diff --git a/GEOMS-TE-LIDAR-O3-005.csv b/GEOMS-TE-LIDAR-O3-005.csv
index 670c7e6d6ef638065ef12fdd2e0967a5df6fd149..a464484656e8f6487bc2265a9369dd8d1f8b5f0a 100644
--- a/GEOMS-TE-LIDAR-O3-005.csv
+++ b/GEOMS-TE-LIDAR-O3-005.csv
@@ -1,30 +1,30 @@
-2,LATITUDE.INSTRUMENT,CONSTANT,deg,REAL,Inst. geolocation (+ for north
-2,LONGITUDE.INSTRUMENT,CONSTANT,deg,REAL,Inst. geolocation (+ for east
+2,LATITUDE.INSTRUMENT,CONSTANT,deg,REAL,Inst. geolocation (+ for north; - for south),x
+2,LONGITUDE.INSTRUMENT,CONSTANT,deg,REAL,Inst. geolocation (+ for east; - for west),x
 2,ALTITUDE.INSTRUMENT,CONSTANT,m,REAL,Inst. geolocation,x
 2,DATETIME,DATETIME,MJD2K,DOUBLE,Weighted meas. Time,x
 2,DATETIME.START,DATETIME,MJD2K,DOUBLE,Meas. start,x
 2,DATETIME.STOP,DATETIME,MJD2K,DOUBLE,Meas. stop,x
 2,INTEGRATION.TIME,DATETIME,h,REAL,Actual integration time,x
 2,ALTITUDE,ALTITUDE,m,REAL,Actual meas. grid (increasing),x
-2,O3.NUMBER.DENSITY_ABSORPTION.DIFFERENTIAL,[ALTITUDE|DATETIME
-2,O3.NUMBER.DENSITY_ABSORPTION.DIFFERENTIAL_UNCERTAINTY.COMBINED.STANDARD,[ALTITUDE|DATETIME
-2,O3.NUMBER.DENSITY_ABSORPTION.DIFFERENTIAL_UNCERTAINTY.RANDOM.STANDARD,[ALTITUDE|DATETIME
-2,O3.NUMBER.DENSITY_ABSORPTION.DIFFERENTIAL_UNCERTAINTY.SYSTEMATIC.STANDARD,[ALTITUDE|DATETIME
-2,O3.NUMBER.DENSITY_ABSORPTION.DIFFERENTIAL_RESOLUTION.ALTITUDE.IMPULSE.RESPONSE.FWHM,[ALTITUDE|DATETIME
-2,O3.MIXING.RATIO.VOLUME_DERIVED,[ALTITUDE|DATETIME
-2,O3.MIXING.RATIO.VOLUME_DERIVED_UNCERTAINTY.COMBINED.STANDARD,[ALTITUDE|DATETIME
-2,O3.MIXING.RATIO.VOLUME_DERIVED_UNCERTAINTY.RANDOM.STANDARD,[ALTITUDE|DATETIME
-2,O3.MIXING.RATIO.VOLUME_DERIVED_UNCERTAINTY.SYSTEMATIC.STANDARD,[ALTITUDE|DATETIME
-2,PRESSURE_INDEPENDENT,[ALTITUDE|DATETIME
-2,TEMPERATURE_INDEPENDENT,[ALTITUDE|DATETIME
-2,PRESSURE_INDEPENDENT_SOURCE,[CONSTANT|ALTITUDE|DATETIME
-2,TEMPERATURE_INDEPENDENT_SOURCE,[CONSTANT|ALTITUDE|DATETIME
-2,O3.NUMBER.DENSITY_ABSORPTION.DIFFERENTIAL_RESOLUTION.ALTITUDE.DF.CUTOFF,[ALTITUDE|DATETIME
-2,O3.NUMBER.DENSITY_ABSORPTION.DIFFERENTIAL_RESOLUTION.ALTITUDE.ORIGINATOR,[ALTITUDE|DATETIME
-2,O3.NUMBER.DENSITY_ABSORPTION.DIFFERENTIAL_UNCERTAINTY.ORIGINATOR,[ALTITUDE|DATETIME
-2,O3.MIXING.RATIO.VOLUME_DERIVED_UNCERTAINTY.ORIGINATOR,[ALTITUDE|DATETIME
