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Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Martian magnetism with orbiting sub-millimeter sensor
T2 - simulated retrieval system
AU - Larsson, Richard
AU - Milz, Mathias
AU - Ericksson, Patrick
AU - Mendrok, Jana
AU - Kasai, Yasuko
AU - Buehler, Stefan Alexander
AU - Dieval, Catherine Carmen Gisele
AU - Brain, David
AU - Harthog, Paul
PY - 2017/1/27
Y1 - 2017/1/27
N2 - 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 surface of Mars from measurements of circularly polarized radiation emitted by the 368 GHz ground-state molecular oxygen absorption line. We design a full retrieval system for one example 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 repeated measurements over the same area. The method and some of its potential pitfalls are described and discussed.
AB - 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 surface of Mars from measurements of circularly polarized radiation emitted by the 368 GHz ground-state molecular oxygen absorption line. We design a full retrieval system for one example 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 repeated measurements over the same area. The method and some of its potential pitfalls are described and discussed.
U2 - 10.5194/gi-6-27-2017
DO - 10.5194/gi-6-27-2017
M3 - Journal article
VL - 6
SP - 27
EP - 37
JO - Geoscientific Instrumentation, Methods and Data Systems
JF - Geoscientific Instrumentation, Methods and Data Systems
SN - 2193-0856
ER -