HR: 1330h
AN: A22B-1064    [PDF]
TI: Seasonal Variations of Carbon Monoxide over Poker Flat observed by the ground based infrared spectroscopy from 2000 to 2002
AU: * Kasai, Y J
EM: ykasai@crl.go.jp
AF: SMILES Group, Communications Research Laboratory, 4-2-1, Nukui-Kitamachi, Koganei, Tokyo, 184-8795 Japan
AU: Endo, M
AF: SMILES Group, Communications Research Laboratory, 4-2-1, Nukui-Kitamachi, Koganei, Tokyo, 184-8795 Japan
AU: Seki, K
AF: SMILES Group, Communications Research Laboratory, 4-2-1, Nukui-Kitamachi, Koganei, Tokyo, 184-8795 Japan
AU: Kagawa, A
AF: SMILES Group, Communications Research Laboratory, 4-2-1, Nukui-Kitamachi, Koganei, Tokyo, 184-8795 Japan
AU: Kagawa, A
AF: FUJITSU FIP CORPORATION, Time 24 Building, 2-45 Aomi, Koto-ku, Tokyo, 135-8686 Japan
AU: Murayama, Y
AF: SMILES Group, Communications Research Laboratory, 4-2-1, Nukui-Kitamachi, Koganei, Tokyo, 184-8795 Japan
AU: Jones, N
AF: University of Wollongong, Northfields Ave., Wollongong, NSW 2522 Australia
AU: Murcray, F
AF: University of Denver, 2199 South University Blvd., Denver, CO 80208 United States
AB: Altitude profiles and tropospheric partial column abundances of CO during three years were retrieved from ground-based infrared solar spectra observed over Poker Flat, Alaska (65N, 147W). The spectra have been recorded with a high spectral resolution Fourier Transform Infrared (FTIR) spectrometer. The retrieval results indicate seasonal variation in the tropospheric column of the CO profile over Poker Flat with a maximum in March-April and minimum in July. These persistent seasonal variations and long term trend were detected for the first time over Poker Flats. Abnormally enhanced CO profiles appear in summer. Good correlations between CO and HCN indicate seasonal dependence. The enhanced CO and HCN tropospheric column amounts had similar sources and underwent similar dilution processes.
DE: 0317 Chemical kinetic and photochemical properties
DE: 0365 Troposphere--composition and chemistry
DE: 0368 Troposphere--constituent transport and chemistry
SC: Atmospheric Sciences [A]
MN: 2003 Fall Meeting