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People > Research Faculty > Germán Martínez

Germán Martínez

Portrait of Germán Martínez

Research Scientist

Climate and Space Sciences and Engineering

1531A Space research Building

Climate & Space Research Building University of Michigan 2455 Hayward Street Ann Arbor, MI 48109-2143

gemartin@umich.edu

(734) 358-4324

Related Links
  • CV
Education Research Interests Responsibilities Teaching Awards Publications

Education:

  • Ph.D. (SUMMA CUM LAUDE), Universidad Complutense de Madrid, Spain, 2010, Thesis: “Characterization of the Martian Planetary Boundary Layer”, Advisors: Luis Vázquez and Francisco Valero
  • Certificado de Aptitud Pedagógica (~M.Ed.), Universidad Complutense de Madrid, Spain, 2007
  • M.S., Atmospheric Sciences, Universidad Complutense de Madrid, Spain, 2007
  • B.S., Physics, Universidad Complutense de Madrid, Spain, 2005

Research Interests: ^top

  • Planetary Science
  • Habitability Potential of Mars and the Icy Worlds
  • Water Resources and Radiative Environment on Mars
  • Human Exploration of Mars
  • Instrument Development for Solar System Exploration
  • Atmospheric Thermodynamics, Atmospheric Radiation and Surface-Atmosphere Interactions

Responsibilities: ^top

Mission Participation

  • NASA Mars 2020, Co-I of MEDA instrument, 2014-present
  • NASA Mars Science Laboratory, team member of REMS instrument, 2013-present

Teaching: ^top

Courses

  • CLASP 749: Climate and Space Sciences Seminar, Fall 2016 and Winter 2017
  • AOSS 350: Atmospheric Thermodynamics, Winter 2013 and 2014
  • Climate Risks and Environmental Impacts, M.Sc. course offered by Universidad Complutense de Madrid and the Spanish Meteorology Agency, 2010

Mentoring

  • PhD Advisor, Erik Fischer, University of Michigan, now Research Fellow at University of Michigan, 2018
  • PhD Advisor, Álvaro de Vicente Retortillo, Universidad Complutense de Madrid, Spain, now Research Fellow at University of Michigan, 2017
  • Undergraduate mentor, Cauê Borlina, , University of Michigan, now PhD student at MIT, 2013-2016

Awards: ^top

Awards

  • Spain’s prime radio network Cadena SER “Calle Radio Murcia” Award, 2018
  • NASA’s Mars Science Laboratory extended mission, Group Achievement Award, 2017
  • NASA’s Mars Science Laboratory mission, Group Achievement Award, 2015
  • UCM-EEA Abel Predoc Grant, European Economic Area, 2010
  • Universidad Complutense de Madrid “Exención de tasas” Award, 2006. Fellowship covering full tuition for the PhD program. Awarded to 5% of applicants.
  • Graduated from high school with an award as best student, Murcia, Spain, class 1995

Publications: ^top

31. Martínez, G. M. et al., Surface energy budget at the MSL site during the 2018/a, global dust storm, J. Geophys. Res.: Planets (in preparation), 2019.

30. Vicente-Retortillo, A., G. M. Martínez, et al., Radiative environment and dust deposition and lifting at Gale Crater during the 2018 Global Dust Storm, Geophys. Res. Lett. (special issue; in preparation), 2019.

29. Vicente-Retortillo, A., G. M. Martínez, et al., Generation of UV Radiation Data Products at Gale Crater by correcting REMS UV Data from Dust Deposition and Sensor’s Angular Response, J. Geophys. Res.: Planets (in preparation), 2019.

28. Fischer, E., G. M. Martínez, et al., New results of relative humidity at Mars’ Phoenix landing site, J. Geophys. Res.: Planets (in preparation), 2019.

27. Moores, J. E., R. Gough, G. M. Martínez, P.-Y. Meslin, C. Smith, S. Atreya, P. Mahaffy, C. Newman, C. Webster, The methane seasonal cycle at Gale Crater, Mars suggests adsorption-mediated microseepage, Nature Geosciences (submitted), 2019.

26. Renno, N., R. Backhus, C. Cooper, J. M. Flatico, E. Fischer, L. C. Greer, M. J. Krasowski, T. Kremic, G. M. Martínez, N. F. Prokop and A. Vicente-Retortillo, A Simple Instrument Suite for Characterizing Habitability and Weathering: The Modern Aqueous Habitat Reconnaissance Suite (MAHRS), Astrobiology (in press), 2019.

