Part one of term paper
NEWSCIENCE If you know where and when to look, you can treat yourself to a colourful display of atmospheric haloes, spots and pillars. These images can tell you something about the clouds overhead and possible changes in the weather. All of these images are created by light shining through cirrostratus clouds. These clouds occur at an alt ...

Part two of term paper
... for producing most of the commonly see haloes-plate crystals, columns, capped columns and bullets. The most obvious halo is found around the sun. If the layer of cirrostratus is extensive, you'll see an entire ring. Within the layer of cloud, sunlight is striking and passing through the sides of randomly- oriented ice crystals. As the sunlight passes through each crystal, the light changes direction, or refracts. The radius of the hale depends on the amount of change in the direction of the sun ...