scholarly journals Normal mode dispersion and time warping in the coastal ocean

2019 ◽  
Vol 146 (3) ◽  
pp. EL205-EL211 ◽  
Author(s):  
Oleg A. Godin ◽  
Boris G. Katsnelson ◽  
Tsu Wei Tan
Keyword(s):  
Normal Mode ◽  
Coastal Ocean ◽  
Time Warping ◽  
Mode Dispersion

Leaking and normal modes as a means to determine crust-upper mantle structure for different paths to Sweden

1969 ◽  
Vol 59 (4) ◽  
pp. 1695-1712
Author(s):  
Abou-Bakr K. Ibrahim
Keyword(s):  
Normal Mode ◽  
Upper Mantle ◽  
Structural Model ◽  
Normal Modes ◽  
Mantle Structure ◽  
S Waves ◽  
Kurile Islands ◽  
Mode Dispersion ◽  
Upper Mantle Structure ◽  
Wave Trains

Abstract By using the leaking and normal mode dispersion curves, the average crustal and upper mantle structure is determined for seven different paths. The paths originate from earthquakes in Greece, Turkey, West Pakistan, Tibet, Kamchatka, Kurile Islands and Mexico. Records from Uppsala and Umeå, Sweden, are used. The characteristics of the leaking modes at different distances are examined. Surface waves are used to put more constraint on the models chosen using only the leaking wave data and to verify their mode of propagation. A good fit for observational data of both the leaking mode (PL or PLH2) and the normal mode (Rayleigh) is found to one model for each path. The average crustal structures from Greece and Turkey to Uppsala are identical. The crustal and upper mantle models for paths from Tibet, West Pakistan, Kamchatka and Kurile Islands have approximately the same velocities but different crustal thicknesses. The dispersion characters of Mexican and North American paths are similar, while the average crustal thickness for the Asiatic paths is 5-15 km greater than for the Mexican path. Since the dispersions of the leaking and normal modes are explained by one and the same structural model, it indicates that our hypothesis about the propagation of the leaking waves is true, and that a substantial portion of the long-period wave trains between the P and S waves can be explained in terms of these leaking modes.

Effect of a soft sediment layer over elastic basement on normal mode dispersion

2019 ◽  
Vol 145 (3) ◽  
pp. 1672-1672
Author(s):  
Gopu R. Potty ◽  
James H Miller ◽  
Julien Bonnel
Keyword(s):  
Normal Mode ◽  
Sediment Layer ◽  
Soft Sediment ◽  
Mode Dispersion ◽  
Elastic Basement

The Nusayris in Medieval Syria

2018 ◽  
Author(s):  
Stefan Winter
Keyword(s):  
Normal Mode ◽  
Early Development ◽  
A Priori ◽  
Medieval Period ◽  
Historical Sources

This chapter re-examines the early development of the ʻAlawi community and its situation in western Syria in the medieval period in the wider context of what might be termed Islamic provincial history. It starts from the premise that the conventional image of the “Nusayris” has largely been fashioned by elite historical sources whose discourse on nonorthodox groups is a priori negative but which, when read against the grain and compared with other sources, can yield a less essentializing, less conflicting account of the community's development. In particular, the chapter aims to show that the ʻAlawi faith was not the deviant, marginal phenomenon it has retrospectively been made out to be but, on the contrary, constituted, and was treated by the contemporary authorities as, a normal mode of rural religiosity in Syria.

Tidal influence on the sea-to-air transfer of CH4in the coastal ocean

Tellus B ◽  
2006 ◽  
Vol 58 (1) ◽  
Author(s):  
Doshik Hahm ◽  
Guebuem Kim ◽  
Yong-Woo Lee ◽  
Sungh-Yun Nam ◽  
Kyung-Ryul Kim ◽  
...  
Keyword(s):  
Coastal Ocean ◽  
Tidal Influence
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