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EOP JerseyCityVisit0807
EOP may refer to: * Earth orientation parameters * Electroosmotic pump * Emergency operations plan (US) * European Opera-directing Prize * Exchange Online Protection, part of Microsoft's Exchange Online family * Executive Office of the President of the United States * External occipital protuberance * Hellenic Cycling Federation ( gr, Ελληνικη Ομοσπονδια Ποδηλασιας, link=no), the governing body of cycle racing in Greece * Early Oil Project, the development of the Chirag oilfield * Enhanced opportunity partner, NATO Enhanced Partnership Opportunities interoperability program * Escalation of Privilege, a cybersecurity Computer security, cybersecurity (cyber security), or information technology security (IT security) is the protection of computer systems and networks from attack by malicious actors that may result in unauthorized information disclosure, the ... threat * Endrogenous opioid peptides See also * Ethernet over PDH, a set of p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earth Orientation Parameters
In geodesy and astrometry, earth orientation parameters (EOP) describe irregularities in the rotation of planet Earth. EOP provide the rotational transform from the International Terrestrial Reference System (ITRS) to the International Celestial Reference System (ICRS), or vice versa, as a function of time. Earth's rotational velocity is not constant over time. Any motion of mass in or on Earth causes a slowdown or speedup of the rotation speed, or a change of rotation axis. Small motions produce changes too small to be measured, but movements of very large mass, like sea currents, tides, or those resulting from earthquakes, can produce discernible changes in the rotation and can change very precise astronomical observations. Global simulations of atmosphere, ocean, and land dynamics are used to create effective angular momentum (EAM) functions that can be used to predict changes in EOP. Components Universal time Universal time (UT1) tracks the Earth's rotation in time, which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |