风生海中气泡对海洋光学反射比的影响Effects of Wind-Generated Bubbles on Ocean Reflectance
杨倩,贺明霞
摘要(Abstract):
风浪破碎是海中气泡的主要成因。先前的研究基于理论计算和数值模拟,揭示了海中气泡对光散射和海水反射比有不可忽略的影响。利用海洋光学和海面风速现场观测数据,结合Mie散射理论计算和海中光辐射传递数值模拟,研究风浪破碎产生的海中气泡对海水反射比的影响。现场观测和数值模拟结果表明,在光学性质稳定的I类海水中,不同风速下海洋光学反射比的不同主要源于海中气泡的贡献。
关键词(KeyWords): 海中气泡;反射比;Mie散射;辐射传递模拟
基金项目(Foundation): 国家自然科学基金重点项目(60638020)资助
作者(Author): 杨倩,贺明霞
DOI: 10.16441/j.cnki.hdxb.2012.z1.025
参考文献(References):
- [1]Pumphrey H C,Elmore P A.The entrainment of bubbles by drop im-pacts[J].Journal of Fluid Mechanics,1990(220):539-567.
- [2]Thorpe S A.On the clouds of bubbles formed by breaking wind wavesin deep water,and their role in air-sea transfer[J].PhilosophicalTransactions of the Royal Society of London A,1982(304):155-210.
- [3]Johnson B D.Bubble populations:Background and breaking waves[M].Monahan E C,Miocail G M.Oceanic Whitecaps and their role inair-sea exchange processes,Holland:D Reidel Dordrecht,1986:69-73.
- [4]Zhang X,Lewis M R,Johnson B D.Influence of bubbles on scatteringof light in the ocean[J].Applied Optics,1998(37):6525-6536.
- [5]Terrill E J,Melville W K,Stramski D.Bubble entrainment by break-ing waves and their influence on optical scattering in the upper ocean[J].Journal of Geophysical Research,2001(106):16815-16823.
- [6]Stramski D,Tegowski J.Effects of intermittent entrainment of airbubbles by breaking wind waves on ocean reflectance and underwaterlight field[J].Journal of Geophysical Research,2001(106):31345-31360.
- [7]Zhang X,Lewis M R.The volume scattering function of natural bubblepopulations[J].Limnology and Oceanography,2002(47):1273-1282.
- [8]Zhang X,HE M-X,Yang Q,et al.Effects of winds on ocean color[C].America:Proceedings of the 2006International Geosicence andRemote Sensing Symposium(IGARSS06),2006:4056-4060.
- [9]Piskozub J,Stramski D,Terrill E,et al.Small-scale effects of under-water bubble clouds on ocean reflectance:3-D modeling results[J].Optics Express,2009(17):11747-11752.
- [10]Zhang X,Lewis M R,Bissett W P,et al.Optical influence of shipwakes[J].Applied Optics,2004,43:3122-3132.
- [11]张宇,张永刚,王华.西沙群岛附近海域船舶尾迹水体遥感反射率特性的实验测量和分析[J].热带海洋学报,2007(26):22-25.
- [12]张宇,张永刚,王华,等.二类水体中船舶含气泡尾迹海水表观光学特性的测量与分析[J].遥感学报,2008(12):15-22.
- [13]Farmer D M,Vagle S.Waveguide propagation of ambient sound inthe ocean-surface bubble layer[J].Journal of the Acoustical Societyof America,1989(86):1897-1908.
- [14]Mobley C D,Sundman L K.Hydrolight5Ecolight5Technical Docu-mentation[M].Washington:Sequoia Scientific Inc,2008:100.
- [15]Pope R M,Fry E S.Absorption spectrum(380-700nm)of pure wa-ter.Ⅱ.Integrating cavity measurements[J].Applied Optics,1997(36):8710-8723.
- [16]Morel A.Optical properties of pure water and pure sea water[M].Optical Aspects of Oceanography,New York:N G Jerlov and E SNielsen,1974:1-24.
- [17]O'Hern T J,D'Agostino L,Acosta A J.Comparison of holographicand Coulter counter measurement of cavitation nuclei in the ocean[J].Journal of Fluids Engineering,1998(110):200-207.
- [18]Hall M.A comprehensive model of wind-generated bubbles in the o-cean and predictions of the effects on sound propagation at frequenciesup to 40kHz[J].Journal of the Acoustical Society of America,1989(86):1103-1117.
- [19]Bohren C F,Huffman D R.Absorption and scattering of light bysmall particles[M].New York:Wiley,1983:541.
- [20]Zhang X.Influence of bubbles on water-leaving reflectance[D].Dal-housie:Dalhousie University,2001.
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