VAR_DESCRIPTION=datetime (UT), defined relative to reference datetime of Jan. 1, 2000 at 0:00:00 UT which is equal to 0.00
VAR_NOTES=initial time of each measurement
VAR_SIZE=1
VAR_DEPEND=DATETIME
VAR_DATA_TYPE=DOUBLE
VAR_UNITS=MJD2K
VAR_SI_CONVERSION=0.0;86400.0;s
VAR_VALID_MIN=-5500.000000000
VAR_VALID_MAX=8000.000000000
VAR_FILL_VALUE=-90000.000000000
!
! Variable Attributes
VAR_NAME=DATETIME.START
VAR_DESCRIPTION=datetime start (UT), defined relative to reference datetime of Jan. 1, 2000 at 0:00:00 UT which is equal to 0.00
VAR_NOTES=start time of the measurement sequence used for each retrieval
VAR_SIZE=1
VAR_DEPEND=DATETIME
VAR_DATA_TYPE=DOUBLE
VAR_UNITS=MJD2K
VAR_SI_CONVERSION=0.0;86400.0;s
VAR_VALID_MIN=-5500.000000000
VAR_VALID_MAX=8000.000000000
VAR_FILL_VALUE=-90000.000000000
!
! Variable Attributes
VAR_NAME=DATETIME.STOP
VAR_DESCRIPTION=datetime stop (UT), defined relative to reference datetime of Jan. 1, 2000 at 0:00:00 UT which is equal to 0.00
VAR_NOTES=End time of the measurement sequence used for each retrieval
VAR_SIZE=1
VAR_DEPEND=DATETIME
VAR_DATA_TYPE=DOUBLE
VAR_UNITS=MJD2K
VAR_SI_CONVERSION=0.0;86400.0;s
VAR_VALID_MIN=-5500.000000000
VAR_VALID_MAX=8000.000000000
VAR_FILL_VALUE=-90000.000000000
!
! Variable Attributes
VAR_NAME=INTEGRATION.TIME
VAR_DESCRIPTION=duration of the measurement corresponding to the profile
VAR_NOTES=
VAR_SIZE=1
VAR_DEPEND=DATETIME
VAR_DATA_TYPE=REAL
VAR_UNITS=s
VAR_SI_CONVERSION=0.0;1.0;s
VAR_VALID_MIN=0.000000E+00
VAR_VALID_MAX=2.560000E+04
VAR_FILL_VALUE=-9.000000E+04
!
! Variable Attributes
VAR_NAME=LATITUDE.INSTRUMENT
VAR_DESCRIPTION=latitude north (decimal degrees) of the location of the instrument
VAR_NOTES=sign convention: + for north and - for south
VAR_SIZE=1
VAR_DEPEND=CONSTANT
VAR_DATA_TYPE=REAL
VAR_UNITS=deg
VAR_SI_CONVERSION=0.0;1.74533E-2;rad
VAR_VALID_MIN=-9.000000E+01
VAR_VALID_MAX=9.000000E+01
VAR_FILL_VALUE=-9.000000E+04
!
! Variable Attributes
VAR_NAME=LONGITUDE.INSTRUMENT
VAR_DESCRIPTION=longitude east (decimal degrees) of the location of the instrument
VAR_NOTES=sign convention: + for east and - for west
VAR_SIZE=1
VAR_DEPEND=CONSTANT
VAR_DATA_TYPE=REAL
VAR_UNITS=deg
VAR_SI_CONVERSION=0.0;1.74533E-2;rad
VAR_VALID_MIN=-1.800000E+02
VAR_VALID_MAX=1.800000E+02
VAR_FILL_VALUE=-9.000000E+04
!
! Variable Attributes
VAR_NAME=ALTITUDE.INSTRUMENT
VAR_DESCRIPTION=altitude of the instrument relative to the location site
VAR_NOTES=
VAR_SIZE=1
VAR_DEPEND=CONSTANT
VAR_DATA_TYPE=REAL
VAR_UNITS=m
VAR_SI_CONVERSION=0.0;1.0;m
VAR_VALID_MIN=-5.000000E-02
VAR_VALID_MAX=5.000000E+03
VAR_FILL_VALUE=-9.000000E+04
!
! Variable Attributes
VAR_NAME=ALTITUDE
VAR_DESCRIPTION=Grid of altitude levels upon which the retrieved target profile as well as pressure and temperature profiles are reported
VAR_NOTES=these altitudes are the centers of the retrieval altitude layers (geometric mean between the 2 layer boundaries); the reported number densities, P and T are effective layer values.
VAR_SIZE=47
VAR_DEPEND=ALTITUDE
VAR_DATA_TYPE=REAL
VAR_UNITS=km
VAR_SI_CONVERSION=0.0;1.0E3;m
VAR_VALID_MIN=0.000000E+00
VAR_VALID_MAX=1.200000E+02
VAR_FILL_VALUE=-9.000000E+04
!
! Variable Attributes
VAR_NAME=PRESSURE_INDEPENDENT
VAR_DESCRIPTION=Total effective air pressures in layers for vertical profile retrieval
VAR_NOTES=Pressure/temperature profiles are taken NCEP; the pressure values represent the effective pressure in each layer and are reported at the center altitude of each layer
VAR_DESCRIPTION=effective air temperatures in layers for vertical profile retrieval
VAR_NOTES=Pressure/temperature profiles are taken from NCEP; the pressure values represent the effective pressure in each layer and are reported at the center altitude of each layer
VAR_DESCRIPTION=Vertical profile of partial columns of dry air number densities (for conversion between VMR and partial column profile)
VAR_NOTES=
VAR_SIZE=47;1
VAR_DEPEND=ALTITUDE;DATETIME
VAR_DATA_TYPE=REAL
VAR_UNITS=molec cm-2
VAR_SI_CONVERSION=0.0;1.66054E-20;mol m-2
VAR_VALID_MIN=0.000000E+00
VAR_VALID_MAX=2.000000E+25
VAR_FILL_VALUE=-9.000000E+04
!
