Open AccessPath of the Mean Rotational Pole From 1899 to 1994
Author(s) -
Mccarthy Dennis D.,
Luzum Brian J.
Publication year - 1996
Publication title -
geophysical journal international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0956-540X
DOI - 10.1111/j.1365-246x.1996.tb00024.x
Subject(s) - polar motion , geodesy , longitude , rotation (mathematics) , rotation around a fixed axis , earth's rotation , motion (physics) , geology , speed wobble , physics , geometry , mathematics , classical mechanics , latitude
SUMMARY Historical sources of polar motion are analysed together with modern data in order to compile a set of coordinates of the mean pole in a reference system consistent with that of the International Earth Rotation Service. the trend and quasi‐periodic motion of the pole are investigated, and we find that the rotational pole appears to be moving at the rate of 0.333 arcsec century −1 in the direction of 75.0° west longitude. Modern data also appear to be consistent with the possible existence of very low‐frequency periodic motion (Markowitz wobble).