25. Guzewich, S. D., M. Lemmon, C. L. Smith, G. M. Martínez, A. Vicente-Retortillo, C. E. Newman, M. Baker, C. Campbell, B. Cooper, J. Gómez-Elvira, A.-M. Harri, D. Hassler, F. J. Martín-Torres, T. McConnochie, J. E. Moores, H. Kahanpää, A. Khayat, M. I. Richardson, M. D. Smith, R. Sullivan, M. de la Torre-Juarez, A. R. Vasavada, D. Viúdez-Moreiras, C. Zeitlin, M.-P. Zorzano, Mars Science Laboratory Observations of the 2018/Mars Year 34 Global Dust Storm, Geophys. Res. Lett., 46, https://doi.org/10.1029/2018GL080839, 2018.

24. Vicente-Retortillo, A., G. M. Martínez, N. Renno, C. E. Newman I. Ordóñez-Etxeberría, M. T. Lemmon, M. I. Richardson, R. Hueso and A. Sánchez-Lavega, Seasonal Deposition and Lifting of Dust on Mars as Observed by the Curiosity Rover, Scientific Reports, 8(1), 17576, 2018.

23. Gough, R. V., K. M. Primm, E. G. Rivera-Valentin, G. M. Martínez, M. A. Tolbert, Solid-solid hydration and dehydration of Mars-relevant chlorine salts: Implications for Gale Crater and RSL Locations, Icarus, 321, 1-13, 2018.

22. Primm, K. M., R. V. Gough, J. Wong, E. G. Rivera-Valentin, G. M. Martínez, J. V. Hogancamp, P. D. Archer, D. W. Ming, M. A. Tolbert, The Effect of Mars-relevant soil analogs on the Water Uptake of Magnesium Perchlorate and Implications for the Near- Surface of Mars, J. Geophys. Res.: Planets, 123(8), 2076-2088, 2018.

21. Webster, C. R., P. R. Mahaffy, S. K. Atreya, J. Moores, G. J. Flesch, C. Malespin, C. McKay, G. M. Martínez, C. L Smith, F. J. Martin-Torres, J. Gomez-Elvira, M.-P. Zorzano, M. H. Wong, M. G. Trainer, J. L. Eigenbrode, D. P. Glavin, A. Steele, D. Archer Jr., B. Sutter, P. J. Coll, C. Freissinet, P.-Y. Meslin, A. Pavlov, D. Keymeulen, L. E. Christensen, R. V. Gough, S. P. Schwenzer, R. Navarro-Gonzalez, J. Pla-García, S. C. R. Rafkin, A. Vicente-Retortillo, H. Kahanpää, D. Viudez-Moreiras, M. D. Smith, A.-M. Harri, M. Genzer, D. Hassler, M. Lemmon, J. Crisp, S. P. Sander, R. W. Zurek and A. Vasavada, Background levels of methane in Mars’ atmosphere show strong seasonal variations, Science 360(6393), 1093-1096, 2018.

20. Valentin-Rivera, E. G., R. Gough, V. Chevrier, K. M. Primm, G. M. Martínez, M. Tolbert, Constraining the potential liquid water environment at Gale crater, Mars, J. Geophys. Res.: Planets, 123, 1156-1167, 2018.

19. Vaniman, D. T., G. M. Martínez, E. B. Rampe, T. F. Bristow, D. F. Blake, A. H. Yen, D. W. Ming, W. Rapin, P.-Y. Meslin, J. M. Morookian, R. T. Downs, S. J. Chipera, R. V. Morris, S. M. Morrison, A. H. Treiman, C. N. Achilles, J. P. Grotzinger, R. M. Hazen, J. A. Crisp, Gypsum, bassanite, and anhydrite at Gale crater, Mars, American Mineralogist, 103(7), 1011-1020, 2018.

18. Pérez-Izquierdo, J., E. Sebastián, G. M. Martínez, A. Bravo, M. Ramos, J. A. Rodríguez-Manfredi, The Thermal Infrared Sensor (TIRS) of the Mars Environmental Dynamics Analyzer (MEDA) Instrument onboard Mars 2020, A general description and performance analysis, Measurement, 122, 432-442, 2018.

17. McConnochie, T. H., M. D. Smith, M. J. Wolff, S. Bender, M. Lemmon, R. C. Wiens, S. Maurice, O. Gasnault, A.-M. Harri, M. Genzer, O. Kemppinen, G. M. Martínez, J. Lasue, L. DeFlores, D. Blaney, D. R. Johnson, J. F. Bell III, Retrieval of Water Vapor Column Abundance and Aerosol Properties from ChemCam Passive Sky Spectroscopy, Icarus, 307, 294-326, 2018.

