Laboratory measurements of the effects of viscosity on short water wave spectra and implication for radar remote sensing of the ocean surface

Zheng Quan-an; Yan Xiao-hai; Vic Klemas; Norden E. Huang; Pan Jia-yi; Yuan Ye-li

doi:10.1007/BF02850519

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Laboratory measurements of the effects of viscosity on short water wave spectra and implication for radar remote sensing of the ocean surface

OriginalPaper | Updated：2023-05-16

- Laboratory measurements of the effects of viscosity on short water wave spectra and implication for radar remote sensing of the ocean surface
- Laboratory measurements of the effects of viscosity on short water wave spectra and implication for radar remote sensing of the ocean surface
- 海洋湖沼学报（英文） 1995年13卷第3期页码：193-205
- Affiliations：
  
  1. Center for Remote Sensing College of Marine Studies
  2. Laboratory of Oceans
  3. The First Institute of Oceanography State Oceanic Administration
- Author bio：
- Funds：
- DOI：10.1007/BF02850519
  中图分类号：
- 纸质出版：1995
- Accepted：
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Laboratory measurements of the effects of viscosity on short water wave spectra and implication for radar remote sensing of the ocean surface[J]. 海洋湖沼学报（英文）, 1995,13(3):193-205.

Quan-an, Z., Xiao-hai, Y., Klemas, V. et al. Laboratory measurements of the effects of viscosity on short water wave spectra and implication for radar remote sensing of the ocean surface., Chin. J. Ocean. Limnol. 13, 193–205 (1995). https://doi.org/10.1007/BF02850519
Laboratory measurements of the effects of viscosity on short water wave spectra and implication for radar remote sensing of the ocean surface[J]. 海洋湖沼学报（英文）, 1995,13(3):193-205. DOI： 10.1007/BF02850519.

Quan-an, Z., Xiao-hai, Y., Klemas, V. et al. Laboratory measurements of the effects of viscosity on short water wave spectra and implication for radar remote sensing of the ocean surface., Chin. J. Ocean. Limnol. 13, 193–205 (1995). https://doi.org/10.1007/BF02850519 DOI：

摘要

Abstract

Using an X-band radar and a mechanical short wave generator

we measured the dependence of radar return power on the viscosity of water which was adjusted by changing the water temperature. From the measurements we drew two inferences: (1) the spectral density of short water waves

depends strongly on the viscosity of water $$F(v) = F_0 \tilde v^m $$ where $$\tilde v$$ is normalized viscosity

andm=−1.72; and (2) the normalized radar cross section

σ 0(dB)

depends strongly on the water temperature $$\Delta \sigma _0 (dB) = 0.217 \Delta T$$ Analyses indicate that these dependencies can be observed in the field only at low wind conditions at which the Bragg scattering is a dominant mechanism for producing the radar return signals. The results of this study can be used to interpret the sharp variability in radar cross section across a water temperature front and SAR images of oceanic phenomena.

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references

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