Observation of ozone in the Arctic upper stratsophere
Grant-in-Aid for international Scientific Research
|Allocation Type||Single-year Grants|
|Research Institution||National Institute of Polar Research|
OKANO Shoichi National Institute of Polar Research, Professor, 研究系, 教授 (10004483)
GERNANDT Hartwig Alfred Wegener Institute, Senior Scientist, 上級研究員
YAJIMA Nobuyuki Inst.Space and Astronautical Sci., Professor, 教授 (30200489)
NAKAJIMA Hideaki Nagoya University, Assistant Professor, 太陽地球環境研究所, 助手 (20217722)
KOIKE Makoto Nagoya University, Assistant Professor, 太陽地球環境研究所, 助手 (00225343)
KONDO Yutaka Nagoya University, Professor, 太陽地球環境研究所, 教授 (20110752)
TAGUCHI Makoto Tohoku University, Assistant Professor, 理学部, 助手 (70236404)
FUKUNISHI Hiroshi Tohoku University, Professor, 理学部, 教授 (90099937)
|Project Period (FY)
Completed(Fiscal Year 1995)
|Budget Amount *help
¥2,900,000 (Direct Cost : ¥2,900,000)
Fiscal Year 1995 : ¥2,900,000 (Direct Cost : ¥2,900,000)
|Keywords||ozone / minor constituents / stratosphere / balloon / FTIR / Arctic / Spitzbergen / Kiruna|
1.Observation of ozone profiles in the arctic summer stratosphere was carried out at Ny Alesund in Spitzbergen, Norway in 1995 using an optical ozone sensor on board a BT-5 high altitude balloon.Two personnels were sent to the site for this observation.Four launches were as follows and good data were obtained for each launch.
'ECC on board' means ECC was on the same balloon to make a comparative measurements and 'ECC on rubber balloon' means concurrent launch of ECC with a rubber balloon.
2.Ground observation of ozone chemistry related atmospheric minor constituents ; HCl, HF,HNO_3, O_3, ClONO_2, CH_4 and N_2O in the arctic winter was made at Kimura, Sweden in March 1996 with a FTIR.One personnel was sent to the site.
3.Results from observations in the arctic, except for the ground observation at Kiruna whose data have not been processed yet, have been examined as follows :
(1) Comparison of ozone profiles obtained with an optical sensor and an ECC ozonesonde showed that both profiles agree well each other below 30km and that a distinct structure around 40km was seen in the optically obtained profile while ECC profile above 30km decreases monotonically with altitude.This indicates that ozone profiles can be obtained with the optical method even above 40km while ECC becomes unreliable due to its low pumping efficiency in high altitudes.
(2) Ozone profiles up to the upper stratosphere in the arctic have been obtained in two summers including 1995.
Research Output (6results)