World Library  

Add to Book Shelf
Flag as Inappropriate
Email this Book

Modal Composition of the Central Water in the North Atlantic Subtropical Gyre : Volume 6, Issue 3 (29/10/2009)

By Cianca, A.

Click here to view

Book Id: WPLBN0004021086
Format Type: PDF Article :
File Size: Pages 20
Reproduction Date: 2015

Title: Modal Composition of the Central Water in the North Atlantic Subtropical Gyre : Volume 6, Issue 3 (29/10/2009)  
Author: Cianca, A.
Volume: Vol. 6, Issue 3
Language: English
Subject: Science, Ocean, Science
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


APA MLA Chicago

Marrero, J. P., Rueda, M. J., Santana, R., Cianca, A., & Llinás, O. (2009). Modal Composition of the Central Water in the North Atlantic Subtropical Gyre : Volume 6, Issue 3 (29/10/2009). Retrieved from

Description: Instituto Canario de Ciencias Marinas (ICCM), Gobierno de Canarias, Apartado 56, Telde, 35200, Spain. The modal composition of the Central Water in the North Atlantic subtropical gyre is not clearly defined, as there are some uncertainties related to mode identification, as well as modes which are not well documented. This study shows that eastern North Atlantic Central Water (eastern NACW) in the subtropical gyre is composed of three modes: The North Atlantic Subpolar Mode Water (NASPMW Σt=27.1 to 27.3), the Madeira Mode Water (MMW Σt=26.4 to 26.6), and the mode water with a Σt near 27.0, which is currently not well documented. We confirmed this mode based on the similarities found between it and the mode waters already reported. The similarities were determined from comparative analyses of the temperature/salinity standard curves and the gradients of the potential density anomalies of two concurrent data sets from two subtropical time-series stations (Bermuda Atlantic Time-series Study, BATS, in the west, and European Station for Time-series in the Ocean Canary Islands, ESTOC, in the east). In order to establish the outcropping regions, the corresponding pycnostads were determined using another climatologic data set (World Ocean Database, WOD2005). In this case, the pycnostads were located based on the presence of standard deviation minima from the average density anomalies. Finally, we confirmed that the pycnostads corresponded to the temperature values related to the modes by overlaying the characteristic modal isotherm of each of the modes in the geographic distribution of the pycnostads. Sea surface temperature data (SST) from the Ocean Pathfinder Program (OPP) were used to estimate the isotherms. The results showed a clear correspondence between the modal isotherms and the pycnostads, for both the modes that have already been documented and the mode confirmed in this study.

