Aquarius Maps: Sea Surface Density

  • Sea surface density, August 2011

    August 2011

  • Sea surface density, September 2011

    September 2011

  • Sea surface density, October 2011

    October 2011

  • Sea surface density, November 2011

    November 2011

  • Sea surface density, December 2011

    December 2011

  • Sea surface density, January 2012

    January 2012

  • Sea surface density, February 2012

    February 2012

  • Sea surface density, March 2012

    March 2012

  • Sea surface density, April 2012

    April 2012

  • Sea surface density, May 2012

    May 2012

  • Sea surface density, June 2012

    June 2012

  • Sea surface density, July 2012

    July 2012

  • Sea surface density, August 2012

    August 2012

  • Sea surface density, September 2012

    September 2012

  • Sea surface density, October 2012

    October 2012

  • Sea surface density, November 2012

    November 2012

  • Sea surface density, December 2012

    December 2012

  • Sea surface density, January 2013

    January 2013

  • Sea surface density, February 2013

    February 2013

  • Sea surface density, March 2013

    March 2013

  • Sea surface density, April 2013

    April 2013

  • Sea surface density, May 2013

    May 2013

  • Sea surface density, June 2013

    June 2013

  • Sea surface density, July 2013

    July 2013

  • Sea surface density, August 2013

    August 2013

  • Sea surface density, September 2013

    September 2013

  • Sea surface density, October 2013

    October 2013

  • Sea surface density, November 2013

    November 2013

  • Sea surface density, December 2013

    December 2013

  • Sea surface density, January 2014

    January 2014

  • Sea surface density, February 2014

    February 2014

  • Sea surface density, March 2014

    March 2014

  • Sea surface density, April 2014

    April 2014

  • Sea surface density, May 2014

    May 2014

  • Sea surface density, June 2014

    June 2014

  • Sea surface density, July 2014

    July 2014

  • Sea surface density, August 2014

    August 2014

  • Sea surface density, September 2014

    September 2014

  • Sea surface density, October 2014

    October 2014

  • Sea surface density, November 2014

    November 2014

  • Sea surface density, December 2014

    December 2014

  • Sea surface density, January 2015

    January 2015

  • Sea surface density, February 2015

    February 2015

  • Sea surface density, March 2015

    March 2015

  • Sea surface density, April 2015

    April 2015

  • Sea surface density, May 2015

    May 2015

  • Sea surface density, June 2015

    June 2015

  • Credit
  • Credit
Slideshow: Monthly composite maps of sea surface density (hover over images to pause the slideshow).

Monthly sea surface density map images, derived from Aquarius science products V5, are available here. These are produced from Aquarius sea surface salinity and ancillary sea surface temperature using TEOS-10 equation of state (McDougall and Barker, 2011). Click on the images (below) for a closer view.

In these maps, orange regions have higher density and purple regions have lower density. Seawater density is determined by its temperature and salinity. Surface seawater temperature varies widely over the globe (-1°C to 30°C), while seawater's overall salinity range is relatively small (see monthly salinity maps).

The information on these maps is important because the density characteristics of a parcel of seawater are determined while it is at the sea surface. As water parcels sink and move through the ocean, their densities will be modified by mixing with other parcels of seawater. However, if the density signatures of all the end member water masses are known, this mixing can be "unraveled" to determine the proportions of their various source waters.

Sea surface density, June 2015
June 2015
Sea surface density, May 2015
May 2015
Sea surface density, April 2015
April 2015
Sea surface density, March 2015
March 2015
Sea surface density, February 2015
February 2015
Sea surface density, January 2015
January 2015
Sea surface density, December 2014
December 2014
Sea surface density, November 2014
November 2014
Sea surface density, October 2014
October 2014
Sea surface density, September 2014
September 2014
Sea surface density, August 2014
August 2014
Sea surface density, July 2014
July 2014
Sea surface density, June 2014
June 2014
Sea surface density, May 2014
May 2014
Sea surface density, April 2014
April 2014
Sea surface density, March 2014
March 2014
Sea surface density, February 2014
February 2014
Sea surface density, January 2014
January 2014
Sea surface density, December 2013
December 2013
Sea surface density, November 2013
November 2013
Sea surface density, October 2013
October 2013
Sea surface density, September 2013
September 2013
Sea surface density, August 2013
August 2013
Sea surface density, July 2013
July 2013
Sea surface density, June 2013
June 2013
Sea surface density, May 2013
May 2013
Sea surface density, April 2013
April 2013
Sea surface density, March 2013
March 2013
Sea surface density, February 2013
February 2013
Sea surface density, January 2013
January 2013
Sea surface density, December 2012
December 2012
Sea surface density, November 2012
November 2012
Sea surface density, October 2012
October 2012
Sea surface density, September 2012
September 2012
Sea surface density, August 2012
August 2012
Sea surface density, July 2012
July 2012
Sea surface density, June 2012
June 2012
Sea surface density, May 2012
May 2012
Sea surface density, April 2012
April 2012
Sea surface density, March 2012
March 2012
Sea surface density, February 2012
February 2012
Sea surface density, January 2012
January 2012
Sea surface density, December 2011
December 2011
Sea surface density, November 2011
November 2011
Sea surface density, October 2011
October 2011
Sea surface density, September 2011
September 2011
Sea surface density, August 2011
August 2011
Colorbar
Publications
McDougall, T.J. and P.M. Barker. 2011. Getting Started With TEOS-10 and the Gibbs Seawater (GSW) Oceanographic Toolbox, SCOR/IAPSO WG127, 28 pp., ISBN 978-0-646-55621-5.