The RAPID array begins continuous AMOC measurement at 26.5°N
A trans-Atlantic line of moorings was deployed across 26.5°N in April 2004 by the UK National Oceanography Centre with the University of Miami and NOAA. Combining the cable-derived Florida Current transport, satellite-derived Ekman transport and geostrophic transport inferred from boundary density profiles, it produces a continuous estimate of the overturning strength. Before it, basin-wide overturning was known only from occasional hydrographic snapshots decades apart, and any claimed trend was a comparison of two photographs.
Historical — it happened, and the record is settled.
Subjects
- RAPID-MOCHA-WBTS Array at 26.5°N · research programme · Subtropical North Atlantic — 26.5°N section · not located
- Atlantic Meridional Overturning Circulation (AMOC) · natural phenomenon · Atlantic Ocean · not located
- North Atlantic — Grand Banks approaches · maritime region · Grand Banks of Newfoundland and the Labrador Current · not located
Evidence
Partly verified — Core facts are sourced; some optional detail is deliberately absent.
Signal and Noise in the Atlantic Meridional Overturning Circulation at 26°N
The RAPID array at 26.5°N gives a mean AMOC of 17.0 Sv (s.d. 2.8 Sv) for April 2004 to January 2023 and a weakening of 1.0 [0.4–1.6] Sv per decade; the trend is not expected to exceed a signal-to-noise ratio of 2 until the 2040s. Read via search summary; the paper itself could not be fetched because the publisher domain is blocked to this run.
Geophysical Research Letters (American Geophysical Union) · 2025 · Partly verified
McCarthy, G. D. et al., Geophys. Res. Lett., 2025, doi:10.1029/2025GL115055 (open copy: nora.nerc.ac.uk/id/eprint/539195)
Recorded on RAPID-MOCHA-WBTS Array at 26.5°N
- Baltic's ice warning handed to Ismay and pocketed
- Mesaba reports heavy pack ice and bergs directly ahead
- Iceberg sighted and struck
- Titanic founders
- International Ice Patrol established
- The RAPID array begins continuous AMOC measurement at 26.5°N
- Twenty-two years of continuous AMOC observation
- OSNAP moves the engine room out of the Labrador Sea
- IPCC AR6 assesses AMOC decline as very likely and collapse as unlikely this century
- A statistical early-warning analysis puts an AMOC collapse mid-century
- A physics-based early warning signal is proposed
Related
Related because they share a subject in the Atlas — never because the text looks similar.
- A physics-based early warning signal is proposed · 2024-02
- A statistical early-warning analysis puts an AMOC collapse mid-century · 2023-07
- IPCC AR6 assesses AMOC decline as very likely and collapse as unlikely this century · 2021
- OSNAP moves the engine room out of the Labrador Sea · 2019-02
- Twenty-two years of continuous AMOC observation · 2004-04 – 2023-01
- International Ice Patrol established · 1914
- Titanic founders · 1912-04-15 02:20
- Baltic's ice warning handed to Ismay and pocketed · 1912-04-14 13:42