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Your search keyword '"J. Pla-García"' showing total 7 results
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7 results on '"J. Pla-García"'

1. Near Surface Atmospheric Temperatures at Jezero From Mars 2020 MEDA Measurements

Author

A. Munguira, R. Hueso, A. Sánchez‐Lavega, M. de la Torre‐Juarez, G. M. Martínez, C. E. Newman, E. Sebastian, A. Lepinette, A. Vicente‐Retortillo, B. Chide, M. T. Lemmon, T. Bertrand, R. D. Lorenz, D. Banfield, J. Gómez‐Elvira, J. Martín‐Soler, S. Navarro, J. Pla‐García, J. A. Rodríguez‐Manfredi, J. Romeral, M. D. Smith, and J. Torres

Published
2023
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2. Winds at the Mars 2020 Landing Site: 1. Near-Surface Wind Patterns at Jezero Crater

Author

D. Viúdez-Moreiras, M. Lemmon, C. E. Newman, S. Guzewich, M. Mischna, J. Gómez-Elvira, K. Herkenhoff, A. Sánchez-Lavega, M. De La Torre, J. A. Rodríguez-Manfredi, R. D. Lorenz, J. Pla-García, R. Hueso, M. Richardson, L. Tamppari, M. Smith, V. Apéstigue, D. Toledo, and J. Bell

Subjects
Lunar and Planetary Science and Exploration
Abstract

This is the first part of a two-part paper. NASA's Mars 2020 Perseverance rover measured winds on the Jezero crater floor close to the delta of an ancient river. A mostly repeatable diurnal cycle was observed and presented two regimes: (a) a convective regime, from dawn to sunset, with average easterly to southeasterly winds, during which maximum wind speeds were measured, and (b) a nighttime regime with westerly-northwesterly winds followed by a relatively calm period with highly variable wind directions as a function of sol and time of night. The timing and magnitude of the observed regimes are consistent with primary control by regional and local slope flows. Data suggest that the surface circulation at Jezero region in northern spring and summer is highly unaffected by large-scale circulation except during particular periods in the diurnal cycle or generally during dust storms, which is supported by MarsWRF model simulations. Consequently, the observed seasonal variability was weak. However, sol-to-sol and seasonal variability were measured, most of it during certain nighttime periods. Traveling waves consistent with baroclinic instability were clearly observed in surface winds at L_s ∼ 75°. The early MY36/2022A regional dust storm at L_s ∼ 153° disturbed the wind patterns with changes suggesting enhanced tidal flows. After sunset, the dust storm also produced detectable gravity wave activity, increasing the mixing in the nighttime planetary boundary layer during storm conditions. Inferred wind directions from dust devil movies strongly suggest that prevailing winds continued to be slope-driven during the late summer, fall and early winter seasons.

Published
2022
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3. Mars 2020 Perseverance Rover Studies of the Martian Atmosphere Over Jezero From Pressure Measurements

Author

A. Sánchez-Lavega, T. Del Rio-Gaztelurrutia, R. Hueso, M. De La Torre Juárez, G. M. Martínez, A.-M. Harri, M. Genzer, M. Hieta, J. Polkko, J. A. Rodríguez-Manfredi, M. T. Lemmon, J. Pla-García, D. Toledo, A. Vicente-Retortillo, D. Viúdez-Moreiras, A. Munguira, L. K. Tamppari, C. Newman, J. Gómez-Elvira, S. Guzewich, T. Bertrand, V. Apéstigue, I. Arruego, M. Wolff, D. Banfield, I. Jaakonaho, and T. Mäkinen

Subjects
Space Sciences (General), Instrumentation and Photography
Abstract

The pressure sensors on Mars rover Perseverance measure the pressure field in the Jezero crater on regular hourly basis starting in sol 15 after landing. The present study extends up to sol 460 encompassing the range of solar longitudes from Ls ∼ 13°–241° (Martian Year (MY) 36). The data show the changing daily pressure cycle, the sol-to-sol seasonal evolution of the mean pressure field driven by the CO2 sublimation and deposition cycle at the poles, the characterization of up to six components of the atmospheric tides and their relationship to dust content in the atmosphere. They also show the presence of wave disturbances with periods 2–5 sols, exploring their baroclinic nature, short period oscillations (mainly at night-time) in the range 8–24 min that we interpret as internal gravity waves, transient pressure drops with duration ∼1–150 s produced by vortices, and rapid turbulent fluctuations. We also analyze the effects on pressure measurements produced by a regional dust storm over Jezero at Ls ∼ 155°.

