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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>
    <docs>http://blogs.law.harvard.edu/tech/rss</docs>
    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
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      <title>Transport Research International Documentation (TRID)</title>
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      <title>OCEANOGRAPHIC OBSERVATIONS, NORTH ATLANTIC OCEAN STATION DELTA, 26 AUGUST 1968-26 AUGUST 1969</title>
      <link>https://trid.trb.org/View/62298</link>
      <description><![CDATA[Oceanographic data from fifteen cruises on Ocean Station DELTA (44 degrees N, 41 degrees W) during the period August 1968 to August 1969 are presented. These data consist of observed and interpolated temperatures and salinities from 257 shallow and 11 deep casts. Analysis of the data on OS DELTA indicates that the North Atlantic Current intrudes on OS DELTA during most of the year. Temperature-salinity (T-S) curves and salinity anomaly analysis are given.]]></description>
      <pubDate>Sun, 03 Nov 2002 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/62298</guid>
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      <title>AN OVERVIEW OF REMOTE SENSING OCEANOGRAPHY IN THE UNITED STATES</title>
      <link>https://trid.trb.org/View/89032</link>
      <description><![CDATA[Surface radars for real-time mapping of ocean currents over regions up to 70-km offshore, aircraft using laser and radar systems for wave profiling and one-dimensional spectra, and the anticipated products from the TIROS-N satellite system are emphasized in this paper.]]></description>
      <pubDate>Sun, 15 Sep 2002 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/89032</guid>
    </item>
    <item>
      <title>ON THE EVALUATION OF COMPUTER INTERPOLATED OCEANOGRAPHIC DATA</title>
      <link>https://trid.trb.org/View/42577</link>
      <description><![CDATA[A Digital Equipment Corporation PDP-5 computer was used by the Coast Guard during International Ice Patrol 1964 for the preparation of oceanographic dynamic topography charts. As programed, the computer interpolated observed data to standard depths using 3-point Lagrange parabolic polynomials above and below the desired depth. This resulted in the visual presentation of 3 possible data values which included the average of the two polynomial points. An oceanographer then decided on the best value to select for dynamical computations at each level while the program was operating. In order to provide a measure of confidence in the average value a rapid point evaluation system was developed. A total allowable error in dynamic height for a station was fixed and proportioned over the standard depths. The average value was automatically chosen when the differences in the polynomial values were within the set error tolerance. Those depths whose values were outside of the tolerance were referred to segments of hand drawn vertical property distribution curves for evaluation. Very reliable data was obtained with a built in estimation of the errors involved.]]></description>
      <pubDate>Mon, 22 Jul 2002 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/42577</guid>
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    <item>
      <title>OPERATIONAL NOTES ON A SHIPBOARD COMPUTER</title>
      <link>https://trid.trb.org/View/42578</link>
      <description><![CDATA[A high speed solid state digital computer has been tested and evaluated for use in reducing oceanographic data at sea. Testing took place aboard a Coast Guard vessel for a period of seven months in which the computer was subject to various stresses. The results of these tests and the usefulness of the computer programs indicate that advantages are gained in the speed, accuracy, and precision in which oceanographic data can be evaluated.]]></description>
      <pubDate>Mon, 22 Jul 2002 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/42578</guid>
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    <item>
      <title>CURRENT RESEARCH ACTIVITIES OF THE DEPARTMENT OF OCEANOGRAPHY</title>
      <link>https://trid.trb.org/View/42518</link>
      <description><![CDATA[;Contents: Dynamics and thermodynamics of the upper ocean; Planetary-scale oceanic processes; Meso-scale oceanic processes; Small-scale physical processes; Coastal dynamics, upwelling, and downwelling; Estuarine processes; Sediment transport; Marine stratigraphy; Coastal and shelf sedimentology; Micropaleontology of sediments; Global tectonics; Genesis of the ocean crust; Analytical chemistry of seawater; Chemical indicators of oceanographic processes; Chemical controls and consequences of biological-biochemical processes; Kinetics and thermodynamics of chemical, biochemical, and geochemical processes; Marine geochemical studies; Chemical studies of marine environments; Biome studies and marine ecosystems analysis; Plankton production; Benthic production; Biology of marine organisms; Biogeography and taxonomy; Marine acoustics; Marine resource development; Applications of oceanography.]]></description>
