Tracer Hydrography in the Canadian Archipelago & Baffin Bay Part I: Nutrients Kelly K. Falkner,...
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Transcript of Tracer Hydrography in the Canadian Archipelago & Baffin Bay Part I: Nutrients Kelly K. Falkner,...
Tracer Hydrography in the Canadian Archipelago & Baffin Bay
Part I: Nutrients
Kelly K. Falkner, Kumiko Azetsu-Scott , Eddy CarmackE. Peter Jones , Robie Macdonald, Fiona McLaughlin
Chris Measures , Humfrey Melling , Andreas MuenchowMary O’Brien, Karen Selph, Peter Strain
Surface Circulation
Sill depths in m
Davis Strait 675
Barrow Strait 125
Cardigan Strait 180
Hell Gate 125
Kane Basin 220
Fury and Hecla 90
Davis St
F&H
Barrow
Card&Hell Kane
1916-2003 Hydrographic Data Analysis
Zweng, M.M. and A. Münchow (2005) Warming and Freshening of Baffin Bay, 1916-2003. J. Geophys. Res., in press.
Zweng, M.M. (2004) Hydrography and climatological evolution of Baffin Bay, 1916-1999, MSc., University of Delaware, pp. 1-
71
Dep
th (
km)
Dep
th (
km)
Significant warmingbelow 600-m
Significant fresheningabove 300-m
Baffin Bay (67N-80N)
Jones, E. P., J. H. Swift, L. G. Anderson, M. Lipizer, G. Civitarese, K. K. Falkner, G. Kattner, F. McLaughlin and J. Olafsson (2003) Tracing Pacific water in the North Atlantic Ocean, Journal of Geophysical Research, 108(C4), 3116, doi:10.1029/2001JC001141.
Arctic Ocean N-P Relationship
0
20
40
60
80
100
120
28.000 29.000 30.000 31.000 32.000 33.000 34.000 35.000
salinity
Si µM
Hudson 1977 Stn19St. Laurent 1997Healy 2003Hudson 1977 Stn 18
Central Baffin Bay Si
Smith Sound Si
0
5
10
15
20
25
30.000 31.000 32.000 33.000 34.000 35.000
salinity
Si µM
Hudson 1977St. Laurent 1997Healy 2003Robeson 2003
Jones Sound
0
5
10
15
20
25
30
35
40
45
30.000 31.000 32.000 33.000 34.000 35.000
salinity
Si µM
St. Laurent 19971977 stn 481977 stn 491977 stn 511977 stn 471977 stn 451977 stn 461977 stn 50
Lancaster Sound
0
5
10
15
20
25
30
35
40
28.000 29.000 30.000 31.000 32.000 33.000 34.000 35.000
salinity
Si µM
Hudson 1977St. Laurent 1997
Arctic oscillation index
Blue line: cold season averageBlack line: 5 year running meanIndex is 1000 mb height anomalies mapped onto leading EOF 1997-2000
From Häkkinen & Proshutinsky (2004) Freshwater content variability in the Arctic Ocean, JGR 109, C03051