Log Post: Colored Lines – Decyphering the CTD Code

The science team onboard Falkor are deploying CTDs during the voyage to determine physical, chemical, and biological properties of the water column. This information is used to calculate accurate water depths for our multibeam echosounder data and also characterizes the water masses in our study region. For example, between Pohnpei and the two atolls, we … Continued

Log Post: Flying in Darkness – Charting Unknown Reefs at Night

From the Night Shift – Midnight to 8:00 a.m. When exploring the deep ocean it may not be possible to know what lies ahead in the blackness of the depths, but if a pinnacle rises up suddenly from the featureless bottom, it is a moment to celebrate. Suddenly there it is, a new discovery, with … Continued

Log Post: Amelia Earhart and Nukumanu Atoll

Today we mapped the edge of the remote Nukumanu Atoll, last known position of Amelia Earhart, adventurous air pioneer of her day. My parents named me after her, admiring her fortitude and even, perhaps, her stubbornness to persevere. I don’t know that I have anywhere near her drive or ability, but it is exciting to … Continued

Log Post: Using the CTD to Calibrate the Multibeam Sonar

We have arrived at the Ontong Java Plateau and to properly map the seafloor we needed to know more about the physical characteristics of the water above it. To do this, the science crew typically deploy a CTD rosette (array). CTD stands for conductivity, temperature, and depth. Since the electrical conductivity of water relates directly … Continued