Mathematics – Logic
Scientific paper
May 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agusm..gp22a04p&link_type=abstract
American Geophysical Union, Spring Meeting 2001, abstract #GP22A-04
Mathematics
Logic
1500 Geomagnetism And Paleomagnetism, 5400 Planetology: Solid Surface Planets
Scientific paper
Magnetic field observations from the Mars Global Surveyor mapping orbit (400 km altitude) are compared with terrestrial magnetic field observations (Magsat and Orsted, 400-740 km). The radial magnetic field at 400 km ranges from +-21 nT over the Earth vs +-250 nT over Mars. Our understanding of the sources of the terrestrial magnetic field of lithospheric origin (Degrees 15-40+) is such that we have produced physically-motivated global earth models of induced and remanent magnetization that explain most of the long-wavelength field seen at satellite altitude. A comparison of the terrestrial model and observations illustrates the complexity of the sources hidden by the long-wavelength observations, and the difficulties of inferring the source magnetizations from the observations. Several of the Martian sources sampled during the aerobraking (down to 90 km altitude) phase of the mission can be associated with distinct tectonic or geologic provinces and we discuss our interpretations of those provinces.
Langlais Benoit
Mandea Mioara
Purucker Michael E.
No associations
LandOfFree
Terrestrial and Martian magnetizations of lithospheric origin: Comparative Planetology does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Terrestrial and Martian magnetizations of lithospheric origin: Comparative Planetology, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Terrestrial and Martian magnetizations of lithospheric origin: Comparative Planetology will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1272598