Solar radiation transport in the cloudy atmosphere: a 3D perspective on observations and climate impacts

摘要: The interplay of sunlight with clouds is a ubiquitous and often pleasant visual experience, but it conjures up major challenges for weather, climate, environmental science beyond. Those engaged in the characterization (and clear air nearby) by remote sensing methods are even more confronted. problem comes, on one hand, from spatial complexity real and, other dominance multiple scattering radiation transport. former ingredient contrasts sharply still popular representation as homogeneous plane-parallel slabs purposes radiative transfer computations. In typical cloud scenes opposite asymptotic transport regimes diffusion ballistic propagation coexist. We survey three-dimensional (3D) atmospheric literature over past 50 years identify three concurrent intertwining thrusts: first, how to assess damage (bias) caused 3D effects operational 1D models? Second, mitigate this damage? Finally, can we exploit phenomena innovate observation technologies? quickly realize that smallest scale resolved computationally or observationally may be artificial nonetheless key quantity separates solutions into two broad complementary classes: stochastic deterministic. Both approaches draw classic contemporary statistical, mathematical computational physics.