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Author : C. Ma
Publisher : Unknown
Page : 432 pages
File Size : 48,8 Mb
Release : 1992
Category : Earth (Planet)
ISBN : UCSD:31822009211723
Author : C. Ma
Publisher : Unknown
Page : 248 pages
File Size : 44,7 Mb
Release : 1993
Category : Earth (Planet)
ISBN : UCSD:31822025380064
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
Page : 412 pages
File Size : 54,8 Mb
Release : 2018-07-24
Category : Electronic
ISBN : 1723549673
The Goddard VLBI group reports the results of analyzing 1412 Mark II data sets acquired from fixed and mobile observing sites through the end of 1990 and available to the Crustal Dynamics Project. Three large solutions were used to obtain Earth rotation parameters, nutation offsets, global source positions, site velocities, and baseline evolution. Site positions are tabulated on a yearly basis from 1979 through 1992. Site velocities are presented in both geocentric Cartesian coordinates and topocentric coordinates. Baseline evolution is plotted for 175 baselines. Rates are computed for earth rotation and nutation parameters. Included are 104 sources, 88 fixed stations and mobile sites, and 688 baselines. Ma, C. and Ryan, J. W. and Caprette, D. S. Goddard Space Flight Center NASA-TM-104552, REPT-92B00070, NAS 1.15:104552 ...
Author : Anonim
Publisher : Unknown
Page : 1690 pages
File Size : 47,9 Mb
Release : 1991
Category : Government publications
ISBN : UIUC:30112063914391
Author : Anonim
Publisher : Unknown
Page : 128 pages
File Size : 50,7 Mb
Release : 1994
Category : Government publications
ISBN : WISC:89117117382
Author : David E. Smith,Donald L. Turcotte
Publisher : American Geophysical Union
Page : 225 pages
File Size : 50,7 Mb
Release : 1993-01-11
Category : Science
ISBN : 9780875905242
Published by the American Geophysical Union as part of the Geodynamics Series, Volume 24. There are times in the history of a science when the evolving technology has been combined with a singleness of purpose to make possible the next great step. For space geodesy the decade of the 1980s was one of those times. Initiated in the early 1980s, the NASA Crustal Dynamics Project (CDP), a global venture of unprecedented proportions, exploited new technologies to confirm and refine tectonic theories and to advance geodynamics. The highlights of the efforts of scientists and engineers from some 30 countries are contained in the 54 papers collected in three volumes which are dedicated to the memory of Edward A. (Ted) Flinn, the former Chief Scientist of the NASA Geodynamics Program.
Author : Anonim
Publisher : Unknown
Page : 568 pages
File Size : 40,6 Mb
Release : 1994
Category : Aeronautics
ISBN : MINN:30000005901313
Author : Anonim
Publisher : Unknown
Page : 342 pages
File Size : 55,9 Mb
Release : 2024-06-28
Category : Geological surveys
ISBN : UCSD:31822008780272
Author : R. L. Wesson
Publisher : DIANE Publishing
Page : 300 pages
File Size : 54,7 Mb
Release : 1995-11
Category : Electronic
ISBN : 0788125494
Includes papers on: tsunamis in Puget Sound, WA; the 1964 Alaska Earthquake; earthquake prediction in the Tokyo area; an overview of the 1992 Joshua Tree, Landers and Big Bear earthquakes; seismicity in the Western U.S. and much more. 26 papers.
Author : Horst Montag,Christoph Reigber
Publisher : Springer Science & Business Media
Page : 482 pages
File Size : 51,8 Mb
Release : 2012-12-06
Category : Science
ISBN : 9783642781490
The investigation of the kinematics and dynamics of the Earth has achieved remarkable progresses in the last decades in understanding and explaining a large variety of geo- dynamical, geophysical and geological phenomena. The impact of increasingly precise geodetic space-time measurements and analyses have much contributed to these results. Papers presented atthe 7th International Symposium on Geodesy and Physics of the Earth focus onfour topics: - Present Day Tectonic Motions - Gravity Field and its Variation - Earth Rotation Characteristics - International Programs for Geodesy and Geodynamics Researchers and advanced students may use this volume as a comprehensive reference of concepts, techniques and results.
Author : Thomas J. Ahrens
Publisher : American Geophysical Union
Page : 384 pages
File Size : 47,7 Mb
Release : 1995
Category : Electronic books
ISBN : 9780875908519
A standard reference that provides, in accessible form, selected critical data for professional and student solid Earth and planetary geophysicists. It represents the third version of the popular "Handbook of Physical Constants" (the first was published in 1942, the second in 1966). The present version reflects the enormous growth of scientific knowledge of the Earth and planets since 1966, spurred by the discovery and verification of plate tectonics and the systematic exploration of the solar system. Annotation copyright by Book News, Inc., Portland, OR.
Author : J. W. Ryan
Publisher : Unknown
Page : 484 pages
File Size : 52,7 Mb
Release : 1993
Category : Earth (Planet)
ISBN : UCSD:31822025380189
Author : Anonim
Publisher : Unknown
Page : 236 pages
File Size : 45,8 Mb
Release : 1994
Category : Electronic
ISBN : NASA:31769000732407
Author : Ivan I. Mueller,Barbara Kolaczek
Publisher : Springer Science & Business Media
Page : 446 pages
File Size : 53,5 Mb
Release : 2013-12-01
Category : Science
ISBN : 9789401117111
In this review talk, I would like to report on the proper motion analysis, which has been recently carried out together with M. Soma and M. Yoshizawa: There has been a persistent demand in astronomy for accurate stellar positions and proper motions, which are represented by an inertial reference system constructed on the basis of a set of consistent astronomical constants. In the reference system the precessional constant plays a primary role. In a series of papers Fricke (1967a,b, 1977a,b) has deter mined the luni-solar precessional correction to Newcomb's value and the fictitious motion of the equinox, which have been adopted in the "IAU (1976) System of Astronomical Con stants". Based on the precessional correction and the equinoctial motion thus established, the fundamental reference system, the FK5 system (Fricke et al. 1988) for positions and proper motions, has been constructed. However, for several years geodetic VLBI (McCarthy & Luzum 1991) and LLR (Williams et at. 1991) observations have been suggesting an additional correction to the luni-solar precessional constant of the IAU (1976) System. That is, these observations indicate the precessional correction of 6. p ~ -0:'30/cent to the FK5 system. But, the observational period ofthe earth orientation is considered to be still insufficient to separate unambiguously the precessional change of the earth orientation from the nutation with the longest period of 18. 6 years.
Author : C. Ma,J. W. Ryan
Publisher : Unknown
Page : 214 pages
File Size : 40,6 Mb
Release : 1987
Category : Earth
ISBN : NASA:31769000573512
The Goddard VLBI group reports the results of analyzing 361 Mark III VLBI data sets from fixed observatories through the end of 1985 which are available to the Crustal Dynamics Project. All POLARIS/IRIS full-day data sets are included. The mobile VLBI sites at Platteville, Colorado; Penticton, British Columbia; and Yellowknife, Northwest Territories are also included since these occupations bear on the study of plate stability. Two large solutions, GLB027 and GLB028, were used to obtain site/baseline evolutions and Earth rotation parameters, respectively. Source positions and nutation offsets were also adjusted in each solution. The results include 23 sites and 101 baselines.
