BackForward Variable: Solar Ca II-K image

Definition
Full name Solar Ca II-K image
Definition Image of the Sun in the K-line of Ca-II  (393.4 nm)
Measuring Units erg·(cm2 arcsec s)-1 Uncertainty Units %
Horizontal Res Units arcsec Vertical Res Units
Stability Units % (Stability /decade)

 

Comment: Primary proxy for UV irradiance
Last modified: 2011-06-08
Applied in OSCAR/Space Gap Analysis: Yes
Classification
  • Domain: Outer Space
    • Sub-domain: Solar monitoring
      • Variable: Solar Ca II-K image
        • Measured in Layers:
          • Sun
  • Cross-cutting themes:

Requirements defined for Solar Ca II-K image  (1)

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
599 Solar Ca II-K image Sun Space Weather 1 %
1 %
10 %
1 arcsec
1 arcsec
5 arcsec
60 sec
60 sec
10 min
60 sec
5 min
15 min
Global tentative 2011-05-01 ICTSW-1