The Longitudinal Diffusion Coefficient in the Delaware River Estuary as Determined From a Steady‐State Model

The Longitudinal Diffusion Coefficient in the Delaware River Estuary as Determined From a... An analytic solution of the one‐dimensional steady‐state diffusion equation for a conservative substance in an estuary of constant depth h in which the half‐width Y is related to the longitudinal distance x by the equation Y = αxμ may be found if the turbulentdiffusion coefficient Kx is given a general form Kx = KYϕ. Because the form of the diffusion coefficient allows 2 degrees of freedom in fitting the solution of the diffusion equation to data from a real estuary, it is possible to determine the magnitude of the diffusion coefficient as well as the effect, on the distribution of the conservative substance, of assuming a constant coefficient. Data from the reach of the Delaware estuary from Torresdale, Pennsylvania, to Reedy Island, Delaware, were used to test the solution, because fresh‐water inflow data are available for the reach, and its channel geometry satisfies the above requirement. This reach also contains five U. S. Geological Survey water‐quality monitors that provide salinity data to test the solution. Analysis of these data indicates that, for low fresh‐water inflow into the estuary, Kx is of the order of 100 meters squared per second and that for most operational purposes Kx may be assumed to be a constant. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Water Resources Research Wiley

The Longitudinal Diffusion Coefficient in the Delaware River Estuary as Determined From a Steady‐State Model

Water Resources Research, Volume 5 (1) – Feb 1, 1969

Loading next page...
 
/lp/wiley/the-longitudinal-diffusion-coefficient-in-the-delaware-river-estuary-w1rqz1Gc9Y
Publisher
Wiley
Copyright
This paper is not subject to U.S.Copyright © 1969 by the American Geophysical Union.
ISSN
0043-1397
eISSN
1944-7973
DOI
10.1029/WR005i001p00059
Publisher site
See Article on Publisher Site

Abstract

An analytic solution of the one‐dimensional steady‐state diffusion equation for a conservative substance in an estuary of constant depth h in which the half‐width Y is related to the longitudinal distance x by the equation Y = αxμ may be found if the turbulentdiffusion coefficient Kx is given a general form Kx = KYϕ. Because the form of the diffusion coefficient allows 2 degrees of freedom in fitting the solution of the diffusion equation to data from a real estuary, it is possible to determine the magnitude of the diffusion coefficient as well as the effect, on the distribution of the conservative substance, of assuming a constant coefficient. Data from the reach of the Delaware estuary from Torresdale, Pennsylvania, to Reedy Island, Delaware, were used to test the solution, because fresh‐water inflow data are available for the reach, and its channel geometry satisfies the above requirement. This reach also contains five U. S. Geological Survey water‐quality monitors that provide salinity data to test the solution. Analysis of these data indicates that, for low fresh‐water inflow into the estuary, Kx is of the order of 100 meters squared per second and that for most operational purposes Kx may be assumed to be a constant.

Journal

Water Resources ResearchWiley

Published: Feb 1, 1969

There are no references for this article.

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create folders to
organize your research

Export folders, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off