What's New
FOCI mooring ready for deployment in the Bering Sea aboard the NOAA Ship Oscar Dyson. The M2 surface mooring that has been deployed each spring in the southeastern Bering Sea for over 25 years. This critical mooring provides year-round measurements of temperature, salinity, nitrite, chlorophyll, and currents in this highly productive area. For the last 10 years, partial pressure in CO2 (pCO2) and pH measurements have also been taken at M2.
An annual survey is underway to provide baseline fisheries and oceanographic data to support sustainable management of living resources in the Bering Sea and the rapidly changing US Arctic ecosystem. These surveys provide key data in understanding and monitoring events such as sea-ice loss and the cold pool and how these are impacting the Arctic ecosystem.
This spring mooring cruise brings together scientists from NOAA’s PMEL and Alaska Fisheries Science Center, University of Washington, US Fish and Wildlife, and the University of Alaska. While aboard the NOAA Ship Oscar Dyson, the scientists will service a biophysical mooring array in the Bering Sea, collect conductivity, temperature, depth (CTD) profiles, zooplankton and ichthyoplankton samples and conduct special projects related to harmful algal blooms and zooplankton machine learning. Results from these observations and experiments will help describe important ecosystem linkages among climate, plankton, fishes, birds and mammals.
EcoFOCI will be field testing and using several technologies this summer, including pop-up floats, a remote access sampler and a new shallow-water glider. These technologies aim to enhance shipboard and mooring research with more data collection in a fine scale region.
NOAA’s EcoFOCI program is leading 5 research cruises this March to October in the Alaska region.
Find blog updates on the NOAA Alaska Fisheries Science Center webpage: https://www.fisheries.noaa.gov/region/alaska#science
PMEL in the News
National Oceanic and Atmospheric Administration is developing new research technology to better understand the changing ecosystems of the Arctic. It plans to debut one such piece of technology, the Oculus Coastal Glider, summer 2022 to study the Bering Sea. Phyllis Stabeno is quoted from the...
In the second episode of this two-part series, the search continues for signs of what happened on the day the dinosaurs died. Vasily Titov is featured discussing tsunami at around 10:33
To improve future tropical cyclone forecasts, researchers sent a remotely operated saildrone into the extreme winds and towering waves around the eye of a category 4 hurricane. Written by Gregory R. Foltz, Chidong Zhang, Christian Meinig, Jun A. Zhang and Dongxiao Zhang
Feature Publication
Biogeochemical (BGC) profiling floats are free-drifting, battery-powered platforms that measure up to six BGC parameters: pH, oxygen, nitrate, chlorophyll a, suspended particles, and downwelling irradiance. BGC floats typically profile from 2000 meters to the surface every 10 days and operate for 4 to 6 years, contributing significantly to the global ocean observing system. Photo by Christoph Gerigk/Sea-Bird Electronics
Microscopic organisms in the surface ocean, called phytoplankton, use photosynthesis to convert carbon dioxide into organic compounds like carbohydrates, fats, and proteins. Only a small fraction of this organic matter produced by phytoplankton is transferred (exported) to deeper layers of the ocean, either through sinking particles (a more efficient process) or downward mixing of dissolved carbon (a less efficient process). Characterizing the export of these carbon pools over time and space... more