A thermostad is a homogeneous layer of oceanic waters in terms of temperature, it is defined as a relative minimum of the vertical temperature gradient. The term was coined in 1966 by R. Carlton Seitz, at the time at the Chesapeake Bay Institute of Johns Hopkins University. He proposed it as in opposition to a thermocline, in which the thermal gradient is large. The ending "stad" is from the Greek word στάδην meaning "in an upright position", from the root ἵστημι meaning to stand.
The suffix "-stad" is now widely used in oceanography.
References
- Tsuchiya, Mizuki (1986). "Thermostads and circulation in the upper layer of the Atlantic Ocean". Progress in Oceanography. 16 (4): 235–267. Bibcode:1986PrOce..16..235T. doi:10.1016/0079-6611(86)90040-6.
- Michael S. McCartney (1977). "Subantarctic Mode Water" (PDF). In: A Voyage of Discovery: George Deacon 70th Anniversary Volume, M. V. Angel, editor, Supplement to Deep-Sea Research, Pergamon Press, Oxford, pp. 103-119.: Woods Hole Oceanographic Institute.
{{cite web}}: CS1 maint: location (link) See Publications - Dr. Michael S. McCartney. - R. Carlton Seitz (Dec 25, 1966). "Thermostad, the Antonym of Thermocline". Journal of Marine Research. 25: 203.
- "στάδην". Morphologia Graeca. en-academic.com.
- "Raymond Carlton Seitz Presented with the Albert Nelson Marquis Lifetime Achievement Award by Marquis Who's Who". 24-7 Press Release Newswire. Mar 5, 2019.
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