Is the lunar magnetic field correlated with gravity or topography?

<p>Supplementary data to the article</p> <p>&nbsp; &nbsp; Gong, S. and Wieczorek, M. (2020) Is the lunar magnetic field correlated<br> &nbsp; &nbsp; with gravity or topography? Journal of Geophysical Research: Planets.</p> <p>This archive contains the Bouguer gravity model used in the analyses of the<br> above cited manuscript, as well as the data files to reproduce Figures 2-3 and<br> Figures S1-S3. For the correlation results, the bandwidth and angular radius of<br> the window were 26 and 10 degrees, respectively, which yields a concentration<br> factor that is better than 99%.</p> <p><br> FILE DESCRIPTIONS</p> <p>34_12_3220_900_80_misfit.sh</p> <p>&nbsp; &nbsp; This file contains the spherical harmonic coefficients of the Bouguer<br> &nbsp; &nbsp; gravity model up to degree and order 900. The two values in the first<br> &nbsp; &nbsp; row correspond to the reference radius of the model in km and the<br> &nbsp; &nbsp; constant GM in km^3/s^-2. To generate this model, all known gravitational<br> &nbsp; &nbsp; contributions from the crust were removed from the free-air gravity,<br> &nbsp; &nbsp; including surface relief, lateral variations in crustal density, and<br> &nbsp; &nbsp; crustal thickness variations. The crustal thickness model is from<br> &nbsp; &nbsp; Wieczorek et al. (2013), which has an average thickness of 34 km, a<br> &nbsp; &nbsp; constant crustal porosity of 12%, and a mantle density of 3200 kg/m^3.</p> <p><br> mc_total_10_26_1_surface.dat</p> <p>&nbsp; &nbsp; Data used to generate the lower panel of Figure 2. This file contains the<br> &nbsp; &nbsp; 95% confidence limits of the average correlation from the Monte Carlo<br> &nbsp; &nbsp; simulations which were performed every 30 degrees in both longitude and<br> &nbsp; &nbsp; latitude. The first two columns correspond to the latitude and longitude,<br> &nbsp; &nbsp; and the third to fifth columns correspond to the 95% confidence limits by<br> &nbsp; &nbsp; using topography, total free-air gravity, and total Bouger gravity,<br> &nbsp; &nbsp; respectively.</p> <p><br> spec_10_26_1_surface.dat</p> <p>&nbsp; &nbsp; Data used to generate Figure 3. Correlation results between total magnetic<br> &nbsp; &nbsp; field and topography, total free-air gravity, and total Bouguer gravity at<br> &nbsp; &nbsp; the surface. The first two columns correspond to the latitude and longitude,<br> &nbsp; &nbsp; and the third to fifth columns correspond to the ratio between the average<br> &nbsp; &nbsp; correlation and its 95% confidence limits by using topography, total<br> &nbsp; &nbsp; free-air gravity, and total Bouger gravity, respectively. If the value is<br> &nbsp; &nbsp; equal to or greater than 1, this indicates that the total magnetic field is<br> &nbsp; &nbsp; positively correlated with the testing field (topography, total free-air<br> &nbsp; &nbsp; gravity, or total Bouguer gravity); If the value is equal to or less than<br> &nbsp; &nbsp; -1, this indicates that the total magnetic field is negatively correlated<br> &nbsp; &nbsp; with the testing field.</p> <p><br> spec_10_26_1_surface_4lwin.dat</p> <p>&nbsp; &nbsp; Data used to generate Figure S1. Correlation results calculated at the<br> &nbsp; &nbsp; surface by removing the first 4*lwin degrees.</p> <p><br> spec_10_26_1_30km.dat</p> <p>&nbsp; &nbsp; Data used to generate Figure S2. Correlation results calculated at 30 km<br> &nbsp; &nbsp; altitude.</p> <p><br> spec_10_26_1_surface_3sigma.dat</p> <p>&nbsp; &nbsp; Data used to generate Figure S3. Correlation results calculated at the<br> &nbsp; &nbsp; surface by using the 99% confidence limits.</p>