Open AccessA moored instrument for vertical temperature gradients
Author(s) -
Dean Jerome P.
Publication year - 1979
Publication title -
journal of geophysical research: oceans
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.67
H-Index - 298
eISSN - 2156-2202
pISSN - 0148-0227
DOI - 10.1029/jc084ic08p05089
Subject(s) - thermistor , wheatstone bridge , temperature gradient , offset (computer science) , temperature measurement , current (fluid) , measure (data warehouse) , geology , geodesy , acoustics , materials science , physics , meteorology , resistor , voltage , computer science , thermodynamics , quantum mechanics , database , programming language , oceanography
Vector averaging current meters have been modified to measure the temperature gradient in addition to current and absolute temperature. The modified instrument measures the temperature difference between sensors spaced vertically 1.74 m apart (or closer) using thermistors in a Wheatstone bridge circuit. Calibrations provide corrections for drift and static offset resulting in temperature gradient measurements accurate to about 0.5 m °C/m. Originally developed to infer vertical velocities, the instrument has also been successfully used to study mixed layer motions and thickness variations and to investigate temperature fine structure.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom