Ing. Jaroslav Chum, Ph.D.
Department: | Department of Ionosphere and Aeronomy |
Position: | Deputy head of the Department |
Position: | Senior Research Scientist |
E-mail: | |
Phone: | +420 267 103 056 |
Room: | G317 |
Education:
- Dipl. Ing. in Technical Cybernetics at Faculty of Electrical Engineering of the Czech Technical University, Prague in 1989.
- Ph.D. in Plasma Physics at Czech Technical University - Faculty of Electrical Engineering, Department of Physics, Prague in 2004.
Employment and academic experience:
- Research Engineer at the Institute of Geophysics from 1991 to 1994
- Research Engineer at the Institute of Atmospheric Physics (IAP) from 1994 to 2000
- Research Scientist at IAP from 2001 to 2013
- Senior Research Scientist at IAP from 2013 to present.
Professional interest:
In the beginning of his carrier, J. Chum was involved in designing electronic subsystems for Czech satellites Magion-4 and Magion-5, digital sun sensor for several satellites and ground based measurements carried out at IAP, e.g., Continuous Doppler sounding of the ionosphere.
Since 2001, J. Chum has been involved in Space plasma physics investigations with a focus on wave propagation in the Earth's magnetosphere and ionosphere. The scientific activity dominates in recent years. Initially, J. Chum investigated propagation and properties of whistler waves and chorus emissions in the ionosphere and magnetosphere. Recently, he has mainly focused on propagation of internal gravity waves and infrasound in the upper atmosphere and ionosphere using the multi-point Continuous Doppler sounding, and on coupling of the ionosphere and upper atmosphere from below and from above. He is also interested in atmospheric electricity and cosmic rays.
Other info:
- Member of the Board at the IAP, 2012-present
- Member of the council for Science popularization at the Academy of Sciences of the Czech Republic
- Reviewer for JGR-Space physics, J. Atmos. Sol. Terr. Phys., Advances in Space Res., Surveys in Geophysics, Geophysical Research Letters, Annales Geophysicae, Remote sensing, Radio Science, sensors, Earth and Space Science and for several Ph.D. and Master theses.
- Associated editor of Frontiers in Astronomy and Space Sciences
J. Chum is author or co-author of about 80 articles in international refereed journals.
Projects:
- SAV-23-02, Bilaterální spolupráce, Institute of Experimental Physics, SAS SAV-23-02 , Study of dynamics at the interface between space and the Earth’s atmosphere, 2023-2024, investigator (IAP): Chum Jaroslav
- CONICET-22-02 - AV ČR - Argentina project , Multi-instrument investigation of ionospheric perturbations, 2022-2024, investigator (IAP): Chum Jaroslav
- SAV-21-01, Bilaterální spolupráce, Institute of Experimental Physics, SAS , Atmospheric electric field and dynamics of charged particles and secondary cosmic rays in high mountains, 2021-2022, investigator (IAP): Chum Jaroslav
- ESA 4000126708/19/NL/IA , ILGEW - Investigating Lightning Generated ELF Whistlers to Improve Ionospheric Models, 2019-2020, investigator (IAP): Truhlík Vladimír, team: Obrazová, D.; Chum, J.
