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The Chandler wobble or Chandler variation of latitude is a small deviation in the Earth's axis of rotation relative to the solid earth, which was discovered by and named after American astronomer Seth Carlo Chandler in 1891. It amounts to change of about 9 metres (30 ft) in the point at which the axis intersects the Earth's surface and has a period of 433 days. This wobble, which is an astronomical nutation, combines with another wobble with a period of six years, so that the total polar motion varies with a period of about 7 years.
Seth Carlo Chandler, Jr. was an American astronomer, geodesist, and actuary.
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Jean O'Brien Dickey was an American scientist. Dickey was a pioneering geodesist and particle physicist with expertise in Earth rotation. After receiving a PhD from Rutgers University, she spent much of her career at NASA's Jet Propulsion Laboratory (JPL). Between 1994 and 1996, she served as President of the American Geophysical Union's geodesy section, the first woman to hold that position.
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Thomas A. Herring is a geophysicist, known for developing and applying systems of space geodesy to high-precision geophysical measurements and geodynamic research.
Ivan Istvan Mueller was a Hungarian-American geodesist and professor at Ohio State University, a leading training center for geodesy in the USA.
Tonie Marie van Dam is an American geophysicist and geodesist, known for her pioneering research on solid Earth deformations due to loads from atmospheric and hydrologic pressures. She and her collaborators used space geodetic observations and modeling for increased precision in measuring and understanding such loads.
John Matthew Wahr was an American geophysicist and geodesist, known for his research on Earth's rotation, Earth tides, ocean tides, post-glacial rebound, and other topics in the geosciences.
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References
- 1 2 3 "Carter, Merri Sue 1964–", Encyclopedia.com, retrieved 2022-06-09
- ↑ "Carter, William E. 1939–", Encyclopedia.com, retrieved 2022-06-09
- ↑ "World Data Center for the Rotation of the Earth, Washington", World Data Center System, retrieved 2022-06-09
- ↑ Reviews of Latitude:
- Dick, Steven J. (April 2003), "Review" (PDF), International Journal of Naval History, 2 (1)
- Good, Gregory A. (2003), Earth Sciences History, 22 (2): 230–232, JSTOR 24138782
{{citation}}: CS1 maint: untitled periodical (link) - Matthews, Barry (June 2004), "Review" (PDF), Journal of the Royal Astronomical Society of Canada, 98 (3): 138, Bibcode:2004JRASC..98..136.
- Ray, Richard D. (2003), Eos, American Geophysical Union, 84 (24): 229, doi: 10.1029/2003eo240008
{{citation}}: CS1 maint: untitled periodical (link) - Rothenberg, Marc (April 2004), Technology and Culture, 45 (2): 439–440, doi:10.1353/tech.2004.0090, JSTOR 40060767
{{citation}}: CS1 maint: untitled periodical (link) - "Latitude looks at defining moment", Gainesville Sun, December 7, 2002
- ↑ Reviews of Simon Newcomb:
- Graham, John (October 2007), Eos, American Geophysical Union, 88 (43): 447, Bibcode:2007EOSTr..88..447G, doi: 10.1029/2007eo430011
{{citation}}: CS1 maint: untitled periodical (link) - Robinson, Leif J. (September 2006), "America's astronomer king", Sky & Telescope, vol. 112, no. 5, p. 79, Bibcode:2006S&T...112e..79R
- Schaefer, Bradley E. (February 2007), Physics Today, 60 (2): 66–67, Bibcode:2007PhT....60b..66C, doi:10.1063/1.2711643
{{citation}}: CS1 maint: untitled periodical (link) - Schwarz, Charles R. (March 2007), "Review" (PDF), IAG Newsletter, International Association of Geodesy: 11–12
- Graham, John (October 2007), Eos, American Geophysical Union, 88 (43): 447, Bibcode:2007EOSTr..88..447G, doi: 10.1029/2007eo430011
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