      <pubDate>Sat, 13 Jul 2002 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/42518</guid>
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      <title>AN INQUIRY INTO THE FEASIBILITY OF USING OCEAN SURFACE WAVE ENERGY TO POWER AN OCEANOGRAPHIC DATA COLLECTION BUOY</title>
      <link>https://trid.trb.org/View/41334</link>
      <description><![CDATA[A brief history of attempts to use ocean surface wave energy is presented and applicable wave theory is reviewed. Six distinct modes of interaction between a wave and a buoy are defined. These are evaluated by deriving expressions for the maximum power realizable from each and by considering how the use of each would affect buoy functioning. Those modes involving the buoy's reaction to the rise and fall of the ocean surface and the use of the fluctuating pressure field beneath a wave train are selected for further study. A buoy motion analysis supplemented by limited experimentation into linear damping coefficients is presented in connection with the first of these. Conceptual-level conversion system designs are proposed and compared with other power systems adaptable to buoy use in terms of their energy densities and specific costs and by subjective consideration of their adaptability to long-term unattended use in the ocean.]]></description>
      <pubDate>Sun, 23 Jun 2002 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/41334</guid>
    </item>
    <item>
      <title>OCEANOGRAPHY OF THE NEW YORK BIGHT, AUGUST 1974</title>
      <link>https://trid.trb.org/View/63666</link>
      <description><![CDATA[The physical oceanography of the shelf and slope waters of the New York Bight (Block Island to Cape May) in August of 1974 is described. Temperature, salinity, and density data, presented in surface contours and section profiles, showed the shelf/slope front, a cold core on the shelf, and a salinity core on the slope. Geostrophic currents in the slope water were inferred from the density structure, and showed two anticyclonic eddies with maximum geostrophic velocities of approximately 40 cm. Temperature and salinity profiles indicated shelf/slope mixing related to the eddies.]]></description>
      <pubDate>Fri, 15 Mar 2002 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/63666</guid>
    </item>
    <item>
      <title>THE ANALYSIS OF SEDIMENT SAMPLES FOR HYDROCARBONS</title>
      <link>https://trid.trb.org/View/143641</link>
      <description><![CDATA[This document is a report on the hydrocarbon content of 1380 individual surficial samples obtained from areas in the vicinity of three proposed Deep Water Port (DWP) Sites in the Gulf of Mexico during six cruises taken between 1975 and 1978. The samples were analyzed using 2 different LC-fluorescent methods, one of which was selective for petrogenic hydrocarbons and one of which detected both petrogenic and biogenic hydrocarbons. Additionally, nutrient chemical analyses and microbiological analyses were performed on sediment obtained during the first two cruises. All data were evaluated statistically and discussed in terms of sources of inputs, effect on season, and significance for formulating an overall monitoring program for the DWP sites. The results of this study suggest that analysis for both petrogenic and biogenic hydrocarbons should be undertaken in order to more accurately reflect the sources of seasonal variation in hydrocarbon levels at sites of interest. A method of displaying the data is illustrated and discussed. It allows rapid comparisons of the hydrocarbon content of sediments from the various stations. (Author)]]></description>
      <pubDate>Tue, 15 Jan 2002 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/143641</guid>
    </item>
    <item>
      <title>FISHING VESSELS PERFORMING OCEANOGRAPHIC SURVEYS</title>
      <link>https://trid.trb.org/View/480238</link>
      <description><![CDATA[The article discusses fishing vessels in New England, USA performing oceanographic surveys.  For a modest investment for conversion and equipment, a typical New England fishing vessel can be converted to a part-time research vessel capable of carrying out a wide variety of such activities.  In addition, many of the skills required by fishing vessel captains are easily adapted to oceanographic survey operations including station keeping, slow speed towing, and equipment handling operations.]]></description>
      <pubDate>Thu, 27 Mar 1997 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/480238</guid>
    </item>
    <item>
      <title>RESPONSE BASED DESIGN CONDITIONS IN THE NORTH SEA: APPLICATIONS OF A NEW METHOD</title>
      <link>https://trid.trb.org/View/457027</link>
