diff --git a/data/tigge_pf_ecmwf.grib2.ref b/data/tigge_pf_ecmwf.grib2.ref
index 238323dc0..838b9b75a 100644
--- a/data/tigge_pf_ecmwf.grib2.ref
+++ b/data/tigge_pf_ecmwf.grib2.ref
@@ -3,7 +3,7 @@ ecmf 166 10v m s**-1 10 metre V wind component
 ecmf 59 cape J kg**-1 Convective available potential energy
 ecmf 156 gh gpm Geopotential height
 ecmf 151 msl Pa Mean sea level pressure
-ecmf 179 ttr J m**-2 Top net long-wave radiation
+ecmf 179 ttr J m**-2 Top net long-wave (thermal) radiation
 ecmf 3 pt K Potential temperature
 ecmf 60 pv K m**2 kg**-1 s**-1 Potential vorticity
 ecmf 235 skt K Skin temperature
@@ -18,15 +18,15 @@ ecmf 121 mx2t6 K Maximum temperature at 2 metres in the last 6 hours
 ecmf 122 mn2t6 K Minimum temperature at 2 metres in the last 6 hours
 ecmf 167 2t K 2 metre temperature
 ecmf 147 slhf J m**-2 Surface latent heat flux
-ecmf 176 ssr J m**-2 Surface net short-wave radiation
-ecmf 177 str J m**-2 Surface net long-wave radiation
+ecmf 176 ssr J m**-2 Surface net short-wave (solar) radiation
+ecmf 177 str J m**-2 Surface net long-wave (thermal) radiation
 ecmf 134 sp Pa Surface pressure
 ecmf 146 sshf J m**-2 Surface sensible heat flux
 ecmf 130 t K Temperature
-ecmf 179 ttr J m**-2 Top net long-wave radiation
+ecmf 179 ttr J m**-2 Top net long-wave (thermal) radiation
 ecmf 147 slhf J m**-2 Surface latent heat flux
-ecmf 176 ssr J m**-2 Surface net short-wave radiation
-ecmf 177 str J m**-2 Surface net long-wave radiation
+ecmf 176 ssr J m**-2 Surface net short-wave (solar) radiation
+ecmf 177 str J m**-2 Surface net long-wave (thermal) radiation
 ecmf 146 sshf J m**-2 Surface sensible heat flux
 ecmf 228164 tcc % Total Cloud Cover
 ecmf 136 tcw kg m**-2 Total column water