TY - JOUR
T1 - Model simulated freshwater transport along the Labrador current east of the Grand Banks of Newfoundland
AU - Ma, Yongxing
AU - Lu, Youyu
AU - Hu, Xianmin
AU - Gilbert, Denis
AU - Socolofsky, Scott A.
AU - Boufadel, Michel
N1 - Funding Information:
We acknowledge the funding support to this study by the Marine Environmental Observation, Prediction and Response, the International Governance Strategy and the Multi-Partner Research Initiative on marine oil spill research by Fisheries and Oceans Canada.
Publisher Copyright:
Copyright © 2022 Ma, Lu, Hu, Gilbert, Socolofsky and Boufadel.
PY - 2022/11/15
Y1 - 2022/11/15
N2 - The freshwater transport (FWT) by the Labrador Current (LC) around the Grand Banks of Newfoundland (GBN) is diagnosed with the 26-year Global Ocean Physical Reanalysis 1/12° data (GLORYS12v1) during 1993 - 2018. The time-mean FWT of the LC above the 1027.25 kg/m3 isopycnal surface is 83.6 mSv (1 mSv = 103m3/s) southward through the Flemish Pass. Among this 83.6 mSv, 42% (35.2 mSv) is exported into the interior of the North Atlantic along the whole pathway of the LC from the Flemish Pass to the Tail of the GBN, with 25.5 mSv by the mean advection and 7.2 mSv by the mesoscale eddy transport. The seasonal and inter-annual variations of the FWT in the east of the GBN are mainly caused by the variation of the horizontal velocity of the LC, and the variation of salinity makes a nontrivial contribution to the variation of the FWT to the north of 45°N. Around the Tail of the GBN, the mesoscale eddies make significant contributions to the time-mean FWT and the seasonal and inter-annual variations of the FWT.
AB - The freshwater transport (FWT) by the Labrador Current (LC) around the Grand Banks of Newfoundland (GBN) is diagnosed with the 26-year Global Ocean Physical Reanalysis 1/12° data (GLORYS12v1) during 1993 - 2018. The time-mean FWT of the LC above the 1027.25 kg/m3 isopycnal surface is 83.6 mSv (1 mSv = 103m3/s) southward through the Flemish Pass. Among this 83.6 mSv, 42% (35.2 mSv) is exported into the interior of the North Atlantic along the whole pathway of the LC from the Flemish Pass to the Tail of the GBN, with 25.5 mSv by the mean advection and 7.2 mSv by the mesoscale eddy transport. The seasonal and inter-annual variations of the FWT in the east of the GBN are mainly caused by the variation of the horizontal velocity of the LC, and the variation of salinity makes a nontrivial contribution to the variation of the FWT to the north of 45°N. Around the Tail of the GBN, the mesoscale eddies make significant contributions to the time-mean FWT and the seasonal and inter-annual variations of the FWT.
KW - Grand Banks of Newfoundland
KW - Labrador Current
KW - freshwater transport
KW - multi-scale variations
KW - retroflection
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U2 - 10.3389/fmars.2022.908306
DO - 10.3389/fmars.2022.908306
M3 - Article
AN - SCOPUS:85143150181
SN - 2296-7745
VL - 9
JO - Frontiers in Marine Science
JF - Frontiers in Marine Science
M1 - 908306
ER -