Mars 2020 Perseverance Rover Studies of the Martian Atmosphere Over Jezero From Pressure Measurements

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 ch...

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Detalles Bibliográficos
Autores: Sánchez Lavega, Agustín María, Del Río Gaztelurrutia, María Teresa, Hueso Alonso, Ricardo, de la Torre Juárez, Manuel, Martínez, Germán M., Harri, Ari Matti, Genzer, Maria, Hieta, Maria, Polkko, J., Rodríguez Manfredi, José Antonio, Lemmon, Mark T., Plá García, Jorge, Toledo, Daniel, Vicente Retortillo, Álvaro, Viúdez Moreiras, Daniel, Munguira Ruiz, Asier, Tamppari, Leslie, Newman, Claire E., Gómez Elvira, Javier, Guzewich, Scott, Bertrand, Tanguy, Apestigue, Victor, Arruego, Ignacio, Wolff, Michael J., Banfield, Don, Jaakonaho, I., Makinen, T.
Tipo de recurso: artículo
Fecha de publicación:2023
País:España
Institución:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/61119
Acceso en línea:http://hdl.handle.net/10810/61119
Access Level:acceso abierto
Palabra clave:M2020 Perseverance
Mars atmosphere
pressure measurements
Descripción
Sumario: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°.

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