Waves in airglow structures experiment 2004: Overview and preliminary results

Iwagami, N.; Ohtsuki, Shoko; Akojima, M.; Kubota, Minoru; Murayama, Yasuhiro; Kawamura, Seiji; Yoshimura, Reiko; Nakamura, Takuji; Yamamoto, Hiromasa; Sekiguchi, Hiroyuki; Kimura, N.; Shiokawa, K.; Okada, T.; Ishisaka, Keigo; Ashihara, Yuki; Kaiho, Yoshiyuki; Abo, Makoto; Abe, Takumi; Koizumi, Yoshiko; Oyama, K.‐I.

doi:10.1016/j.asr.2005.02.022

Cited by 8 publications

(10 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In fact, ripple structures were observed in the all‐sky image of the OI 558 nm line at Sata and also appeared in the all‐sky images of the OI 558 nm line and the O 2 atmospheric (0,1) band at Yamagawa. From the volume emission rate measurements of the OI 558 nm line, the O 2 atmospheric (0,0) band at 762 nm, and the OH (6,2) band at 836 nm by Airglow photometer (AGL) on board the rocket [ Iwagami et al , 2005], the main peaks of the OI emission and the O 2 atmospheric band emission are at 97 and 95 km, respectively. The ripple structure is not observed by the all‐sky image of the OH Meinel band, whose main peak is at 90 km.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

In situ observations of instabilities in the mesopause region using foil chaff technique during the Waves in Airglow Structures Experiment (WAVE) campaigns

Koizumi¹,

Kubota²,

Murayama³

et al. 2009

J. Geophys. Res.

View full text Add to dashboard Cite

[1] In order to investigate the dynamics of the mesopause region, foil chaff experiments were carried out successfully during the WAVE2000 and WAVE2004 campaigns at Kagoshima, Japan. In the WAVE2004 campaign, the height profiles of the horizontal and vertical wind speeds were obtained. The wind shear layers of >40 m/s/km were located around the altitudes of 89 and 95 km, and the profile of the Richardson number reveals the existence of dynamically unstable layers at about the same height region. Ripple observations using the all-sky imagers also support the possibility of dynamical instabilities. In the WAVE2000 campaign, a prominent small-scale feature around an altitude of 90.5 km appeared in both the horizontal and vertical chaff motions. These results demonstrate that the foil chaff technique is a valuable tool for in situ observation of small-scale turbulence features around the mesopause.

show abstract

Section: Discussionmentioning

confidence: 99%

“…The second campaign, WAVE2004, was conducted at the same place, Kagoshima, in January 2004. An overview and the initial results of the WAVE2004 campaign have been presented by Iwagami et al [2005], and Kubota et al [2006] presented the result of the detailed data analysis and discussed the source of the AGW.…”

Section: Wave Campaignsmentioning

confidence: 99%

In situ observations of instabilities in the mesopause region using foil chaff technique during the Waves in Airglow Structures Experiment (WAVE) campaigns

Koizumi¹,

Kubota²,

Murayama³

et al. 2009

J. Geophys. Res.

View full text Add to dashboard Cite

show abstract

“…This wavelength is quite large as compared to the AGW usually observed by the ASI. According to the rocket‐borne measurement, peak altitude of the emission rate of the OI 557.7‐nm airglow was 97 km at this time [ Iwagami et al , 2005]. Therefore wave parameters obtained from the OI 557.7‐nm airglow observation by the ASI indicate the status of the AGW at around 97 km altitude.…”

Section: Resultsmentioning

confidence: 98%

“…The ground‐based instruments described above were operated simultaneously. An overview and the preliminary results of this experiment have been presented by Iwagami et al [2005].…”

Section: Resultsmentioning

confidence: 99%

“…In this experiment, the following elements were added to overcome the above problems: (1) a Na lidar to monitor waves at 85–105 km continuously and (2) ground‐based measurements for at least 2 hours before the rocket launch in order to observe long‐period waves. An overview and the initial results of WAVE2004 have been presented by Iwagami et al [2005].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A fast‐propagating, large‐scale atmospheric gravity wave observed in the WAVE2004 campaign

et al. 2006

View full text Add to dashboard Cite

[1] The Waves in Airglow Campaign in 2004 (WAVE2004), which aimed to elucidate the formation process of waves in airglow structures from both dynamical and chemical perspectives, was conducted using rocket-borne and ground-based instruments in Japan on 17 January 2004. In this experiment, we observed a large-scale atmospheric gravity wave (AGW), which appeared in both the vertical profiles of sodium density obtained by a Na lidar and the horizontal distributions of airglow emission obtained by an all-sky imager (ASI). Vertical propagation of the AGW accompanied by a shortening of its vertical wavelength was clearly visualized using the Na lidar data. The horizontal wavelength, horizontal phase velocity, period, and propagation direction of the AGW were estimated from the ASI data as 673-774 km, 107-122 m/s, $1.75 hours, and north-northeastward, respectively. Using these parameters and the MF radar wind, vertical wavelengths of the wave were calculated from the dispersion relation of gravity waves. The calculated vertical wavelengths were comparable at altitudes of 85.5 km and 93.25 km to those estimated from the variation of the sodium density. Using a simple ray tracing technique, the AGW was traced back to the southern edge of the distorted jet stream near tropopause. This result strongly suggests that an unstable baroclinic wave associated with ageostrophic motions in the jet stream was the wave source of the large-scale AGW observed in the WAVE2004.

show abstract

Multiple Airglow Chemistry approach for atomic oxygen retrievals on the basis of insitu nightglow emissions

Lednyts'kyy

Savigny

Sinnhuber

et al. 2019

Journal of Atmospheric and Solar-Terrestrial Physics

View full text Add to dashboard Cite

Waves in airglow structures experiment 2004: Overview and preliminary results

Cited by 8 publications

References 18 publications

In situ observations of instabilities in the mesopause region using foil chaff technique during the Waves in Airglow Structures Experiment (WAVE) campaigns

In situ observations of instabilities in the mesopause region using foil chaff technique during the Waves in Airglow Structures Experiment (WAVE) campaigns

A fast‐propagating, large‐scale atmospheric gravity wave observed in the WAVE2004 campaign

Multiple Airglow Chemistry approach for atomic oxygen retrievals on the basis of insitu nightglow emissions

Contact Info

Product

Resources

About