CODE

7.3.2 Variable Description/Definition

The descriptions of the parameters contained in the inventory listing file are:

         Column Name                             Description
------------------------------ ------------------------------------------------
SPATIAL_COVERAGE               The general term used to denote the spatial area
                               over which the data were collected.
DATE_OBS                       The date on which the data were collected.
START_TIME                     The starting Greenwich Mean Time (GMT) for the
                               data collected.
END_TIME                       The ending Greenwich Mean Time (GMT) for the 
                               data collected.
PLATFORM                       The object (e.g., satellite, aircraft, tower, 
                               person) that supported the instrument.
INSTRUMENT                     The name of the device used to make the 
                               measurements.
NUM_BANDS                      The number of spectral bands in the data.
BAND_QUALITY                   The data analyst's assessment of the quality of
                               the spectral bands in the data.
CLOUD_COVER                    The data analyst's assessment of the cloud cover
                               that exists in the data.
PATH_NUM                       For Landsat and SPOT, the sequential number 
                               given to the orbital paths trending from
                               northeast to southwest and extending around the 
                               earth.
ROW_NUM                        For Landsat and SPOT, the sequential number 
                               given to the nominal scene acquisition points 
                               along the orbital paths which trend from 
                               northeast to southwest.
NW_LATITUDE                    The NAD83 based latitude coordinate of the north-
                               west corner of the minimum bounding rectangle
                               for the data.                                      
NW_LONGITUDE                   The NAD83 based longitude coordinate of the
                               northwest corner of the minimum bounding 
                               rectangle for the data.                                      
NE_LATITUDE                    The NAD83 based latitude coordinate of the north
                               east corner of the minimum bounding rectangle for
                               the data.                                      
NE_LONGITUDE                   The NAD83 based longitude coordinate of the 
                               north east corner of the minimum bounding 
                               rectangle for the data.                                     
SW_LATITUDE                    The NAD83 based latitude coordinate of the south 
                               west corner of the minimum bounding rectangle for 
                               the data.                                      
SW_LONGITUDE                   The NAD83 based longitude coordinate of the 
                               southwest corner of the minimum bounding 
                               rectangle for  the data.                                     
SE_LATITUDE                    The NAD83 based latitude coordinate of the south 
                               east corner of the minimum bounding rectangle for 
                               the data.                                      
SE_LONGITUDE                   The NAD83 based longitude coordinate of the 
                               southeast corner of the minimum bounding 
                               rectangle for the data.                                     
PLATFORM_ALTITUDE              The nominal altitude of the data collection plat
                               form above the target.
MIN_SOLAR_ZEN_ANG              The minimum angle from the surface normal
                               (straight up) to the sun during the data 
                               collection.   
MAX_SOLAR_ZEN_ANG              The maximum angle from the surface normal
                               (straight up) to the sun during the data 
                               collection.   
MIN_SOLAR_AZ_ANG               The minimum azimuthal direction of the sun
                               during data collection expressed in clockwise 
                               increments from North.                                  
MAX_SOLAR_AZ_ANG               The maximum azimuthal direction of the sun
                               during data collection expressed in clockwise
                               increments from North.                                  
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

The measurement units for the parameters contained in the inventory listing file 
are:

         Column Name                                Units
------------------------------ ------------------------------------------------
SPATIAL_COVERAGE               [none]
DATE_OBS                       [DD-MON-YYYY]
START_TIME                     [HHMM GMT]
END_TIME                       [HHMM GMT]
PLATFORM                       [none]
INSTRUMENT                     [none]
NUM_BANDS                      [counts]
BAND_QUALITY                   [none]
CLOUD_COVER                    [none]
PATH_NUM                       [unitless]
ROW_NUM                        [unitless]
NW_LATITUDE                    [degrees]
NW_LONGITUDE                   [degrees]
NE_LATITUDE                    [degrees]
NE_LONGITUDE                   [degrees]
SW_LATITUDE                    [degrees]
SW_LONGITUDE                   [degrees]
SE_LATITUDE                    [degrees]
SE_LONGITUDE                   [degrees]
PLATFORM_ALTITUDE              [meters]
MIN_SOLAR_ZEN_ANG              [degrees]
MAX_SOLAR_ZEN_ANG              [degrees]
MIN_SOLAR_AZ_ANG               [degrees]
MAX_SOLAR_AZ_ANG               [degrees]
CRTFCN_CODE                    [none]


7.3.4 Data Source

The source of the parameter values contained in the inventory listing file are:

         Column Name                             Data Source
------------------------------ ------------------------------------------------
SPATIAL_COVERAGE               [Determined by BORIS software from latitude and 
                                longitude information contained on the level-3s 
                                data files.]
DATE_OBS                       [Determined by BORIS software from data and time 
                                information contained on the level-3s data 
                                files.]
START_TIME                     [Determined by BORIS software from data and time 
                                information contained on the level-3s data 
                                files.]
END_TIME                       [Determined by BORIS software from data and time 
                                information contained on the level-3s data 
                                files.]
PLATFORM                       [Determined by BORIS software from platform 
                                information contained on the level-3s data 
                                files.]
INSTRUMENT                     [Constant software value]
NUM_BANDS                      [Determined by BORIS software from processing of 
                                the data files.]
BAND_QUALITY                   [Assessed by BORIS personnel from viewing the 
                                image.]
CLOUD_COVER                    [Assessed by BORIS personnel from viewing the 
                                image.]
PATH_NUM                       [Determined by BORIS software from location 
                                information contained on the level-3s data 
                                files.]
ROW_NUM                        [Determined by BORIS software from location 
                                information contained on the level-3s data 
                                files.]
NW_LATITUDE                    [Determined by BORIS software from location 
                                information contained on the level-3s data 
                                files.]
NW_LONGITUDE                   [Determined by BORIS software from location 
                                information contained on the level-3s data 
                                files.]
NE_LATITUDE                    [Determined by BORIS software from location 
                                information contained on the level-3s data 
                                files.]
NE_LONGITUDE                   [Determined by BORIS software from location 
                                information contained on the level-3s data 
                                files.]
SW_LATITUDE                    [Determined by BORIS software from location 
                                information contained on the level-3s data 
                                files.]
SW_LONGITUDE                   [Determined by BORIS software from location 
                                information contained on the level-3s data 
                                files.]
SE_LATITUDE                    [Determined by BORIS software from location 
                                information contained on the level-3s data 
                                files.]
SE_LONGITUDE                   [Determined by BORIS software from location 
                                information contained on the level-3s data 
                                files.]
PLATFORM_ALTITUDE              [Determined by BORIS software from platform 
                                information contained on the level-3s data 
                                files.]
MIN_SOLAR_ZEN_ANG              [Calculated with software from latitude and 
                               longitude and time information]
MAX_SOLAR_ZEN_ANG              [Calculated with software from latitude and 
                               longitude and time information]
MIN_SOLAR_AZ_ANG               [Calculated with software from latitude and 
                               longitude and time information]
MAX_SOLAR_AZ_ANG               [Calculated with software from latitude and 
                               longitude and time information]
CRTFCN_CODE                    [Assigned by BORIS based on processing.]


7.3.5 Data Range

The following table gives information about the parameter values found in the 
inventory table.


                     Minimum        Maximum        Missng  Unrel  Below   Data
                     Data           Data           Data    Data   Detect  Not
Column Name          Value          Value          Value   Value  Limit   Cllctd
--------------------------------------------------------------------------------
SPATIAL_COVERAGE     N/A            N/A            None    None   None    None
DATE_OBS             17-APR-1994    30-AUG-1996    None    None   None    None
START_TIME           1729           1839           None    None   None    None
END_TIME             1729           1839           None    None   None    None
PLATFORM             SPOT 2         SPOT 3         None    None   None    None
INSTRUMENT           N/A            N/A            None    None   None    None
NUM_BANDS            3              3              None    None   None    None
BAND_QUALITY         N/A            N/A            None    None   None    None
CLOUD_COVER          N/A            N/A            None    None   None    None
PATH_NUM             550            566            None    None   None    None
ROW_NUM              236            241            None    None   None    None
NW_LATITUDE          53.9705        56.30094       None    None   None    None
NW_LONGITUDE         -106.42326     -97.80651      None    None   None    None
NE_LATITUDE          53.82529       56.16124       None    None   None    None
NE_LONGITUDE         -105.53683     -96.75452      None    None   None    None
SW_LATITUDE          53.44538       55.791         None    None   None    None
SW_LONGITUDE         -106.69194     -98.04481      None    None   None    None
SE_LATITUDE          53.31475       55.64067       None    None   None    None
SE_LONGITUDE         -105.81544     -97.03178      None    None   None    None
PLATFORM_ALTITUDE    0              833914         None    None   None    None
MIN_SOLAR_ZEN_ANG    31.2           53.7           None    None   None    None
MAX_SOLAR_ZEN_ANG    31.2           53.7           None    None   None    None
MIN_SOLAR_AZ_ANG     153.7          178.2          None    None   None    None
MAX_SOLAR_AZ_ANG     153.7          178.2          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

SPATIAL_COVERAGE,DATE_OBS,START_TIME,END_TIME,PLATFORM,INSTRUMENT,NUM_BANDS,
BAND_QUALITY,CLOUD_COVER,PATH_NUM,ROW_NUM,NW_LATITUDE,NW_LONGITUDE,
NE_LATITUDE,NE_LONGITUDE,SW_LATITUDE,SW_LONGITUDE,SE_LATITUDE,SE_LONGITUDE,
PLATFORM_ALTITUDE,MIN_SOLAR_ZEN_ANG,MAX_SOLAR_ZEN_ANG,MIN_SOLAR_AZ_ANG,
MAX_SOLAR_AZ_ANG,CRTFCN_CODE
'SSA',17-APR-1994,1800,1800,'SPOT 2','HRV-2',3,'NOT ASSESSED',
'NOT ASSESSED',553,241,54.1706,-105.51248,54.04471,-104.44787,53.64516,
-105.72139,53.52115,-104.66936,822145.0,44.8,44.8,160.5,160.5,'CPI'
'SSA',21-APR-1994,1824,1824,'SPOT 2','HRV-2',3,'NOT ASSESSED',
'NOT ASSESSED',550,241,54.12612,-106.42326,53.98357,-105.53683,53.61036,
-106.69194,53.46976,-105.81544,822145.0,42.6,42.6,167.2,167.2,'CPI'