Published
2022
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4. Vortex‐Dominated Aeolian Activity at InSight's Landing Site, Part 1: Multi‐Instrument Observations, Analysis, and Implications

Author

C. Charalambous, J. B. McClean, M. Baker, W. T. Pike, M. Golombek, M. Lemmon, V. Ansan, C. Perrin, A. Spiga, R. D. Lorenz, M. E. Banks, N. Murdoch, S. Rodriguez, C. M. Weitz, J. A. Grant, N. H. Warner, J. Garvin, I. J. Daubar, E. Hauber, A. E. Stott, C. L. Johnson, A. Mittelholz, T. Warren, S. Navarro, L. M. Sotomayor, J. Maki, A. Lucas, D. Banfield, C. Newman, D. Viúdez‐Moreiras, J. Pla‐García, P. Lognonné, and W. B. Banerdt

Published
2021
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5. The Mars Environmental Dynamics Analyzer, MEDA. A Suite of Environmental Sensors for the Mars 2020 Mission

Author

J. A. Rodriguez-Manfredi, M. de la Torre Juárez, A. Alonso, V. Apéstigue, I. Arruego, T. Atienza, D. Banfield, J. Boland, M. A. Carrera, L. Castañer, J. Ceballos, H. Chen-Chen, A. Cobos, P. G. Conrad, E. Cordoba, T. del Río-Gaztelurrutia, A. de Vicente-Retortillo, M. Domínguez-Pumar, S. Espejo, A. G. Fairen, A. Fernández-Palma, R. Ferrándiz, F. Ferri, E. Fischer, A. García-Manchado, M. García-Villadangos, M. Genzer, S. Giménez, J. Gómez-Elvira, F. Gómez, S. D. Guzewich, A.-M. Harri, C. D. Hernández, M. Hieta, R. Hueso, I. Jaakonaho, J. J. Jiménez, V. Jiménez, A. Larman, R. Leiter, A. Lepinette, M. T. Lemmon, G. López, S. N. Madsen, T. Mäkinen, M. Marín, J. Martín-Soler, G. Martínez, A. Molina, L. Mora-Sotomayor, J. F. Moreno-Álvarez, S. Navarro, C. E. Newman, C. Ortega, M. C. Parrondo, V. Peinado, A. Peña, I. Pérez-Grande, S. Pérez-Hoyos, J. Pla-García, J. Polkko, M. Postigo, O. Prieto-Ballesteros, S. C. R. Rafkin, M. Ramos, M. I. Richardson, J. Romeral, C. Romero, K. D. Runyon, A. Saiz-Lopez, A. Sánchez-Lavega, I. Sard, J. T. Schofield, E. Sebastian, M. D. Smith, R. J. Sullivan, L. K. Tamppari, A. D. Thompson, D. Toledo, F. Torrero, J. Torres, R. Urquí, T. Velasco, D. Viúdez-Moreiras, and S. Zurita

Subjects
Space Sciences (General)
Abstract

NASA’s Mars 2020 (M2020) rover mission includes a suite of sensors to monitor current environmental conditions near the surface of Mars and to constrain bulk aerosol properties from changes in atmospheric radiation at the surface. The Mars Environmental Dynamics Analyzer (MEDA) consists of a set of meteorological sensors including wind sensor, a barometer, a relative humidity sensor, a set of 5 thermocouples to measure atmospheric temperature at ∼1.5 m and ∼0.5 m above the surface, a set of thermopiles to characterize the thermal IR brightness temperatures of the surface and the lower atmosphere. MEDA adds a radiation and dust sensor to monitor the optical atmospheric properties that can be used to infer bulk aerosol physical properties such as particle size distribution, non-sphericity, and concentration. The MEDA package and its scientific purpose are described in this document as well as how it responded to the calibration tests and how it helps prepare for the human exploration of Mars. A comparison is also presented to previous environmental monitoring payloads landed on Mars on the Viking, Pathfinder, Phoenix, MSL, and InSight spacecraft.

Published
2021
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6. The Mars Environmental Dynamics Analyzer, MEDA. A Suite of Environmental Sensors for the Mars 2020 Mission

Author

J. A. Rodriguez-Manfredi, M. de la Torre Juárez, A. Alonso, V. Apéstigue, I. Arruego, T. Atienza, D. Banfield, J. Boland, M. A. Carrera, L. Castañer, J. Ceballos, H. Chen-Chen, A. Cobos, P. G. Conrad, E. Cordoba, T. del Río-Gaztelurrutia, A. de Vicente-Retortillo, M. Domínguez-Pumar, S. Espejo, A. G. Fairen, A. Fernández-Palma, R. Ferrándiz, F. Ferri, E. Fischer, A. García-Manchado, M. García-Villadangos, M. Genzer, S. Giménez, J. Gómez-Elvira, F. Gómez, S. D. Guzewich, A.-M. Harri, C. D. Hernández, M. Hieta, R. Hueso, I. Jaakonaho, J. J. Jiménez, V. Jiménez, A. Larman, R. Leiter, A. Lepinette, M. T. Lemmon, G. López, S. N. Madsen, T. Mäkinen, M. Marín, J. Martín-Soler, G. Martínez, A. Molina, L. Mora-Sotomayor, J. F. Moreno-Álvarez, S. Navarro, C. E. Newman, C. Ortega, M. C. Parrondo, V. Peinado, A. Peña, I. Pérez-Grande, S. Pérez-Hoyos, J. Pla-García, J. Polkko, M. Postigo, O. Prieto-Ballesteros, S. C. R. Rafkin, M. Ramos, M. I. Richardson, J. Romeral, C. Romero, K. D. Runyon, A. Saiz-Lopez, A. Sánchez-Lavega, I. Sard, J. T. Schofield, E. Sebastian, M. D. Smith, R. J. Sullivan, L. K. Tamppari, A. D. Thompson, D. Toledo, F. Torrero, J. Torres, R. Urquí, T. Velasco, D. Viúdez-Moreiras, and S. Zurita

Published
2021
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