Title :
Retrieval of CO columns from IMG/ADEOS spectra
Author :
Clerbaux, Cathy ; Hadji-Lazaro, Juliette ; Payan, Sébastien ; Camy-Peyret, Claude ; Mégie, Gérard
Author_Institution :
Paris VI Univ., France
fDate :
5/1/1999 12:00:00 AM
Abstract :
The high-resolution atmospheric spectra recorded by the Interferometric Monitor for Greenhouse gases instrument on the ADvanced Earth Observing System (IMG/ADEOS) in June, 1997, were analyzed by two different and complementary inversion algorithms to retrieve CO total columns. Spectral fits of high quality were obtained using a global fit algorithm on selected cloud-free measurements. Global distribution maps of CO obtained using a fast neural network retrieval algorithm are compared to the results provided by current chemistry-transport models. These studies highlight the need for complementary information (temperature, emissivity, instrumental function, and cloud content) to retrieve accurate CO vertical columns
Keywords :
atmospheric composition; atmospheric techniques; carbon compounds; geophysical signal processing; geophysics computing; neural nets; remote sensing; AD 1997 06; ADEOS; CO; IMG; IR spectra; Interferometric Monitor for Greenhouse gases; air pollution; atmosphere; chemical composition; fast neural network; global fit algorithm; infrared spectra; inversion algorithm; measurement technique; neural net; satellite remote sensing; total column; vertical profile; Algorithm design and analysis; Clouds; Content based retrieval; Earth Observing System; Global warming; Information retrieval; Instruments; Monitoring; Neural networks; Temperature;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
