NOAA Arctic Report Card 2025 : Atlantification of the Arctic

Details

• Alternative Title:
  Atlantification of the Arctic Ocean
• Personal Author:
  Polyakov, I. V. ; Ingvaldsen, R. B. ; Bluhm, B. A.
• Corporate Authors:
  Global Ocean Monitoring and Observing (U.S.) ; International Arctic Research Center. ; Havforskningsinstituttet (Norway) ; Universitetet i Tromsø.
• NOAA Program & Office:
  OAR (Oceanic and Atmospheric Research) ; GOMO (Global Ocean Monitoring and Observing) ; PMEL (Pacific Marine Environmental Laboratory)
• Description:
  Oceanic currents play an important role in the Arctic region by bringing oceanic heat to the Arctic Ocean from the lower latitude regions (Fig. 1). In the early 1890s, Nansen and his crew aboard the Fram made the first measurements in the Eurasian Basin, observing that warm, salty water from the Atlantic Ocean flows northward into the Arctic Ocean at 150-800 meters depth. They also observed near-freezing and relatively fresh water in the upper ~50 m and a layer with large vertical salinity and density gradients (called the Arctic halocline) overlying the Atlantic Water (AW) at ~50-150 m depth.
• Keywords:
  Arctic Regions Climatic Changes Monitoring North Atlantic Ocean Ocean Currents Arctic Regions Climatic Changes Ocean Currents
• Series:
  NOAA technical report OAR ARC   25-11 (Arctic Report Card)
• DOI:
  https://doi.org/10.25923/8q4y-bg95
• Format:
  pdf
• Document Type:
  Technical Report
• Place as Subject:
  Arctic Ocean
• License:
  https://creativecommons.org/publicdomain/zero/1.0/
• Rights Information:
  CC0 Public Domain
• Compliance:
  Submitted
• Main Document Checksum:
  urn:sha-512:76ee537cfe8bf2692d8d206adc545e307b8deb80977d216a44835551ab996642a81baf38fe23d1e6241dba56974d7f30e1790d29aa96ff7d3e91324c93ec7acb
• Download URL:
  https://repository.library.noaa.gov/view/noaa/72427/noaa_72427_DS1.pdf
• File Type:
  [PDF - 6.56 MB ]