Estimate of turbulent energy dissipation rate using free-fall and CTD-attached fast-response thermistors in weak ocean turbulence
Estimate of turbulent energy dissipation rate using free-fall and CTD-attached fast-response thermistors in weak ocean turbulence
复制标题
使用自由落体和 CTD 快速响应热敏电阻估计弱海洋湍流中的湍流能量耗散率
DOI:
10.1007/s10872-020-00574-2
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发表时间:
2021
影响因子:
2.3
通讯作者:
Sasano Daisuke
中科院分区:
文献类型:
--
作者:
Yasuda Ichiro;Fujio Shinzou;Yanagimoto Daigo;Lee KeungJong;Sasaki Yusuke;Zhai Shuo;Tanaka Mamoru;Itoh Sachihiko;Tanaka Takahiro;Hasegawa Daisuke;Goto Yasutaka;Sasano Daisuke
The measurement of turbulence is necessary to quantify the vertical, diapycnal transport of heat, water and substances influencing climate, nutrient supply and marine ecosystems. As specialist instrumentation and ship-time are required to conduct microstructure measurements to quantify turbulence intensity, there is a need for more inexpensive and easy measurement methods. This study demonstrated that the turbulent energy dissipation rate,ε, estimated from fast-response thermistors Fastip Probe model 07 (FP07) with the depth-average of a > 10 m depth interval well agreed with those from current shear probes to a range of 10–11W/kg (m2s−3) in the two casts of the most accurate and stable free-fall vertical microstructure profiler, VMP6000 in the Oyashio water. This range cannot be measured with velocity shear probes equipped in smaller profilers in which the lower limit ofε> O (10–10) W/kg. These results extend turbulence measurements using the FP07 to 10–11W/kg. They may be especially useful for turbulence observations in deep oceans whereεis generally weak (< 10–10W/kg). As FP07 are much less sensitive to instrument vibrations than current shear and may be attached to various observational platforms such as temperature-conductivity-depth (CTD) profilers and floats. The CTD-attached FP07 observations near the VMP6000 profiles demonstrated their capabilities in theεrange of 10–11–10–8W/kg by data screening using acriterion (1 s mean lowering ratem/s and its standard deviation) under rough conditions where the cast-mean0.07 m/s and the standard deviation ofin each cast>0.05 m/s.
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DOI:
--
发表时间:
2012
期刊:
影响因子:
--
作者:
Yuki Tanaka;I. Yasuda;H. Hasumi;H. Tatebe;S. Osafune
通讯作者:
S. Osafune
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
Hasumi;H
通讯作者:
H
影响因子:
4.6
作者:
KRAICHNAN, RH
通讯作者:
KRAICHNAN, RH
影响因子:
4.6
作者:
Goto Y;Yasuda I;Nagasawa M;Kouketsu S;Nakano T
通讯作者:
Nakano T
影响因子:
3.5
作者:
Bogucki, D. J.;Luo, H.;Domaradzki, J. A.
通讯作者:
Domaradzki, J. A.