Domains and Layers

This table lists all layers sorted by domain. A layer refers to the spatial domain where a physical variable is measured. This concept is used to define where a specific requirement is needed

Domain Acronym Full name Dimension
Atmosphere TC
TrC
HS&M
LS
HT
LT
Surface
Over land
Over sea
Cloud-top
TOA
2D
Total column
Troposphere column
High stratosphere and mesosphere
Low stratosphere
High troposphere
Low troposphere
At the surface (in the air)
Over land surface (two-dimensional field)
Over sea surface (two-dimensional field)
At the cloud top surface
Top of the atmosphere
Two-dimensional field
2D
2D
3D
3D
3D
3D
2D
2D
2D
2D
2D
2D
Ocean Surf-sea
Bulk
Coast
Open oc
Upper oc
Deep oc
Over sea-coast
Surface of the ocean
Bulk layer (ocean sub-surface)
Coastal zone
Open ocean
Upper ocean
Deep ocean
Over sea in coastal zones
2D
2D
3D
3D
3D
3D
3D
Terrestrial Surf-land
Root
Deep soil
Interior
Land surface
Root region of the soil
Deep soil layer
Interior earth
3D
3D
3D
3D
Space Ionos
L1
L4-L5
Geo
Leo
Meo
Helio
Sun
Earth surface
Magnet
1D
Thermo
The whole ionosphere
Solar wind at Lagrange point L1
Solar wind at Lagrange points L4, L5
(In situ) at geostationary orbit
(In situ) at Low Earth Orbit
Intermediate orbit between LEO and GEO
In the heliosphere
At the sun surface
At Earth's surface
Magnetosphere
One-dimensional variable
Thermosphere (From about 90 km to about 600 km altitude)
3D
1D
1D
1D
2D
2D
3D
2D
2D
3D
1D
3D