16. Vicente-Retortillo, A., G. M. Martínez, N. O. Renno, M. Lemmon, and M. de la Torre-Juárez, Determination of dust aerosol particle size at Gale Crater using REMS UVS and Mastcam measurements, Geophys. Res. Lett., 44(8), 3502-3508, 2017.

15. Martínez, G. M., C. N. Newman. A. Vicente-Retortillo, E. Fischer, N. Renno, M. Richardson, A. Fairén, M. Genzer, S. D. Guzewich, R. M. Haberle, A.-M. Harri, O. Kemppinen, M. Lemmon, M. D. Smith, M. de la Torre-Juárez and A. Vasavada, The Modern Near-surface Martian Climate: A Review from In-situ Meteorological data from Viking to Curiosity, Space Sci. Rev., 1-44, 2017.

14. Vicente-Retortillo, A., M. Lemmon, G. M. Martínez, F. Valero, L. Vázquez and M. L. Martín, Seasonal and interannual variability of solar radiation at Spirit, Opportunity and Curiosity landing sites, Física de la Tierra, 28, 111-127, 2016.

13. Martínez, G. M., M. de la Torre-Juárez, A. Vicente-Retortillo, O. Kemppinen, N. Renno and M. Lemmon, An overview of the environmental conditions at Gale Crater from MSL/REMS measurements, Física de la Tierra (Invited), 28, 163-179, 2016.

12. Fischer, E., G. M. Martínez and N. O. Renno, Formation and Persistence of brine on Mars: Experimental simulations throughout the diurnal cycle at the Phoenix landing site, Astrobiology, 16(12), 937-948, 2016.

11. Rapin, W., P.-Y. Meslin, S. Maurice, D. Vaniman, M. Nachon, N. Mangold, S. Schröder, O. Gasnault, O. Forni, R. C. Wiens, G. M. Martínez, A. Cousin, V. Sautter, J. Lasue and D. Archer, Hydration state of calcium sulfates in Gale Crater: identification of bassanite veins, Earth Planet. Sci. Lett., 452, 197-205, 2016.

10. Martínez, G. M., E. Fischer, N. O. Rennó, E. Sebastián, O. Kemppinen, N. Bridges, C. S. Borlina, P.-Y. Meslin, M. Genzer, A.-M. Harri, A. Vicente-Retortillo, M. Ramos, M. de la Torre-Juárez, F. Gómez, J. Gómez-Elvira and the REMS Team, Likely frost events at Gale crater: Analysis from MSL/REMS measurements, Icarus, 280, 93-102. 2016.

9. Vicente-Retortillo, A., F. Valero, L. Vázquez and G. M. Martínez, A model to calculate solar radiation fluxes on the Martian surface, Journal of Space Weather and Space Climate, 5, A33, 2015.

8. Martínez, G. M., N. O. Renno, E. Fischer, C. S. Borlina, B. Hallet, M. de la Torre-Juárez, A. Vasavada, M. Ramos, V. Hamilton, J. Gómez-Elvira, R. M. Haberle and the REMS Team, Surface Energy Budget and Thermal Inertia at Gale Crater: Calculations from Ground-Based Measurements, J. Geophys. Res.: Planets 119.8: 1822-1838, 2014.

7. Fischer, E., G. M. Martínez, H. Elliott and N. O. Renno, Experimental evidence for the formation of liquid saline water on Mars, Geophys. Res. Lett., 41, 2014.

6. Martínez, G. M., F. Valero, L. Vázquez and H. Elliott, The Martian Planetary Boundary Layer: Turbulent Kinetic Energy and Fundamental Similarity Scales, Solar System Research (Invited), 47(6), 446-453, 2013.

5. Martínez, G. M. and N. O. Renno, Water and Brines on Mars: Current Evidence and Implications for MSL, Space Sci. Rev., 75(1-4), 29-51, 2013.

4. Martínez, G. M., N. O. Renno and H. Elliott, The Evolution of the Albedo of Dark Spots Observed on Mars Polar Region, Icarus, 221, 816-830, 2012.

3. Martínez, G. M., F. Valero and L. Vázquez, TKE Budget in the Convective Martian PBL, Q. J. R. Meteorol. Soc., 137(661), 2194-2208, 2011.

2. Martínez, G. M., F. Valero and L. Vázquez, Characterization of the Martian Convective Boundary Layer, J. Atmos. Sci., 66, Issue 7, 2044–2058, 2009.

1. Martínez, G. M., F. Valero and L. Vázquez, Characterization of the Martian Surface Layer, J. Atmos. Sci., 66, Issue 1, 187–198, 2009.

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Research Area
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Climate and Space Sciences and Engineering

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