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    <title>Transport Research International Documentation (TRID)</title>
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    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
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    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
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      <title>CURRENTS AND CONTAMINANT DISPERSION IN THE NEARSHORE REGION AND MODIFICATION BY A JETPORT</title>
      <link>https://trid.trb.org/View/72582</link>
      <description><![CDATA[The steady-state and the time-dependent, constant density, wind-driven currents in the near-shore Cleveland area of Lake Erie, under present conditions and as modified by the proposed Lake Erie International Jetport, were calculated numerically.  Two specific jetport configurations were studied in detail: an island, and an island with causeway to shore.  Coupling procedures between the fine near-shore numerical grid and the coarse overall-lake grid were studied in detail and are presented here.  For the jetport configuration, several computations illustrating the dispersion of a contaminant from a point source into Lake Erie were made.  For the particular cases studied, it is shown that the island does not significantly modify the currents or contaminant dispersion while the island with a causeway to the shore does.  The near-shore numerical models presented here can be easily modified to study the near-shore dispersion in other large lakes.]]></description>
      <pubDate>Sun, 27 Aug 1978 00:00:00 GMT</pubDate>
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      <title>EXAMINATION OF THE ELUTRIATE TEST, A SCREENING PROCEDURE FOR DREDGING REGULATORY CRITERIA</title>
      <link>https://trid.trb.org/View/60876</link>
      <description><![CDATA[Water quality parameters were considered in a series of tests, including the Standard Elutriate Test designed to appraise the elutriate techniques.  Both the conditional stability constant and the complexing capacity of the elutriate were greater than those of background waters. Although the concentration of the Standard Elutriate can be greater than 1.5 times the original concentration for the four heavy metals considered (Zn, Hg, Pb, Cd), it may be still less than the standards for drinking water and fresh water or marine aquatic life.  Thus, such releases themselves should not significantly affect the water quality.  It appears that improvement of the existing dredging regulatory criteria concerning Hg, Pb, and Zn is desirable.  On the other hand, tests indicate that the release of phosphorus can be large and might significantly affect the water quality in actual open water disposal.]]></description>
      <pubDate>Tue, 07 Mar 1978 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/60876</guid>
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      <title>GREAT LAKES ICE THICKNESS PREDICTION</title>
      <link>https://trid.trb.org/View/60880</link>
      <description><![CDATA[Weekly ice thickness data, collected from 24 bay, harbor, and river sites on the Great Lakes, were correlated with freezing degree-day accumulations to develop regression equations between ice thickness and freezing degree-days. The data base at ice measurement sites was 3 to 8 winters in length.  The standard error of estimate varied for individual regression equations and averaged between 7 and 8 cm for five forms of regression equations.  Because the regression equations are empirical, the range of input data used to predict ice thickness should be limited to the range of values used in the derivation.]]></description>
      <pubDate>Tue, 07 Mar 1978 00:00:00 GMT</pubDate>
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      <title>IFYGL SHIPBOARD VISUAL WAVE OBSERVATIONS VS. WAVE MEASUREMENTS</title>
      <link>https://trid.trb.org/View/58842</link>
      <description><![CDATA[Shipboard meteorological observations, which include visual estimates of wave height and wave period, are made in the Great Lakes by over 100 ships from the United States and Canada. Data collected from these ship reports cover a wide range of lake conditions and hence provide a useful basis for climatological studies of surface waves in the Great Lakes.  The objective of this paper is to present an assessment of the reliability of these ship reports. Records from deep water wave gauges were compared with shipboard observations made within 50 km of the gauges. The results show that visually estimated wave heights, and wave periods are correlated with the recorded significant wave heights and average zero-crossing wave periods.  Visual observations appear to substantially underestimate the steepness of the waves.  Long-term distributions for wave heights and wave periods follow the log-normal distribution quite closely.  These results are generally similar to those of oceanic studies.]]></description>
      <pubDate>Sat, 29 Oct 1977 00:00:00 GMT</pubDate>
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      <title>STATISTICAL LIMITATIONS OF DOMESTIC AND INTERNATIONAL TRANSPORTATION OF UNITED STATES FOREIGN TRADE: 1970 (PUBLIC USE TAPES) WITH SPECIAL REFERENCE TO THE UNITED STATES GREAT LAKES REGION</title>
      <link>https://trid.trb.org/View/58821</link>
      <description><![CDATA[The research results reported in this paper are based on an analysis of a subset of the data contained on the Domestic and International Transportation of U.S. Foreign Trade: 1970 (Public Use Tapes) released by the Department of Commerce, Bureau of the Census in 1972.  A comprehensive review of the survey's sampling process reveals the limited usefulness of the data; the weighting scheme employed permitted very accurate estimates of critical characteristics of the population but resulted in intolerable sample variability when concerned with other characteristics for selected sub-populations.  This finding restricted efforts to a descriptive rather than an analytical reevaluation of the geographic region served by the Great Lakes in international shipping of general cargo.]]></description>
      <pubDate>Thu, 13 Oct 1977 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/58821</guid>
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