• 625 引用
  • 14 h指数
1983 …2019

Research output per year

Pureに変更を加えた場合、すぐここに表示されます。

研究成果

  • 625 引用
  • 14 h指数
  • 37 記事
2019

Diagnostics of a WN2-Type Major Sudden Stratospheric Warming Event in February 2018 Using a New Three-Dimensional Wave Activity Flux

Harada, Y., Sato, K., Kinoshita, T., Yasui, R., Hirooka, T. & Naoe, H., 6 27 2019, : : Journal of Geophysical Research: Atmospheres. 124, 12, p. 6120-6142 23 p.

研究成果: ジャーナルへの寄稿記事

On the dynamics of the spring seasonal transition in the two hemispheric high-latitude stratosphere

Wang, T., Zhang, Q., Hannachi, A., Lin, Y. & Hirooka, T., 1 1 2019, : : Tellus, Series A: Dynamic Meteorology and Oceanography. 71, 1, p. 1-18 18 p.

研究成果: ジャーナルへの寄稿記事

公開

Primary factors behind the Heavy Rain Event of July 2018 and the subsequent heat wave in Japan

Shimpo, A., Takemura, K., Wakamatsu, S., Togawa, H., Mochizuki, Y., Takekawa, M., Tanaka, S., Yamashita, K., Maeda, S., Kurora, R., Murai, H., Kitabatake, N., Tsuguti, H., Mukougawa, H., Iwasaki, T., Kawamura, R., Kimoto, M., Takayabu, I., Takayabu, Y. N., Tanimoto, Y. および5人, Hirooka, T., Masumoto, Y., Watanabe, M., Tsuboki, K. & Nakamura, H., 1 1 2019, : : Scientific Online Letters on the Atmosphere. 15, A, p. 13-18 6 p.

研究成果: ジャーナルへの寄稿記事

公開
4 引用 (Scopus)

Troposphere-stratosphere dynamical coupling in regard to the north atlantic eddy-driven jet variability

Iqbal, W., Hannachi, A., Hirooka, T., Chafik, L. & Harada, Y., 1 1 2019, : : Journal of the Meteorological Society of Japan. 97, 3, p. 657-671 15 p.

研究成果: ジャーナルへの寄稿記事

公開
2018

Analysis of the Ozone Reduction Event Over the Southern Tip of South America in November 2009

Akiyoshi, H., Kadowaki, M., Nakamura, H., Sugita, T., Hirooka, T., Harada, Y. & Mizuno, A., 11 27 2018, : : Journal of Geophysical Research: Atmospheres. 123, 22, p. 12,523-12,542

研究成果: ジャーナルへの寄稿記事

2017
3 引用 (Scopus)

Stratospheric tropical warming event and its impact on the polar and tropical troposphere

Kodera, K., Eguchi, N., Mukougawa, H., Nasuno, T. & Hirooka, T., 1 12 2017, : : Atmospheric Chemistry and Physics. 17, 1, p. 615-625 11 p.

研究成果: ジャーナルへの寄稿記事

2 引用 (Scopus)
2016

Predictability changes of stratospheric circulations in northern hemisphere winter

Ichimaru, T., Noguchi, S., Hirooka, T. & Mukougawa, H., 1 1 2016, : : Journal of the Meteorological Society of Japan. 94, 1, p. 7-24 18 p.

研究成果: ジャーナルへの寄稿記事

5 引用 (Scopus)
2015

Month-to-month predictability variations of the winter-time stratospheric polar vortex in an operational one-month ensemble prediction system

Noguchi, S., Mukougawa, H., Hirooka, T., Taguchi, M. & Yoden, S., 1 1 2015, : : Journal of the Meteorological Society of Japan. 92, 6, p. 543-558 16 p.

