Premium
Validation of ozone profile retrievals from infrared ground‐based solar spectra
Author(s) -
Pougatchev N. S.,
Connor B. J.,
Jones N. B.,
Rinsland C. P.
Publication year - 1996
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/96gl01501
Subject(s) - hitran , environmental science , stratosphere , spectral line , ozone , remote sensing , infrared , atmospheric infrared sounder , microwave limb sounder , atmospheric sounding , atmospheric sciences , spectrometer , microwave , meteorology , physics , geology , troposphere , optics , astronomy , quantum mechanics
A direct validation of ozone profile retrievals from IR ground‐based high resolution solar spectra has been performed. The spectra were recorded at 0.0035 to 0.01 cm −1 resolution on 11 days between February and October 1994 at the Network for the Detection of Stratospheric Change station in Lauder, New Zealand (45.04°S, 169.68°E, 0.37 km altitude) and analyzed for the O 3 profile with a line‐by‐line forward model and semiempirical application of the optimal estimation inversion technique of Rodgers. The line parameters on the 1992 HITRAN compilation were assumed in the analysis. Retrieved ozone columns in three atmospheric layers (0.37–12 km, 12–20 km, and 20–100 km) have been compared with correlative ozonesondes, microwave and Dobson spectrometer data from the same site. IR total and O 3 columns above 20 km agree with Dobson and microwave measurements to better than 2%. For the layers 0.37–12 km and 12–20 km the differences between IR and integrated ozonesondes are −7±5% and 2±4%, respectively. Special exercises have been performed to show the applicability of the retrieval method to spectra with a resolution ∼0.02 cm −1 and better.