WMO OSCAR | Details for Variable: Air pressure (near surface)

Variable: Air pressure (near surface)

Definition

Full name	Air pressure (near surface)
Definition	Air pressure at a known height above the surface with the height specified in the metadata
Measuring Units	hPa	Uncertainty Units	hPa
Horizontal Res Units	km	Vertical Res Units
Stability Units	hPa (Stability /decade)

Comment:
Last modified:	2019-10-15
Applied in OSCAR/Space Gap Analysis:	No

Classification

Domain: Atmosphere
- Sub-domain: Basic atmospheric
  - Variable: Air pressure (near surface)
    - Measured in Layers:
      - Near Surface

Cross-cutting themes:

Earth System Application Categories and its related Application Areas:
- 2. Atmospheric Applications
- 2. Atmospheric Applications
- 2. Atmospheric Applications
- 2. Atmospheric Applications
- 6. Integrated Earth System Applications
- 1. Space Weather Applications
Unknown:
- Climate-AOPC (deprecated)

Requirements defined for Air pressure (near surface) (7)

This tables shows all related requirements. For more operations/filtering, please consult the full list of Requirements
Note: In reading the values, goal is marked blue, breakthrough green, threshold orange
Application-dependent Technical Priority (ATP) Magenta and Relative priority of the attributes Red

Id	Variable	Layer	App Area	ATP	Uncertainty	Stability / decade	Hor Res	Obs Cyc	Timeliness	Coverage	Conf Level	Val Date	Source	General Comment
67	Air pressure (near surface)	Near Surface	Climate-AOPC (deprecated)		0.5 hPa 0.65 hPa 1 hPa		200 km 300 km 500 km	3 h 6 h 24 h	3 h 6 h 12 h	Global land	reasonable	2007-07-19	AOPC
68	Air pressure (near surface)	Near Surface	Climate-AOPC (deprecated)		0.5 hPa 0.65 hPa 1 hPa		200 km 300 km 500 km	3 h 6 h 24 h	3 h 6 h 12 h	Global ocean	reasonable	2007-07-19	AOPC
250	Air pressure (near surface)	Near Surface	2.1 Global Numerical Weather Prediction and Real-time Monitoring		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	Global land	firm	2009-02-10	John Eyre
251	Air pressure (near surface)	Near Surface	2.1 Global Numerical Weather Prediction and Real-time Monitoring		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	Global ocean	firm	2009-02-10	John Eyre
335	Air pressure (near surface)	Near Surface	2.2 High-Resolution Numerical Weather Prediction		0.5 hPa 0.6 hPa 1 hPa		2 km 10 km 40 km	30 min 60 min 3 h	15 min 30 min 2 h	Global	firm	2010-02-01	T Montmerle	The increase of horizontal resolutions is justified by the fact that forecast errors of surface pressure in HR NWP models have larger horizontal correlations than the other classical variables.
721	Air pressure (near surface)	Near Surface	2.8 Aeronautical Meteorology		0.25 hPa 0.5 hPa 2 hPa			30 min 60 min 2 h	5 min 10 min 30 min	Point	firm	2018-01-22	J van der Meulen	At the aerodrome; to derive QNH [and QFE]; not typically measured at 2 m height. source: ICAO Annex 3 (requirements)
775	Air pressure (near surface)	Near Surface	2.5 Atmospheric Climate Monitoring	0.5	0.5 hPa 1 hPa 1 hPa 0.5	0.02 hPa 0.1 hPa 0.2 hPa 0.5	10 km 100 km 500 km 0.5	60 min 6 h 12 h 0.5	6 h 24 h 30 d 0.5	Global	firm	2023-04-27	GCOS-245: The 2022 ECVs Requirements (GCOS-245)	Requirements for uncertainty are specified at 2-sigma.