Our second sampling station

We are now at 75N. Yesterday we encountered rough seas, with winds at approximately 30 meters/second (!!). Some people were more sick than others, but we all managed to pull through and are in good spirits!

The zooplankton teams are getting ready to deploy another CTD, and a few more nets (WP3, WP2, multinet) for biological sampling. The samples taken from these nets will be used for a variety of studies. Two in particular will be assessing zooplankton community composition of small copepods, and behavioral studies of Calanus species (a copepod found in Arctic and sub-Arctic seas).

After we finish sampling, Jon Cohen (University of Delware) will deploy a light sensor into the water. This light sensor measures the bioluminescence of organisms found within these waters. Since organisms can be quite sensitive to non-natural light sources, the R/V Helmer Hanssen will move a bit away from the zooplankton sampling and turn off its exterior lights before deploying the sensor. That way, more of these smaller zooplankton animals will stay closer to the surface of the water, and the sample will be more representative of the polar night.

Malin enjoying the weather at 12 noon.

We plan on being in Van Mijen fjord this evening. Our first scheduled stop is in Longyearbyen on Sunday.

-Erin Kunisch (PhD candidate, UiT)

The A in Arctic ABC

The ‘A‘ in Arctic ABC stands for applied technology. Scientists have developed and will be deploying autonomous drifting sensors in the Arctic sea ice. These sensors will observe and monitor the ice-associated biological communities during the winter (polar night) and spring seasons. Data collected from these sensors will provide a better understanding of how Arctic biological communities will respond to climate change.

In January, the Arctic ABC team will be installing sensors in Ny Ålesund, Svalbard (situated at 78° 55′ N, 11° 56′ E). Artur Zolich and Sturla Haltbakk, researchers from NTNU (Norwegian University of Science and Technology) are working with instruments that measure light throughout the year. The data that is harvested from these sensor instruments will be complimentary to the underwater measurements of light for the instruments that will be tested later on in January. Stay tuned!

Ny Ålesund town center
Ny Ålesund at 12 noon, during the polar night period.
two people standing next to light dome sensor
Artur and Sturla, two researchers involved with the Arctic ABC project, standing next to the light dome sensor.
Light dome with sensors.
Light dome with sensors.

-Pedro De La Torre