Ọrụ Ntụgharị Ụwa na Ntụziaka
| Oge/afọ mmalite | 1987  |
|---|---|
| aha gọọmenti | International Earth Rotation and Reference Systems Service |
| aha mkpirisi | IERS |
| onye hiwere | International Astronomical Union, International Union of Geodesy and Geophysics |
| dochie | International Time Bureau |
| webụsaịtị | https://www.iers.org |
International Earth Rotation and Reference Systems Service (IERS), nke bụbu International Earth Rotation Service, bụ otu na ahụ maka idowe oge zuru ụwa ọnụ na ụkpụrụ ntụaka, ọkachasị site na Parameter Orientation Earth (EOP) na International Celestial Reference System (ICRS) .
Akụkọ ihe mere eme
[dezie | dezie ebe o si]E hiwere IERS n'ụdị ya ugbu a na 1987 site n'aka International Astronomical Union na International Union of Geodesy and Geophysics, nọchiri mbụ International Polar Motion Service (IPMS) na ngalaba ntụgharị ụwa nke Bureau International de l'Heure (BIH) . Ọrụ ahụ malitere ịrụ ọrụ na Jenụwarị 1, 1988. Kemgbe mmalite ya, IERS ewepụtala ụlọ ọrụ ọhụrụ gụnyere GPS Coordinating Center na 1990, DORIS Coordinating Center na 1994 na Global Geophysical Fluids Center na 1998. A na akpọbu nzukọ a dị ka International Ọrụ ntụgharị ụwa ruo n'afọ 2003 mgbe ọ gbanwere aha ya ka ọ bụrụ ụdị ọ dị ugbu a, nke nzukọ a họọrọ idowe mkpọaha IERS.
Ọrụ
[dezie | dezie ebe o si]IERS nwere ihe dị iche iche dị na United States, Europe na Australia. N'ime ọrụ ya ndị ọzọ, ndị IERS na ahụ maka ịkpọpụta sekọnd ịwụli elu.
Ndị Sub Bureau maka Ọrụ Ọsọ na Amụma nke Parameters Orientation Ụwa nke IERS, nke dị na United States Naval Observatory, na enyocha ntụgharị ụwa. Akụkụ nke ọrụ ya na agụnye mkpebi nke usoro oge dabere na ọnụego mgbanwe nke ụwa ugbu a. Ọrụ ndị ọzọ nke IERS dị na Paris Observatory.
UT1 bụ oge na abụghị uwe akọwara dabere na ntụgharị ụwa.
Ọ kọwapụtara ntụaka IERS Meridian, International Terrestrial Reference System (ITRS), na Frames International Terrestrial Reference (ITRF) sochirinụ. Sistemu nchikota emetụtara na eji sistemu igodo satịlaịtị dịka GPS na Galileo: WGS84 na GTRF. Nkọwa na mmekọrịta dị n'etiti ITRF, ICRF na EOP bụ ụkpụrụ nkwekọrịta IERS. Dịka nke 2022, mgbakọ kacha ọhụrụ bụ Mgbakọ IERS (2010).
Ngwaahịa nghazi ụwa
[dezie | dezie ebe o si]Ebumnuche nke IERS bụ ịnye ndị obodo geodesy ka ukwuu ozi nhazi ụwa n'ụdị akwụkwọ akụkọ:
See also
[dezie | dezie ebe o si]- Astrometry
- International Atomic Time
- Coordinated Universal Time
- International Terrestrial Reference System and Frame
- Leap second
- International Celestial Reference System and its realizations
- Earth rotation, ΔT
- IERS Reference Meridian
- List of astronomical societies
- Altamimi (2013). Reference Frames for Applications in Geosciences. Springer Science & Business Media. ISBN 978-3-642-32998-2.
- Gupta (2011). Encyclopedia of Solid Earth Geophysics. Springer Science & Business Media. ISBN 978-90-481-8701-0.
- McCarthy (2009). Time: From Earth Rotation to Atomic Physics. Wiley. ISBN 978-3-527-62795-0.
- Official website
- (in English, French, and Russian) Earth Orientation Center of the IERS : data and interactive analysis (Paris Observatory)
- (in English and French) IERS International Celestial Reference Frame center