Umkehr ozone profiles from Dobson measurements
For Brewer Umkehr measurements please see the NEUBrew web page
01/01/2014/NEUBrew Brewer Umkehr data - find interactive display for Daily Ozone Vertical Profiles and Umkehr N-Values
Information about updated Umkehr ozone profile retrieval algorithm UMK04
Download algorithm paper in PDF format. What is new:-
New a priori ozone information:
Readme file Data - based on updated ozone climatology by NASA/Goddard (private communication with G. Labow )
- higher spatial resolution (10-degree latitude bins, 14 bins from 70 S to 70 N)
- only seasonal cycle, does not depend on total ozone
-
Updated forward model (readme file)
- new standard ozone profiles, representative of typical ozone distribution at low, middle, and high latitudes (the same as in SBUV V8 algorithm)
- tabulated multiple-scattering correction for N-values
- tabulated refraction correction for N-values
- tabulated multiple-scattering correction for Jacobian
- tabulated data of spectrally resolved extra-terrestrial solar flux (SUSIM satellite data), C-pair Dobson slit functions, ozone absorption (Bass-Paur temperature dependent fit), and Rayleigh scattering coefficients
coef_dobacdl.txt coef_dobacdh.txt -
Updated inverse model
- ozone profile retrieval in 61-layers (vertical layer resolution is a quarter of the standard Umkehr layer)
- Rodgers a priori covariance matrix
- Solar Zenith Angle dependent error covariance matrix
- linear in ozone retrieval
-
UMK04 retrieved ozone profile time series
readme file Data: Haute Provence Boulder Lauder
Reference for 1992 Umkehr retrieval
-
UMK92 (ca. 1992) retrieved ozone profile time series
readme file Data: Arosa Boulder Tateno -
A priori data for UMK92 (ca. 1992) retrievals
readme file Data: Arosa Boulder Tateno
irina.petro@noaa.gov |