Peer-reviewed papers

 

 

1.        Imamura, T., K. Kita, N. Iwagami and T. Ogawa, Gravity wave characteristics derived from structured atomic oxygen profile and multiple Es layers, J. Geomagn. Geoelectr., 47, 961-972, 1995.

 

2.        Imamura, T., and T. Ogawa, A sensitivity study to infer tropospheric ozone from atmospheric thermal emission at 9.6 micrometer wavelength measured with a nadir view from a satellite, J. Meteor. Soc. Japan, 73, 255-258, 1995.

3.        Imamura, T., and T. Ogawa, Radiative damping of gravity waves in the terrestrial planetary atmospheres, Geophys. Res. Lett., 22, 267-270, 1995.

4.        Kita, K., T. Imamura, N. Iwagami, W.H. Morrow and T. Ogawa, Rocket observation of oxygen atom and night airglow 1. Measurement of oxygen atom concentration with an improved resonance fluorescence technique, Ann. Geophys., 14, 227-237, 1996.

5.        Kita, K., T. Imamura, N. Iwagami, W.H. Morrow and T. Ogawa, Variability of oxygen atom concentration in the lower thermosphere observed by rocket experiments, Adv. Space Res., 17, 85-88, 1996.

6.        Imamura, T., and T. Ogawa, Parameterization of surface brightness temperature to retrieve trace gases from radiance spectra measured with a nadir view, J. Atmos. and Ocean Tech., 14, 988-993, 1997.

7.        Imamura, T., Momentum balance of the Venusian midlatitude mesosphere, J. Geophys. Res., 102, 6615-6620, 1997.

8.        Imamura, T., K. Kita, N. Iwagami and T. Ogawa, Gravity wave signature simultaneously observed in the oxygen atom and electron density profiles in the lower thermosphere, Adv. Space Res., 19, 145-148, 1997.

9.        Imamura, T., and G. L. Hashimoto, Venus cloud formation in the meridional circulation, J. Geophys. Res., 103, 31349-31366, 1998.

10.     Mukai, T., T. Akabane, T. Hashimoto, H. Ishimoto, S. Sasaki, A. Inada, A. Toigo, M. Nakamura, Y. Abe, K. Kurita, T. Imamura, Observation of Mars and its satellites by the Mars Imaging Camera (MIC) on Planet-B, Earth Planets Space, 50, 183-188, 1998.

11.     Imamura, T., and G. L. Hashimoto, Microphysics of Venusian clouds in rising tropical air, J. Atmos. Sci., 58, 3597-3612, 2001.

12.     Hashimoto, G. L., and T. Imamura, Elucidating the rate of volcanism on Venus: Detection of lava eruptions using near-infrared observations, Icarus, 154, 239-243, 2001.

13.     Noguchi, K., T. Imamura, K.-I. Oyama, and A. Saito, Application of the GPS network to estimate the effect of the terrestrial ionosphere on the radio occultation measurements of planetary ionospheres, Radio Sci., 36, 1607-1614, 2001.

14.     Oyama, K. -I., A. Nabatov, N. Savich, Z. Yamamoto, T. Imamura, T. Ichikawa, and K. Noguchi, First test of the Nozomi radio science system in actual space flight, Adv. Space Res., 27(11), 1847-1850, 2001.

15.     Imamura, T., and G. L. Hashimoto, H2SO4 cycle in the Venusian tropical atmosphere as constrained by a microphysical cloud model, Adv. Space Res., 29(2), 249-254, 2002.

16.     Oyama, K. -I., A. Nabatov, N. Savich, T. Imamura, Z. Yamamoto, and K. Noguchi, Cislunar plasma exploration with the Selene radio science system, Adv. Space Res., 30(8), 1915-1919, 2002.

17.     Oyama, K. -I., T. Imamura, and T. Abe, Feasibility study for Venus atmosphere mission, Adv. Space Res., 29(2), 265-271, 2002.

18.     Noguchi, K., T. Imamura, K.-I. Oyama, and A. S. Nabatov, Radio-occultation projects in space programs of Japan, Radio Science Bulletin, 303, 27-31, 2002.

