WEBVTT

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♫ Guitar Music ♫

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We're out here at Port Mahon.

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We're heading out to Ship John Shoal
Lighthouse today, to service

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and clean some water quality monitors
that we have out there.

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So the monitors that we have out at
the lighthouse are specifically looking

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at the difference between dissolved oxygen
and specific conductance

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in the top of the water column
versus the bottom of the water column

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to see if there's any
sort of striation there.

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So our gage at Ship John Shoal

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is one of the few places
on the Delaware Bay where

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we can get water mixing from the Delaware
River and the Delaware Bay.

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As the tide comes in, we're seeing saltier
water cruise past the lighthouse.

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Lower end of the bay,

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there's not a lot of structure
we can have a gage deployed at,

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but at the lighthouse itself

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there's plenty of space to work
and have our equipment deployed.

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What researchers are interested in
is [the] potential increase

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in salinity
as water is coming into the bay.

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So we get field readings

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and then we compare those
to our continuous monitor readings to see

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if any fouling or dirt, barnacles, other things like that

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are affecting the data
that we're collecting.

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And then we clean the monitors.

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We take another comparison
after the cleaning

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to see if in fact
there was any difference made.

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Delaware River flows
through a huge watershed.

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We try to pick and choose our best days
to go out there.

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We have to worry about wind,
we have to worry about fog.

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And from here in Delaware,
it's about a half hour boat cruise

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up to the lighthouse and our gage.