+2,O3.NUMBER.DENSITY_ABSORPTION.DIFFERENTIAL,[ALTITUDE|DATETIME;ALTITUDE],molec m-3,REAL,"Core, measured variable",x
+2,O3.NUMBER.DENSITY_ABSORPTION.DIFFERENTIAL_UNCERTAINTY.COMBINED.STANDARD,[ALTITUDE|DATETIME;ALTITUDE],molec m-3,REAL,Uncertainty: NDACC-lidar-standardized definition,x
+2,O3.NUMBER.DENSITY_ABSORPTION.DIFFERENTIAL_UNCERTAINTY.RANDOM.STANDARD,[ALTITUDE|DATETIME;ALTITUDE],molec m-3,REAL,Random uncertainty: NDACC-lidar-standardized definition,x
+2,O3.NUMBER.DENSITY_ABSORPTION.DIFFERENTIAL_UNCERTAINTY.SYSTEMATIC.STANDARD,[ALTITUDE|DATETIME;ALTITUDE],molec m-3,REAL,Systematic uncertainty: NDACC-lidar-standardized definition,x
+2,O3.NUMBER.DENSITY_ABSORPTION.DIFFERENTIAL_RESOLUTION.ALTITUDE.IMPULSE.RESPONSE.FWHM,[ALTITUDE|DATETIME;ALTITUDE],m,REAL,Vertical resolution: Full-width at half-maximum (FWHM) of impulse response,x
+2,O3.MIXING.RATIO.VOLUME_DERIVED,[ALTITUDE|DATETIME;ALTITUDE],ppmv,REAL,Derived (specify if vmr is wrt dry or wet air),x
+2,O3.MIXING.RATIO.VOLUME_DERIVED_UNCERTAINTY.COMBINED.STANDARD,[ALTITUDE|DATETIME;ALTITUDE],ppmv,REAL,Uncertainty: NDACC-lidar-standardized definition,x
+2,O3.MIXING.RATIO.VOLUME_DERIVED_UNCERTAINTY.RANDOM.STANDARD,[ALTITUDE|DATETIME;ALTITUDE],ppmv,REAL,Random uncertainty: NDACC-lidar-standardized definition,x
+2,O3.MIXING.RATIO.VOLUME_DERIVED_UNCERTAINTY.SYSTEMATIC.STANDARD,[ALTITUDE|DATETIME;ALTITUDE],ppmv,REAL,Systematic uncertainty: NDACC-lidar-standardized definition,x
+2,PRESSURE_INDEPENDENT,[ALTITUDE|DATETIME;ALTITUDE],hPa,REAL,Pressure profile used to derive mixing ratio,x
+2,TEMPERATURE_INDEPENDENT,[ALTITUDE|DATETIME;ALTITUDE],K,REAL,Temperature profile used to derive mixing ratio,x
+2,PRESSURE_INDEPENDENT_SOURCE,[CONSTANT|ALTITUDE|DATETIME;ALTITUDE],[empty],STRING,Pressure profile source (e.g. Lidar; NCEP; Sonde; ECMWF etc.),x
+2,TEMPERATURE_INDEPENDENT_SOURCE,[CONSTANT|ALTITUDE|DATETIME;ALTITUDE],[empty],STRING,Temperature profile source (e.g. Lidar; NCEP; Sonde; ECMWF etc.),x
+2,O3.NUMBER.DENSITY_ABSORPTION.DIFFERENTIAL_RESOLUTION.ALTITUDE.DF.CUTOFF,[ALTITUDE|DATETIME;ALTITUDE],m,REAL,Vertical resolution: NDACC-lidar-standardized based on digital filter cut-off frequency,o