19.     Nabatov, A.S., T. Imamura, N.A. Savich, K.-I. Oyama, and K. Noguchi, Detectability of lunar plasma clouds from Selene radio occultations, Adv. Space Res., 31(11), 2369-2375, 2003.

20.     Imamura, T., T. Horinouchi, and T. Dunkerton, The lateral transport of zonal momentum due to Kelvin waves in a meridional circulation, J. Atmos. Sci., 61, 1966-1975, 2004.

21.     Ishii, N., H. Ymakawa, S. Sawai, M. Shida, T. Hashimoto, M. Nakamura, T. Imamura, T. Abe, K. Oyama, I. Nakatani, Current status of the PLANET-C Venus orbiter design, Adv. Space Res., 34, 1668-1672, 2004.

22.     Izutsu, N., N. Yajima, H. Honda, and T. Imamura, Venus Balloon using Water Vapor, Adv. Space Res., 33(10), 1831-1835, 2004.

23.     Imamura, T., K. Noguchi, A. Nabatov, K.-I. Oyama, Z. Yamamoto, and M. Tokumaru, Phase scintillation observation during coronal sounding experiments with NOZOMI spacecraft, Astron. Astrophys., 439, 1165-1169, 2005.

24.     Fukuhara, T., and T. Imamura, Waves encircling the summer southern pole of Mars observed by MGS TES, Geophys. Res. Lett., 32, L18811, doi:10.1029/2005GL023819, 2005.

25.     Ohtsuki, S., N. Iwagami, H. Sagawa, Y. Kasaba, M. Ueno, and T. Imamura, Ground-based observation of the Venus 1.27-micrometer O2 airglow, Adv. Space Res., 36(11), 2038-2042, 2005.

26.     Imamura, T., Meridional propagation of planetary-scale waves in vertical shear: implication for the Venus atmosphere, J. Atmos. Sci., 63, 1623-1636, 2006.

27.     Noguchi, K., T. Imamura, K.-I. Oyama, and G. E. Bodeker, A global statistical study on the origin of small-scale ozone vertical structures in the lower stratosphere, J. Geophys. Res., 111, doi:10.1029/2006JD007232, 2006.

28.     Haeusler, B., M. Paetzold, G.L. Tyler, R.A. Simpson, M.K. Bird, V. Dehant, J.-P. Barriot, W. Eidel, R. Mattei, S. Remus, J. Selle, S. Tellmann, and T. Imamura, Radio Science Investigations by VeRa onboard the Venus Express Spacecraft, Planet. Space Sci., 54, 1315-1335, 2006.

29.     Imamura, T., Y. Kawasaki, and T. Fukuhara, Mesoscale spectra of Mars' atmosphere derived from MGS TES infrared radiances, J. Atmos. Sci., 64, 1717-1726, 2007.

30.     Nakamura, M., T. Imamura, M. Ueno, N. Iwagami, T. Satoh, S. Watanabe, M. Taguchi, Y. Takahashi, M. Suzuki, T. Abe, G. L.. Hashimoto, T. Sakanoi, S. Okano, Y. Kasaba, J. Yoshida, M. Yamada, N. Ishii, T. Yamada, K.-I. Oyama, PLANET-C: Venus Climate Orbiter mission of Japan, Planet. Space Sci., 55, 1831-1842, 2007.

31.     Fukuhara, T., and T. Imamura, Diurnally varying structure of stationary waves encircling the summer southern pole of Mars observed by MGS TES, Geophys. Res. Lett., 34, L09809, doi:10.1029/2006GL028498, 2007.

32.     Taguchi, M., T. Fukuhara, T. Imamura, M. Nakamura, N. Iwagami, M. Ueno, M. Suzuki, G. L. Hashimoto, K. Mitsuyama, Longwave infrared camera onboard the Venus Climate Orbiter, Adv. Space Res., 40, 861-868, 2007.

33.     Patzold, M., B. Haeusler, M. K. Bird, S. Tellmann, R. Mattei, S. W. Asmar, V. Dehant, W. Eidel, T. Imamura, R. A. Simpson, and G. L. Tyler, The structure of Venus' middle atmosphere and ionosphere, Nature, 450, 657-660, 2007.

