Sea surface salinity structure of the meandering Gulf Stream revealed by SMOS sensor

被引：59

作者：

Reul, N. ^{[1
]}

Chapron, B. ^{[1
]}

Lee, T. ^{[2
]}

Donlon, C. ^{[3
]}

Boutin, J. ^{[4
]}

Alory, G. ^{[5
]}

机构：

[1] IFREMER, Lab Oceanog Spatiale, Plouzane, France

[2] CALTECH, Jet Prop Lab, NASA, Pasadena, CA USA

[3] European Space Agcy, Estec, NL-2200 AG Noordwijk, Netherlands

[4] Lab Oceanog & Climat Expt & Approches Numer, Paris, France

[5] Univ Toulouse 3, LEGOS, F-31062 Toulouse, France

来源：

GEOPHYSICAL RESEARCH LETTERS | 2014年 / 41卷 / 09期

关键词：

DIAGNOSTIC MODEL;

D O I：

10.1002/2014GL059215

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Measurements from the Soil Moisture Ocean Salinity (SMOS) satellite acquired during 2012 in the western North Atlantic are used to reveal the evolution of the sea surface salinity (SSS) structure of the meandering Gulf Stream with an unprecedented space and time resolution. Combined with in situ surface and profile measurements, satellite-derived surface currents, sea surface height (SSH), surface temperature (SST), and chlorophyll (Chl) data, SMOS SSS observations are shown to coherently delineate meanders pinching off from the current to form well-identified salty-(warm-) and fresh-(cold-) core Gulf Stream rings. A covariance analysis at two locations along the separated Gulf stream path (south of Nova Scotia and in the Gulf Stream Extension) reveals a systematically higher correlation between SSS and sea level variability than between SST and SSH during the warmer half of the year. Within (75 degrees W-40 degrees W; 30 degrees N-50 degrees N), Chl concentration is also found to significantly depend on the SSS as SST increases above 20 degrees C.

引用

页码：3141 / 3148

页数：8

共 29 条

[1]

[Anonymous], 1981, SCIENCE, V212, P1091, DOI 10.1126/science.212.4499.1091

[2]

Bonjean F, 2002, J PHYS OCEANOGR, V32, P2938, DOI 10.1175/1520-0485(2002)032<2938:DMAAOT>2.0.CO

[3]

[4] Towards high resolution mapping of 3-D mesoscale dynamics from observations [J].

Buongiorno Nardelli, B. ;

Guinehut, S. ;

Pascual, A. ;

Drillet, Y. ;

Ruiz, S. ;

Mulet, S. .

OCEAN SCIENCE, 2012, 8 (05) :885-901

[5] Hydrodynamical modeling of oceanic vortices [J].

Carton, X .

SURVEYS IN GEOPHYSICS, 2001, 22 (03) :179-263

[6] Shelf water entrainment by Gulf Stream warm-core rings between 75°W and 50°W during 1978-1999 [J].

Chaudhuri, Ayan H. ;

Bisagni, James J. ;

Gangopadhyay, Avijit .

CONTINENTAL SHELF RESEARCH, 2009, 29 (02) :393-406

[7] SMOS Radiometer in the 1400-1427-MHz Passive Band: Impact of the RFI Environment and Approach to Its Mitigation and Cancellation [J].

Daganzo-Eusebio, Elena ;

Oliva, Roger ;

Kerr, Yann H. ;

Nieto, Sara ;

Richaume, Philippe ;

Mecklenburg, Susanne Martha .

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2013, 51 (10) :4999-5007

[8] The global ocean data assimilation experiment high-resolution sea surface temperature pilot project [J].

Donlon, C. ;

Robinson, I. ;

Casey, K. S. ;

Vazquez-Cuervo, J. ;

Armstrong, E. ;

Arino, O. ;

Gentemann, C. ;

May, D. ;

LeBorgne, P. ;

Piolle, J. ;

Barton, I. ;

Beggs, H. ;

Poulter, D. J. S. ;

Merchant, C. J. ;

Bingham, A. ;

Heinz, S. ;

Harris, A. ;

Wick, G. ;

Emery, B. ;

Minnett, P. ;

Evans, R. ;

Llewellyn-Jones, D. ;

Mutlow, C. ;

Reynolds, R. W. ;

Kawamura, H. ;

Rayner, N. .

BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY, 2007, 88 (08) :1197-1213

[9]

Fugister F.C., 1951, TELLUS, V3, P1, DOI [DOI 10.1111/J.2153-3490.1951.TB00771.X, 10.3402/tellusa.v3i1.8614]

[10] Direct interaction between the Gulf Stream and the shelfbreak south of New England [J].

Gawarkiewicz, Glen G. ;

Todd, Robert E. ;

Plueddemann, Albert J. ;

Andres, Magdalena ;

Manning, James P. .

SCIENTIFIC REPORTS, 2012, 2

← 1 2 3 →