Download e-book for iPad: Estuarine Comparisons. Proceedings of the Sixth Biennial by Dr. Victor S. Kennedy

By Dr. Victor S. Kennedy

ISBN-10: 0124040705

ISBN-13: 9780124040700

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Read Online or Download Estuarine Comparisons. Proceedings of the Sixth Biennial International Estuarine Research Conference, Gleneden Beach, Oregon, November 1–6, 1981 PDF

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Additional resources for Estuarine Comparisons. Proceedings of the Sixth Biennial International Estuarine Research Conference, Gleneden Beach, Oregon, November 1–6, 1981

Example text

There was considerable variability in salinity with periods of less than 20 min visible in the S T D records (Fig. 5) and in many instances the salinities corresponding to those obtained by the 20 min profiles were not good representations of the mean values. Much of this variability was due to internal waves. 5 m and they have been interpreted as due to lateral inter­ nal seiching (Dyer 1982). However, there are many broader features that persist from one tide to another, undergoing progressive modification.

It is also essential to select a sampling rate and a sampling density such that any errors are within acceptable limits. This usually requires a compromise between that which is optimal and that which is practical. Kjerfve et al. (1981) defined and considered the variation of a relative percentage error, γ, as sampling density varied. The computed fluxes were water, ammonium-nitrogen, and adenosine 5'-triphosphate ( A T P ) . In each case when a station was occupied, vertical velocity profiles were measured between the water surface and bottom at the same time that water samples were drawn from several depths.

Events A and Β are easily distinguished at both times, and were altered very little during the 3 days. However, the front of the main patch had been considerably degraded and water masses C and D were no longer distinguishable. The broad high salinity period between Events Β and Ε had been considerably eroded. 5°/oo. Consequently the front of the main patch was gradually becoming less steep, and even though the distance between Events Β and Ε were not altering, the low salin­ ity periods were lengthening as the two patches merged.

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Estuarine Comparisons. Proceedings of the Sixth Biennial International Estuarine Research Conference, Gleneden Beach, Oregon, November 1–6, 1981 by Dr. Victor S. Kennedy


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