Ocean/Atmosphere Exchange of Trace Compounds

Project Description
The main goal of the NOAA/CMDL Ocean/Atmosphere Exchange of Trace Compounds
(OAXTC) 1992 study was to determine the atmospheric mixing ratio of
hydrochlorofluorocarbon 22 (HCFC-22) and its partial pressure in
surface waters of the West Pacific Ocean to assess the possible
existence of an oceanic sink for this compound.
The ship, John V. Vickers, started out of Long Beach, CA, and reached
Dutch Harbor, AK, one week later. The cruise continued to a point
offshore of Kamchatka, Russia, Kwajalein Atoll, Marshall Islands, and
finally ended in Noumea, New Caledonia, 12 weeks after it began.
CFC-11 (CCl3F), CFC-12 (CCl2F2), CFC-113 (CCl2FCClF2), methyl
chloroform (CH3CCl3), carbon tetrachloride (CCl4), nitrous oxide (N2O)
and HCFC-22 (CHClF2) were measured in the air and surface waters of
the Pacific Ocean between 55 deg N and 22 deg S during the late summer
and early fall of 1992. Atmospheric measurements of all gases agreed
well with results from NOAA fixed stations at similar latitudes.
References:
OAXTC 92: OCEAN / ATMOSPHERE EXCHANGE OF TRACE COMPOUNDS 1992, Oceanic
Measurements of HCFC-22, CFC-11, CFC-12, CFC-113, CH3CCl3, CCl4, and
N2O in the Marine air and Surface Waters of the West Pacific Ocean
(03. August to 21 October 1992), J.M. Lobert, J.H. Butler,
T.J. Baring, R.C. Myers, S.A. Montzka, J.W. Elkins NOAA Technical
Memorandum ERL CMDL-9, July 1995.
Contacts:
James H. Butler +1 303 497 6898 (tel) 6290 (fax) jbutler@cmdl.noaa.gov
Jurgen M. Lobert +1 303 497 7006 (tel) 7850 (fax) jurgen@fiji.ucsd.edu
OAXTC 92 Data are available on the NOAA/CMDL/NOAH anonymous FTP account
ftp://ftp.cmdl.noaa.gov/noah/ocean/oaxtc_92
For more information see:
http://www.cmdl.noaa.gov/noah
and
http://www.cmdl.noaa.gov/noah/ocean/ocean.html