研究成果: ジャーナルへの寄稿記事

5 引用 (Scopus)
2014
11 引用 (Scopus)
2012

Ionospheric current system during sudden stratospheric warming events

Yamazaki, Y., Yumoto, K., McNamara, D., Hirooka, T., Uozumi, T., Kitamura, K., Abe, S. & Ikeda, A., 1 1 2012, : : Journal of Geophysical Research: Space Physics. 117, 3, A03334.

研究成果: ジャーナルへの寄稿記事

33 引用 (Scopus)
2010

A major stratospheric sudden warming event in January 2009

Harada, Y., Goto, A., Hasegawa, H., Fujikawa, N., Naoe, H. & Hirooka, T., 6 1 2010, : : Journal of the Atmospheric Sciences. 67, 6, p. 2052-2069 18 p.

研究成果: ジャーナルへの寄稿記事

84 引用 (Scopus)
2009

Influence of stratospheric circulation on the predictability of the tropospheric Northern Annular Mode

Mukougawa, H., Hirooka, T. & Kuroda, Y., 4 28 2009, : : Geophysical Research Letters. 36, 8, L08814.

研究成果: ジャーナルへの寄稿記事

22 引用 (Scopus)
2008
45 引用 (Scopus)
2007
21 引用 (Scopus)

Predictability of the downward migration of the Northern Annular Mode: A case study for January 2003

Mukougawa, H. & Hirooka, T., 12 1 2007, : : Journal of the Meteorological Society of Japan. 85, 6, p. 861-870 10 p.

研究成果: ジャーナルへの寄稿記事

4 引用 (Scopus)
2006

Dynamical quantifications of ozone minihole formation in both hemispheres

Iwao, K. & Hirooka, T., 1 27 2006, : : Journal of Geophysical Research Atmospheres. 111, 2, D02104.

研究成果: ジャーナルへの寄稿記事

15 引用 (Scopus)
2005

High sensitivity to the initial condition for the prediction of stratospheric sudden warming

Mukougawa, H., Sakai, H. & Hirooka, T., 9 16 2005, : : Geophysical Research Letters. 32, 17, p. 1-4 4 p., L17806.

研究成果: ジャーナルへの寄稿記事

43 引用 (Scopus)
2004

Predictability of stratospheric sudden warming: A case study for 1998/99 winter

Mukougawa, H. & Hirooka, T., 7 1 2004, : : Monthly Weather Review. 132, 7, p. 1764-1776 13 p.

研究成果: ジャーナルへの寄稿記事

46 引用 (Scopus)
2003

Quasi-biennial variation of the 5-day wave in the stratosphere

Miyoshi, Y. & Hirooka, T., 10 16 2003, : : Journal of Geophysical Research D: Atmospheres. 108, 19, p. ACL 15-1 - 15-3

研究成果: ジャーナルへの寄稿記事

8 引用 (Scopus)
2002

Interannual variations of the general circulation and polar stratospheric ozone losses in a general circulation model

Watanabe, S., Hirooka, T. & Miyahara, S., 9 2002, : : Journal of the Meteorological Society of Japan. 80, 4 B, p. 877-895 19 p.

研究成果: ジャーナルへの寄稿記事

3 引用 (Scopus)
2000

Normal mode rossby waves as revealed by UARS/ISAMS observations

Hirooka, T., 5 1 2000, : : Journal of the Atmospheric Sciences. 57, 9, p. 1277-1285 9 p.

研究成果: ジャーナルへの寄稿記事

24 引用 (Scopus)
1999

A numerical experiment of excitation of the 5-day wave by a GCM

Miyoshi, Y. & Hirooka, T., 6 1 1999, : : Journal of the Atmospheric Sciences. 56, 11, p. 1698-1707 10 p.

研究成果: ジャーナルへの寄稿記事

32 引用 (Scopus)

Radiative and dynamical impacts of Arctic and Antarctic ozone holes: General circulation model experiments

Hirooka, T., Yoshikawa, M., Miyahara, S. & Kayahara, T., 1 1 1999, : : Advances in Space Research. 24, 12, p. 1637-1640 4 p.

