About Me

I come from the smallest and most densely populated country in Central America (hint). I did my undergraduate and graduate studies in Toulouse, France. Now, thanks to LGS Program from Nagoya University, I obtained my doctorate degree in Japan this past March working under the supervision of Prof. Kazuo Shiokawa. I'm currently continuing as a cooperation research fellow in the Division for Ionospheric and Magnetospheric Research of ISEE, in the wonderful city of Nagoya, Japan.

Thanks to a JSPS fellowship promoting international collaboration I will be spending a year as a visiting scholar at the ATMOS department of UCLA working with Jacob Bortnik's group.

My research project focuses on VLF/ELF emissions, their physical properties, generation and propagation. I have been using VLF loop-antennas with high-sampling rates located at subauroral latitudes in Canada and applying a spectral and polarization analysis. I have also made a one-year statistical analysis using continuous monitoring from a ground station in Athabasca, Canada. More recently I have combined ground and satellite observations mainly using the RBSP satellites.
During my stay in UCLA I hope to broaden my knowledge on radiation belt dynamics. I'm currently studying the relationship of global lightning activity and losses of inner radiation belt electrons

I love science, sports (particularly soccer), reading and travelling. I also spend my free time watching science fiction and classic movies, keeping up with astronomy and photography. Always enjoying a cup of hot tea on a rainy day (or any day!). Proud member of the STEL's futsal team.

Contact Details

Claudia Martinez C.
Institute for Space-Earth Environmental Research, Nagoya University
Furo-cho Chikusa-ku Nagoya-shi
Aichi-ken,〒 464-8601, Japan

+81 (0)52-747-6417
claudia'at'isee.nagoya-u.ac.jp

Education

Science

Nagoya University, 名古屋大学
Doctor of Science, Graduate School of Science, Division of Particle and Astrophysical Science, Space Physics - Experiment (SSE)
Leadership Development Program for Space Exploration and Research, Nagoya University Program for Leading Graduate Schools.
April 2013 - March 2016

Paul Sabatier University, Toulouse III
Prépa Agrégation - CAPES : One year course preparing for the competitive recruitment procedures for french teaching qualification.
June 2008

Paul Sabatier University, Toulouse III (in collaboration with ISAE, Sup'Aero)
Master's degree in Astrophysics, specialization in Space Sciences
September 2004 - June 2006

Paul Sabatier University, Toulouse III
Master of Science in Fundamental Physics, specialization in Astrophysics
September 2003 - June 2004

Paul Sabatier University, Toulouse III
Bachelor’s degree in Fundamental Physics, specialization in Astrophysics
September 2001 - June 2003

Other

Mirail University, Toulouse II
First year of Master's in Japanese language, culture and civilization.
September 2011 - June 2012

Mirail University, Toulouse II
Bachelor’s degree in Japanese language, culture and civilization.
September 2008 - June 2011

Work

Nagoya University, Japan

Research Assistant
From April 2016

Research Assistant
April 2013 - March 2014

Acadomia Toulouse/Muret, France

Private tutor May 2008 - September 2012

One-on-One tutoring classes in Mathematics, Physics and Chemistry to high-school students.

Skills

  • IDL Programming
  • Polarization Analysis
  • Chorus Waves
  • VLF antenna installation
  • Ray Tracing

Research Experience

Latest News: New manuscript submitted to JGR Space Physics! (Currently under first review)

Conjugate ground-satellite ELF/VLF emissions generated by strong magnetospheric compression, Claudia Martinez-Calderon*, Kazuo Shiokawa , Kunihiro Keika , Satoshi Kurita , Mitsunori Ozaki , Ian Schofield , Martin Connors , Craig Kletzing , Ondrej Santolik , William Kurth.

Internships

IAP (Institute of Atmospheric Physics)

Prague, Czech Republic
June 2015

Study of a conjugate quasi-periodic emission between a subauroral ground station in Athabasca (Canada) and Van Allen Probes (RBSP-A). Ray tracing methods and analysis of wave propagation.

IAP (Institute of Atmospheric Physics)

Prague, Czech Republic
September - October 2014

Case analysis of Athabasca ground station (Canada) and Van Allen Probes conjunctions, study of propagation delay based on spectra and lagged correlation analysis, measure of the direction of propagation for future ray tracing study.

CESR (Centre d’Etude Spatiales des Rayonnements)

Toulouse, France
Mars - July 2006

Study of the interaction between VLF waves produced by men from the North West Cape radio base in Australia and the high energy electrons of the Ionosphere. Worked using telemetry data from the DEMETER Satellite.

