The magnetic anomaly map of east and southeast Asia was produced by compiling manydata sets collected by air-borne and ship-borne surveys. In order to tie between adjoining areas, DGRF-RGRF removal and a linear shift were applied to each data set. Linear features are detected from the map...
1) East Asia magnetic anomaly 东亚大陆磁异常1. The magnetic records of the world station network during IGY/IGC with additional data at Changchun, Beijing, Shanghai and Lahsa of China have been used to study the characteristics of Sq in East Asia magnetic anomaly region. 30)期间全球地磁台...
[13] As shown in Figure 3, the anomaly magnetic variations have periods of 3 min approximately, so the amplitudes of TMDs were possibly weaken or smoothed away in the 1 min time resolution records, which make them difficult to be detected somewhere. Therefore, it is necessary to have...
Map of the modelled averaged acceleration. Map of the vertical down component of the magnetic field average acceleration between 2005.0 and 2014.0 at the Earth’s surface. Full size image Figure 9 shows time series of the Euler angle corrections for 30-day segments, estimated over the satellite ...
Chris Finlay, senior scientist at DTU Space in Denmark, said, “Swarm data are now enabling us to map detailed changes in Earth's magnetic field, not just at Earth's surface but also down at the edge of its source region in the core. “Unexpectedly, we are finding rapid localised fiel...
It was observed that generally TEC values were higher at the dip equator than near the crest of the equatorial ionization anomaly.TEC-CTR was seen to have two peak values, one occurred in the pre-sunrise hours around 02:00-03:00 UT and the second (highest) occurred in the post-sunset ...
Magnetic anomaly map of the SCS showing deep tow magnetic survey tracks and magnetic anomalies. The yellow dashed lines show the final fossil ridges. The pink dashed line marks the place of the ridge jump. The arrow indicates the direction of ridge migration. The solid green line marks the pl...
<p id="abspara0010" view="all"> We have estimated the DBML (depth to the bottom of the magnetic layer) in South America from the inversion of magnetic anomaly data extracted from the EMAG2 grid. The results show that the DBML values, interpreted as the C
Insert: present location of tectonic terranes in Tibet and surrounding regions; (b), Updated geological map of the study area by us, showing our palaeomagnetic sampling sites (A–B section) are located at the southernmost margin of the Asian plate. In an effort to provide constraints to ...
As regards the magnetic field, we used aeromagnetic data of Italy acquired between 1971 and 1980 by AGIP57. The dataset was compiled by a total of 265,305 km of survey lines with a 2 km step size. The magnetic anomaly field map was obtained after the subtraction of the regional field (...