Takanori Nishiyama

J-GLOBAL         Last updated: Jul 2, 2019 at 16:35
 
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Name
Takanori Nishiyama
Affiliation
National Institute of Polar Research
Research funding number
00704876
ORCID ID
0000-0002-3648-6589

Research Areas

 
 

Academic & Professional Experience

 
Apr 2015
 - 
Today
Assistant Professor, National Institute of Polar Research
 
Nov 2017
 - 
Mar 2019
JARE59 winter party
 
Nov 2016
 - 
Mar 2017
JARE58 summer party
 
Jan 2015
 - 
Mar 2015
Project Assistant Professor, National Institute of Polar Research
 
Apr 2013
 - 
Jan 2015
Project Researcher, National Institute of Polar Research
 

Published Papers

 
Observation of synchronization between instabilities of the sporadic E layer and geomagnetic field line connected F-region medium-scale traveling ionospheric disturbances
Mitsumu K. Ejiri, Takuji Nakamura, Takuo T. Tsuda, Takanori Nishiyama, Makoto Abo, Toru Takahashi, Katsuhiko Tsuno, Takuya D. Kawahara, Takayo Ogawa and Satoshi Wada
Journal of Geophysical Research - Space Physics   accepted    May 2019   [Refereed]
Mitsumu K. Ejiri, Takuji Nakamura, Takuo T. Tsuda, Takanori Nishiyama, Makoto Abo, Toru Takahashi, Katsuhiko Tsuno, Takuya D. Kawahara, Takayo Ogawa and Satoshi Wada
Earth, Planets and Space      Jan 2019   [Refereed]
The vertical fine structures and the time evolution of plasma irregularities in the sporadic E (Es) layer were observed via calcium ion (Ca+) density measurements using a resonance scattering lidar with a high time-height resolution (5 s and 15 m)...
Ryuho Kataoka, Takanori Nishiyama, Yoshimasa Tanaka, Akira Kadokura, Herbert Akihito Uchida, Yusuke Ebihara, Mitsumu K. Ejiri, Yoshihiro Tomikawa, Masaki Tsutsumi, Kaoru Sato, Yoshizumi Miyoshi, Kazuo Shiokawa, Satoshi Kurita, Yoshiya Kasahara, Mitsunori Ozaki, Keisuke Hosokawa, Shoya Matsuda, Iku Shinohara, Takeshi Takashima, Tatsuhiko Sato, Takefumi Mitani, Tomoaki Hori and Nana Higashio
Earth, Planets and Space      Jan 2019   [Refereed]
Transient mesospheric echo in the VHF range was detected at an altitude of 65–70 km during the auroral breakup that occurred from 2220 to 2226 UT on June 30, 2017. During this event, the footprint of the Arase satellite was located within the fiel...
Ozaki et al.
Geophysical Research Letters      Nov 2018   [Refereed]
Rapid (<1 s) intensity modulation of pulsating auroras is caused by successive chorus elements as a response to wave‐particle interactions in the magnetosphere. Here we found that a pulsating auroral patch responds to the time spacing for successi...
Kogure M., T. Nakamura, M. K. Ejiri, T. Nishiyama, Y. Tomikawa and M. Tsutsumi
Geophysical Research Letters      May 2018   [Refereed]
Nightly mean potential energy of gravity waves (GWs) per unit mass (Ep) over Syowa Station (69°S, 40°E) was calculated from temperature profiles observed by the Rayleigh/Raman lidar from 2011 to 2015. The Ep values in the upper stratosphere and lo...
Nishiyama T., K. Sato, T. Nakamura, M. Tsutsumi, T. Sato, Y.-M. Tanaka, K. Nishimura, Y. Tomikawa, and M. Kohma
Journal of Geophysical Research - Space Physics   123 1-14   Apr 2018   [Refereed]
This study focuses on the one‐to‐one relationship between the morphology of polar mesosphere winter echo (PMWE) and cosmic noise absorption (CNA) as determined by measurements made with a single atmospheric radar, the Program of the Antarctic Syow...
Kogure M., T. Nakamura, M. K. Ejiri, T. Nishiyama, Y. Tomikawa, M. Tsutsumi, H. Suzuki, T. T. Tsuda, T. D. Kawahara, and M. Abo
J. Geophys. Res. Atmos   122    Jul 2017   [Refereed]
The potential energy of gravity waves (GWs) per unit mass (Ep), at altitudes of 15–70 km, has been examined from temperature profiles obtained by a Rayleigh/Raman lidar at Syowa Station (69°S, 40°E) from May 2011 to October 2013, with the exceptio...
Tsuda T. T., T. Nakamura, M. K. Ejiri, T. Nishiyama, K. Hosokawa, T. Takahashi, J. Gumbel, J. Hedin
Geophysical Research Letters      Apr 2017   [Refereed]
We have performed a statistical investigation of the global response of the Na layer to geomagnetic activity using Na density data from 2004 to 2010 obtained using the Optical Spectrograph and Infrared Imager System (OSIRIS) on board the Odin sate...
Yoko Fukuda, Ryuho Kataoka, Yoshizumi Miyoshi, Yuto Katoh, Takanori Nishiyama, Kazuo Shiokawa, Yusuke Ebihara, Donald Hampton, and Naomoto Iwagami
Polar Science   10(3) 183-191   Apr 2016   [Refereed]
We report rapid motion of pulsating auroras associated with so called ​3 ± 1 Hz modulations embedded in the main pulsations. During the pulsation ON phase, repetitive expansions are often observed around the edges of pulsating patches. Some events...
Nishiyama T., K. Sato, T. Nakamura, M. Tsutsumi, T. Sato, M. Kohma, K. Nishimura, Y. Tomikawa, M. K. Ejiri, and T. T. Tsuda
Geophysical Research Letters   42(7) 2100-2108   Mar 2015   [Refereed]
We report height and time variations in polar mesosphere winter echoes (PMWE) based on the Program of the Antarctic Syowa mesosphere‐stratosphere‐troposphere/incoherent scatter (PANSY) radar observations. PMWE were identified for 110 days from Mar...

