Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.rights.license© 2023 Lunar and Planetary Institute and Jet Propulsion Laboratory, California Institute of Technology. Government sponsorship
dc.contributor.authorMartínez, G.
dc.contributor.authorVicente Retortillo, Á.es
dc.contributor.authorSmith, Michaeles
dc.contributor.authorJohnson, J.
dc.contributor.authorMora Sotomayor,
dc.contributor.authorSánchez Lavega,
dc.contributor.authorLemmon, M.
dc.contributor.authorMandon, Lucíaes
dc.contributor.authorConrad, Pamela
dc.contributor.authorNewman, C.
dc.contributor.authorDe la Torre Juarez,
dc.contributor.authorJordan, Franciscoes
dc.contributor.authorTamppari, L.
dc.contributor.authorMcconnochie, T.
dc.contributor.authorHarri, Ari-Matties
dc.contributor.authorZorzano, María Pazes
dc.contributor.authorPrieto Ballesteros,
dc.contributor.authorRodríguez Manfredi, J.
dc.contributor.otherCentro de Astrobiología del Instituto Nacional de Técnica Aeroespacial y CSIC, MDM-2017-0737es
dc.identifier.citationJournal of Geophysical Research: Planets 128(2): e2022JE007537(2023)es
dc.descriptionData Availability Statement All Mars 2020 MEDA data necessary to reproduce each figure shown in this manuscript are available via the Planetary Data System (PDS) Atmospheres node (Rodriguez-Manfredi & de la Torre Juarez, 2021). An exception to this are the LWd values in the 5–80 μm range (Figures 8, 9, and 10 top, Figure 11 top, and Figure 15), and the aerosol opacity values derived from TIRS (Figure 10, middle and Figure 11, top), which are publicly available via the USRA Houston Repository (Martinez et al., 2022). THEMIS retrievals of thermal inertia shown in Figure 7 and TES retrievals of albedo in Figure 14 can be queried and processed using the open-source JMARS (Christensen et al., 2009) and MARSTHERM (Putzig et al., 2013)
dc.description.abstractThe Mars Environmental Dynamics Analyzer (MEDA) on board Perseverance includes first-of-its-kind sensors measuring the incident and reflected solar flux, the downwelling atmospheric IR flux, and the upwelling IR flux emitted by the surface. We use these measurements for the first 350 sols of the Mars 2020 mission (Ls ∼ 6°–174° in Martian Year 36) to determine the surface radiative budget on Mars and to calculate the broadband albedo (0.3–3 μm) as a function of the illumination and viewing geometry. Together with MEDA measurements of ground temperature, we calculate the thermal inertia for homogeneous terrains without the need for numerical thermal models. We found that (a) the observed downwelling atmospheric IR flux is significantly lower than the model predictions. This is likely caused by the strong diurnal variation in aerosol opacity measured by MEDA, which is not accounted for by numerical models. (b) The albedo presents a marked non-Lambertian behavior, with lowest values near noon and highest values corresponding to low phase angles (i.e., Sun behind the observer). (c) Thermal inertia values ranged between 180 (sand dune) and 605 (bedrock-dominated material) SI units. (d) Averages of albedo and thermal inertia (spatial resolution of ∼3–4 m2) along Perseverance's traverse are in very good agreement with collocated retrievals of thermal inertia from Thermal Emission Imaging System (spatial resolution of 100 m per pixel) and of bolometric albedo in the 0.25–2.9 μm range from (spatial resolution of ∼300 km2). The results presented here are important to validate model predictions and provide ground-truth to orbital
dc.description.sponsorshipGermán Martínez wants to acknowledge JPL funding from USRA Contract Number 1638782. A. V. R. is supported by the Spanish State Research Agency (AEI) Project MDM-2017-0737, Unidad de Excelencia “María de Maeztu”—Centro de Astrobiología (INTA-CSIC), and by the Comunidad de Madrid Project S2018/NMT-4291 (TEC2SPACE-CM). J. J. acknowledges funding from Mastcam-Z ASU subcontract 15-707. R. H., A. S. L., and A. M. were supported by Grant PID2019-109467GB-I00 funded by MCIN/AEI/10.13039/501100011033/ and by Grupos Gobierno Vasco IT1742-22. F. G. acknowledges financial support from the Agencia Estatal de Investigación of the Ministerio de Ciencia e Innovación and the European Regional Development Fund “A way of making Europe” through project the Centre of Excellence “María de Maeztu” award to the Centro de Astrobiología (MDM-2017-0737), and from the Instituto Nacional de Técnica Aeroespacial through Project S.IGS22001. L. M. was supported by CNES and IRIS-OCAV. J. P., M. H., and A.-M. H. are thankful for the Finnish Academy Grant 310509. M.-P. Z. was supported by Grant PID2019-104205GB-C21 funded by MCIN/AEI/10.13039/501100011033. M. de la T. J. acknowledges partial funding from the National Aeronautics and Space Administration (80NM0018D0004). The JPL co-authors acknowledge funding from NASA's Space Technology Mission Directorate and the Science Mission
dc.publisherAGU Advancing Earth and Space Sciencees
dc.relationinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-109467GB-I00/ES/ATMOSFERAS PLANETARIAS DEL SISTEMA SOLAR/es
dc.relationinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-104205GB-C21es
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internationales
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.subjectMars 2020es
dc.titleSurface Energy Budget, Albedo, and Thermal Inertia at Jezero Crater, Mars, as Observed From the Mars 2020 MEDA Instrumentes
dc.contributor.funderComunidad de Madrides
dc.contributor.funderUniversities Space Research Association (USRA)es
dc.contributor.funderAgencia Estatal de Investigación (AEI)es
dc.contributor.funderGobierno Vascoes
dc.contributor.funderInstituto Nacional de Técnica Aeroespacial (INTA)es
dc.contributor.funderCentre National D'Etudes Spatiales (CNES)es
dc.contributor.funderNational Aeronautics and Space Administration (NASA)es
Appears in Collections:(CAB) Artículos
(Espacio) Artículos

This item is licensed under a Creative Commons License Creative Commons