Publication Date:
2021-05-19
Description:
Sea level and currents in “Boca del Guafo” and Moraleda channel are studied using statististical and Fourier (harmonic) analyses. The data were collected using oceanographic instruments that covered a wide geographical area, from the northern most point of Moraleda channel to Darwin channel.
The results of the harmonic analysis indicated that the area has a semidiurnal tide with a 12-minute phase shift between the ports of Melinka and Lagunas. This result shows that the tidal wave does not only propagate along the Moraleda channel, but at the same time enters the region through several transversal channels that connect the Pacific Ocean with the Moraleda channel.
Along the main channel (Moraleda) no reverse current was recorded, which is an unusual characteristic for the channels and inlets in the Chilean Inland Seas. The main reason for this unexpected behavior is due to the fact that currents are also forced by long period disturbances that could be related to meteorological processes.
The maximum currents recorded were 66.5 cm/s and 53.7 cm/s at stations SHOA-2 and SHOA-1, respectively.
Description:
Published
Keywords:
Tides
;
Ocean currents
;
Sea level
;
Tides
;
Ocean currents
;
Channels
;
Current velocity
;
Sea level
Repository Name:
AquaDocs
Type:
Journal Contribution
Format:
368719 bytes
Format:
application/pdf
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