Martian magnetism with orbiting sub-millimeter sensor: simulated retrieval system
Number of Authors: 9
2017 (English)In: Geoscientific Instrumentation, Methods and Data Systems, ISSN 2193-0856, E-ISSN 2193-0864, Vol. 6, no 1, 27-37 p.Article in journal (Refereed) Published
A Mars-orbiting sub-millimeter sensor can be used to retrieve the magnetic field at low altitudes over large areas of significant planetary crustal magnetism of the sur- face of Mars from measurements of circularly polarized radi- ation emitted by the 368 GHz ground-state molecular oxygen absorption line. We design a full retrieval system for one ex- ample orbit to show the expected accuracies on the magnetic field components that one realization of such a Mars satellite mission could achieve. For one set of measurements around a tangent profile, we find that the two horizontal components of the magnetic field can be measured at about 200 nT error with a vertical resolution of around 4 km from 6 up to 70 km in tangent altitude. The error is similar regardless of the true strength of the magnetic field, and it can be reduced by re- peated measurements over the same area. The method and some of its potential pitfalls are described and discussed.
Place, publisher, year, edition, pages
2017. Vol. 6, no 1, 27-37 p.
Mars, magnetism, sub-millimeter, remote sensing
Research subject Atmospheric science
IdentifiersURN: urn:nbn:se:ltu:diva-61625DOI: 10.5194/gi-6-27-2017ISI: 000395383700001ScopusID: 2-s2.0-85011044675OAI: oai:DiVA.org:ltu-61625DiVA: diva2:1069427
Validerad; 2017; Nivå 2; 2017-02-13 (andbra)2017-01-282017-01-252017-03-23Bibliographically approved