研究成果: ジャーナルへの寄稿記事

1 引用 (Scopus)
1995

Long range transport of sulfur compounds over the western North Pacific: Deposition samples obtained on Islands

Dokiya, Y., Miyakoshi, N., Hirooka, T., Yamashita, J., Ishikawa, S., Ohya, M. & Sugaya, J., 1 1 1995, : : Journal of the Meteorological Society of Japan. 73, 5, p. 873-881 9 p.

研究成果: ジャーナルへの寄稿記事

14 引用 (Scopus)

Periods of planetary waves in geomagnetic variations

Kohsiek, A., Glassmeier, K. H. & Hirooka, T., 2 28 1995, : : Annales Geophysicae. 13, 2, p. 168-176 9 p.

研究成果: ジャーナルへの寄稿記事

27 引用 (Scopus)
1994

Long-term variations of stratospheric circulations: a comparison of mean fields in the 1980s with CIRA-1986 models

Hirooka, T., Yamashita, J. & Kawahira, K., 1 1 1994, : : Journal of Atmospheric and Terrestrial Physics. 56, 9, p. 1041-1049 9 p.

研究成果: ジャーナルへの寄稿記事

1992

Stratospheric Circulation of the Northern Hemisphere Winter during 1989-90

Hirooka, T., Hayashi, K. & Yamada, S., 1 1 1992, : : Journal of geomagnetism and geoelectricity. 44, 11, p. 1097-1106 10 p.

研究成果: ジャーナルへの寄稿記事

5 引用 (Scopus)

Variations of mean zonal winds relating to the ozone hole

Kawahira, K. & Hirooka, T., 1 1 1992, : : Journal of Geophysical Research. 97, D9, p. 10,157-10,163

研究成果: ジャーナルへの寄稿記事

3 引用 (Scopus)
1989

Further evidence of normal mode Rossby waves

Hirooka, T. & Hirota, I., 1 1 1989, : : Pure & Applied Geophysics. 138, 2-3, p. 277-289 13 p.

研究成果: ジャーナルへの寄稿記事

16 引用 (Scopus)

Further evidence of normal mode Rossby waves

Hirooka, T. & Hirota, I., 6 1 1989, : : Pure and Applied Geophysics PAGEOPH. 130, 2-3, p. 277-289 13 p.

研究成果: ジャーナルへの寄稿記事

5 引用 (Scopus)

Interannual temperature changes in the Antarctic lower stratosphere‐A relation to the ozone hole

Kawahira, K. & Hirooka, T., 1 1 1989, : : Geophysical Research Letters. 16, 1, p. 41-44 4 p.

研究成果: ジャーナルへの寄稿記事

1988

An intercomparison of medium-scale waves in the Northern and Southern Hemispheres

Hirooka, T., Kuki, T. & Hirota, I., 1 1 1988, : : Journal of the Meteorological Society of Japan. 66, 6, p. 857-868 12 p.

研究成果: ジャーナルへの寄稿記事

3 引用 (Scopus)
1986

Influence of normal mode Rossby waves on the mean field: interference with quasi-stationary waves.

Hirooka, T., 1 1 1986, : : Journal of the Atmospheric Sciences. 43, 19, p. 2088-2097 10 p.

研究成果: ジャーナルへの寄稿記事

11 引用 (Scopus)
1984

Normal mode Rossby waves observed in the upper stratosphere.

Hirota, I. & Hirooka, T., 1 1 1984, : : Unknown Journal. p. 199-213 15 p.

研究成果: ジャーナルへの寄稿記事

2 引用 (Scopus)
75 引用 (Scopus)
1983

Upper stratospheric circulations in the two hemispheres observed by satellites

Hirota, I., Hirooka, T. & Shiotani, M., 1 1 1983, : : Quarterly Journal of the Royal Meteorological Society. 109, 461, p. 443-454 12 p.

研究成果: ジャーナルへの寄稿記事

53 引用 (Scopus)