diff --git a/GEOMS-TE-DISDROMETER-001.csv b/GEOMS-TE-DISDROMETER-001.csv
index 3916b7e7035af46f8a4f69322c602723c878a595..181bfcb32a0a9bdeae83c2f5866e6038054c1438 100644
--- a/GEOMS-TE-DISDROMETER-001.csv
+++ b/GEOMS-TE-DISDROMETER-001.csv
@@ -5,8 +5,8 @@
 2,INTEGRATION.TIME,DATETIME,s,REAL,Integration time of disdrometer measurement,x
 2,PARTICLE.SIZE,PARTICLE.SIZE,mm,REAL,Average raindrop size for each bin,x
 2,PARTICLE.SIZE.BOUNDARIES,PARTICLE.SIZE;INDEPENDENT,mm,REAL,Lower and Upper raindrop sizes for each bin,x
-2,PARTICLE.SIZE.DISTRIBUTION,DATETIME;PARTICLE.SIZE,mm-1 m-3,REAL,quality-controlled particle size distribution (based on measured fall velocities) for each diameter bin each minute hydrometeors were detected,x
+2,PARTICLE.SIZE.DISTRIBUTION,DATETIME;PARTICLE.SIZE,mm-1 m-3,REAL,quality-controlled particle size distribution (based on theoretical fall velocities); distribution of the number of particles per unit volume and per unit diameter,x
 2,RAIN.RATE,DATETIME,mm h-1,REAL,measured rain rate,x
-2,PARTICLE.TYPE,DATETIME,[empty],STRING,Rain/Snow etc,o
-2,REFLECTIVITY,DATETIME,mm6 m-3,REAL,Reflectivity in Rayleigh regime,o
+2,PARTICLE.TYPE,DATETIME,[empty],STRING,precipitation type as classified by the disdrometer (list of values: Sensor error; No precipitation; Light drizzle; Moderate/heavy drizzle; Unknown precipitation; Light drizzle with rain; Moderate/heavy drizzle with rain; moderate/heavy rain; Light rain and/or drizzle with snow; Moderate/heavy rain and/or drizzle with snow; Snow grains; Light snowfall; Moderate/heavy snowfall; Soft hail/ice grains; Hail; Missing information),o
+2,REFLECTIVITY,DATETIME,mm6 m-3,REAL,Sixth moment of Particle Size Distribution,o
 2,SOURCE.PRODUCT,INDEPENDENT,[empty],STRING,Information relevant to the source history of the Metadata and Data,o