34.     Imamura, T., K.-I. Oyama, T. Iwata, Y. Kono, K. Matsumoto, Q. Liu, H. Noda, Y. Futaana, A. Nabatov, Possibility of studying the lunar ionosphere with SELENE radio science experiment, Earth, Planets and Space, 60, 387-390, 2008.

35.     Ohtsuki, S., N. Iwagami, H. Sagawa, M. Ueno, Y. Kasaba, T. Imamura and E. Nishihara, Imaging spectroscopy of the Venus 1.27-micrometer O2 airglow with ground-based telescopes, Adv. Space Res., 41(9), 1375-1380, 2008.

36.     Iwagami, N., S. Ohtsuki, K. Tokuda, N. Ohira, Y. Kasaba, T. Imamura, H. Sagawa, G.L. Hashimoto, S. Takeuchi, M. Ueno, S. Okumura, Hemispheric distributions of HCl above and below the Venus' clouds by ground-based 1.7 micrometer spectroscopy, Planet. Space Sci. 56, 1424-1434, 2008.

37.     Chassefiere E., O. Korablev, T. Imamura, et al., European Venus Explorer (EVE): an in-situ mission to Venus, Experimental Astronomy, DOI 10.1007/s10686-008-9093-x, 2008.

38.     Fukuhara, T., and T. Imamura, Hemispheric difference in the momentum transport by waves encircling the summer polar region of Mars observed by MGS TES, J. Geophys. Res., 113, E05006, doi:10.1029/2007JE002999, 2008.

39.     Takahashi, Y., J. Yoshida, Y. Yair, T. Imamura, and M. Nakamura, Lightning detection by LAC onboard the Japanese Venus climate orbiter, Planet-C, Space Sci. Rev., 137, 317–334, doi:10.1007/s11214-008-9400-x., 2008.

 

40.     Imamura, T., and H. Kobayashi, Wavenumber spectra of planetary-scale disturbances in the Mars atmosphere, Icarus, 199, 286-294, 2009.

41.     Imamura, T., T. Iwata, Z. Yamamoto, N. Mochizuki, Y. Kono, K. Matsumoto, Q. Liu, H. Noda, H. Hanada, K.-I. Oyama, A. Nabatov, Y. Futaana, A. Saito, and H. Ando, Studying the Lunar Ionosphere with SELENE Radio Science Experiment, Space Science Reviews, 154, 305-316, 2010.

 

42.     Efimov, I., T. Imamura, K.-I. Oyama, K. Noguchi, L. N. Samoznaev, A. S. Nabatov, M. K. Bird, and I. V. Chashei, Properties of the turbulence of the solar wind from radio-eclipse experiments with the NOZOMI spacecraft, Astronomy Reports, 54, 1031-1041, 2010.

 

43.     Imamura, T., and Y. Ito, Quasi-periodic dust events in the summertime south polar region of Mars, Icarus, 211, 498–503, doi:10.1016/j.icarus.2010.08.014, 2011.

44.     Nakamura, M., T. Imamura, N. Ishii, T. Abe, T. Satoh, M. Suzuki, M. Ueno, A. Yamazaki, N. Iwagami, S. Watanabe, M. Taguchi, T. Fukuhara, Y. Takahashi, M. Yamada, N. Hoshino, S. Ohtsuki, K. Uemizu, G. L. Hashimoto, M. Takagi, Y. Matsuda, K. Ogohara, N. Sato, Y. Kasaba, T. Kouyama, N. Hirata, R. Nakamura, Y. Yamamoto, N. Okada, T. Horinouchi, M. Yamamoto, and Y. Hayashi, Overview of Venus orbiter, Akatsuki, Earth Planets Space, 63, 443-457, doi:10.5047/eps.2011.02.009, 2011.

 

45.     Imamura, T., T. Toda, A. Tomiki, D. Hirahara, T. Hayashiyama, N. Mochizuki, Z. Yamamoto, T. Abe, T. Iwata, H. Noda, Y. Futaana, H. Ando, B. Haeusler, M. Patzold, and A. Nabatov, RS: Radio Science investigation of the Venus atmosphere and ionosphere with Venus orbiter, Akatsuki, Earth Planets Space, 63, 493–501, doi:10.5047/eps.2011.03.009, 2011.

