Deployment: TN303

Deployment: 
TN303
Chief Scientist: 
Dr James W. Moffett (University of Southern California, USC-HIMS)
Co-Chief Scientist: 
Dr Gregory Cutter (Old Dominion University, ODU)
Dr Christopher R. German (Woods Hole Oceanographic Institution, WHOI)
Synonyms: 
GEOTRACES EPZT
GEOTRACES East Pacific Zonal Transect (EPZT)
GT13
325020131025
GP16
Platform Type:
 vessel
Start Date: 
2013-10-25
End Date: 
2013-12-20
Location: 
Eastern Tropical Pacific - Transect from Peru to Tahiti
Description

A zonal transect in the eastern tropical South Pacific (ETSP) from Peru to Tahiti as the second cruise of the U.S.GEOTRACES Program. This Pacific section includes a large area characterized by high rates of primary production and particle export in the eastern boundary associated with the Peru Upwelling, a large oxygen minimum zone that is a major global sink for fixed nitrogen, and a large hydrothermal plume arising from the East Pacific Rise. This particular section was selected as a result of open planning workshops in 2007 and 2008, with a final recommendation made by the U.S.GEOTRACES Steering Committee in 2009. It is the first part of a two-stage plan that will include a meridional section of the Pacific from Tahiti to Alaska as a subsequent expedition.

Figure 1. The 2013 GEOTRACES EPZT Cruise Track. [click on the image to view a larger version]

Original data are available from the NSF R2R data catalog