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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>SEA ICE-75. ICE DETECTION BY SLAR</title>
      <link>https://trid.trb.org/View/57069</link>
      <description><![CDATA[The theoretical background, types of side looking airborne radar (SLAR) systems with their specifications, properties and limitations are described.  The "slar" images are interpreted; these were obtained during survey flights over the Bothnia Gulf.  Actual interpretation is based on a comparison with aerial photographs, taken during the same period.]]></description>
      <pubDate>Mon, 30 Jan 1978 00:00:00 GMT</pubDate>
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      <title>SEA ICE-75. DYNAMICAL REPORT</title>
      <link>https://trid.trb.org/View/57067</link>
      <description><![CDATA[Field measurements on sea ice was carried out in the Bay of Bothnia during March 10-20, 1975.  The forces and parameters in the equation of motion for sea ice have been studied on the Mesoscale.  Winds and currents were measured to calculate the wind and water stress, the ice mass distribution was studied, the tilting of the sea surface computed, vertical temperature and salinity soundings in the water made and surface temperatures at different ice types measured.]]></description>
      <pubDate>Mon, 30 Jan 1978 00:00:00 GMT</pubDate>
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      <title>SEA ICE-75. ANALYSIS OF "SLAR" DATA</title>
      <link>https://trid.trb.org/View/57066</link>
      <description><![CDATA[The purpose of this report is to present results, obtained from the analysis of "slar" (side-looking airborne radar) data.  This experiment was conducted in the Bay of Bothnia during March, 1975.  In an effort to help explain and understand some of the results, included are sections on the formation of sea ice and its relevant characteristics, the nature of radar return from sea ice, and sea ice parameters of interest.]]></description>
      <pubDate>Mon, 30 Jan 1978 00:00:00 GMT</pubDate>
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      <title>SEA ICE-75. RADAR ALTIMETER RESULTS</title>
      <link>https://trid.trb.org/View/57072</link>
      <description><![CDATA[The report describes the results obtained at a field test on sea-ice mapping by radar altimetry.  The experiment was carried out in the Gulf of Bothnia, March 1975.]]></description>
      <pubDate>Mon, 30 Jan 1978 00:00:00 GMT</pubDate>
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      <title>SEA ICE-75. FLAR, ODAR SHIP'S RADAR</title>
      <link>https://trid.trb.org/View/57070</link>
      <description><![CDATA[The report describes results from a field test on sea ice mapping by radar in the Gulf of Bothnia, March 1975.  Three different types of radar were used: forward looking Airborne Search Radar (FLAR), Omnidirectional Helicopterborne Search Radar (ODAR) and Shipborne Radars of the Icebreaker "TOR".]]></description>
      <pubDate>Mon, 30 Jan 1978 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/57070</guid>
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      <title>SEA-ICE 75. GROUND TRUTH REPORT</title>
      <link>https://trid.trb.org/View/57068</link>
      <description><![CDATA[A remote sensing project over sea ice was carried out between March 10 and 20, 1975.  Several sensors, microwave, visual and infrared, were tested.  Simultaneously an extensive ground truth work was carried out.  This report gives information on all ground truth data including the satellite and air photo information.]]></description>
      <pubDate>Mon, 30 Jan 1978 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/57068</guid>
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      <title>SEA ICE-75. IR-SCANNER RESULTS</title>
      <link>https://trid.trb.org/View/57071</link>
      <description><![CDATA[The field experiment in the Gulf of Bothnia has shown that thermal infrared sensing can be used to differentiate ice from water and new ice from old, thicker ice.  Special features, such as rafting patterns, ridges and cracks, are correlated to thermal variations and can be detected and identified in the thermal image.]]></description>
      <pubDate>Mon, 30 Jan 1978 00:00:00 GMT</pubDate>
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      <title>SEA ICE-75. SUMMARY REPORT</title>
      <link>https://trid.trb.org/View/57073</link>
      <description><![CDATA[The report summarizes results and conclusions from the project "Sea Ice 75"--A field experiment aimed at evaluating the capability of remote sensing techniques for surveillance and mapping of sea ice in the Bay of Bothnia.]]></description>
      <pubDate>Mon, 30 Jan 1978 00:00:00 GMT</pubDate>
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