 

46.     Tetsuya Fukuhara, Makoto Taguchi, Takeshi Imamura, Masato Nakamura, Munetaka Ueno, Makoto Suzuki, Naomoto Iwagami,  Mitsuteru Sato, Kazuaki Mitsuyama, George Hashimoto, Ryo Ohshima, Toru Kouyama, Hiroki Ando, and Masahiko Futaguchi, LIR: Longwave Infrared Camera onboard the Venus orbiter Akatsuki, Earth Planets Space, 63, doi:10.5047/eps.2011.06.019, 1009-1018, 2011.

 

47.     Kouyama, T., T. Imamura, M. Nakamura, T. Satoh and Y. Futaana, Horizontal structure of planetary-scale waves at the cloud top of Venus deduced from Galileo SSI images with an improved cloud-tracking technique, Planet Space Sci. 60, doi:10.1016/j.pss/2011.08.008, 207-216, 2012.

 

48.     Ogohara, K., T. Kouyama, H. Yamamoto, N. Sato, M. Takagi, and T. Imamura, A newly developed cloud tracking system for the Venus Climate Orbiter Akatsuki and preliminary results using Venus Express data, Theoretical and Applied Mechanics Japan, 60, 195-204, 2012.

 

49.     Ogohara, K., T. Kouyama, H. Yamamoto, N. Sato, M. Takagi, T. Imamura, Automated cloud tracking system for the Akatsuki Venus Climate Orbiter data, Icarus, 217, doi:10.1016/j.icarus.2011.05.017, 2661–668, 2012

 

50.     Taguchi, M. T. Fukuhara, M. Futaguchi, M. Sato, T. Imamura, K. Mitsuyama, M. Nakamura, M. Ueno, M. Suzuki, N. Iwagami, and G. L. Hashimoto, Characteristic features in Venusf nightside cloud-top temperature obtained by Akatsuki/LIR, Icarus, 219, 502-509, 10.1016/j.icarus.2012.01.024, 2012.

 

51.     Ando, H., T. Imamura, and T. Tsuda, Vertical wavenumber spectra of gravity waves in the Martian atmosphere obtained from Mars Global Surveyor radio occultation data, J. Atmos. Sci., 69, 2906-2912, doi: 10.1175/JAS-D-11-0339.1, 2012.

 

52.     Imamura, T., A. Nabatov, N. Mochizuki, T. Iwata, H. Hanada, K. Matsumoto, H. Noda, Y. Kono, Q. Liu, Y. Futaana, H. Ando, Z. Yamamoto, K.-I. Oyama, and A. Saito, Radio occultation measurement of the electron density near the lunar surface using a subsatellite on the SELENE mission, J. Geophys. Res., 117, A06303, doi:10.1029/2011JA017293, 2012.

 

53.     Ando, H., T. Imamura, A. Nabatov, Y. Futaana, T. Iwata, H. Hanada, K. Matsumoto, N. Mochizuki, Y. Kono, H. Noda, Q. Liu, K. -I. Oyama, Z. Yamamoto, and A. Saito, Dual-spacecraft radio occultation measurement of the electron density near the lunar surface by the SELENE mission, J. Geophys. Res., 117, A08313, doi:10.1029/2011JA017141, 2012.

 

54.     Tellmann, S., B. Haeusler, D. P. Hinson, G. L. Tyler, T. P. Andert, M. K. Bird, T. Imamura, M. Patzold, and S. Remus, Small-scale temperature fluctuations seen by the VeRa Radio Science Experiment on Venus Express, Icarus, 221, 471–480, 2012.

 

55.     Kouyama, T., T. Imamura, M. Nakamura, T. Satoh, and Y. Futaana, Long-term variation in the cloud-tracked zonal velocities at the cloud top of Venus deduced from Venus Express VMC images, J. Geophys. Res., 118, 37–46, DOI:10.1029/2011JE004013, 2013.

 

56.     Imamura, T., T. Higuchi, Y. Maejima, M. Takagi, N. Sugimoto, K. Ikeda, and H. Ando, Inverse insolation dependence of Venus' cloud-level convection, Icarus, 228, 181–188, 2014.

