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Mean ocean stratification
Fig. 11.9: N/f_ref at a depth of 200m
![Click for options and more information Click for options and more information](http://iridl.ldeo.columbia.edu/expert/SOURCES/.LEVITUS94/.ANNUAL/potdens/potdens/Z/partial[Z]regridLinear/9.81/mul/sqrt/9.9999997E-05/div//long_name/(N/f_ref)def/a-++halfgreyscale+-a-++-a+X+Y+fig:+colors+contours+land+:fig+//sqrt/13.5176/200/plotrange//sqrt/13.5176/200/plotrange//Z/200./plotvalue/X/91.25/521.25/plotrange/Y/-90/90/plotrange+//plotaxislength+700+psdef//plotborder+72+psdef//XOVY+null+psdef//fntsze+16+psdef+.gif)
![](http://iridl.ldeo.columbia.edu/expert/SOURCES/.LEVITUS94/.ANNUAL/potdens/potdens/Z/partial[Z]regridLinear/9.81/mul/sqrt/9.9999997E-05/div//long_name/(N/f_ref)def/a-++halfgreyscale+-a-++-a+X+Y+fig:+colors+contours+land+:fig+.auxfig+//sqrt/13.5176/200/plotrange//sqrt/13.5176/200/plotrange//Z/200./plotvalue/X/91.25/521.25/plotrange/Y/-90/90/plotrange+//plotaxislength+700+psdef//plotborder+72+psdef//XOVY+null+psdef//fntsze+16+psdef+.gif)
Fig.10.24 (left): f x N**2 (normalized) on 26.5 surface in the Pacific
![Click for options and more information Click for options and more information](http://iridl.ldeo.columbia.edu/expert/SOURCES/.LEVITUS94/.ANNUAL/potdens/potdens/Z/partial[Z]regridLinear/X/Y/12/SM121/Y/sind/mul/2./mul/7.2700001E-05/mul/0.002/div/500/mul/9.9999997E-05/div/exch/Z/0.0263/toS/DATA++-1+-.8+-.6+-.5+-.4+-.2+.2+.4+.5+.7+.9++VALUES+X+Y+fig-+contours+land+-fig+//aprod/-1/1/plotrange/X/90./290./plotrange/Y/-90/90/plotrange+//plotaxislength+700+psdef//plotborder+72+psdef//XOVY+null+psdef//fntsze+16+psdef+.gif)
Fig.10.24 (right): f x N**2 (normalized) on 27.5 surface in the Pacific
![Click for options and more information Click for options and more information](http://iridl.ldeo.columbia.edu/expert/SOURCES/.LEVITUS94/.ANNUAL/potdens/potdens/Z/partial[Z]regridLinear/X/Y/30/SM121/Y/sind/mul/2./mul/7.2700001E-05/mul/0.002/div/500/mul/9.9999997E-05/div/abs/exch/Z/0.0274/toS/DATA+-0.02+-0.04+-0.06+-0.08+-0.1+-0.12+-0.14+-0.16+-0.18+-1+-2+-3+-4+0.02+0.04+0.06+0.08+0.1+0.12+0.14+0.18+0.22+0.26+0.3+0.34+0.38+0.42+0.5+0.6+0.7++VALUES+X+Y+fig-+contours+land+-fig+//aprod/-1/1/plotrange/X/90./290./plotrange/Y/-90/90/plotrange+//plotaxislength+700+psdef//plotborder+72+psdef//XOVY+null+psdef//fntsze+16+psdef+.gif)
f x N**2 (normalized) on 26.5 surface in the Atlantic
![Click for options and more information Click for options and more information](http://iridl.ldeo.columbia.edu/expert/SOURCES/.LEVITUS94/.ANNUAL/potdens/potdens/Z/partial[Z]regridLinear/Y/sind/mul/2./mul/7.2700001E-05/mul/0.002/div/500/mul/9.9999997E-05/div/exch/Z/0.0265/toS/DATA++-1+-.8+-.6+-.4+-.2+.2+.4+.6+.8+1+VALUES+X+Y+fig-+contours+land+-fig+X/260./400./plotrange/Y/-90/90/plotrange+//plotaxislength+700+psdef//plotborder+72+psdef//XOVY+null+psdef//fntsze+16+psdef+.gif)
f x N**2 (normalized) on 27.4 surface in the Atlantic
![Click for options and more information Click for options and more information](http://iridl.ldeo.columbia.edu/expert/SOURCES/.LEVITUS94/.ANNUAL/potdens/potdens/Z/partial[Z]regridLinear/X/Y/8/SM121/Y/sind/mul/2./mul/7.2700001E-05/mul/0.002/div/500/mul/9.9999997E-05/div/exch/Z/0.0274/toS/DATA+-0.02+-0.04+-0.06+-0.08+-0.1+-0.12+-0.14+-0.16+-0.18+-0.2+-0.3+-0.4+-0.5+-0.6+-0.7+-1+-2+-3+-4+0.02+0.04+0.06+0.08+0.1+0.12+0.14+0.18+0.22+0.26+0.3+0.34+0.38+0.42+0.5+0.6+0.7+VALUES+X+Y+fig-+contours+land+-fig+//aprod/-0.5/0.5/plotrange/X/260./400./plotrange/Y/-90/90/plotrange+//plotaxislength+700+psdef//plotborder+72+psdef//XOVY+null+psdef//fntsze+16+psdef+.gif)