Classification
GRAD - Earth atmosphere, weather
27
UMB - Atmospheric chemistry
15
UMC - Atmospheric physics
8
UMD - Atmospheric models
7
UMV - Climatic change
5
GRB - Climatology
4
GRBN - Climatological models
4
GAN - Geosciences - mathematical methods, computer applications
2
GRA - Meteorology
2
GRAH - Cloud physics
2
GRAK - Atmospheric precipitations
2
GKA - Geophysics - general
1
GMA - Geochemistry - general
1
GRAN - Wind
1
GRBK - Climatological data
1
GXAA - Polar research - arctic region
1
PLA - Astrosciences - general
1
UCS - Environmental chemistry
1
UMA - Atmospheric sciences
1
UMNC - Air pollution control by chemical analytical methods
1