CESR (Centre d’Etude Spatiales des Rayonnements)

Toulouse, France
April - June 2005

Study of numerical and observational data collected by TAROT telescope, starting a catalogue for novae and cataclysmic variables.

Active in

American Geophysics Union

Japanese Geophysics Union

Society of Geomangetism and Earth, Planetary and Space Sciences

VLF/ELF Remote Sensing of Ionospheres and Magnetospheres (currently web master of the VERSIM website)

Interests

VLF/ELF emissions

Plasma Physics

Ionosphere - Magnetosphere coupling

Hobbies

Photography and film

Reading (a lot!)

Sports and outdoor activities

Publications

Martinez-Calderon, C., K. Shiokawa, Y. Miyoshi, K. Keika, M. Ozaki, I. Schofield, M. Connors, C. Kletzing, M. Hanzelka, O. Santolik and W. S. Kurth (2016), ELF/VLF wave propagation at subauroral latitudes: Conjugate observation between the ground and Van Allen Probes A, J. Geophys. Res. Space Physics, 121, 5384–5393, doi:10.1002/2015JA022264.

Martinez-Calderon, C., K. Shiokawa, Y. Miyoshi, M. Ozaki, I. Schofield, and M. Connors (2015), Statistical study of ELF/VLF emissions at subauroral latitudes in Athabasca, Canada, J. Geophys. Res. Space Physics, 120, 8455–8469, doi:10.1002/2015JA021347.

Martinez-Calderon, C., Shiokawa, K., Miyoshi, Y., Ozaki, M., Schofield, I., & Connors, M. (2015). Polarization analysis of VLF/ELF waves observed at subauroral latitudes during the VLF-CHAIN campaign, Earth, Planets and Space, 67(1), 1-13.

Awards

Student Outstanding Presentation Award 2015, Space and Planetary Sciences section, Japan Geoscience Union.
日本地球惑星科学連合2015年大会, 学生優秀発表賞 (宇宙惑星科学セクション)

Presentations

International

Martinez, C., K. Shiokawa, K. Keika, M. Ozaki, I. Schofield, M. Connors, C. Kletzing and O. Santolik, ELF/VLF waves related to magnetospheric compression: conjugated observations from satellite- and subauroral ground-based instruments, AGU Fall meeting, San Francisco, USA, December 14-18, 2015 (poster).

Martinez Calderon, C., K. Shiokawa, Y. Miyoshi, K. Keika, M. Ozaki, I. Schofield, M. Connors, C. Kletzing and O. Santolik, Conjugated observations of ELF/VLF quasi-periodical emissions at the ground station in Athabasca, Canada and Van Allen Probes A., 26th IUGG General Assembly 2015, Prague, Czech Republic, June 22 - July 2, 2015 (oral).

Martinez Calderon, C., K. Shiokawa, Y. Miyoshi, K. Keika, M. Ozaki, I. Schofield and M. Connors, One-year statistical analysis of ELF/VLF emissions at subauroral latitudes at Athabasca, Canada, Japan Geoscience Union Meeting 2015, Makuhari Messe, Chiba, Japan, May 24-28, 2015 (oral).

Martinez, C., K. Shiokawa, Y. Miyoshi, K. Keika, M. Ozaki, I. Schofield, M. Connors, C. Kletzing and O. Santolik, Statistics of VLF/ELF emissions at subauroral latitudes in Athabasca, Canada and their correspondence to the Van Allen Probes observations, AGU Fall meeting, San Francisco, USA, December 15-19, 2014 (poster).

Martinez C., K. Shiokawa, Y. Miyoshi, M. Ozaki, I. Schofield, and M. Connors, Statistical study of VLF/ELF emissions at subauroral latitudes in Athabasca, Canada, ICS-12: The 12th International Conference on Substorms, Ise, Japan, November 10–14, 2014 (poster).

Martinez C., K. Shiokawa, Y. Miyoshi, M. Ozaki, I. Schofield, and M. Connors, Statistical analysis of VLF/ELF emissions at subauroral latitudes in Athabasca, Canada, Geospace revisited: a Cluster/MAARBLE/Van Allen Probes Conference, Rhodes, Greece, September 15–20, 2014 (oral).

Martinez C. C., K. Shiokawa, Y. Miyoshi, M. Ozaki, I. Schofield, and M. Connors, Polarization and occurrence statistics of VLF/ELF chorus waves at sub-auroral latitudes at Athabasca, Canada, Japan Geoscience Union Meeting 2014, Yokohama, Japan, April 28 – May 2, 2014 (oral).

