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|Title:||Seafloor temperature and conductivity data from coastal waters of the U.S. Beafort Sea|
|Authors:||United States. Dept. of Energy.|
Geological Survey (U.S.)
Sellmann, P. V. (Paul V.)
Kempema, Edward W.
|Publisher:||Cold Regions Research and Engineering Laboratory (U.S.)|
Engineer Research and Development Center (U.S.)
|Series/Report no.:||CRREL report ; 89-1.|
Abstract: Important and unique seabed engineering properties and conditions observed on the shallow shelf of the Beaufort Sea may be caused by low temperatures and variable salinities of bottom waters. A year-long monitoring program was initiated during the fall of 1985 to make daily measurements of these parameters using small, self-contained, low-cost instrumentation units placed on the seabed in four locations. The four sites selected were in areas where overconsolidated sediments, seasonal seabed freezing and shallow ice-bonded permafrost are known to occur. The instruments were recovered during the fall of 1986; three units contained useful data. The longest record was 341 days at station 8 in outer Harrison Bay. Seabed temperatures above 0°C, for the period of record, occurred only 15 days at one site and 13 days at another. The mean annual temperatures for these sites were -1.55°C and -1.60°C. Estimates of the onset of seabed freezing suggest that the seabed can freeze on all but 82 days of the year.
|Appears in Collections:||CRREL Report|