The Central Arctic Ocean remains profoundly understudied, particularly with respect to carbon cycling, ecosystem alteration, and associated changes in atmospheric, ice and ocean physics that drive those biological and biogeochemical systems. The region is expected to experience continued marked changes over the coming decades, driven by ongoing climate warming. Yet, because of relatively limited understanding of fundamental characteristics and processes in the region, predicting these changes and their Pan-Arctic linkages remains difficult. The Synoptic Arctic Survey (SAS) is organized around three major research areas: (1) physical drivers of importance to the ecosystem and carbon cycle; (2) the ecosystem response and (3) the carbon cycle. The overarching questions are: “What is the present state, and what are the major ongoing transformations of the Arctic marine system?” The overall objective of this expedition was to quantify the present states of the physical, biological, and biogeochemical systems of the Pacific Arctic (here defined as the Chukchi Sea, Beaufort shelf/slope, Chukchi Borderlands) and Canadian Basin (i.e., the Makarov and Canada basins) during summer 2022. A key goal is to document temporal changes where possible by comparison with historical data and to quantify linkages among adjacent shelves, slopes, and deep basins on a Pan-Arctic scale. These objectives are part of the International Synoptic Arctic Survey (SAS; 2021-2022) that seeks Pan-Arctic understanding of core ocean variables on a quasi-synoptic, spatially distributed basis using coordinated, international efforts. The findings of this expedition, a US contribution to the SAS, will be a foundation and legacy for future, quasi-decadal assessments of rapid and evolving Arctic Ocean system change." - Cruise Report USCGC Healy HLY2202/AWS2022 [Prepared by Carin Ashjian (cashjian@whoi.edu) and the HLY2202 Science Team]
This data set contains measurements of water properties such as temperature, conductivity, chlorophyll fluorescence, Photosynthetically Available Radiation (PAR), oxygen, beam attenuation, and beam transmission. These measurements were collected by a Seabird 9 conductivity, temperature, and depth (CTD) and associated sensors on a CTD rosette lowered from the ship at discrete stations during cruise HLY2202.
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Phytoplankton pigments from discrete water samples collected from the rosette at specific depths, United States Coast Guard Cutter (USCGC) Healy, Chukchi Sea to Central Arctic Ocean, 2022
"The Central Arctic Ocean remains profoundly understudied, particularly with respect to carbon cycling, ecosystem alteration, and associated changes in atmospheric, ice and ocean physics that drive those biological and biogeochemical systems. The region is expected to experience continued marked changes over the coming decades, driven by ongoing climate warming. Yet, because of relatively limited understanding of fundamental characteristics and processes in the region, predicting these changes and their Pan-Arctic linkages remains difficult. The Synoptic Arctic Survey (SAS) is organized around three major research areas: (1) physical drivers of importance to the ecosystem and carbon cycle; (2) the ecosystem response and (3) the carbon cycle. The overarching questions are: “What is the present state, and what are the major ongoing transformations of the Arctic marine system?” The overall objective of this expedition was to quantify the present states of the physical, biological, and biogeochemical systems of the Pacific Arctic (here defined as the Chukchi Sea, Beaufort shelf/slope, Chukchi Borderlands) and Canadian Basin (i.e., the Makarov and Canada basins) during summer 2022." - Cruise Report USCGC Healy HLY2202/AWS2022 [Prepared by Carin Ashjian (cashjian@whoi.edu) and the HLY2202 Science Team]. This dataset presents upper ocean (75 meters) chlorophyll-a and pheophytin concentrations collected at hydrographic stations. Pheophytin proportions are additionally provided to inform on the relative freshness of observed phytoplankton blooms.
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- Award ID(s):
- 2210615
- PAR ID:
- 10527487
- Publisher / Repository:
- NSF Arctic Data Center
- Date Published:
- Edition / Version:
- 1.0
- Subject(s) / Keyword(s):
- Synoptic Arctic Survey SAS Pheophytin Arctic Ocean Chukchi Sea Beaufort Sea North Pole Pacific Arctic Chlorophyll Pigments
- Format(s):
- Medium: X Other: text/xml
- Sponsoring Org:
- National Science Foundation
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