      <description><![CDATA[The estimation of rare, extreme environments from a relatively short oceanographic database is crucial to the calculation of loads and responses of offshore structures.  A novel and consistent approach has been developed that makes use of a number of asymptotic properties of extremes.  A storm can be adequately characterised by its most probable extreme wave or the resultant structural response.  This allows storms, rather than sea states, to be treat as the essential random, independent events; to account correctly for uncertainty in the largest wave and structural response within a storm; and to deal with the uncertainty in the severity of randomly arriving storms, including the rare storms that are more severe than those in the databases.  The method provides the long term load statistics essential to reliability analysis and to the calibration of environmental load factors in design codes.  The application of the method to the prediction of extreme waves, loads and "response based" environmental design conditions for a drag dominated structure in the North Sea is demonstrated.]]></description>
      <pubDate>Wed, 27 Mar 1996 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/457027</guid>
    </item>
    <item>
      <title>DEEP WATER CHALLENGES</title>
      <link>https://trid.trb.org/View/456026</link>
      <description><![CDATA[The article examines the oil-industry's moving off the continental shelf to deeper water and new oceanographic data-gathering challenges.]]></description>
      <pubDate>Mon, 04 Mar 1996 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/456026</guid>
    </item>
    <item>
      <title>ANTI-SUBMARINE RESEARCH IN ATLANTIC</title>
      <link>https://trid.trb.org/View/432502</link>
      <description><![CDATA[No abstract provided.]]></description>
      <pubDate>Mon, 14 Aug 1995 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/432502</guid>
    </item>
    <item>
      <title>ANALYTICAL AND PHYSICAL MODELLING OF A FREE-FALL OCEANOGRAPHIC VEHICLE</title>
      <link>https://trid.trb.org/View/433109</link>
      <description><![CDATA[Free-fall vehicles have gained widespread acceptance as a means by which small scale fluctuations in ocean characteristics such as the temperature and salinity gradients can be accurately profiled.  Although these vehicles are used by a large number of programs doing basic and applied research for the Navy, the dynamic characteristics of their free-fall descent are not well understood.  This makes the interpretation of some aspects of the recorded data uncertain.  Also, there is no framework to guide the preliminary design of new vehicles to optimise their performance.  In this work, a numerical time domain solution of the equations of motion for predicting the fall dynamics of a free-fall vehicle is developed, and a correlation study based on experimental data obtained from physical model wind tunnel tests, limited in situ data, and the analytical model are presented.]]></description>
      <pubDate>Mon, 14 Aug 1995 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/433109</guid>
    </item>
    <item>
      <title>AMBIENT SOUND AT THE ICE EDGE</title>
      <link>https://trid.trb.org/View/435385</link>
      <description><![CDATA[A programme of theoretical and experimental research is currently being conducted into the mechanisms responsible for generating ambient noise in the Greenland Sea. Sonobuoys and AXBTs have been dropped from a fixed-wing (BAC1-11) aircraft into the marginal ice zone (MIZ) in two areas off the east coast of Greenland in the vicinities of the Denmark Strait and the Fram Strait. Some sensors have been deployed deep in a fjord, close to the tongue of a large glacier, but most deployments have been close to the ice edge forty or more kilometres from the coast. Below 200 Hz the spectral levels of the noise in the Greenland Sea are usually observed to be relatively insensitive to sea-surface conditions, with no maximum in the level at the ice edge. The main feature in most of the low-frequency spectra is a pronounced peak at approximately 20 Hz whose origin is uncertain. It is suspected that the stick-slip motion of glaciers over bedrock as they descend from the Greenland ice cap to sea level is the principal contributor to the low-frequency noise in the Nordic Seas.]]></description>
      <pubDate>Mon, 14 Aug 1995 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/435385</guid>
    </item>
    <item>
      <title>LOW-FREQUENCY SOURCES OF AMBIENT NOISE IN THE SEA</title>
      <link>https://trid.trb.org/View/435386</link>
      <description><![CDATA[The increasing interest over recent years in generation and propagation of low-frequency underwater sound is in particular based on a more wide-spread use of low frequency acoustic signals for active detection of underwater vehicles, for low-frequency underwater tomography, for geophysical exploration and ocean bottom studies etc. The exploration of low-frequency sound for these activities are frequently impeded by the presence of low-frequency ambient noise produced by a broad variety of sources, like seismic activities, surface waves, wind, bubbles, precipitation, large scale turbulence, biological effects, ice, shipping, off-shore activities etc., producing sound in the frequency range from below 1Hz to several hundred.]]></description>
      <pubDate>Mon, 14 Aug 1995 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/435386</guid>
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