Document Type

Article

Publication Date

1983

DOI

10.1029/JC088iC08p04730|

Publication Title

Journal of Geophysical Research: Oceans

Volume

88

Issue

C8

Pages

4730-4738

Abstract

We have analyzed 8 years of wind and salinity data from a frontal zone in a region of the inner continental shelf off the southeastern United States. The changes in low‐salinity water stored in the frontal zone have been parameterized by analyzing the monthly rate of change in freshwater content. When the rate of change in freshwater content was negative, we interpreted this as a loss of low‐salinity water from the frontal zone. When this parameter was compared with seasonally averaged alongshore wind stress, the rate of loss was independent of the alongshore wind stress magnitude until threshold of about 0.1 dyne cm−2 was reached. Above the threshold there was a clear relationship between northward alongshore wind stress and rate of loss of freshwater from the inner shelf. Experimental evidence suggests that horizontal currents in the inner‐shelf frontal zone have cyclonic shear with increasing depth. When wind stress is northward and offshore, near‐surface low‐salinity water is transported offshore by Ekman transport while near‐bottom high‐salinity water is transported shoreward.

Comments

© American Geophysical Union

"AGU allows authors to deposit their journal articles if the version is the final published citable version of record, the AGU copyright statement is clearly visible on the posting, and the posting is made 6 months after official publication by the AGU."

Original Publication Citation

Blanton, J., & Atkinson, L. (1983). Transport and fate of river discharge on the continental shelf of the southeastern United States. Journal of Geophysical Research: Oceans, 88(C8), 4730-4738. doi:10.1029/JC088iC08p04730|

ORCID

0000-0003-2919-100X (Atkinson)

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Oceanography Commons

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