Turbulence and turbulent fluxes over the Indian Ocean
Bunker, Andrew F.
MetadataShow full item record
KeywordInternational Indian Ocean Expedition (1960-1965); Eddy flux; Turbulence; Aeronautics in oceanography
A C-54Q aircraft equipped with meteorological instruments was flown three times to India to participate in the International Indian Ocean Expedition. Flights were made out of Bombay, Gan, and Aden to observe winds, temperatures, humidities, clouds, radiation, carbon dioxide, tritium, turbulence, and turbulent fluxes of heat, water vapor, momentum and kinetic energy. The present paper reports the values of 405 measurements of the turbulence and turbulent fluxes and interprets them in terms of the monsoon circulation and the effect upon currents and temperatures of the Arabian Sea. Analyses of other data have been reported and interpreted elsewhere. The aircraft turbulence measuring system used was developed earlier by Bunker (1955) (1960). It consisted of a vertical accelerometer, a strain-guage air-speed transducer, a vertical gyro, a platinum wire thermometer and a microwave refractometer for humidity measurements. The data was recorded on a nine-channel oscillograph. A digitizing reader was used to read and punch the data on cards. The turbulent quantities and fluxes were computed and tabulated by machine. The accuracy and limitations of the system are discussed. While much is left to be desired in terms of accuracies and spectral range, the results are meteorologically useful and comparison shows good agreement with other techniques.
Originally issued as Reference No. 68-62, series later renamed WHOI-.
Suggested CitationTechnical Report: Bunker, Andrew F., "Turbulence and turbulent fluxes over the Indian Ocean", 1968-09, DOI:10.1575/1912/5874, https://hdl.handle.net/1912/5874
Showing items related by title, author, creator and subject.
Sloyan, Bernadette M. (American Geophysical Union, 2006-02-15)Net northward transport below γn > 28.1 kgm−3 (≈3200 m) into the Perth Basin of between 4.4 and 5.8 Sv is estimated from a year-long current meter mooring array between the Broken and Naturaliste Plateaus. Northward ...
Multidecadal Indian Ocean variability linked to the Pacific and implications for preconditioning Indian Ocean dipole events Ummenhofer, Caroline C.; Biastoch, Arne; Böning, Claus W. (American Meteorological Society, 2017-02-15)The Indian Ocean has sustained robust surface warming in recent decades, but the role of multidecadal variability remains unclear. Using ocean model hindcasts, characteristics of low-frequency Indian Ocean temperature ...
Kukulka, Tobias; Plueddemann, Albert J.; Sullivan, Peter P. (John Wiley & Sons, 2013-07-30)Diurnal restratification of the ocean surface boundary layer (OSBL) represents a competition between mixing of the OSBL and solar heating. Langmuir turbulence (LT) is a mixing process in the OSBL, driven by wind and surface ...