地表热流（surface heat flow）是指地球在单位时间内通过单位面积流出的热量（能量），又称地球表面热流密度。
结果表明，与地幔内部密度异常产生的热效应相比，运动的板块及其激发的地幔流动在全球地表观测热流的产生和分布特征上起着更为重要的作用。
Results show that the thermal effect of plate motion driven mantle flow and its contribution to the observed heat flow is greater than that due to internal density anomaly (tomography based).
根据雪面温度域以及热流的周期性特点，在雪地表面热平衡方程的基础上，建立了雪面辐射温度的傅里叶模型。
Based on the heat balance equation of snow surface and the periodic variations of temperature field and heat flow, the Fourier model of snow surface is established.
海盆区地幔热流在地表实测大地热流中所占比例高于80 %，地壳下部热流在地壳总热流中所占比例小于2 0 %。
The percentage of heat flow from mantle is bigger than 80% in terrestrial heat flow, whereas the percentage of lower crustal heat flow is smaller than 20% in terrestrial heat flow.
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