2023 EXPEDITION —

Nansen and Amundsen Basins Observational System

NABOS 2023

IARC researchers lead the international scientific team aboard the U.S. Coast Guard Cutter Healy for this year's expedition from Kodiak, AK to Tromsø, Norway.


August 26–October 2, 2023

The 2023 38-day scientific cruise is part of the observational program NABOS, the Nansen and Amundsen Basins Observational System. Funded by the U.S. National Science Foundation, the plan for this year's expedition includes mooring deployments and recovery, multidisciplinary surveys, and numerous complementary observations and measurements. 

This is the 14th NABOS cruise since 2002. IARC's Andrey Pnyuskhov is chief scientist on this year's expedition.

Expedition Blog

August 28

The NABOS team aboard the USCGC Healy is working hard to be ready for the first oceanographic station, which is scheduled for September 2. See map with all planned work for the 2023 NABOS cruise and sea ice state (ice is white, open water is blue) on August 27  (MB labels indicate our mooring sites where observations are conducted all year round thanks to our autonomous observational systems. Black dots show position of snap-shot casts, for measuring temperature and salinity and water sampling. Green dots show the position of planned radioisotope observations).


August 27

The second day of our NABOS expedition has arrived. At 16 knots, the ship crossed the Aleutian Islands line and headed northward towards the Arctic.

August 26

The USCGC Healy sailed from Kodiak to the high Arctic on August 26, 2023. The NABOS cruise has begun!