Level 2 Products  SCIAMACHY and ENVISAT-1  SCIAMACHY Main Page

Altitude Coverage and Precision Estimates of SCIAMACHY Trace Gas Measurements

	NadirColumn	Vertical Profile			Nadir - Limb
		Occultation		Limb	Tropospheric
Molecule		Solar	Lunar		Column
O3	1 %	1 %	2 %	10 %	10 %
NO2	2 % ##	1 %	5 %	10 %	10 %
NO3	5 %	50 % (day)	10 % (twilight)	?
BrO	5 % ##	5 %	?	50 %	?
OClO&	5 % ##	2 %	5 %	?	?
ClO&	20 %	50 %	?	50 %
HCHO!#	20 % ##	?		?	25 %
SO2 !	10 % ##			?	10 %
H2O	1 %	1 %	?	10 %	5 %
N2O	5 %	1 %	5 %	10 %	10 %
CO	5 %	1.5 %	?	10 %	10 %
CO2	1 %	1 %	?	10 %	5 %
CH4	1 %	1 %	?	10 %	5 %
NO§	20 %	1 %		10 %
O4	5 %	10 %		20 %	10 %
O2	1 %	1 %		10 %	10 %
O2 (1Dg)	1 %	1 %		10 %

These are precisions for recovering stratospheric concentration profiles, including all effects due to spacecraft pointing and jitter, weighting functions for absorption and, for limb scattering geometry, weighting functions for the scattering source.

Red: Operational Products (NRT and OL)

Green: Scientific Products (feasible, but no operational retrieval)

Blue: Experimental Products (currently no sensitivity studies available)

^! Polluted tropospheric conditions.

^# Biogenic emissions and biomass burning.

^§ Estimated knowledge of column above 40 km.

^& Ozone hole conditions.

^## the feasibility of the retrieval of SO₂, BrO, OClO, HCHO and NO₂ total column amount already shown by GOME

 Level 2 Products

 SCIAMACHY and ENVISAT-1

 SCIAMACHY Main Page