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Precipitable water column retrieval from GOME data
Author(s) -
Maurellis Ahilleas N.,
Lang Rüdiger,
van der Zande Wim J.,
Aben Ilse,
Ubachs Wim
Publication year - 2000
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 - 10.1029/1999gl010897
Subject(s) - precipitable water , opacity , trace gas , water vapor , absorption (acoustics) , environmental science , differential optical absorption spectroscopy , spectral line , absorption spectroscopy , remote sensing , spectroscopy , ozone , column (typography) , meteorology , physics , optics , geology , computer science , astronomy , telecommunications , frame (networking)
We investigate the retrieval of terrestrial precipitable water columns using a new spectral fitting method applied to Global Ozone Monitoring Experiment (GOME) data. The method is an optical absorption spectroscopy technique and employs a new approach to the opacity sampling of absorption line spectra which we apply to a little‐studied visible band between 585 and 600 nm. The GOME‐retrieved columns are compared with data from the European Center for Medium‐Range Weather Forecasts for different orbits and show good agreement. The new retrieval algorithm is sensitive to the temperature and pressure dependence of absorption lines in general and may be easily applied to spectra of trace gases other than water vapor.