Fluctuation of the Earth's magnetic field elements in Mexico revealed by archive documents since 1587
Por:
Goguitchaichvili, Avto, Hernandez-Quintero, Esteban, Garcia, Rafael, Cejudo, Ruben, Cifuentes, Gerardo, Cervantes, Miguel
Publicada:
1 ene 2020
Resumen:
Historical documents, archives and old photographic collections allowed to analyze 877 direct geomagnetic measurement data obtained by sailors (including pirates), United State Coast and Geodetic Survey and National Astronomical Observatory since 1587. The updated catalogue includes 844 values of magnetic declination, 495 of inclination, 467 of the horizontal intensity component (H) and 455 of the vertical intensity component (Z). All data were relocated to Mexico City through the pole conversion method in order to build a reference secular variation curve for Mexico and surrounding area using bootstrap method to mitigate the effect of outliers and estimate the probability of density functions. The directional variation patterns obtained in this investigation were compared to the curves retrieved from Sha.Dif.14k, GUFM1and IGRF-12 models while VADM fluctuations were confronted to similar quality determinations from other localities worldwide as well as archaeomagnetic curves from Mesoamerica. © 2020 Elsevier B.V.
Filiaciones:
Goguitchaichvili, Avto:
Servicio Arqueomagnetico Nacional, Instituto de Geofísica Unidad Michoacán, Universidad Nacional Autónoma de México, Mexico
Univ Nacl Autonoma Mexico, Unidad Michoacan, Inst Geofis, Serv Arqueomagnet Nacl, Mexico City, DF, Mexico
Hernandez-Quintero, Esteban:
Servicio Magnético, Instituto de Geofísica, Universidad Nacional Autónoma de México, Mexico
Univ Nacl Autonoma Mexico, Inst Geofis, Serv Magnet, Mexico City, DF, Mexico
Garcia, Rafael:
Servicio Arqueomagnetico Nacional, Instituto de Geofísica Unidad Michoacán, Universidad Nacional Autónoma de México, Mexico
Univ Nacl Autonoma Mexico, Unidad Michoacan, Inst Geofis, Serv Arqueomagnet Nacl, Mexico City, DF, Mexico
Cejudo, Ruben:
Servicio Arqueomagnetico Nacional, Instituto de Geofísica Unidad Michoacán, Universidad Nacional Autónoma de México, Mexico
Univ Nacl Autonoma Mexico, Unidad Michoacan, Inst Geofis, Serv Arqueomagnet Nacl, Mexico City, DF, Mexico
Cifuentes, Gerardo:
Servicio Magnético, Instituto de Geofísica, Universidad Nacional Autónoma de México, Mexico
Univ Nacl Autonoma Mexico, Inst Geofis, Serv Magnet, Mexico City, DF, Mexico
Cervantes, Miguel:
Servicio Arqueomagnetico Nacional, Instituto de Geofísica Unidad Michoacán, Universidad Nacional Autónoma de México, Mexico
Univ Nacl Autonoma Mexico, Unidad Michoacan, Inst Geofis, Serv Arqueomagnet Nacl, Mexico City, DF, Mexico
|