Estimating the lithospheric magnetization of Earth and Mars using satellite magnetic data

我们建议对地球和火星的岩石圈磁场进行详细研究。就地球而言，数据的主要来源是德国CHAMP卫星，该卫星目前高度较低，特别适合岩石圈研究。对于火星，卫星数据由火星全球勘测者航天器(MGS)提供。在第一步中，在仔细选择数据和处理磁数据中的噪声之后，推导出地球岩石圈磁场的模型。将开发新的局部和全球建模技术，包括新的正则化，从而增强模型的稳健性。同时，火星的磁场图将使用标准方法从MGS数据中得出。然后，新开发的建模技术也将应用于火星。我们将对所得模型进行比较。在第二步中，将从获得的磁场模型中推导出火星磁化图，并选择磁性特征进行解释。然后将对这些特征的磁化进行建模，以更好地了解火星内部的磁性和岩浆过程。

We propose a detailed study of the lithospheric magnetic fields of the Earth and Mars. For the Earth, the main source of data is provided by the German CHAMP satellite which, with its currently lower altitudes, is particularly well suited for lithospheric studies. For Mars, satellite data is provided by the Mars Global Surveyor spacecraft (MGS). In a first step, models of the lithospheric magnetic field of the Earth are derived after a careful data selection and treatment of noise in the magnetic data. New localized and global modelling techniques will be developed, including new regularizations, thus enhancing the robustness of the models. In parallel, magnetic field maps for Mars will be derived from MGS data using standard methods. The newly developed modelling techniques will then also be applied to Mars. The resulting models will be compared. In a second step, a map of the Martian magnetization will be derived from the obtained magnetic field model and magnetic features will be selected for interpretation. Magnetization of these features will then be modeled to better understand magnetic and magmatic processes in the Martian interior.