diff --git a/definitions/grib2/name.def b/definitions/grib2/name.def
index b18d6180d..a6a10ba2e 100644
--- a/definitions/grib2/name.def
+++ b/definitions/grib2/name.def
@@ -19233,14 +19233,12 @@
 	 discipline = 0 ;
 	 parameterCategory = 20 ;
 	 parameterNumber = 107 ;
-	 typeOfFirstFixedSurface = 8 ;
 	}
 #Aerosol backscatter from ground
 'Aerosol backscatter from ground' = {
 	 discipline = 0 ;
 	 parameterCategory = 20 ;
 	 parameterNumber = 108 ;
-	 typeOfFirstFixedSurface = 1 ;
 	}
 #Aerosol extinction coefficient
 'Aerosol extinction coefficient' = {
@@ -19248,6 +19246,28 @@
 	 parameterCategory = 20 ;
 	 parameterNumber = 105 ;
 	}
+#Mass mixing ratio difference
+'Mass mixing ratio difference' = {
+	 discipline = 0 ;
+	 parameterCategory = 20 ;
+	 parameterNumber = 2 ;
+	 typeOfGeneratingProcess = 20 ;
+	}
+#Mass mixing ratio from volcanoes difference
+'Mass mixing ratio from volcanoes difference' = {
+	 discipline = 0 ;
+	 parameterCategory = 20 ;
+	 parameterNumber = 2 ;
+	 typeOfGeneratingProcess = 20 ;
+	 sourceSinkChemicalPhysicalProcess = 7 ;
+	}
+#Emission mass flux from wild fires
+'Emission mass flux from wild fires' = {
+	 discipline = 0 ;
+	 parameterCategory = 20 ;
+	 parameterNumber = 77 ;
+	 sourceSinkChemicalPhysicalProcess = 5 ;
+	}
 #Pressure tendency
 'Pressure tendency' = {
 	 discipline = 0 ;
diff --git a/definitions/grib2/paramId.def b/definitions/grib2/paramId.def
index b3c5e5cdb..a7f431556 100644
--- a/definitions/grib2/paramId.def
+++ b/definitions/grib2/paramId.def
@@ -19233,14 +19233,12 @@
 	 discipline = 0 ;
 	 parameterCategory = 20 ;
 	 parameterNumber = 107 ;
-	 typeOfFirstFixedSurface = 8 ;
 	}
 #Aerosol backscatter from ground
 '461000' = {
 	 discipline = 0 ;
 	 parameterCategory = 20 ;
 	 parameterNumber = 108 ;
-	 typeOfFirstFixedSurface = 1 ;
 	}
 #Aerosol extinction coefficient
 '462000' = {
@@ -19248,6 +19246,28 @@
 	 parameterCategory = 20 ;
 	 parameterNumber = 105 ;
 	}
+#Mass mixing ratio difference
+'467000' = {
+	 discipline = 0 ;
+	 parameterCategory = 20 ;
+	 parameterNumber = 2 ;
+	 typeOfGeneratingProcess = 20 ;
+	}
+#Mass mixing ratio from volcanoes difference
+'468000' = {
+	 discipline = 0 ;
+	 parameterCategory = 20 ;
+	 parameterNumber = 2 ;
+	 typeOfGeneratingProcess = 20 ;
+	 sourceSinkChemicalPhysicalProcess = 7 ;
+	}
+#Emission mass flux from wild fires
+'469000' = {
+	 discipline = 0 ;
+	 parameterCategory = 20 ;
+	 parameterNumber = 77 ;
+	 sourceSinkChemicalPhysicalProcess = 5 ;
+	}
 #Pressure tendency
 '3003' = {
 	 discipline = 0 ;
diff --git a/definitions/grib2/shortName.def b/definitions/grib2/shortName.def
index 133cd5b96..cb4f45f2a 100644
--- a/definitions/grib2/shortName.def
+++ b/definitions/grib2/shortName.def
@@ -19233,14 +19233,12 @@
 	 discipline = 0 ;
 	 parameterCategory = 20 ;
 	 parameterNumber = 107 ;
-	 typeOfFirstFixedSurface = 8 ;
 	}
 #Aerosol backscatter from ground
 'aerbscatgnd' = {
 	 discipline = 0 ;
 	 parameterCategory = 20 ;
 	 parameterNumber = 108 ;
-	 typeOfFirstFixedSurface = 1 ;
 	}
 #Aerosol extinction coefficient
 'aerext' = {
@@ -19248,6 +19246,28 @@
 	 parameterCategory = 20 ;
 	 parameterNumber = 105 ;
 	}
+#Mass mixing ratio difference
+'mass_mixrat_diff' = {
+	 discipline = 0 ;
+	 parameterCategory = 20 ;
+	 parameterNumber = 2 ;
+	 typeOfGeneratingProcess = 20 ;
+	}
+#Mass mixing ratio from volcanoes difference
+'mass_mixrat_vol_diff' = {
+	 discipline = 0 ;
+	 parameterCategory = 20 ;
+	 parameterNumber = 2 ;
+	 typeOfGeneratingProcess = 20 ;
+	 sourceSinkChemicalPhysicalProcess = 7 ;
+	}
+#Emission mass flux from wild fires
+'emi_mflx_wfire' = {
+	 discipline = 0 ;
+	 parameterCategory = 20 ;
+	 parameterNumber = 77 ;
+	 sourceSinkChemicalPhysicalProcess = 5 ;
+	}
 #Pressure tendency
 'ptend' = {
 	 discipline = 0 ;
diff --git a/definitions/grib2/units.def b/definitions/grib2/units.def
index e06de658e..b0d164f1d 100644
--- a/definitions/grib2/units.def
+++ b/definitions/grib2/units.def
@@ -19233,14 +19233,12 @@
 	 discipline = 0 ;
 	 parameterCategory = 20 ;
 	 parameterNumber = 107 ;
-	 typeOfFirstFixedSurface = 8 ;
 	}
 #Aerosol backscatter from ground
 'm**-1 sr**-1' = {
 	 discipline = 0 ;
 	 parameterCategory = 20 ;
 	 parameterNumber = 108 ;
-	 typeOfFirstFixedSurface = 1 ;
 	}
 #Aerosol extinction coefficient
 'm**-1' = {
@@ -19248,6 +19246,28 @@
 	 parameterCategory = 20 ;
 	 parameterNumber = 105 ;
 	}
+#Mass mixing ratio difference
+'kg kg**-1' = {
+	 discipline = 0 ;
+	 parameterCategory = 20 ;
+	 parameterNumber = 2 ;
+	 typeOfGeneratingProcess = 20 ;
+	}
+#Mass mixing ratio from volcanoes difference
+'kg kg**-1' = {
+	 discipline = 0 ;
+	 parameterCategory = 20 ;
+	 parameterNumber = 2 ;
+	 typeOfGeneratingProcess = 20 ;
+	 sourceSinkChemicalPhysicalProcess = 7 ;
+	}
+#Emission mass flux from wild fires
+'kg m**-2 s**-1' = {
+	 discipline = 0 ;
+	 parameterCategory = 20 ;
+	 parameterNumber = 77 ;
+	 sourceSinkChemicalPhysicalProcess = 5 ;
+	}
 #Pressure tendency
 'Pa s**-1' = {
 	 discipline = 0 ;