"Research activities and technological
development for upper atmosphere studies
as a contribution to communications and
satellite navigation”
Miguel A. Cabrera, Rodolfo G. Ezquer and Marta Mosert
Universidad Nacional de Tucumán
Universidad Tecnológica Nacional
CONICET & ICATE
ARGENTINA
MImOSA Project, Feb. 26th, INPE, Sao Jose dos Campos, Bazil
We are here …
Tuc
Tucumán
S.J
L.P
La Plata
San Juan
We are involved on activities as…
Research Projects.
Development of prototypes.
Human Resources Training.
MImOSA Project, Feb. 26th, INPE, Sao Jose dos Campos, Bazil
Objectives of our Activity
Study the ionosphere behavior in quiet and perturbed
conditions.
Contribution to understand ionospheric anomalies and
irregularities.
Give continuity to the growth of our capability for
R & D in radio remote sensing for geophysical studies.
Contribution to human resources training on graduate
and postgraduate levels.
Collaboration with National Groups
and Laboratories
From Argentina:
Laboratorio de Telecomunicaciones (UNT)
Laboratorio de Ionosfera, (FACET - UNT)
CIASUR , (FRT – UTN )
ICATE – CONICET (San Juan )
Facultad de Ciencias Astronómicas (UNLP)
Current Research Projects
"Contribution to the strengthening of infrastructure to
support Argentina ionospheric radio communications and
satellite navigation“.
Grant: PIP 0611 CONICET (2010-2012).
Site: www.utn.edu.ar
Director: Dr. Rodolfo G. Ezquer
"Contribution to the development of an argentine system to
study and predict the behavior of the ionized atmosphere“.
Grant : PID 25/P047 Universidad Tecnológica Nacional (20122015)
Site: www.utn.edu.ar
Director: Dr. Rodolfo G. Ezquer
Current Research Projects (cont…)
“Study and Modeling of Ionospheric Magnitude for
Communication and Navigation Satellite Systems”.
Grant: 26/E408; Universidad Nacional de Tucuman (2008-2013).
Site: www.unt.edu.ar
Director: Miguel A. Cabrera.
“Applied research in the middle and upper atmosphere as a
contribution to communications, and climate change”.
Grant: National Agency for Science and Technology
PICT: 2011-1008 (2012-2015).
Site: www.agencia.gov.ar
Responsible Group: Miguel A. Cabrera, Georgina Elías, Rodolfo G.
Ezquer, Gustavo A. Mansilla and Marta Zossi.
Current Research Projects (cont…)
“Argentine Network for Upper Atmospheric Research”
Grant: CONICET, Res: 2339/2011. (2011-2013).
Director: Dr. Claudio Brunini
Site: www.conicet.gov.ar
Objectives:
Promote collaborations among Argentine researchers,
educators and students, in scientific and technological
research targeted to the studies of the upper atmosphere.
The collaborations will contribute to the formation of
human resources and take full advantage of the existing
and planned measuring capabilities, including deployed
instruments and facilities.
Collaboration with Foreign Institutions
Istituto Nazionale di Geofísica e Vulcanologia (INGV),
Italy.
Tucuman Ionospheric Station
Universidad Tecnológica Nacional, (Since 2007)
GPS (TEC & Scintillation) Station
Universidad Nacional de Tucumán, (Since 2010)
info: http://www.eswua.ingv.it/ingv/i_tuc.php
AIS-INGV Ionosonde
GPS- Scintillation & TEC
Sounder Observations
Scintillation observations
TEC observations
Collaboration with Foreign Institutions (cont…)
Atmospheric Physics Institute (Czech. Republic)
“Magnetosphere - ionosphere-troposphere coupling
and its impact on ionospheric variability”
Czech Director: Dra. Dalia Buresova
Arg. Director: Prof. Marta Mosert
The main aim of this project is to examine the contribution of AGWs
excited by meteorological processes to ionospheric variability and energy
balance of the ionosphere.
The experimental part of the project consists predominantly in collecting,
manual checking and analysis of data obtained from ionosonde and
Doppler network, microbarographs and GPS.
Doppler Stations
Receiving Station
(TUC)
Lat: 26°50'37"S
Long: 65°13'48"O
Transmitting Stations
(ELM)
Lat: 26°56'34"S
Long: 65°42'25"O
Vector from TUC: 49 km WSW
(TRH)
Lat: 27°29'49"S
Long: 64°52'11"O
Vector from TUC: 80 km SE
(GAR)
Lat: 26°33'48"S
Long:64°32'59"O
Vector from TUC: 74 km ENE
Doppler shift Observations
Observation in SF condition
Some developments for prototypes design
Lab. Telecomunicaciones, CIASuR & Lab. Ionosphere.
Lic. María G. Molina (PhD. Est.)
Eng. Jorgelina Lopéz (PhD. Est.)
Eng. Silvina Grupalli (PhD. Est.)
Eng. Luis A. Scidá (PhD. Est.)
Eng. Fernando Miranda Bonomi (PhD. Est.)
