[Exports_pi] Question about cruise track in NE Pacific

[Ken Buesseler]

Adrian

The EXPORTS Implementation plan and the Lee et al project is designed 
around following a Lagrangian float.  The 3 "states" refers to the time 
over which we repeat the main measurements (more or less the time it 
takes for surface particles to sink to 500m).  Conditions may change, or 
be the same.  I think we'd learn just as much from observing a steady 
state condition as a changing one, given the various time/space scales 
of each measurement.

Given the Lagrangian time-series tracking, I'm hoping the NCP estimates 
(via O2/Ar) can happen on the survey ship  to give the spatial/temporal 
resolution to match the 234Th sampling plan and give spatial context to 
all of the other particle and other proxies.

My 2 cents, Ken


On 7/25/2017 11:11 PM, Marchetti, Adrian wrote:
> Hi All,
>
>   Thanks for the informative meeting today.  It was tremendously 
> helpful in clarifying what measurements each group is planning.  I 
> have a quick question for Dave and the group in general I guess.  Has 
> it been decided whether the cruise track will be such that we will 
> occupy the same packet of water over the duration of the cruise in 
> some sort of Lagrangian fashion or do we intend to stay at the same 
> location?  Or perhaps is either up for discussion?  I am just curious 
> how we intend to occupy up to three ECC states in the NE Pacific. 
>  This also might help our groups in estimating the number of samples 
> we need to collect and how frequent we should sample.
>
> Thanks,
> Adrian
>
> *****************************************************
> Adrian Marchetti, Ph.D.
> Department of Marine Sciences
> University of North Carolina at Chapel Hill
> Phone: 919-843-3473
> Website: http://marchettilab.web.unc.edu/
> ******************************************************
>
>
>
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-- 
Ken Buesseler
Senior Scientist, Woods Hole Oceanographic Institution
http://cafethorium.whoi.edu
Director, Center for Marine and Environmental Radioactivity
http://www.whoi.edu/CMER see also http://OurRadioactiveOcean.org
508-289-2309

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