BackForward Variable: Fraction of Absorbed PAR (FAPAR)

Definition
Full name Fraction of Absorbed PAR (FAPAR)
Definition Fraction of PAR absorbed by vegetation (land or marine) for photosynthesis processes (generally around the 'red' )
Measuring Units % Uncertainty Units %
Horizontal Res Units km Vertical Res Units
Stability Units % (Stability /decade)

 

Comment:
Last modified: 2011-10-10
Applied in OSCAR/Space Gap Analysis: Yes
Classification
  • Domain: Atmosphere
    • Sub-domain: Aerosols and radiation
      • Variable: Fraction of Absorbed PAR (FAPAR)
        • Measured in Layers:
          • Sea surface
          • Bulk
          • Land surface
  • Cross-cutting themes:

Requirements defined for Fraction of Absorbed PAR (FAPAR)  (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 and threshold orange

Id Variable Layer App Area Uncertainty Stability / decade Hor Res Ver Res Obs Cyc Timeliness Coverage Conf Level Val Date Source
566 Fraction of Absorbed PAR (FAPAR) Land surface SIAF (deprecated) 5 %
7 %
10 % 		50 km
100 km
500 km 		7 d
12 d
30 d 		24 h
3 d
30 d 		Global land firm 2009-01-19 Laura Ferranti
664 Fraction of Absorbed PAR (FAPAR) Land surface Climate-TOPC (deprecated) 5 %
7 %
10 % 		0.25 km
0.5 km
2 km 		24 h
3 d
30 d 		10 d
15 d
30 d 		Global land firm 2007-07-19 TOPC
751 Fraction of Absorbed PAR (FAPAR) SSLP 5 %
7 %
10 % 		50 km
100 km
500 km 		7 d
12 d
30 d 		24 h
3 d
30 d 		Global land firm 2009-01-19 Laura Ferranti
38 Fraction of Absorbed PAR (FAPAR) Land surface Agricultural Meteorology 5 %
8 %
20 % 		5 km
13.6 km
100 km 		60 min
6 h
7 d 		24 h
2 d
5 d 		Global land reasonable 2003-10-20 ET ODRRGOS
277 Fraction of Absorbed PAR (FAPAR) Land surface Global NWP 5 %
10 %
20 % 		2 km
10 km
50 km 		24 h
5 d
10 d 		3 h
24 h
10 d 		Global land reasonable 2009-02-10 John Eyre
359 Fraction of Absorbed PAR (FAPAR) Land surface High Res NWP 5 %
10 %
20 % 		1 km
5 km
20 km 		12 h
24 h
2 d 		24 h
3 d
7 d 		Global land reasonable 2011-07-29 JF Mahfouf
827 Fraction of Absorbed PAR (FAPAR) Land surface Climate Monitoring (GCOS) 10 % 3 % 0.05 km
0.2 km
0.5 km 		24 h Global reasonable 2019-09-30 GCOS-200: The Global Observing System for Climate: Implementation Needs (Published 2016)