Open AccessDynamical Computation of the Equatorial Current System of the Pacific, with Special Application to the Equatorial Undercurrent
Author(s) -
Hidaka Koji,
Nagata Yutaka
Publication year - 1958
Publication title -
geophysical journal of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0016-8009
DOI - 10.1111/j.1365-246x.1958.tb00053.x
Subject(s) - equator , geology , current (fluid) , pressure gradient , geodesy , mixing (physics) , wind stress , geophysics , amplitude , computation , constant (computer programming) , climatology , latitude , oceanography , physics , mathematics , algorithm , quantum mechanics , computer science , programming language
Summary The currents near the equator are treated by solving the dynamical equations for the steady‐state involving terms of Coriolis force, pressure gradient, and horizontal and vertical mixing. The coefficients of horizontal and vertical mixing are estimated at 10 8 and 10 2 c.g.s. respectively and are constant everywhere. The distribution of mean wind‐stress and mean pressure are computed from observed data. The result shows an eastward current below the surface near the equator, and it seems to give an explanation of the equatorial undercurrent.