BackForward Variable: Downward short-wave irradiance at Earth surface

Definition
Full name Downward short-wave irradiance at Earth surface
Definition Flux density of the solar radiation at the Earth surface
Measuring Units W.m-2 Uncertainty Units W.m-2
Horizontal Res Units km Vertical Res Units
Stability Units W.m-2 (Stability /decade)

 

Comment: This variable may be specified for both all-sky and clear-sky (cloud-free) conditions.
Last modified: 2011-06-23
Applied in OSCAR/Space Gap Analysis: Yes
Classification
  • Domain: Atmosphere
    • Sub-domain: Aerosols and radiation
      • Variable: Downward short-wave irradiance at Earth surface
        • Measured in Layers:
          • Near Surface
  • Cross-cutting themes:

Requirements defined for Downward short-wave irradiance at Earth surface  (5)

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 and threshold orange

Id Variable Layer App Area Uncertainty Stability / decade Hor Res Ver Res Obs Cyc Timeliness Coverage Conf Level Val Date Source
93 Downward short-wave irradiance at Earth surface Near Surface Climate-AOPC (deprecated) 5 W.m-2
6.5 W.m-2
10 W.m-2 		25 km
50 km
100 km 		24 h
2 d
5 d 		24 h
3 d
30 d 		Global firm 2007-07-19 AOPC
274 Downward short-wave irradiance at Earth surface Near Surface Global NWP 1 W.m-2
10 W.m-2
20 W.m-2 		10 km
30 km
100 km 		60 min
3 h
12 h 		24 h
5 d
30 d 		Global reasonable 2009-02-10 John Eyre
701 Downward short-wave irradiance at Earth surface Near Surface Nowcasting / VSRF 1 W.m-2
10 W.m-2
20 W.m-2 		5 km
15 km
50 km 		60 sec
10 min
60 min 		60 sec
10 min
60 min 		Global reasonable 2013-04-15 P. Ambrosetti
788 Downward short-wave irradiance at Earth surface Near Surface Climate Monitoring (GCOS) 1 W.m-2 0.2 W.m-2 100 km 30 d Global reasonable 2019-09-25 GCOS-200: The Global Observing System for Climate: Implementation Needs (Published 2016)