Conference Activities & Talks

 
Spectral investigations of near infrared aurora and airglow at 1.0-1.6 microns: 1-year ground-based imaging spectroscopic observation at Syowa station (69.0°S, 39.6°E)
TaTakanori Nishiyama, Takeshi Sakanoi, Makoto Taguchi, Hidehiko Suzuki
日本地球惑星科学連合2019年大会, PEM16-P03, 幕張メッセ(千葉)   30 May 2019   
1-year observation of imaging spectrum for aurora and airglow in near infrared wavelength (1.0-1.6 microns) at Syowa Station
Takanori Nishiyama, Makoto Taguchi, Hidehiko Suzuki, Takeshi Sakanoi
The 9th Symposium on Polar Science   6 Dec 2018   
Temperature and metallic atom variability near the mesopause obtained from a frequency-tunable resonance scattering lidar at Syowa, Antarctica in 2017-18.
T. Nishiyama, M. K. Ejiri, T. T. Tsuda, K. Tsuno, M. Abo, T. D. Kawahara, T. Takahashi, T. Ogawa, S. Wada, K. Sato, and T. Nakamura
The 9th Symposium on Polar Science   6 Dec 2018   
A ground-based observation of imaging spectrum in near infrared wavelength (1.0-1.6 microns) at Syowa Station
Takanori Nishiyama, Makoto Taguchi, Hidehiko Suzuki, Takeshi Sakanoi
144th SGEPSS Meeting   25 Nov 2018   
Temperature and metallic atom/ion variability near the mesopause by a resonance scattering lidar at Syowa, Antarctica in 2017-18.
T. Nishiyama, M. K. Ejiri, T. T. Tsuda, K. Tsuno, M. Abo, T. D. Kawahara, T. Takahashi, T. Ogawa, S. Wada, K. Sato, and T. Nakamura
144th SGEPSS Meeting   24 Nov 2018   
A new optical observation plan at Syowa station: Aurora spectrum in near infrared wavelength (1.0-1.6 microns)
Nishiyama T., M. Taguchi, H. Suzuki, T. Sakanoi
5 Dec 2017   
A ground-based observation plan for aurora spectrum in near infrared wavelength (1.0-1.6 microns) at Syowa Station
Nishiyama T., M. Taguchi, H. Suzuki, T. Sakanoi
19 Oct 2017   
Pulsating aurora in the noon to dusk side during Summer Solstice Storm 2015 based on Syowa and Van Allen Probes observations
Nishiyama T., A. Kadokura, Y. Tanaka, Y. Miyoshi, S. Kurita, M. Okada, H. Yamagishi
The Seventh Symposium on Polar Science   29 Nov 2016   
Event study on pulsating aurora in the noon to dusk side during Summer Solstice Storm 2015 based on Syowa and Van Allen Probes
Nishiyama T., A. Kadokura, Y. Tanaka, Y. Miyoshi, S. Kurita, M. Okada, H. Yamagishi
20 Nov 2016   
Time and height variability of Fe-layer in the Mesosphere and the Lower Thermosphere region at NIPR (36°N, 140°E)
Nishiyama, T., M. K. Ejiri, T. T. Tsuda, K. Tsuno, M. Abo, T. D. Kawahara, T. Ogawa, S. Wada, T. Nakamura
21 Nov 2016   

Books etc

 
Fine-scale characteristics of black aurora and its generation process, Auroral Phenomenology and Magnetospheric Processes: Earth and Other Planets, Geophys. Monogr. Ser., vol. 197, edited by A. Keiling et al. 271-278
Sakanoi, T. Y. Obuchi, Y. Ebihara, Y. Miyoshi, K. Asamura, A. Yamazaki, Y. Kasaba, M. Hirahara, T. Nishiyama, and S. Okano (Part:Joint Work)
AGU, Washington, D. C.   Jan 2012