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Ocean tides from TOPEX/POSEIDON alti...

Desai, Shailen Dinubhai.

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Ocean tides from TOPEX/POSEIDON altimetry with some geophysical applications.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Ocean tides from TOPEX/POSEIDON altimetry with some geophysical applications./
Author:	Desai, Shailen Dinubhai.
Description:	234 p.
Notes:	Source: Dissertation Abstracts International, Volume: 57-04, Section: B, page: 2425.
Contained By:	Dissertation Abstracts International57-04B.
Subject:	Geodesy. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9628539

Ocean tides from TOPEX/POSEIDON altimetry with some geophysical applications.
Desai, Shailen Dinubhai.

Ocean tides from TOPEX/POSEIDON altimetry with some geophysical applications. - 234 p.

Source: Dissertation Abstracts International, Volume: 57-04, Section: B, page: 2425.

Thesis (Ph.D.)--University of Colorado at Boulder, 1996.

A competitive state-of-the-art empirical ocean tide model for the diurnal, semidiurnal, monthly, and fortnightly ocean tides is estimated from almost three years of TOPEX/POSEIDON (T/P) altimetric data. This ocean tide model is then used to predict the contributions of the ocean tides to tidal variations in the rotation of the Earth. Comparisons of the presented T/P ocean tide model to tide gauge observations and a proposed error analysis both indicate accuracies of the model to be of the order 2-3 cm. Application of the predicted contribution of the monthly and fortnightly ocean tides to observed variations of the Earth's rotation rate provide preliminary estimates of the anelasticity of the Earth's mantle at the monthly and fortnightly periods which are consistent with observations of mantle anelasticity at the Chandler wobble period, but are not consistent with observations of mantle anelasticity at the 18.6 year period.Subjects--Topical Terms:

550741
Geodesy.

Ocean tides from TOPEX/POSEIDON altimetry with some geophysical applications.
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008 130610s1996 eng d
035 $a (UnM)AAI9628539
035 $a AAI9628539
040 $a UnM $c UnM
100 1 $a Desai, Shailen Dinubhai. $3 1918595
245 1 0 $a Ocean tides from TOPEX/POSEIDON altimetry with some geophysical applications.
300 $a 234 p.
500 $a Source: Dissertation Abstracts International, Volume: 57-04, Section: B, page: 2425.
500 $a Director: John M. Wahr.
502 $a Thesis (Ph.D.)--University of Colorado at Boulder, 1996.
520 $a A competitive state-of-the-art empirical ocean tide model for the diurnal, semidiurnal, monthly, and fortnightly ocean tides is estimated from almost three years of TOPEX/POSEIDON (T/P) altimetric data. This ocean tide model is then used to predict the contributions of the ocean tides to tidal variations in the rotation of the Earth. Comparisons of the presented T/P ocean tide model to tide gauge observations and a proposed error analysis both indicate accuracies of the model to be of the order 2-3 cm. Application of the predicted contribution of the monthly and fortnightly ocean tides to observed variations of the Earth's rotation rate provide preliminary estimates of the anelasticity of the Earth's mantle at the monthly and fortnightly periods which are consistent with observations of mantle anelasticity at the Chandler wobble period, but are not consistent with observations of mantle anelasticity at the 18.6 year period.
520 $a Tide gauge comparisons show that the T/P models have improvements of 19 cm $\ sp2 $ over the Schwiderski (1980a, b) hydrodynamic model, and 16 cm $\ sp2 $ over the Cartwright and Ray (1991) ocean tide model estimated from Geosat GEM-T2 altimetric data. The T/P derived ocean tide models also remove approximately 20-30 cm $\ sp2 $ more of the T/P measured sea surface variance than the Cartwright and Ray (1991) ocean tide model. Redefining the diurnal admittance function to account for the free core nutation resonance improves the diurnal ocean tide models, particularly at the K $\ sb1 $ tidal component, where the tide gauge variance is reduced by 4 mm $\ sp2 $ more than when the free core nutation resonance is ignored. The monthly and fortnightly ocean tides estimated from the presently available T/P data continue to improve as more data are included into the estimates, but present estimates of the fortnightly ocean tide already show improvements of 4.6 mm $\ sp2 $ over the Schwiderski (1980a, b) model, when compared to tide gauge observations.
590 $a School code: 0051.
650 4 $a Geodesy. $3 550741
650 4 $a Geophysics. $3 535228
650 4 $a Engineering, Aerospace. $3 1018395
650 4 $a Remote Sensing. $3 1018559
690 $a 0370
690 $a 0373
690 $a 0538
690 $a 0799
710 2 0 $a University of Colorado at Boulder. $3 1019435
773 0 $t Dissertation Abstracts International $g 57-04B.
790 1 0 $a Wahr, John M., $e advisor
790 $a 0051
791 $a Ph.D.
792 $a 1996
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9628539