Pan American Climate Study (PACS) mooring deployment cruise report : R/V Roger Revelle cruise number Genesis 4, 9 April-5 May 1997

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Date
1998-04Author
Way, Bryan S.
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Ostrom, William M.
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Weller, Robert A.
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Ware, Jonathan D.
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Trask, Richard P.
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Cole, Rick
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Donovan, Jeff
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Metadata
Show full item recordCitable URI
https://hdl.handle.net/1912/265Location
Eastern tropical PacificDOI
10.1575/1912/265Keyword
Air-sea interaction; Moored instrument measurements; PACS: eastern tropical Pacific; Roger Revelle (Ship) Cruise Genesis 4Abstract
Three surface moorings were deployed in the eastern equatorial Pacifc from the R/V Roger Revelle as part of the Pan American Climate
Study (PACS). PACS is a NOAA-funded study with the goal of investigating links between sea surface temperature varabilty in the tropical
oceans near the Americas and climate over the American continents. The three moorings were deployed near 125°W, spanning the strong
meridional sea surface temperature gradient associated with the cold tongue south of the equator and the warmer ocean north of the equator,
near the northernmost, summer location of the Intertropical Convergence Zone. The mooring deployment was done to improve
understading of the air-sea fluxes and of the processes that control the evolution of the sea surface temperature field in the region.
Two surface moorings of the Upper Ocean Processes Group at the Woods Hole Oceanographic Institution (WHOI) were deployed-one at
3°S, 125°W and the other at lO°N, 125°W. One mooring from the Ocean Circulation Group (R. Weisberg) at the University of South Florida
(USP) was deployed on the equator at 128°W.
The buoys of the two WHOI moorings were each equipped with meteorological instrmentation, including a Vector Averaging Wind
Recorder, and an Improved Meteorological (IMET) system. The WHOI moorings also carried Vector Measurng Current Meters,
single-point temperature recorders, and conductivity and temperature recorders located in the upper 200 meters of the mooring line. In
addition to the instrumentation noted above, a variety of other instruments, including an acoustic current meter, acoustic doppler current
meters, bio-optical instrument packages and an acoustic rain gauge, were deployed during the PACS field program. The USF mooring had an
IMET system on the surface buoy and for oceanographic instrumentation, two RD Instruments acoustic doppler current profilers,
single-point temperature recorders, and conductivity and temperature recorders. Conductivity-temperature-depth (CTD) profiles were made
at each mooring site and during the transit between mooring locations.
This report describes, in a general manner, the work that took place durig the Genesis 4 cruise aboard the R/V Roger Revelle. The three
surface moorings deployed during this cruise will be recovered and re-deployed after approximately nine months, with a final recovery
planned for 17 months after the first setting. Details of the mooring designs and preliminary data from the CT profies are included.
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Suggested Citation
Way, B. S., Ostrom, W. M., Weller, R. A., Ware, J. D., Trask, R. P., Cole, R., & Donovan, J. (1998). Pan American Climate Study (PACS) mooring deployment cruise report: R/V Roger Revelle cruise number Genesis 4, 9 April-5 May 1997. Woods Hole Oceanographic Institution. https://doi.org/10.1575/1912/265Related items
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