English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

In addition to torques exerted by the Moon, Sun, and planets, changes of the   Earth orientation parameters (EOP) are known to be caused also by excitations   by the atmosphere and oceans. Recently appeared studies, hinting that   geomagnetic jerks (GMJ, rapid changes of geomagnetic field) might be   associated with sudden changes of phase and amplitude of EOP (Holme and de   Viron 2005, 2013, Gibert and Le Mouёl 2008, Malkin 2013). We (Ron et al.   2015) used additional excitations applied at the epochs of GMJ to derive its   influence on motion of the spin axis of the Earth in space   (precession-nutation). We demonstrated that this effect, if combined with the   influence of the atmosphere and oceans, improves substantially the agreement   with celestial pole offsets observed by Very Long-Baseline Interferometry.   Here we concentrate our efforts to study possible influence of GMJ on   temporal changes of all five Earth orientation parameters defining the   complete Earth orientation in space. Numerical integration of Brzeziński's   broad-band Liouville equations (Brzeziński 1994) with atmospheric and oceanic   excitations, combined with expected GMJ effects, is used to derive EOP and   compare them with their observed values. We demonstrate that the agreement   between all five Earth orientation parameters integrated by this method and   those observed by space geodesy is improved substantially if the influence of   additional excitations at GMJ epochs is added to excitations by the   atmosphere and oceans

Earth orientation and its excitations by atmosphere, oceans, and geomagnetic jerks