Oceanography for Everyone – Help us build a CTD!

Head over to our Rockethub Page for more information!

Conductivity, temperature, and depth (CTD). With these three measurements, marine scientists can unlock ocean patterns hidden beneath the waves. The ocean is not uniform, it its filled with swirling eddies, temperature boundaries, layers of high and low salinity, changing densities, and many other physical characteristics. To reveal these patterns, oceanographers use a tool called the CTD. A CTD is found on almost every major research vessel. Rare is the scientific expedition–whether it be coastal work in shallow estuaries or journeys to the deepest ocean trenches–that doesn’t begin with the humble CTD cast.

The CTD is not cheap. Commercial CTD’s start at more the $5,000 and can climb as high as $25,000 or more.

We believe that the prohibitive cost of a CTD is an unacceptable barrier to open science. The price tag excludes individuals and groups who lack research grants or significant private funds from conducting oceanographic research. We want to make this tool–the workhorse of oceanographic research–available to anyone with an interest in the oceans.

We’re building a CTD, but we need your help!

The ocean belongs to us all. Let’s ensure that we have access to the tools needed to study it.

Head over to our Rockethub Page for more information!

Second to last day of experiments

At this point we’re running on autopilot a bit.  As one of the Georgia students pointed out earlier today, we’ve become incredibly efficient at the protocols, just in time to start heading home tomorrow.

People have also had time to start analyzing their data from the first round of experiments.  Interestingly, the phytoplankton community has changed significantly in our little patch of ocean over just the short time we’ve been here.  Brian commented “I always assume, incorrectly, that the system will be static throughout the cruise. But it’s not, it’s surprisingly dynamic every year”.

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Day 3 at sea: first day in one place

After 6 long hours processing the phytoplankton profile from last night’s CTD, we decided to stay on this station for the remainder of our trip. The profile showed a distinct (and stable) maximum of phytoplankton. Interestingly, this maximum isn’t at the top as you might expect for sun-loving organisms.

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