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Ozone Total Column

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6.3.2.1 Ozone Total Column


Retrieval settings summary:

L0-1c settings
Calibration All calibrations applied
SMR D0
DOAS settings
Fitting Interval 325 - 335 nm
Wavelength Shift Wavelength calibration of sun reference optimised
over fitting interval by NLLS adjustment on pre-convolved
NEWKPNO atlas
Polynomial Degree 3rd order
Absorption Cross Sections / Fitted Curves
NO2 Bogumil et al, Temperature = 243 K
O3 Bogumil et al. 243 K, shifted + 0.02 nm, scaled by 1.03
O3 Difference spectrum T = 223 K, Differenceequation, shifted + 0.02, scaled by 1.03
Ring Spectrum Calculated by convolution of the Chance and Spurr (1997)
solar atlas with RRS cross-sections of molecular N2 and O2
Total Column Calculation: Profiles / AMF
AMF ref. wavelength 325.5 nm
O3 Profile TOMS V.8 Climatology using iterative method with profiles
parametrised by total column
Radiative Transfer Model LIDORT
CTH, COT, CTA SACURA
Cloud Fractions OCRA

 


6.3.2.2 NO2 Total Column

 

Retrieval settings summary:
L0-1c settings
Calibration All calibrations applied except applied radiometric calibration and m-factors
SMR A0
DOAS settings
Fitting Interval 426.5 - 451.5 nm
Wavelength Shift Wavelength calibration of sun reference optimised
over fitting interval by NLLS adjustment on pre-convolved
NEWKPNO atlas
Polynomial Degree 2nd order
Absorption Cross Sections / Fitted Curves
NO2 Bogumil et al, Temperature = 243 K
O3 Bogumil et al. 243 K, shifted + 0.025 nm
O3 Difference spectrum T = 223 K, Differenceequation, shifted + 0.025 nm
O2 - O2 Greenblatt et al. (1990); Wavelength axis corrected by Burkholder
H2O Generated from HITRAN database
Ring Spectrum Calculated by convolution of the Chance and Spurr (1997)
solar atlas with RRS cross-sections of molecular N2 and O2
Offset and slope correction Inverse Earthshine
Total Column Calculation: Profiles / AMF
AMF ref. wavelength 439.0 nm
O3 Profile HALOE (Lambert et al, 2000)
Radiative Transfer Model LIDORT
CTH, COT, CTA SACURA
Cloud Fractions OCRA

 

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