1. North Atlantic Observing System
Gerard McCarthy
NERC/NOC

2. NACLIM: An Overview
North Atlantic Climate European Commission Framework 7 Collaborative Project
§  Duration: 4 years + 3  Months, Oct – Jan. 2017
§  Research Focus: Assessment of decadal climate forecasts
§  Research Focus: Continuation of moored transport measurements
§  Partner: 18 participating institutions (+1 Third party) from 9 European countries
4 universities
12  research institutions
2 national operational institutes
§  5 Core themes, 12 work packages
§  Project costs: 11 M€
§  EU contribution:   8.6 Mio M€

3. Moored Observations in NACLIM
Greenland-Scotland Ridge
OSNAP family
Rekyannes ridge
54ºN array
RAPID at 26ºN

4. Greenland-Scotland Ridge
Long-term moorings:
Greenland-Scotland Ridge
Greenland-Scotland Ridge:
Denmark Strait
Iceland-Faroe Atlantic inflow
Faroe-Shetland Channel
Faroe Bank Channel

5. Denmark Straits
About half dense water overflow from Nordic Seas through Denmark Straits
Monitored since 1996
Mean of 3.4 Sv (var: 2.0 Sv)
No trend
Jochumsen et al., Variability of the Denmark Strait overflow: moored time series from , JGR Oceans, 2013
1996
1998
2000
2002
2004
2006
2008
2010

6. Faroe-Bank Channel Around 2 Sv of deep water through the FBC
Monitored since 1995
Hansen and Osterhus, Faroe Bank Channel overflow 1995–2005, Prog. Oc., 2007

7. Faroe-Shetland Channel
2.7±0.5Sv mean strength
Timseries from 1992 (combined moorings and altimetry)
Berx et al., 2013, Combining in situ measurements and altimetry to estimate volume, heat and salt transport variability through the Faroe–Shetland
Channel. Oc. Sci.

8. GSR totals Total inflow across GSR is 7 Sv Overflows (FBC+DS) is 6 Sv
No trend in transport
Noticeable increase in temperature
Shetland branch
Faroe branch
Iceland branch

9. NACLIM and OSNAP
Rekjyannes
Ridge
The 53ºN array

10. The 53ºN Array Located at exit of Labrador Sea
Joint Canadian (C1-C3,K7), US (K7) and German
NACLIM PI: Johannes Karstensen (GEOMAR)

11. Rejkyannes Ridge 4 moorings on west flank of the RR
Will be deployed this year (1 year delayed) for 3 times 1 year measuring velocities, T and C
NACLIM PI Laura de Steur (NIOZ)

12. NACLIM and OSNAP Rekjyannes Ridge The 53ºN array
53ºN Array (J. Karstensen-GEOMAR)
Rekjyannes Ridge (L. De Steur-NIOZ)
Extras: Labrador sea mooring; SAMS activities
Rekjyannes
Ridge
The 53ºN array

13. NACLIM Extras Predictability of ocean surface state:
the SST in the Nordic Seas
Predictability of the atmosphere
Sea-ice and snowfall
Polar lows
Impact on the oceanic ecosystem
e.g. blue whiting catches and sub-polar gyre
Impact on urban societies
Urban heat islands
Data management and outreach

14. The research leading to these results has received funding from the European Union 7th Framework Programme (FP ), under grant agreement n NACLIM