Example of Variables and their Application Areas (for details see http://www.wmo-sat.info/oscar/variables)
Example of Requirements defined for Air pressure (at surface)

Variable name

Theme

Definition

Uncert. Units

Required for Applications

Layers

Air pressure (at surface)

Basic atmospheric

Pressure of the air column measured at 2 m above surface

hPa

Climate-AOPC
Global NWP
High Res NWP
Marine biology
Ocean Applications

Surface
Over land
Over sea
Over sea-coast

Air specific humidity (at surface)

Basic atmospheric

Air specific humidity measured at 2 m above surface. The specific humidity is the ratio between the mass of water vapour and the mass of moist air.

%

CLIC
Agricultural Meteorology
Climate-AOPC
Global NWP
High Res NWP
Ocean Applications

Surface

Air temperature (at surface)

Basic atmospheric

Air temperature measured at 2 m above surface

K

CLIC
Agricultural Meteorology
Climate-AOPC
Global NWP
High Res NWP
Nowcasting
Ocean Applications
Synoptic Meteorology

Surface
Over sea

Atmospheric temperature

Basic atmospheric

3D field of the atmospheric temperature

K

Aeronautical Meteorology
Agricultural Meteorology
Climate-AOPC
Global Modelling/WCRP
Global NWP
High Res NWP
Nowcasting
SPARC
Synoptic Meteorology

HS&M
LS
HT
LT

 

 

Note: In reading the values, goal is marked blue, breakthrough green and threshold orange(for details see http://www.wmo-sat.info/oscar/variables/view/10)

Id

Layer

Application Area

Uncertainty

Horizontal Resolution

Vertical Resolution

Observing Cycle

Availability

Conf Level

Val Date

Source

Comment

250

Over land

Global NWP

0.5 hPa
1 hPa
1 hPa

15 km
100 km
500 km

60 min
6 h
12 h

6 min
30 min
6 h

firm

2009-02-10

John Eyre

251

Over sea

Global NWP

0.5 hPa
1 hPa
1 hPa

15 km
100 km
500 km

60 min
6 h
12 h

6 min
30 min
6 h

firm

2009-02-10

John Eyre

Back To Top