- GA ČR GA18-01969S , Atmospheric waves: dynamics and vertical coupling, 2018-2021, investigator (IAP): Chum Jaroslav
- SAV-18-04, Bilaterální spolupráce, Institute of Experimental Physics, SAS , Atmospheric electricity and secondary cosmic radiation, 2018-2021, investigator (IAP): Chum Jaroslav
- GC15-07281J , Phenomena coupling the neutral and ionized atmosphere, 2015–2017, investigator (IAP): Chum Jaroslav
- GA ČR. GA205/09/1253 , Elektromagnetické jevy spojující troposféru, mezosféru, ionosféru a magnetosféru, 2009-2013, investigator (IAP): Chum Jaroslav
Publications:
- Liu, J. Y., Rajesh, P.K., Liao, Y.-A., Chum, J., Kan, K.-W., Lee, I-T., 2024: Airglow observed by a full-band imager together with multi-instruments in Taiwan during nighttime of 1 November 2021, Advances in Space Research, 73, 1, 663-671
- Karapetyan, T., Chilingarian, A., Hovsepyan, G., Martoyan, H., Sargsyan, B., Langer, R., Chum, J., (...), Ploc, O., Šlegl, J., Kákona, M., Ambrožová, I., 2024: The Forbush decrease observed by the SEVAN particle detector network in the 25th solar activity cycle, Journal of Atmospheric and Solar-Terrestrial Physics, 262, 106305
- Chum, J., Langer, R., Kolmašová, I., Lhotka, O., Rusz, J., Strhárský, I., 2024: Solar cycle signatures in lightning activity, Atmospheric Chemistry and Physics, 24, 16, 9119-9130
- Mošna, Z., Barta, V., Berényi, K. A., Mielich, J., Verhulst, T., Kouba, D., Urbář, J., Chum, J., Koucká Knížová, P., Marew, H., Podolská, K., Bojilova, R., 2024: The March and April 2023 ionospheric storms over Europe, Frontiers in Astronomy and Space Sciences, 22, 1462160
- Chum, J., Šindelářová, T., Koucká Knížová, P., Podolská, K., Rusz, J., Baše, J., Nakata, H., (...), Laštovička, J., Obrazová, D. Kouba, D., Urbář, J., Truhlík, V., 2023: Atmospheric and ionospheric waves induced by the Hunga eruption on 15 January 2022. Doppler sounding and infrasound, Geophysical Journal International, 233, 2, 1429-1443
- Szárnya, Cs., Chum, J., Podolská, K., Kouba, D., Koucká Knížová, P., Mošna, Z., Barta, V., 2023: Multi-instrumental detection of a fireball during Leonids of 2019, Frontiers in Astronomy and Space Sciences, 10, 1197832
- Koucká Knížová, P., Potužníková, K., Podolská, K., Hannawald, P., Mošna, Z., Kouba, D., Chum, J., Wüst, S., Bittner, M., Kerum, J., 2023: Multi-instrumental observation of mesoscale tropospheric systems in July 2021 with a potential impact on ionospheric variability in midlatitudes, Frontiers in Astronomy and Space Sciences, 10, 1197157
- Sejima, H., Hosokawa, K., Nakata, H., Chum, J., Lin, Ch.-H., Lin, J.-T., 2023: Simultaneous observations of equatorial plasma bubbles with an all-sky airglow imager and a HF Doppler sounding system in Taiwan, Earth, Planets and Space, 75, 156
- Haralambous, H., Guerra, M., Chum, J., Verhulst, T.G.W., Barta, V., Altadill, D., Cesaroni, C., Galkin, I., Kiszely, M., Mielich, J., Kouba, D., Burešová, D., Segarra, A., Spogli, L., Rusz, J., Zedník, J., 2023: Multi-Instrument Observations of Various Ionospheric Disturbances Caused by the 6 February 2023 Turkey Earthquake, Journal of Geophysical Research-Space Physics, 128, 12, e2023JA031691
- Kikuchi, T., Araki, T., Hashimoto, K.K., (...), Chum, Jaroslav, Hosokawa, K., Tomizawa, I., Tanaka, Y., Kadokura, A., 2022: Instantaneous Achievement of the Hall and Pedersen–Cowling Current Circuits in Northern and Southern Hemispheres During the Geomagnetic Sudden Commencement on 12 May 2021, Frontiers in Astronomy and Space Sciences, 9, 879314
- Šlegl, J., Langer, R., Brunclík, T., Mašek, P., Strhárský, I., Ambrožová, I., Chum, Jaroslav, Ploc, O., 2022: Spectrometry of high-energy photons on high mountain observaroty Lomnický štít during thunderstorms, Radiation Protesction Dosimetry, 198, 9-11, 623-627