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R/V Ronald H. Brown Daily Summaries

Select a cruise day 2004 07 05 2004 07 06 2004 07 07 2004 07 08 2004 07 09 2004 07 10 2004 07 11 2004 07 12 2004 07 13 2004 07 14 2004 07 15 2004 07 16 2004 07 17 2004 07 18 2004 07 19 2004 07 20 2004 07 21 2004 07 22 2004 07 23 2004 07 24 2004 07 25 2004 07 26 2004 07 27 2004 07 28 2004 07 29 2004 07 30 2004 07 31 2004 08 01 2004 08 02 2004 08 03 2004 08 04 2004 08 05 2004 08 06 2004 08 07 2004 08 08 2004 08 09 2004 08 10 2004 08 11 2004 08 12

Cruise Day 20040727

Map:

Met:

Early AM on July 27 RHB sailed a track just north of Cape ANN towards the NH coast. The reverse track put RHB just off the tip of Cape Anne about 10:00 AM, local. After launching an ozone sonde the ship turned SSE and encountered a series of small ship plumes. About 11:00 AM local the ship encountered a large power plant plume, which took three hours to traverse. The plume was clearly aged with clear ozone, SO2, NOY, and sulfate signals. After exiting the plume, several attempts were made to sample the plume from RHB before heading back to the Isles of Shoals for an intercomparison with the insitu and long path instruments located there.

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