Eng. Juan Ise
Eng. José Cangemi
Eng. Marcelo Albornóz
…and 10 advanced Students of Electronic Engineering
Some prototypes of:
•
•
•
•
•
•
•
•
Turnstile Antenna , ISR, (VHF) (finished)
Path antenna array ( UHF) (finished)
Simulator for radar antenna beam (L) (finished)
Encoded carrier generator (HF) (working in V2.0)
Lightning detector (working in V2.0)
Microwave generator (X) (working)
Electromagnetic structures (VHF) (working)
Highly accurate transmitter (HF) (working)
Prototype of encoded synthetic carrier generator (HF band)
Human Resources Training
Postgraduate Courses on Geophysics
Year 2010
“Ionospheric Physics". Dr. Rodolfo G. Ezquer, CONICET (Argentina)
"Elements of nonlinear analysis of time series in geophysical applications.
Dr. Alexander Calzadilla Mendez, IGA (Cuba)
"General principles of Radars“, Dr. Miguel A. Cabrera, UNT (Argentina)
"Development of Ionospheric Radars". Dr. Enrico Zuccheretti, INGV (Italy)
"Magneto-ionic theory and systems for auto scaling of ionograms"
Dr. Michael Pezzopane, INGV (Italy)
"Principles and techniques for measuring ionospheric scintillation"
Dr. Vincenzo Romano, INGV (Italy)
Years 2011 – 2012
“Signal processing using reconfigurable hardware design applied to radars for
geophysical applications”. Dr. James Baskaradas, INGV (Italy)
“Principles and techniques of ionospheric scintillation measurement”.
Dr. Vincenzo Romano, INGV (Italy)
“VHDL for digital design in FPGAs and CPLDs” Msc. J. Scandaliaris,UNT(Arg.)
Latest Published Results
Published Results (cont…)
“Critical Frequency and maximum electron density of F2 region over tours stations in the
North American Sector”, R. G. Ezquer, M. A. Cabrera, J. L. López, M. A. Albornóz, M. Mosert,
P. Marcó and D. Buresova. Journal of Atmospheric and Solar-Terrestrial Physics, V 73; pp 420429, 2011.
“Some Considerations on Different Time Domain Signal Processing in Pulse Compression
Radars”, M. A. Cabrera, E. Zuccheretti, R. G. Ezquer, U. Sciacca, J. M. López, M. G. Molina and
J. A. Baskaradas. Publicado, Annals of Geophysics, V53; N° 5-6; pp 1-11, Ed. INGV, 2010.
“Satellite traces, Range Spread F occurrence, and Gravity Wave Propagation at the Southern
Anomaly Crest”; M. A. Cabrera, M. Pezzopane, E. Zuccheretti, and R. G. Ezquer. Annales
Geophysicae; N°28, pp 1133-1140, 2010.
“IRI 2001/90 TEC predictions over a low latitude station”, L. Scidá, R. G. Ezquer, M. A.
Cabrera y M. Mosert. Publicado en Advances in SpaceResearch, Gran Bretaña, vol 44, pág. 736741, 2009.
“ON THE TIME OF MINIMUN IONIZATION IN THE F2 REGION”, Ezquer, R.G.; Cabrera,
M.A.; Mosert, M.; Radicella and Migoya Orue, Y. Adv. Space Research, pp 659-665, Vol 42, 2008;
Ed. Pergamon, ISSN:0273-1177.
Published Results (cont…)
“THE NEW IONOSPHERIC STATION OF TUCUMAN”: First Results, Pezzopane Michael,
Enrico Zuccheretti, C. Bianchi, C. Scotto, B. Zolesi, M.A. Cabrera and R. Ezquer. Annals of
Geophysics, Vol 50, N 3, pp: 483-493, June 2007.
“SLANT TOTAL ELECTRON CONTENT FOR SIRIO-MORTELLICCIO RAY PATH”, M.
A. Cabrera, R. G. Ezquer and P. Spalla. Annals of Geophysics, Vol 49, N° 4/5, pp 891-896; 2006.
“PREDICTED AND MEASURED SLANT IONOSPHERIC ELECTRON CONTENT”, M.
A. Cabrera, Rodolfo G. Ezquer and S. M. Radicella, Journal of Atmospheric and Solar-Terrestrial
Physics, vol. 67, pág. 1566 – 1572 , 2005.
“DAY-TO-DAY VARIABILITY OF IONOSPHERIC CHARACTERISTICS IN THE
AMERICAN SECTOR”, R. G. Ezquer, M. Mosert, r. Corbella, M. Erazú, S. M. Radicella, M. A.
Cabrera, L de la Zerda. Adv. Space. Res., Vol. 34, 1887-1893, 2004.
“SCINTILLATIONS OBSERVED AT TUCUMAN AS OBSERVED FROM GPS SIGNALS.
FIRST RESULTS”, R. G. Ezquer, P. M. Kintner, M. A. Cabrera and B. Forte, Adv. Space. Res.,
Vol. 31, N°3, pp. 741-747, 2003.
“IRI RELATED STUDIES IN ARGENTINA: TOPSIDE PROFILE AND ELECTRON
CONTENT”, R. G. Ezquer, M. Mosert, S. M. Radicella and M. A. Cabrera. Adv. Space. Res., Vol.
31, N°3, pp. 613-620, 2003.
“COMPARISON BETWEEN MEASURED ELECTRON DENSITY AT 600 Km AND IRI
PREDICTIONS”, R.G. Ezquer, M. A. Cabrera, M. Mosert, L. Araoz, Adv. Space Res., Vol. 29,
N°6, pp. 883-886, 2002.
Tucumán
Thank You !