Profiles

Guifré Molera Calvés

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Guifre Molera Calves

Lecturer & Post-Doc

Room 457 , Physics building

+61 3 6226 5776 (phone)

guifre.moleracalves@utas.edu.au

Dr. Guifré Molera Calvés is currently appointed as a Lecturer at the discipline of Physics and postdoctoral position as a VLBI specialist for the Auscope VLBI array. His interest varies from space science, remote sensing, geodesy, astronomy to planetary and Solar system exploration. His effort has focused on the utilisation of radio telescopes to provide support to deep space missions and to address a number of research areas in our Solar system.

Biography

Guifré joint the University of Tasmania at the beginning of 2019 to work with the radio telescopes of the Auscope array. Guifré had been involved with in the VLBI community for more than a decade now. He did his doctoral studies at the Aalto University in Finland, where most of his work was focused on improving the status and operations of the European VLBI stations. His doctoral studies aimed on a novel technique to use VLBI radio telescopes for tracking planetary spacecraft and exploring phenomena on the Solar system. After one year in a research visit to the University of California, Berkeley, he went to the Netherlands to work at the European VLBI correlator (JIVE) with space related activities with VLBI technology in the near-field. After this post-doc in the Netherlands he returned to Finland to continue at the Metsähovi radio telescope and Aalto University. Between 2016 to 2019, he was the main VLBI expert responsible of the design and construction of the new VLBI radio telescope for geodesy in Metsähovi (Finland).

Career summary

Qualifications

DegreeThesis TitleUniversityCountryDate of Award
PhDRadio spectroscopy and space science with VLBI radio telescopes for Solar System researchAalto UniversityFinland2012
MScDetermination of snow amount by passive microwave observationsTechnical University of CataloniaCatalonia2005

Languages (other than English)

Catalan, Spanish, Finnish, English, Dutch.

Teaching

Teaching responsibility

View more on Dr Guifre Molera Calves in WARP

Expertise

More information in space.phys.utas.edu.au

Collaboration

Guifré is involved in a number of projects observing and tracking space missions from ESA and NASA to study planetary phenomena in our Solar System. The collaboration in space missions extends to ESA Mars Express, BepiColombo, Exomars and Jupiter Icey Moons Explorer, as well as, NASA’s Mars Insight.

Current projects

  • Radio Astron gravitational redshift experiment in collaboration with research institutes from Russia, Canada and Dutch institutes.
  • In-beam observations of planetary spacecraft with VLBI antennas, project lead by the Shanghai observatory.
  • Use of VLBI for studying the properties of the Solar wind and detecting the presence of Coronal Mass Ejections (CME).
  • Novel Technique-VGOS project aimed to quantify and calibrate the errors due to source structure in geodetic VLBI sources in collaboration with Finland and Germany.
  • Development of the dynamic observing program to improve the current geodetic observations model.
  • Installation of the new dedicated tracking station by the University of Tasmania in collaboration with the Australian Space Agency.

Fields of Research

  • Solar physics (510108)
  • Astrodynamics and space situational awareness (510901)
  • Astronomical instrumentation (510102)
  • Planetary science (excl. solar system and planetary geology) (510107)
  • Heliophysics and space weather (510902)
  • Geodesy (370603)
  • Atmospheric dynamics (370105)
  • Satellite communications (400606)
  • Astronomical sciences (510199)
  • Space instrumentation (510906)
  • Approximation theory and asymptotic methods (490101)
  • Data communications (400602)
  • Geophysics (370699)
  • Astroparticle physics and particle cosmology (510701)
  • Solar system planetary science (excl. planetary geology) (510905)

Research Objectives

  • Expanding knowledge in the physical sciences (280120)
  • Intelligence, surveillance and space (140105)
  • Expanding knowledge in the earth sciences (280107)
  • Satellite technologies, networks and services (220106)
  • Air (140101)
  • Building management and services (120199)
  • Information systems, technologies and services (220499)
  • Air quality, atmosphere and weather (180199)
  • Defence (140199)
  • Expanding knowledge in the agricultural, food and veterinary sciences (280101)
  • Emerging defence technologies (140104)

Publications

Total publications

10

Journal Article

(8 outputs)
YearCitationAltmetrics
2022Ma M, Molera Calves G, Cimo G, Zhang P, Ming X, et al., 'VLBI data processing on coronal radio-sounding experiments of Mars Express' (In Press) [Refereed Article]

