diff --git a/NumericalData/AMDA/SWARM-A/GNSS/swarma-gps-all.xml b/NumericalData/AMDA/SWARM-A/GNSS/swarma-gps-all.xml
index 5473fa9..f3d1add 100644
--- a/NumericalData/AMDA/SWARM-A/GNSS/swarma-gps-all.xml
+++ b/NumericalData/AMDA/SWARM-A/GNSS/swarma-gps-all.xml
@@ -51,7 +51,7 @@ Note that AMDA keeps STEC / VTEC data for the highest elevation angle only.
         <Parameter>
             <Name>stec</Name>
             <ParameterKey>swa_stec</ParameterKey>
-            <Description>Absolute slant TEC</Description>
+            <Description>Absolute slant TEC from largest elevation GNSS satellite</Description>
             <Ucd/>
             <Units>TECU</Units>
             <UnitsConversion/>            
@@ -63,7 +63,7 @@ Note that AMDA keeps STEC / VTEC data for the highest elevation angle only.
         <Parameter>
             <Name>vtec</Name>
             <ParameterKey>swa_vtec</ParameterKey>
-            <Description>Absolute vertical TEC</Description>
+            <Description>Absolute vertical TEC from largest elevation GNSS satellite</Description>
             <Ucd/> 
             <Units>TECU</Units>
             <UnitsConversion/>            
diff --git a/NumericalData/AMDA/SWARM-B/GNSS/swarmb-gps-all.xml b/NumericalData/AMDA/SWARM-B/GNSS/swarmb-gps-all.xml
index 5ae8788..9213b69 100644
--- a/NumericalData/AMDA/SWARM-B/GNSS/swarmb-gps-all.xml
+++ b/NumericalData/AMDA/SWARM-B/GNSS/swarmb-gps-all.xml
@@ -51,7 +51,7 @@ Note that AMDA keeps STEC / VTEC data for the highest elevation angle only.
         <Parameter>
             <Name>stec</Name>
             <ParameterKey>swb_stec</ParameterKey>
-            <Description>Absolute slant TEC</Description>
+            <Description>Absolute slant TEC  from largest elevation GNSS satellite</Description>
             <Ucd/>
             <Units>TECU</Units>
             <UnitsConversion/>            
@@ -63,7 +63,7 @@ Note that AMDA keeps STEC / VTEC data for the highest elevation angle only.
         <Parameter>
             <Name>vtec</Name>
             <ParameterKey>swb_vtec</ParameterKey>
-            <Description>Absolute vertical TEC</Description>
+            <Description>Absolute vertical TEC  from largest elevation GNSS satellite</Description>
             <Ucd/> 
             <Units>TECU</Units>
             <UnitsConversion/>            
diff --git a/NumericalData/AMDA/SWARM-C/GNSS/swarmc-gps-all.xml b/NumericalData/AMDA/SWARM-C/GNSS/swarmc-gps-all.xml
index f67ecd8..1c3ad4c 100644
--- a/NumericalData/AMDA/SWARM-C/GNSS/swarmc-gps-all.xml
+++ b/NumericalData/AMDA/SWARM-C/GNSS/swarmc-gps-all.xml
@@ -51,7 +51,7 @@ Note that AMDA keeps STEC / VTEC data for the highest elevation angle only.
         <Parameter>
             <Name>stec</Name>
             <ParameterKey>swc_stec</ParameterKey>
-            <Description>Absolute slant TEC</Description>
+            <Description>Absolute slant TEC from largest elevation GNSS satellite</Description>
             <Ucd/>
             <Units>TECU</Units>
             <UnitsConversion/>            
@@ -63,7 +63,7 @@ Note that AMDA keeps STEC / VTEC data for the highest elevation angle only.
         <Parameter>
             <Name>vtec</Name>
             <ParameterKey>swc_vtec</ParameterKey>
-            <Description>Absolute vertical TEC</Description>
+            <Description>Absolute vertical TEC from largest elevation GNSS satellite</Description>
             <Ucd/> 
             <Units>TECU</Units>
             <UnitsConversion/>            
--
libgit2 0.21.2