This study analyzes correlations between magnetic field data from closely-spaced pairs of ground magnetometers to observe the spatial scale of ionospheric current signatures. Correlations were mainly calculated in 7.5 minute intervals for periods of multiple days. Distributions were taken from the collection of these 7.5 minute intervals to identify the amount of time where the magnetometers were observing "similar" or "different" ionospheric signatures. The raw magnetometer data was taken from two geomagnetic storms: one taking place on 7-8 September, 2017, and the other taking place on 23-24 March, 2023. These periods were selected due to the presence of both high and low geomagnetic activity. The final distributions calculated from this analysis are available in Correlation_Distributions.csv.
Scan of specimen ummz:mammals:97068 (Ammotragus lervia) - Skull. Raw Dataset includes 1601 TIF images (each 1972 x 1578 x 1 voxel at 0.1215074 mm resolution, derived from 1601 scan projections), xtek and vgi files for volume reconstruction. and Scan of specimen ummz:mammals:97068 (Ammotragus lervia) - Skull. Reconstructed Dataset includes 1972 TIF images (each 1972 x 1578 x 1 voxel at 0.121507 mm resolution, derived from 1601 scan projections), xtek and vgi files for volume reconstruction.
Scan of specimen ummz:mammals:103305 (Eudorcas THOMSONII) - Skull. Raw Dataset includes 1601 TIF images (each 1870 x 924 x 1 voxel at 0.0912381 mm resolution, derived from 1601 scan projections), xtek and vgi files for volume reconstruction. and Scan of specimen ummz:mammals:103305 (Eudorcas THOMSONII) - Skull. Reconstructed Dataset includes 1636 TIF images (each 1870 x 924 x 1 voxel at 0.091238 mm resolution, derived from 1601 scan projections), xtek and vgi files for volume reconstruction.
Scan of specimen ummz:mammals:125684 (Capreolus capreolus) - Skull. Raw Dataset includes 1601 TIF images (each 1555 x 1967 x 1 voxel at 0.1215076 mm resolution, derived from 1601 scan projections), xtek and vgi files for volume reconstruction. and Scan of specimen ummz:mammals:125684 (Capreolus capreolus) - Skull. Reconstructed Dataset includes 1411 TIF images (each 1555 x 1967 x 1 voxel at 0.121508 mm resolution, derived from 1601 scan projections), xtek and vgi files for volume reconstruction.
Scan of specimen ummz:mammals:178562 (Ourebia ourebi) - Skull. Raw Dataset includes 1601 TIF images (each 791 x 1671 x 1 voxel at 0.1214979 mm resolution, derived from 1601 scan projections), xtek and vgi files for volume reconstruction. and Scan of specimen ummz:mammals:178562 (Ourebia ourebi) - Skull. Reconstructed Dataset includes 1446 TIF images (each 791 x 1671 x 1 voxel at 0.121498 mm resolution, derived from 1601 scan projections), xtek and vgi files for volume reconstruction.
Scan of specimen ummz:mammals:98974 (Pithecia pithecia) - Skull. Raw Dataset includes 1601 TIF images (each 1906 x 1171 x 1 voxel at 0.03753849 mm resolution, derived from 1601 scan projections), xtek and vgi files for volume reconstruction. and Scan of specimen ummz:mammals:98974 (Pithecia pithecia) - Skull. Reconstructed Dataset includes 1347 TIF images (each 1906 x 1171 x 1 voxel at 0.037538 mm resolution, derived from 1601 scan projections), xtek and vgi files for volume reconstruction.
Scan of specimen ummz:mammals:161558 (Rousettus amplexicaudatus AMPLEXICAUDATUS) - Skull. Raw Dataset includes 3141 TIF images (each 1493 x 1512 x 1 voxel at 0.03506225 mm resolution, derived from 3141 scan projections), xtek and vgi files for volume reconstruction. and Scan of specimen ummz:mammals:161558 (Rousettus amplexicaudatus AMPLEXICAUDATUS) - Skull. Reconstructed Dataset includes 1189 TIF images (each 1493 x 1512 x 1 voxel at 0.035062 mm resolution, derived from 3141 scan projections), xtek and vgi files for volume reconstruction.
Scan of specimen ummz:mammals:161556 (Rousettus amplexicaudatus AMPLEXICAUDATUS) - Skull. Raw Dataset includes 3141 TIF images (each 1691 x 1195 x 1 voxel at 0.03272923 mm resolution, derived from 3141 scan projections), xtek and vgi files for volume reconstruction. and Scan of specimen ummz:mammals:161556 (Rousettus amplexicaudatus AMPLEXICAUDATUS) - Skull. Reconstructed Dataset includes 1864 TIF images (each 1691 x 1195 x 1 voxel at 0.032729 mm resolution, derived from 3141 scan projections), xtek and vgi files for volume reconstruction.
Scan of specimen ummz:mammals:39515 (Philantomba MONTICOLA monticola) - Skull. Raw Dataset includes 1601 TIF images (each 1691 x 871 x 1 voxel at 0.07610194 mm resolution, derived from 1601 scan projections), xtek and vgi files for volume reconstruction. and Scan of specimen ummz:mammals:39515 (Philantomba MONTICOLA monticola) - Skull. Reconstructed Dataset includes 1077 TIF images (each 1691 x 871 x 1 voxel at 0.076102 mm resolution, derived from 1601 scan projections), xtek and vgi files for volume reconstruction.
Scan of specimen ummz:mammals:39516 (Neotragus batesi) - Skull. Raw Dataset includes 1601 TIF images (each 1818 x 1872 x 1 voxel at 0.06062173 mm resolution, derived from 1601 scan projections), xtek and vgi files for volume reconstruction. and Scan of specimen ummz:mammals:39516 (Neotragus batesi) - Skull. Reconstructed Dataset includes 837 TIF images (each 1818 x 1872 x 1 voxel at 0.060622 mm resolution, derived from 1601 scan projections), xtek and vgi files for volume reconstruction.