Modal composition of the central water in the North Atlantic subtropical gyre

Siedler, G., Kuhl, A., and Zenk, W.: The Madeira Mode Water, J. Phys. Oceanogr., 17, 1561–1570, 1987.; Fiúza, A.: Hidrologia e Dinámica das Aguas Costeiras de Portugal, Doctoral thesis, Departamento de Física e Centro de Geofísica, Universidade de Lisboa, Lisboa, 294 pp., 1984.; Fraga, F.: Oceanografía química de la región de afloramiento del noroeste de Africa 1., Resultados Expediciones Científicas del B/O Cornide, 2, 13–52, 1973.; Schröeder, E. H., Stommel, H., Menzel, D. W., and Sutcliffe, W. H. J.: Climate stability of eigtheen degree water at Bermuda, J. Geophys. Res., 64, 363–366, 1959.; Fraga, F., Mourino, C., and Manríquez, M.: Las masas de agua en la costa de Galicia: junio–octubre, Instituto de investigaciones pesqueras, Res. Exp. Cient., 10, 51–77, 1982.; Hanawa, K. and Talley, L. D.: Mode Waters, in: Ocean Circulation and Climate, edited by: Siedler, G., Church, J., and Gould, J., Academic Press, San Diego, 373–386, 2001.; Harvey, J.: [theta]-S relationships and water masses in the eastern North Atlantic, Deep.-Sea. Res., 29, 1021–1033, 1982.; Harvey, J. and Arhan, M.: The Water Masses of the Central North Atlantic in 1983–84, J. Phys. Oceanogr., 18, 1855–1875, 1988.; Keffer, T.: The ventilation of the World's oceans: Maps of the potential vorticity field, J. Phys. Oceanogr., 15, 509–523, 1985.; Kilpatrick, K. A., Podesta, G. P., and Evans, R.: Overview of the NOAA/NASA advanced very high resolution radiometer pathfinder algorithm for sea surface temperature and associated matchup database, J. Geophys. Res., 106(C5), 9179–9197, 2001.; Llinás, O., Rodríguez de León, A., Siedler, G., and Wefer, G.: ESTOC Data Report 94, Informes técnicos del Instituto Canario de Ciencias Marinas, Telde, 72 pp., 1997.; Llinás, O., Rodriguez de Leon, A., Siedler, G., and Wefer, G.: ESTOC Data Report 95/96, Instituto Canario de Ciencias Marinas, Telde, 152 pp., 1999.; Llinás, O., Rueda, M. J., Pérez Marrero, J., Pérez-Martell, E., Santana, R., Villagarcía, M. G., Cianca, A., Godoy, J., and Maroto, L.: Variability of the Antarctic intermediate waters in the Northern Canary Box, Deep.-Sea. Res. Pt. II, 49, 3441–3453, 2002.; Marshall, J. C., Nurser, A. J. G., and Williams, R. G.: Inferring the Subduction Rate and Period over the North Atlantic, J. Phys. Oceanogr., 23, 1315–1329, 1993.; Masuzawa, J.: Subtropical mode water, Deep.-Sea. Res. and Oceanographic Abstracts, 16, 463–472, 1969.; McCartney, M. S.: Subantarctic Mode Water, in: A voyage of Discovery, George Deacon 70th Anniversary Volume, edited by: Angel, M., Pergamon Press, Oxford, 103–119, 1977.; McCartney, M. S. and Talley, L. D.: The Subpolar Mode Water of the North Atlantic Ocean, J. Phys. Oceanogr., 12, 1169–1188, 1982.; McDowell, S., Rhines, P., and Keffer, T.: North Atlantic Potential Vorticity and Its Relation to the General Circulation, J. Phys. Oceanogr., 12, 1417–1436, 1982.; Michaels, A. F.: Ocean time series research near Bermuda: The Hydrostation S time-series and the Bermuda Atlantic Time-series Study (BATS) program, in: Ecological Time Series, edited by: Powell, T. M. and Steele, J. H., Chapman and Hall, New York, 181–208, 1995.; Michaels, A. F. and Knap, A. H.: Overview of the US JGOFS Bermuda Atlantic Time-series Study and the Hydrostation S program, Deep.-Sea. Res. Pt. II, 43, 157–198, 1996.; Oliveira, P. B., Peliz, Á., Dubert, J., Rosa, T. L., and Santos, A. M. P.: Winter geostrophic currents and eddies in the western Iberia coastal transition zone, Deep.-Sea. Res. Pt. I, 51, 367–384, 2004.; Paillet, J. and Arhan, M.: Shallow Pycnoclines and Mode Water Subduction in the Eastern North Atlantic, J. Phys. Oceanogr., 26, 96–114, 1996.; Palter, J. B., Lozier, M. S., and Barber, R. T.: The effect of advection on the nutrient reservoir in the North Atlantic subtropical gyre, Nature, 437, 687–692, 2005.; Peliz, Ã., Dubert, J., Haidvogel, D. B., and Le Cann, B.: Generation and unstable evolution of a density-driven Eastern Poleward Current: The Iberian


Click To View

Additional Books

  • A Semi-analytical Model for Diffuse Refl... (by )
  • Experiments with the Secchi Disk : Volum... (by )
  • Recirculation in the Fram Strait and Tra... (by )
  • Long Term Trends in the Sea Surface Temp... (by )
  • Modelling Approach to the Assessment of ... (by )
  • Impact of the Indonesian Throughflow on ... (by )
  • Technical Note: Watershed Strategy for O... (by )
  • A New Method for Forming Approximately N... (by )
  • Oil Spills Prediction in the Bonifacio S... (by )
  • Detecting Marine Hazardous Substances an... (by )
  • Salinity-induced Mixed and Barrier Layer... (by )
  • Thermohaline Properties in the Eastern M... (by )
Scroll Left
Scroll Right


Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Fair are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.