Measuring the Sea Surface Heat Flux and Probability Distribution of Surface Renewal Events
Measuring the Sea Surface Heat Flux and Probability Distribution of Surface Renewal Events
复制标题
测量海面热通量和表面更新事件的概率分布
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
H. Haussecker
中科院分区：
文献类型：
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作者：
C. Garbe;B. Jähne;H. Haussecker
海面净热通量是定量测量海气交换率以及气候模型和模拟的关键参数。目前用于测量热通量的技术是基于直接辐射方案和微气象参数化。气象估计所需的长时间平均值往往掩盖了短时间和空间尺度的事件。我们的技术使用一个单一的红外摄像机，以定量地估计表面更新模型的参数的热transfer.Through使用时空图像处理技术的海洋表面温度相对于时间的材料导数可以用来计算热通量密度，以及概率密度函数的下垫面更新模型。我们的技术在海德堡Aeolotron获得的第一个结果显示出良好的协议地面实况数据。
The net sea surface heat flux is a crucial parameter for quantitative measurements of air-sea gas exchange rates, as well as for climate models and simulations. Current techniques used to measure heat fluxes are based on direct radiative schemes and micro-meteorological parameterizations. The long time averages required by the meteorological estimates tend to obscure short time and space scale events. Our technique uses a single infrared camera in order to quantitatively estimate the parameters of a surface renewal model of heat transfer.Through the use of spatio-temporal image processing techniques the material derivative of the sea surface temperature with respect to time can be used to compute both the heat flux density, as well as the probability density function of the underlying surface renewal model. First results of our technique obtained at the Heidelberg Aeolotron showed excellent agreement to ground truth data.