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Thursday, February 26, 2015

Todd UR, Pondering Updates

I am really looking forward to the lab tomorrow on Febuary 27 2015. Mainly because it will be on the Tomoka River downstream from my test site.  It was suggested that I use salinity amounts as my key tracer in my project.  My prediction is that the further I get from the Ocean the less salinity my sample should contain. So far my first practice test holds this to be true. The tool I will use to measure the salinity levels is the refractometer.
SALINITY REFRACTOMETER shown with viewing screen (in background) with a 50 ppt sample applied.
  
According to hyperphysics.edu the average salinity content in the ocean is 35 ppt (parts per thousand)
When I took a test sample last Friday, February 20 2015 at International Speedway Blvd. @ Tomoka River bridge my two samples showed 1 and 0.5 ppt and this is near the start of the River.
I was also advised to take my samples at different depths if I could get some guidance on why this is so important it would be appreciated.   Personal professional experiences would be great guidance!  
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1 comment:

  1. Deb 'n PaulFebruary 27, 2015 at 7:01 AM

    The point of salinity was to get you to see that as you move away from/closer to a source, the concentration changes. What you need to do is to identify one--maybe two constituents specifically associated with the discharge water and take samples along a transect to see if the constituent dilutes with distance from the source. The reason for possibly testing with depth at the point of discharge is to make sure the density of the discharge isn't so heavy that it's dropping to the river bottom which would be where you would need to sample--you need to understand the behavior of your discharge in order to properly study it.

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