HR: 1330h
AN: A42C-0775    [PDF]
TI: ILAS-II measurements of O$_3$: comparison with ozonesondes
AU: * Sugita, T
EM: tsugita@nies.go.jp
AF: National Institute for Environmental Studies, Onogawa 16-2, Tsukuba, 3058506 Japan
AU: Kanzawa, H
EM: kanzawa@ihas.nagoya-u.ac.jp
AF: Nagoya University, Graduate School of Environmental Studies, Furo-cho, Chikusa-ku, Nagoya, 4648601 Japan
AU: Nakajima, H
EM: hide@nies.go.jp
AF: National Institute for Environmental Studies, Onogawa 16-2, Tsukuba, 3058506 Japan
AU: Yokota, T
EM: yoko@nies.go.jp
AF: National Institute for Environmental Studies, Onogawa 16-2, Tsukuba, 3058506 Japan
AU: Kobayashi, H
EM: satmng@nies.go.jp
AF: National Institute for Environmental Studies, Onogawa 16-2, Tsukuba, 3058506 Japan
AU: Sasano, Y
EM: sasano@nies.go.jp
AF: National Institute for Environmental Studies, Onogawa 16-2, Tsukuba, 3058506 Japan
AB: A solar occultation sensor, the Improved Limb Atmospheric Spectrometer (ILAS)-II, started to measure vertical profiles of several gas concentrations and aerosol extinction coefficients in the stratosphere from January 2003 (the operation phase from April 2003). The latitude coverage is similar to POAM II (October 1993 to November 1996), ILAS (November 1996 to June 1997) and POAM III (April 1998 to present) measurements, namely, in the high-latitude in the both hemispheres. One of the purposes of the ILAS-II measurement is to continue such high-latitude measurements of ozone and its related species in order to contribute to the derivation of their trends accurately. An early validation status of the ozone data through comparison with ozonesonde measurements will be presented. The ozonesonde data were obtained from the ILAS-II core validation measurements in Kiruna, Sweden in February and March, and in Syowa station, Antarctica in February, May, July, and August. Along with these data, data from the QUOBI campaign were used under the VINTERSOL data protocol and provided through a database of NILU. Initial results from these comparisons suggest that the ILAS-II ozone data in the lower stratosphere have a good quality and are suitable for scientific studies.
UR: http://www-ilas2.nies.go.jp
DE: 0340 Middle atmosphere--composition and chemistry
DE: 0341 Middle atmosphere--constituent transport and chemistry (3334)
DE: 3360 Remote sensing
SC: Atmospheric Sciences [A]
MN: 2003 Fall Meeting