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Requirement details

Name Air specific humidity (at surface)
Note 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. Requirements copied from OSCAR (#252 Global NWP).
Dissemination NRT Service
Quality Control Procedure Automatic
Group Meteorology
Status -
Uncertainty
10 %
5 %
2 %
Update Frequency
12 h
3 h
60 min
Timeliness
6 h
30 min
6 min
Scale
Horizontal resolution
250 km
50 km
15 km
Vertical resolution
Essential variables
State Draft
Created on March 12, 2018, 4:52 p.m.
Last updated on Dec. 20, 2021, 12:32 p.m.

Products

Product Level of definition Relevant for Criticality Barriers Note Created on Last updated on
Global Climate Reanalysis Firm Product generation Essential Availability, Coverage, Data policy March 12, 2018, 5:37 p.m. Dec. 20, 2021, 12:32 p.m.
Hydrological Climate Variables - Relative Humidity of Surface Air Firm Product generation Essential Availability, Coverage, Data policy March 12, 2018, 4:53 p.m. Dec. 20, 2021, 12:32 p.m.
Hydrological Climate Variables - Volumetric Moisture Content Firm Product generation Essential Availability, Coverage, Data policy March 12, 2018, 5:14 p.m. Dec. 20, 2021, 12:32 p.m.
Regional Reanalysis for Europe Firm Product generation Essential Availability, Coverage, Data policy Dec. 20, 2018, 4:48 p.m. Dec. 20, 2021, 12:32 p.m.
Arctic Regional Reanalysis Firm Product generation Essential Availability, Coverage, Data policy Dec. 20, 2018, 4:50 p.m. Dec. 20, 2021, 12:32 p.m.
Monthly climate bulletin Firm Product generation Essential Availability, Coverage, Data policy Oct. 30, 2019, 5:31 p.m. Dec. 20, 2021, 12:32 p.m.

Data

Data Level of compliance Note Information costs Handling costs Created on Last updated on
ERA5 Fully March 12, 2018, 5:37 p.m. Dec. 20, 2021, 12:32 p.m.
WMO WWW Fully April 11, 2019, 4:57 p.m. Dec. 20, 2021, 12:32 p.m.