! Variable Attributes
VAR_NAME=COLUMN.PARTIAL_INDEPENDENT_SOURCE
VAR_DESCRIPTION=Partial columns of air source (e.g. NCEP; Sonde; ECMWF etc.)
VAR_NOTES=
VAR_SIZE=1
VAR_DEPEND=CONSTANT
VAR_DATA_TYPE=STRING
VAR_UNITS=
VAR_SI_CONVERSION=
VAR_VALID_MIN=
VAR_VALID_MAX=
VAR_FILL_VALUE=
!
! Variable Attributes
VAR_NAME=ALTITUDE.BOUNDARIES
VAR_DESCRIPTION=2D matrix providing the layer boundaries used for vertical profile retrieval
VAR_NOTES=The retrieved partial columns are given at the center between the boundaries provided in this vector.The lower most boundary is at the altitude of the site
VAR_SIZE=2;47
VAR_DEPEND=INDEPENDENT;ALTITUDE
VAR_DATA_TYPE=REAL
VAR_UNITS=km
VAR_SI_CONVERSION=0.0;1.0E3;m
VAR_VALID_MIN=0.000000E+00
VAR_VALID_MAX=1.200000E+02
VAR_FILL_VALUE=-9.000000E+04
!
! Variable Attributes
VAR_NAME=ANGLE.SOLAR_ZENITH.ASTRONOMICAL
VAR_DESCRIPTION=astronomical zenith angle of the sun
VAR_NOTES=
VAR_SIZE=1
VAR_DEPEND=DATETIME
VAR_DATA_TYPE=REAL
VAR_UNITS=deg
VAR_SI_CONVERSION=0.0;1.74533E-2;rad
VAR_VALID_MIN=0.000000E+00
VAR_VALID_MAX=1.800000E+02
VAR_FILL_VALUE=-9.000000E+04
!
! Variable Attributes
VAR_NAME=ANGLE.SOLAR_AZIMUTH
VAR_DESCRIPTION=azimuth angle of the sun (O at South, pos. to East, neg. to West)
VAR_NOTES=
VAR_SIZE=1
VAR_DEPEND=DATETIME
VAR_DATA_TYPE=REAL
VAR_UNITS=deg
VAR_SI_CONVERSION=0.0;1.74533E-2;rad
VAR_VALID_MIN=0.000000E+00
VAR_VALID_MAX=3.600000E+02
VAR_FILL_VALUE=-9.000000E+04
!
! Variable Attributes
VAR_NAME=ANGLE.VIEW_AZIMUTH
VAR_DESCRIPTION=pointing azimuth angle of the MAXDOAS (O at South, pos. to East, neg. to West)
VAR_NOTES=
VAR_SIZE=1
VAR_DEPEND=DATETIME
VAR_DATA_TYPE=REAL
VAR_UNITS=deg
VAR_SI_CONVERSION=0.0;1.74533E-2;rad
VAR_VALID_MIN=0.000000E+00
VAR_VALID_MAX=3.600000E+02
VAR_FILL_VALUE=-9.000000E+04
!
! Variable Attributes
VAR_NAME=ANGLE.VIEW_ZENITH
VAR_DESCRIPTION=pointing zenith angle of the MAXDOAS
VAR_NOTES=
VAR_SIZE=1
VAR_DEPEND=DATETIME
VAR_DATA_TYPE=REAL
VAR_UNITS=deg
VAR_SI_CONVERSION=0.0;1.74533E-2;rad
VAR_VALID_MIN=0.000000E+00
VAR_VALID_MAX=1.800000E+02
VAR_FILL_VALUE=-9.000000E+04
!
! Variable Attributes
VAR_NAME=LATITUDE
VAR_DESCRIPTION=Latitude of the effective air mass. Values are given for each altitude layer (ALTITUDE)
VAR_NOTES=sign convention: + for north and - for south
VAR_SIZE=47;1
VAR_DEPEND=ALTITUDE;DATETIME
VAR_DATA_TYPE=REAL
VAR_UNITS=deg
VAR_SI_CONVERSION=0.0;1.74533E-2;rad
VAR_VALID_MIN=-9.000000E+01
VAR_VALID_MAX=9.000000E+01
VAR_FILL_VALUE=-9.000000E+04
!
! Variable Attributes
VAR_NAME=LONGITUDE
VAR_DESCRIPTION=Longitude of the effective air mass. Values are given for each altitude layer (ALTITUDE)
VAR_NOTES=sign convention: + for east and - for west
VAR_SIZE=47;1
VAR_DEPEND=ALTITUDE;DATETIME
VAR_DATA_TYPE=REAL
VAR_UNITS=deg
VAR_SI_CONVERSION=0.0;1.74533E-2;rad
VAR_VALID_MIN=-1.800000E+02
VAR_VALID_MAX=1.800000E+02
VAR_FILL_VALUE=-9.000000E+04
!
! Variable Attributes
VAR_NAME=CLOUD.CONDITIONS
VAR_DESCRIPTION=Possible Values: clear-sky; thin clouds; thick clouds; broken clouds; [empty]. [empty] means that the cloud retrieval is not successful or not possible