[eCite] [Details]

Co-authors: Kummamuru P

2021Litvinov DA, Nunes NV, Filetkin AI, Bartel N, Gurvits LI, et al., 'The antenna phase center motion effect in high-accuracy spacecraft tracking experiments', Advances in Space Research, 68, (10) pp. 4274-4291. ISSN 0273-1177 (2021) [Refereed Article]

DOI: 10.1016/j.asr.2021.07.036 [eCite] [Details]

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2021Molera Calves G, Pogrebenko SV, Wagner JF, Cimo G, Gurvits LI, et al., 'High spectral resolution multi-tone Spacecraft Doppler tracking software: algorithms and implementations', Publications of the Astronomical Society of Australia pp. 1-19. ISSN 1323-3580 (2021) [Refereed Article]

DOI: 10.48550/arXiv.2111.05622 [eCite] [Details]

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2019Bocanegra-Bahamon TM, Gurvits LI, Molera Calves G, Cimo G, Duev DA, et al., 'VLBI and Doppler tracking of spacecraft for planetary atmospheric studies', Proceedings of Science pp. 1-6. ISSN 1824-8039 (2019) [Non Refereed Article]

DOI: 10.22323/1.344.0060 [eCite] [Details]

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2019Bocanegra-Bahamon TM, Molera Calves G, Gurvits LI, Cimo G, Dirkx D, et al., 'Venus Express radio occultation observed by PRIDE', Astronomy and Astrophysics, 624 Article A59. ISSN 0004-6361 (2019) [Refereed Article]

DOI: 10.1051/0004-6361/201833160 [eCite] [Details]

Citations: Scopus - 7Web of Science - 4

Co-authors: Lovell JEJ; McCallum JN

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2019Kainulainen J, Salo S, Lahtinen J, Molera Calves G, Seppanen J, et al., 'Airborne wind vector scatterometer for sea surface measurements', IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 12, (7) pp. 2470-2476. ISSN 1939-1404 (2019) [Refereed Article]

DOI: 10.1109/JSTARS.2019.2900410 [eCite] [Details]

Citations: Scopus - 3Web of Science - 3

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2019Molera Calves G, 'Progress update of the VGOS radio telescope at Metsahovi Geodetic Research Station', Proceedings of Science pp. 1-7. ISSN 1824-8039 (2019) [Non Refereed Article]

[eCite] [Details]

2019Molera Calves G, Kallio E, Cimo G, Bocanegra-Bahamon T, 'Study of ICME by spacecraft radio signals', Proceedings of Science pp. 1-5. ISSN 1824-8039 (2019) [Non Refereed Article]

[eCite] [Details]

Conference Publication

(1 outputs)
YearCitationAltmetrics
2019Molera Calves G, 'Spacecraft tracking capabilities by the UTas radio telescope network', 19th Australian Space Research Conference Programme, 30 September - 02 October 2019, Adelaide, pp. 1-10. (2019) [Non Refereed Conference Paper]

[eCite] [Details]

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Other Public Output

(1 outputs)
YearCitationAltmetrics
2020Venturi T, Paragi Z, Lindqvist M, Bartkiewicz A, Beswick R, et al., 'VLBI20-30: a scientific roadmap for the next decade - The future of the European VLBI Network', European VLBI Network, pp. 1-191. (2020) [Government or Industry Research]

DOI: 10.1109/JTEHM.2021.3077760 [eCite] [Details]

