OBSERVATION ON CHEMICAL COMPOSITION OF SUPERCOOLED CLOUD AND SNOW

The results of analyses of chemical composition for supercooled cloud and snow collected at Yellow Mountain have shown that the clouds prevailing wind, SW,W, NW have a pH of less than 5,6 while snow and local clouds have a pH of larger than 7.0. The maximum of pH and the minimum of S042- appear at the middle position of the clouds. Comparing to supercooled cloud snow has a characteristic of a larger pH and lower ions concentration.