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Profiling CTDs

Analog Sensor Integration Guide

Analog Sensor Integration Guide

From bottom contact triggers to transmissometers, oceanographic sensor options are vast and diverse, and choosing the right combination of sensors can significantly augment a CTD’s measurement capabilities. Although getting disparate technologies to talk to one...

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Q&A: Diagnose This Profile

Q&A: Diagnose This Profile

The data shows conductivity from a 19plus deployed in a shallow estuarine river. The red line shows the CTD downcast and the green line shows the upcast. While the upcast data show the expected shape for a CTD profile (low conductivity at the surface, rising conductivity as the CTD descends), the downcast shows an unusual shape in until about 2.6 meters depth, where conductivity appears to suddenly correct itself.

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Q&A: Two Symptoms of the Same Problem

Q&A: Two Symptoms of the Same Problem

May 2020 Newsletter The data above show two major symptoms of the same problem occurring in different locations on a 19plusV2 profiling CTD. On the left, oxygen appears to drop below zero and is highly erratic during the downcast (light blue). However, once it hits a...

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Q&A: Erratic Profiles

Q&A: Erratic Profiles

November 2019 Newsletter The data above come from a profiling CTD, deployed in sea conditions that caused approximately 1-meter ship heave. Two things stick out – relatively unchanging salinity data during the downcast, and noisy data during the upcast (shown in light...

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Salinity Spikes: Sensor or Environment?

Salinity Spikes: Sensor or Environment?

These data show a subtle problem that is producing “fuzzy” salinity and oxygen data. While the overall shape of the profile appears reasonable, small spikes are present throughout the CTD cast. The black lines encompass a particularly strange spot where both salinity...

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OCEANS 2022

Sea-Bird Scientific is excited to announce our exhibition at the OCEANS Conference in Virginia Beach, Virginia from October 17 - 20 this year. Don't forget to stop by and see us at booth #500. Want to reserve your spot? Register now here. From the organizers: "Global...

Ocean Optics 2022

Sea-Bird Scientific is excited to announce our exhibition at the Ocean Optics Conference in Quy Nhon, Binh Dinh, Vietnam, from October 2 - 7 this year.  Want to reserve your spot? Register now here. From the organizers: "Ocean Optics XXV will take place October 2–7,...

UG2 Workshop 2022

We are so excited to be part of the upcoming Underwater Glider Workshop located in Seattle, Washington. This event is facilitated by the Underwater User Group, an organization supported by the Consortium for Ocean Leadership and IOOS (Integrated Ocean Observing...

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