Jump to content
Snow?
Local
Radar
Cold?
IGNORED

The weakening of the North Atlantic circulation


IanR

Recommended Posts

Posted
  • Location: Near King's Lynn 13.68m ASL
  • Weather Preferences: Hoar Frost, Snow, Misty Autumn mornings
  • Location: Near King's Lynn 13.68m ASL

An excellent link which doesn't go off at a tangent and is highly pertinent to the other thread. It suggests that "Atlantic basin-scale SST variability in 2014 was driven primarily by atmospheric forcing. In particular, pronounced atmospheric cooling over much of the subpolar gyre", as I for one suspected.

Indeed, far from reduced MOC, the cooling has led to increased deep water formation.

 

From the report:

 

 

The Atlantic meridional overturning circulation estimated from a now decade-long (2004–March 2014) trans-basin instrument array along 26°N shows a decrease in transport of −4.2 ± 2.5 Sv decade−1 (95% confidence, 1 Sv = 1 × 106 m3 s−1). 

 

This is the RAPID array data and measures both upper layer northward transport and the returning deep water transport. So whatever the cause or causes of the recent NATL anomaly, there is evidence (imo) that a secular change is underway (albeit with only 10 years of data). 

  • Like 2
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • UK Storm and Severe Convective Forecast

    UK Severe Convective & Storm Forecast - Issued 2024-03-29 07:13:16 Valid: 29/03/2024 0600 - 30/03/2024 0600 THUNDERSTORM WATCH - FRI 29 MARCH 2024 Click here for the full forecast

    Nick F
    Nick F
    Latest weather updates from Netweather

    Difficult travel conditions as the Easter break begins

    Low Nelson is throwing wind and rain at the UK before it impacts mainland Spain at Easter. Wild condtions in the English Channel, and more rain and lightning here on Thursday. Read the full update here

    Netweather forecasts
    Netweather forecasts
    Latest weather updates from Netweather

    UK Storm and Severe Convective Forecast

    UK Severe Convective & Storm Forecast - Issued 2024-03-28 09:16:06 Valid: 28/03/2024 0800 - 29/03/2024 0600 SEVERE THUNDERSTORM WATCH - THURS 28 MARCH 2024 Click here for the full forecast

    Nick F
    Nick F
    Latest weather updates from Netweather
×
×
  • Create New...