>自然降雨和人类之间差异存在什么“雨”?唯一的身体可测量的区别从播种云和雨非种子的种子/云凝结核/气溶胶表面水分可以凝结并形成云滴。# # # #你可以收集雨水,测量蒸发,剩下的固体物质作为云凝结核。这个过程将会得到一些从环境空气气溶胶,但同时使用一个设备从雨水收集气溶胶和减少他们的成分会减轻这个问题。在分析固体可以做一些猜测气溶胶是否自然或受人类的影响。例如如果是故意云种散播发生你会发现碘化银的痕迹。最有可能的情况并非如此,只是严重污染气溶胶的形成产生重大影响,可以作为云凝结核。在这种情况下,有可能某些化合物可以形成只有在燃烧过程和发现将意味着他们在云层的形成发挥了一定的作用。做这个实验在其他类似的位置与其他拥有更多的污染可能是最明智的选择。即使这一切你还不能准确地判断或多或少会下雨了没有污染。 If the air is clean to begin with, adding pollution and thus aerosols the cloud formation would be enhanced and probably then rain too. But if the air already has enough cloud condensation nuclei to begin with then adding aerosols might have the opposite effect; moisture would condense into many small droplets rather a few big ones that create rain. ## Modelling ## Another possibility would be to study this using a weather model with aerosol dynamics included using measurements of the given location to verify the results. And when the model simulates the reality accurately enough you could tamper with the aerosol fields (by adding and reducing aerosols) and see how the rain is affected. I'm not aware how accurate these kind of models are currently, but aerosol dynamics can make the model easily very heavy.