 

57.     Imamura, T., M. Tokumaru, H. Isobe, D. Shiota, H. Ando, M. Miyamoto, T. Toda, B. Häusler, M. Pätzold, A. Nabatov, A. Asai, K. Yaji, M. Yamada, M. Nakamura, Outflow structure of the quiet Sun corona probed by spacecraft radio scintillations in strong scattering, Astrophys. J., 788, 117(10pp), doi:10.1088/0004-637X/788/2/117, 2014.

 

58.     Peralta, J., T. Imamura, P. Read, D. Luz, A. Piccialli, and M. Angel López-Valverde, Analytical solution for waves in planets with atmospheric superrotation. part 1: acoustic and inertia-gravity waves, Astrophys. J. Suppl. Ser., 213:17, doi:10.1088/0067-0049/213/1/17, 2014a.

 

59.     Peralta, J., T. Imamura, P. Read, D. Luz, A. Piccialli, and M. Angel López-Valverde, Analytical solution for waves in planets with atmospheric superrotation. part 2: lamb, surface, and centrifugal waves, Astrophys. J. Suppl. Ser., 213:18, doi: 10.1088/0067-0049/213/1/18, 2014b.

 

60.     Sato, T.M., H. Sagawa, T. Kouyama, K. Mitsuyama, T. Satoh, S. Ohtsuki, M. Ueno, Y. Kasaba, M. Nakamura, T. Imamura, Cloud top structure of Venus revealed by Subaru/COMICS mid-infrared images, Icarus, 243, 386–399, doi:10.1016/j.icarus.2014.09.004, 2014.

 

61.     Miyamoto, M., T. Imamura, M. Tokumaru, H. Ando, H. Isobe, A. Asai, D. Shiota, T. Toda, B. Häusler, M. Pätzold, A. Nabatov, M. Nakamura, Radial distribution of compressive waves in the solar corona revealed by Akatsuki radio occultation observations, Astrophys. J., 797, 51(7pp), doi:10.1088/0004-637X/797/1/51, 2014.

 

62.     Satoh, T., Ohtsuki, S., Iwagami, N., Ueno, M., Uemizu, K., Suzuki, M., Hashimoto, G. L., Sakanoi, T., Kasaba, Y., Nakamura, R., Imamura, T., Nakamura, M., Fukuhara, T., Yamazaki, A., Yamada, M., Venus' clouds as inferred from the phase curves acquired by IR1 and IR2 on board Akatsuki, Icarus, 248, 213–220, doi:10.1016/j.icarus.2014.10.030, 2015.

 

63.     Kouyama, T., T. Imamura, M. Nakamura, T. Satoh, Y. Futaana, Vertical propagation of planetary-scale waves in variable background winds in the upper cloud region of Venus, Icarus, 248, 560–568, doi:10.1016/j.icarus.2014.07.011, 2015.

 

64.     Kanao, M., T. Shimizu, T. Imamura, and M. Nakamura, Hinode SOT plate scale reinvestigated by G-band images on the 2012 transit of Venus, Solar Phys., 290, 1491-1506, 2015.

 

65.     Lee, Y. J., T. Imamura, S. E. Schroder, and E. Marcq, Long-term variations of the UV contrast on Venus observed by the Venus Monitoring Camera onboard Venus Express, Icarus, 253, 1-15, 2015.

 

66.     Ando, H., T. Imamura, T. Tsuda, S. Tellmann, M. Pätzold and B. Häusler, Vertical wavenumber spectra of gravity waves in the Venus atmosphere obtained from Venus Express radio occultation data: evidence for saturation, J. Atmos. Sci., 72, 2318-2329, 2015. doi:10.1175/JAS-D-14-0315.1

 

67.     Ando, H., D. Shiota, T. Imamura, M. Tokumaru, A. Asai, H. Isobe, M. Pazold, B. Hausler, and M. Nakamura, Internal structure of a coronal mass ejection revealed by Akatsuki radio occultation observations, J. Geophys. Res., 120, 5318–5328, doi:0.1002/2015JA021076, 2015.

 

68.     Imamura, T., A. Watanabe, Y. Maejima, Convective generation and vertical propagation of fast gravity waves on Mars: one- and two-dimensional modeling, Icarus, 267, 51-63, 2016.