Faroese waters

Karin Margretha H. LarsenICES WGOH meeting in Reykjavik

8-11 April 2013

image:AGU 2003

North Atlantic and Nordic Seas

FAROES

Faroese CTD sections 2012

ADCP deploymentswithin THOR/NACLIM

IROC: AW (T,S)Coastal station S

Add deep water series?

N

V E

S

Z

R

M S

Atlantic Water in Faroese areas - Temperature

Temperatures in the Faroe Bank Channel decreased by 0.5 degr. C

Atlantic Water in Faroese areas - Salinity

Salinities continued to decrease in 2012

Faroe Shelf Temperature 2012

1914 – 1969 Average

Combining in-situ measurements and altimetry to estimate volume, heat and salt

transport variability through the Faroe Shetland Channel

B. Berx, B. Hansen, S. Østerhus, K. M. Larsen, T. Sherwin and K. Jochumsen

Submitted to Ocean Science

Faroe-Sh

etland Channel

Faroe Bank Channel

Observationalsection

Period 2009 – 2011Up to 7 ADCPs on section S

Net flow = High inflow – High outflow

Highly variable flow structure

Measurements

Temperature

100 CTD sections

4 ADCPs: 1995 – 2009+5 ADCPs: 2009 - 2011

Altimetry: 1992 - 2011

Atlantic Water (> 5 °C):Net flow = Inflow – Outflow

R=0.80 R=0.67R=0.87

R=0.74

Correlations: Altimetry – ADCPs upper 325m

FSC Atlantic Water Inflow

Average Volume Transport:2.7 ± 0.5 Sv

Average Heat Transport:107 ± 21 TW

Average Salt Transport:98 ± 20 · 106 kg s-1

The research leading to these results has received funding from the European Union 7th Framework Programme (FP7 2007-2013), under grant agreements n. 212643 THOR www.eu-thor.eu and n.308299 NACLIM www.naclim.eu