Citations: Scopus - 5

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Grants & Funding

Funding Summary

Number of grants

6

Total funding

$1,557,038

Projects

Deep space weather (2022 - 2024)$45,000
Description
Accurate space weather forecasting in real-time is of critical importance to commercial satellite operators and space agencies. Satellites are critical infrastructure for the underpinning of modern economic activities such as communications, accurate position-finding, and weather forecasting. Assets in space can be damaged or destroyed by space weather - the harsh electromagnetic and cosmic ray conditions produced by Solar activity (coronal mass ejections, CME). The candidate will use the University of Tasmania's unique space physics infrastructure to study the magnetic fields, propagation speeds, and particle energy spectra of CMEs in order to develop a framework under which satellite operators can be warned of space weather events before the CME damage is done. The candidate will work in close collaboration with the three supervisors. They combine expertise in observational data, instrumentation development, analysis of large data sets, theory, and simulation of large-scale environments. This project will utilise the tracking of spacecraft with UTAS radio telescopes to provide insights into the fundamental physics that governs space weather. The student will coordinate observations with the antennas together collaborating with space missions from NASA and ESA. The student will take the lead in the communication with these space missions.
Funding
CSIRO-Commonwealth Scientific & Industrial Research Organisation ($45,000)
Scheme
Scholarship-Top-Up
Administered By
University of Tasmania
Research Team
Molera Calves G
Period
2022 - 2024
Signal power calibration for GNSS satellites (2021)$38,900
Description
measuring the transmitted power from various satellites of the Global Navigation Satellite Systems (GNSS) using UTAS radio telescopes. GNSS systems such as the GPS, Galileo or Beidou use different generations of satellites and the transmitted power is variable and not exactly known, causing unpredictable orbit errors. This project aims to measure and calibrate this effect, and hence assist to improve the accuracy of the GNSS systems. The project is a neat combination between original and exciting basic research and actual application in measuring and providing real values for each satellite. The work perfectly fits the research profiles of the included staff. It is basically one application that I was hoping for when writing my DECRA.
Funding
FrontierSI ($38,900)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
McCallum L; Molera Calves G; McCarthy TP
Year
2021
UTAS JIVE collaboration agreement (2021)$49,012
Description
The Joint work by the parties (UTAS and JIVE) on Planetary Radio Interferometer and Doppler Experiment (PRIDE) of the JUICE mission requires intensive observing and data processing activities during the pre-launch year. Due to COVID-19 conditions the recently UTAS graduated student will start her post-doc at UTAS conducting mission preparations until the borders open.
Funding
The Joint Institute For Very Long Baseline Interferometry in Europe ($49,012)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
Molera Calves G
Year
2021
Installation of a ground antenna for Hermes-B satellites (2021)$223,549
Description
Installation of a ground-station in Katherine (Northern Territory) to support activities for High energy astrophysics CubeSat. The agreement involves the INAF - Osservatorio Astronomico di Trieste, University of Melbourne, and Masaryk University
Funding
Astronomical Observatory of Trieste ($223,549)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
Molera Calves G; Ellingsen SP
Year
2021
SpaceIQ system installation at Ceduna site (2020)$577
Description
Installation of the system SpaceIQ develop by Cyberops to monitor the space situational awareness. The project is partially funded by ASA and Defense department.
Funding
Department of Defence ($577)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
Molera Calves G; Ellingsen SP
Year
2020
Space Infrastructure Fund Tracking Facilities Upgrade, UTAS (2020 - 2021)$1,200,000
Description
The University of Tasmania will receive $1.2 million ($600k in 2019/20 and $600k in 2020/21 financial years) from the Australian Space Agency (ASA) Space Infrastructure Fund (SIF). We expect this to be categories as HERDC CAT-2 income. The funding will be support a number of developments, the most significant being construction of a new ground station for satellite tracking at the University of Tasmania's Bisdee Tier optical observatory, approximately 70km north of Hobart. The funds will also enable an upgrade of tracking capability at the University's other radio observatories and enable the creation of a bi-static radar capacity that can be used for space situational awareness activities.
Funding
Department of Industry, Innovation and Science ($1,200,000)
Scheme
Space Infrastructure Fund
Administered By
University of Tasmania
Research Team
Ellingsen SP; Molera Calves G
Period
2020 - 2021

Research Supervision

I am supervising two HDR candidates who focus on enhancing the spacecraft tracking activities at the University of Tasmania and improving the understanding of the Solar wind.

Current

6

Current

DegreeTitleCommenced
PhDImproving the Efficiency of VLBI Observations Through Dynamic Observing2019
PhDEnhancing Space Activities and Solar System Exploration with VLBI Spacecraft Tracking2019
PhDThe Next Generation AuScope VLBI Network from Centimetre to Millimetre Precision2020
PhDSpace Tie Satellites for Millimetre Precision Geodesy2021
PhDCommensal Space Domain Awareness with Large Parabolic Antennas2021
PhDDeep-Space Weather: Improving protection of critical space infrastructure2022