Deployment: KN199-05

Deployment: 
KN199-05
Chief Scientist: 
William J. Jenkins (Woods Hole Oceanographic Institution, WHOI)
Synonyms: 
GA03
GT10
USGT-NAT-2010
KN199-5
GNAT
knorr199-4/5
Platform:
 R/V Knorr
Platform Type:
 vessel
Start Date: 
2010-11-08
End Date: 
2010-11-26
Location: 
Subtropical northern Atlantic Ocean
Description

KN199-05 is the completion of the US GEOTRACES Zonal North Atlantic Survey Section cruise originally planned for late Fall 2010 from Lisboa, Portugal to Woods Hole, MA, USA.

Due to engine failure, the science activities scheduled for the KN199-04 cruise were canceled on 2 November 2010. On 4 November the R/V Knorr put in at Porto Grande, Cape Verde (ending KN199 leg 4) and was scheduled to depart November 8, under the direction of Acting Chief Scientist Oliver Wurl of Old Dominion University. The objective of KN199 leg 5 (KN199-05) was to carry the vessel in transit to Charleston, SC while conducting abbreviated science activities originally planned for KN199-04.

Funding: NSF OCE award 0926423

Science Objectives: To obtain state of the art trace metal and isotope measurements on a suite of samples taken on a mid-latitude zonal transect of the North Atlantic. In particular, sampling targeted the oxygen minimum zone extending off the west African coast near Mauritania, the TAG hydrothermal field, and the western boundary current system along Line W. For additional information, please refer to the GEOTRACES program Web site (https://www.geotraces.org/) for overall program objectives and a summary of properties measured.

Science Activities include seawater sampling via GoFLO and Niskin carousels, in situ pumping (and filtration), CTDO2 and transmissometer sensors, underway pumped sampling of surface waters, and collection of aerosols and rain. Hydrography, CTD and nutrient measurements were supported by the Ocean Data Facility (J. Swift) at Scripps Institution of Oceanography and funded through NSF Facilities. They provided an additional CTD rosette system along with nephelometer and LADCP. A trace metal clean Go-Flo Rosette and winch were provided by the group at Old Dominion University (G. Cutter) along with a towed underway pumping system.

Additional cruise information is available from the Rolling Deck to Repository (R2R): https://www.rvdata.us/search/cruise/KN199-05

Other Relevant Links:

List of cruise participants: [ PDF ]

ADCP data are available from the Currents ADCP group at the University of Hawaii: KN199-05 ADCP