Share Email Print
cover

Proceedings Paper

A comparative study of stratospheric temperatures between ILAS-II and other data
Author(s): Takafumi Sugita; Tatsuya Yokota; Hideaki Nakajima; Hirokazu Kobayashi; Naoko Saitoh; Hiroyuki Kawasaki; Masatoshi Usami; Hisaya Saeki; Mariko Horikawa; Yasuhiro Sasano
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

The successor of the Improved Limb Atmospheric Spectrometer (ILAS), ILAS-II, aboard the Advanced Earth Observing Satellite-II (ADEOS-II) measured atmospheric absorption spectra at a wavelength region from 753 nm to 784 nm, including the molecular oxygen (O2) A-band centered at 762 nm, with a FWHM spectral resolution of 0.06 nm. Temperature and pressure profiles between ~10 km and 80 km were retrieved from the solar occultation measurements of the O2 A-band spectra during the operational period of ADEOS-II in 2003. Based on the actual measured data during the smallest atmospheric variability, the repeatability of the measurement, which is a measure of the measurement precision, for temperature and pressure was estimated to be 1-2 K and 0.5-2%, respectively. Comparisons between ILAS-II and the U.K. Met. Office (UKMO) stratospheric analyses or the NASA's UARS/HALOE and TIMED/SABER temperature data are performed. Regardless of the good precision, it is found that the ILAS-II temperatures are systematically lower in the stratosphere and significantly higher in the lower mesosphere.

Paper Details

Date Published: 30 December 2004
PDF: 11 pages
Proc. SPIE 5652, Passive Optical Remote Sensing of the Atmosphere and Clouds IV, (30 December 2004); doi: 10.1117/12.570872
Show Author Affiliations
Takafumi Sugita, National Institute for Environmental Studies (Japan)
Tatsuya Yokota, National Institute for Environmental Studies (Japan)
Hideaki Nakajima, National Institute for Environmental Studies (Japan)
Hirokazu Kobayashi, Central Research Institute of Electric Power Industry (Japan)
Naoko Saitoh, National Institute for Environmental Studies (Japan)
Hiroyuki Kawasaki, Fujitsu FIP Corp. (Japan)
Masatoshi Usami, Fujitsu FIP Corp. (Japan)
Hisaya Saeki, Fujitsu FIP Corp. (Japan)
Mariko Horikawa, Fujitsu FIP Corp. (Japan)
Yasuhiro Sasano, National Institute for Environmental Studies (Japan)


Published in SPIE Proceedings Vol. 5652:
Passive Optical Remote Sensing of the Atmosphere and Clouds IV
Si Chee Tsay; Tatsuya Yokota; Myoung-Hwan Ahn, Editor(s)

© SPIE. Terms of Use
Back to Top