Bottom Mixed Layer

October 26, 2011, 10:16 am

The Bottom Mixed Layer (BML) is the middle of three layers into which the bottom 1000 meters (m) of the ocean are sometimes divided, with the other two being the Benthic Nepheloid Layer (BNL) and the Bottom Ekman Layer (BEL).

This article is written at a definitional level only. Authors wishing to expand this entry are inivited to expand the present treatment, which additions will be peer reviewed prior to publication of any expansion.

The thickness of the BML typically ranges from 20 to 80 m, although values between ten to 150 m have been observed. The particle concentration within the BML is usually homogeneously mixed, although occasional episodes of local resuspension by strong bottom flows can change this.

See also

Further reading

  • Physical Oceanography Index
  • H. Klein and E. Mittelstaedt. Currents and dispersion in the abyssal Northeast Atlantic. Results from the NOAMP field program. DSR, 39:1727–1745, 1992.


(2011). Bottom Mixed Layer. Retrieved from


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