+2,O3.NUMBER.DENSITY_ABSORPTION.DIFFERENTIAL_RESOLUTION.ALTITUDE.ORIGINATOR,[ALTITUDE|DATETIME;ALTITUDE],m,REAL,Vertical resolution: PI's historical definition,o
+2,O3.NUMBER.DENSITY_ABSORPTION.DIFFERENTIAL_UNCERTAINTY.ORIGINATOR,[ALTITUDE|DATETIME;ALTITUDE],molec m-3,REAL,Uncertainty: Following PI's historical definition,o
+2,O3.MIXING.RATIO.VOLUME_DERIVED_UNCERTAINTY.ORIGINATOR,[ALTITUDE|DATETIME;ALTITUDE],ppmv,REAL,Uncertainty: Following PI's historical definition,o
 2,O3.NUMBER.DENSITY_ABSORPTION.DIFFERENTIAL_RESOLUTION.ALTITUDE.DF.NORMALIZED.FREQUENCY,O3.NUMBER.DENSITY_ABSORPTION.DIFFERENTIAL_RESOLUTION.ALTITUDE.DF.NORMALIZED.FREQUENCY,1,REAL,Normalized frequency (in 1/bins) to use with Transfer Function (Nyquist=0.5),o
-2,O3.NUMBER.DENSITY_ABSORPTION.DIFFERENTIAL_RESOLUTION.ALTITUDE.DF.TRANSFER.FUNCTION,[O3.NUMBER.DENSITY_ABSORPTION.DIFFERENTIAL_RESOLUTION.ALTITUDE.DF.NORMALIZED.FREQUENCY
+2,O3.NUMBER.DENSITY_ABSORPTION.DIFFERENTIAL_RESOLUTION.ALTITUDE.DF.TRANSFER.FUNCTION,[O3.NUMBER.DENSITY_ABSORPTION.DIFFERENTIAL_RESOLUTION.ALTITUDE.DF.NORMALIZED.FREQUENCY;ALTITUDE|DATETIME;O3.NUMBER.DENSITY_ABSORPTION.DIFFERENTIAL_RESOLUTION.ALTITUDE.DF.NORMALIZED.FREQUENCY;ALTITUDE],1,REAL,Transfer Function of Digital Filter used,o
 2,O3.NUMBER.DENSITY_ABSORPTION.DIFFERENTIAL_RESOLUTION.ALTITUDE.DISTANCE.FROM.IMPULSE,O3.NUMBER.DENSITY_ABSORPTION.DIFFERENTIAL_RESOLUTION.ALTITUDE.DISTANCE.FROM.IMPULSE,1,REAL,Distance from impulse (in bins) to use with Impulse Response (0 at location of Impulse),o
-2,O3.NUMBER.DENSITY_ABSORPTION.DIFFERENTIAL_RESOLUTION.ALTITUDE.IMPULSE.RESPONSE,[O3.NUMBER.DENSITY_ABSORPTION.DIFFERENTIAL_RESOLUTION.ALTITUDE.DISTANCE.FROM.IMPULSE
-2,SOURCE.PRODUCT,INDEPENDENT,[empty],STRING,Information relevant to the source history of the Metadata and Data,o
\ No newline at end of file
+2,O3.NUMBER.DENSITY_ABSORPTION.DIFFERENTIAL_RESOLUTION.ALTITUDE.IMPULSE.RESPONSE,[O3.NUMBER.DENSITY_ABSORPTION.DIFFERENTIAL_RESOLUTION.ALTITUDE.DISTANCE.FROM.IMPULSE;ALTITUDE|DATETIME;O3.NUMBER.DENSITY_ABSORPTION.DIFFERENTIAL_RESOLUTION.ALTITUDE.DISTANCE.FROM.IMPULSE;ALTITUDE],1,REAL,Vertical resolution: impulse response,o
+2,SOURCE.PRODUCT,INDEPENDENT,[empty],STRING,Information relevant to the source history of the Metadata and Data,o