Martinez C. C., K. Shiokawa, Y. Miyoshi, M. Ozaki, I. Schofield, and M. Connors, Polarization analysis of vlf/elf chorus waves observed during the vlf-chain campaign at sub-auroral latitudes, 6th VERSIM workshop 2014, Dunedin, New Zealand, January 20-23, 2014 (poster).

Martinez, C., K. Shiokawa, Y. Miyoshi, M. Ozaki, I. Schofield and M. Connors, Polarization analysis of VLF/ELF chorus waves observed at two ground stations at subauroral latitudes, AGU Fall meeting, San Francisco, December 9-13, 2013 (poster).

Martinez C., K. Shiokawa, Y. Miyoshi, M. Ozaki, Ian Schofield and Martin Connors, Study of VLF/ELF chorus waves observed by two loop antennas at Athabasca and Fort Vermillion at subauroral latitudes, International CAWSES-II Symposium, Nagoya, Japan, November 18-22, 2013 (poster).

Domestic

Martinez, C., K. Shiokawa, K. Keika, M. Ozaki, I. Schofield, M. Connors, C. Kletzing and O. Santolik, Conjugate observations of ELF/VLF waves during sudden magnetospheric compression: satellite- and subauroral ground-based measurements, 平成 27 年度 名古屋大学 宇宙地球環境研究所 共同研究集会, 脈動オーロラ研究集会、名古屋大学、2016年03月01-02日 (oral).

Martinez, C., K. Shiokawa, Y. Miyoshi, K. Keika, M. Ozaki, I. Schofield, M. Connors, C. Kletzing and O. Santolik, Conjugated VLF emission observed between the ground station in Athabasca (Canada) and Van Allen Probe A, 平成 26 年度 名古屋大学 太陽地球環境研究所 共同研究集会, 脈動オーロラ研究集会、名古屋大学、2015年01月19-20日 (oral).

Martinez C., K. Shiokawa, Y. Miyoshi, M. Ozaki, I. Schofield and M. Connors, Polarization analysis of VLF/ELF chorus waves observed at Athabasca at subauroral latitudes, 第134回地球電磁気・地球惑星圏学会講演会、高知大学、2013年11月2-5日 (poster).

Martinez C. C., K. Shiokawa, Y. Miyoshi, M. Ozaki, I. Schofield and M. Connors, Ground based observation of VLF/ELF radio waves for understanding energetic electron acceleration in space surrounding the Earth, Forum for Young Women Researchers, Nagoya University, Japan, August 7-8, 2013 (Poster)

Martinez C. C., K. Shiokawa, Y. Miyoshi, M. Ozaki, I. Schofield, and M. Connors, Polarization analysis of vlf/elf chorus waves observed during the vlf-chain campaign at sub-auroral latitudes,

As a co-author

Shiokawa, K., N. Sunagawa, C. Martinez C., Y. Miyoshi, M. Ozaki, R. Kataoka, and M. Connors, ELF/VLF observations at subauroral latitudes for understanding high-energy electron acceleration/loss processes in the inner magnetosphere, 26th IUGG/IAGA General Assembly, Prague, Czech Republic, June 22-July 2, 2015 (invited).

Shiokawa, K., C.-W. Jun, C. Martinez, N. Sunagawa, Y. Miyoshi, T. Nagatsuma, M. Ishii, M. Ozaki, M. Connors, I. Schofield, P. T. Jayachandran, I. Poddelsky, B. Shevtsov, and D. Baishev, Ground-based optical and ULF/ELF/VLF wave measurements at subauroral latitudes prepared for the ERG project, Geospace revisited: a Cluster/MAARBLE/Van Allen Probes Conference, Rhodes, Greece, September 15-20, 2014 (invited).

Inspiring quotes

  • Consider again that dot. That's here. That's home. That's us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives. The aggregate of our joy and suffering, thousands of confident religions, ideologies, and economic doctrines, every hunter and forager, every hero and coward, every creator and destroyer of civilization, every king and peasant, every young couple in love, every mother and father, hopeful child, inventor and explorer, every teacher of morals, every corrupt politician, every "superstar", every "supreme leader", every saint and sinner in the history of our species lived there - on a mote of dust suspended in a sunbeam.

    Carl Sagan, Pale Blue Dot: A Vision of the Human Future in Space
  • The mind is not a vessel to be filled, but a fire to be kindled.

    Plutarch
  • It's not a silly question if you can't answer it.

    Jostein Gaarder, Sophie's World
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