Getting your hands on Mars data and some sample...
Transcript of Getting your hands on Mars data and some sample...
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Getting your hands on Mars data and some sample science
Paul WithersCEDAR 2004.06.29 Sante Fe
Comparative Aeronomy on Earth and Mars Workshop([email protected])
Copies of talk available…
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The Basic Idea
• You are excited about doing some comparative Earth/Mars science, but do not know what Mars data exists, how to find it, where to start in the literature, or what is coming in the future
• I aim to give an overview of those topics, with many useful references
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Outline
• Types of data that are (and are not) available
• Good places to start• Getting at the Data• Literature• Opportunities• Example Studies
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Available Data (Old)
• Mariner 6, 7, and 9 Ultraviolet Spectrometer• Viking Lander vertical profiles of ion and neutral
composition (2 of each)• 433 ne(z) profiles from radio occultations by
many spacecraft• Phobos 2 data (some particles and fields expts)• GCM output (PDS volume mogc_0001 and
http://data.engin.umich.edu/tgcm_planets_archive/thermo.html)
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Available Data (Recent)• Mars Global Surveyor (MGS) 3-axis
Magnetometer data along flight path• MGS Electron Reflectometer, energy
spectra of electrons with some spatial resolution
• MGS TES T(p) in lower atmosphere (0 –60 km)
• MGS and Mars Odyssey Accelerometer thermospheric densities (100 – 160 km) along aerobraking flight path
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Anticipated Data (Mars Express)• PFS (IR spectrometer) T(p), H2O, CO2,
trace species, aerosol properties• SPICAM (UV spectrometer) O3(z), H2O,
rho(z) from 40 – 200 km (?), airglow• MARSIS (subsurface radar) topside
ionospheric sounding• ASPERA (ion spectrometer and energetic
neutral imager) • MaRS (radio occultations) T(p), ne(z)
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Desired Data
• Thermospheric Dynamics• Ionospheric Dynamics• Additional ion/neutral composition profiles• Higher resolution magnetic field data• Observations of escaping species• General observations near magnetic
anomalies
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Places to Start
• National Space Science Data Center (NSSDC)– http://nssdc.gsfc.nasa.gov
• Planetary Data System (PDS)– http://pds.jpl.nasa.gov (Main)– http://pds-ppi.igpp.ucla.edu (Ion., Plasma, etc) – http://pds-atmosphere.nmsu.edu (Atm.)
• “Mars”, ed. Kieffer et al., University of Arizona Press, 1992
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Other references
• Atmospheres in the Solar System: Comparative Aeronomy, Eds. Mendillo, Nagy, and Waite, AGU Geophysical Monograph 130, 2002
• Venus and Mars: Atmospheres, Ionospheres, and Solar Wind Interactions, Eds. Luhmann, Tatrallyay, and Pepin, AGU Geophysical Monograph 66, 1992
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$ - http://research.hq.nasa.gov/code_s/open.cfm13 August 2004
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Example Studies(As presented earlier today)
Nm2 D2 H
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Nm2 D2 sec(X)