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An applied climatology of low visibility over the coastal waters of New Hampshire and southern Maine
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2009
[PDF-1.15 MB]
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Description:"An applied climatology of low visibility has been developed for the coastal waters of southern Maine and New Hampshire. Low visibility, defined as 450 meters (1/4 nautical miles (NM)) or less, can pose a significant hazard to marine operations. An examination of low visibility over the coastal waters of southern Maine and New Hampshire was performed using hourly observations from selected Gulf of Maine Ocean Observing System (GoMOOS) buoys in the Gray, ME (GYX) coastal waters for the period 2001 through 2007. From these data, frequency distributions and composite maps were constructed. The highest percentage of hourly observations with low visibility occurred across the coastal waters of central Maine, with the lowest percentage across the coastal waters of New Hampshire. A south to southeast wind was favored for low visibility at all buoy locations. July had the highest number of low visibility observations at all buoy locations, with a general maximum occurring June through August. This coincides with the highest dew point temperatures of the year over the coastal waters. For GoMOOS buoys closer to shore, the number of hourly observations with visibilities of 450 meters or less reached a minimum in the late afternoon and early evening. The maximum occurred just before sunrise. For GoMOOS buoys further offshore, the differences between the maximum and minimum were less distinct"--Abstract.
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Content Notes:James C. Hayes.
"December 2009."
Includes bibliographical references (pages 7-8).
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Rights Information:Public Domain
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