The air must reach 100 percent relative humidity (when the temperature and dew point are the same) in order for condensation to occur. Temperature and dew point also play a role in cloud formation. ![]() Once water condenses on the nuclei, the overall cloud droplet is typically 100 times larger than the nuclei. Cloud condensation nuclei can be various things, from wildfire smoke to ocean spray to windblown dirt, but the key is they must be very small, about one micron (one one-thousandth of a millimeter) in size and hygroscopic (they attract water). Per NOAA, water molecules need something to attach to in order to condense - these objects are cloud condensation nuclei. There is always water in the Earth's atmosphere, so it's not just the presence of water that creates clouds. The formation of clouds requires the right combination of ingredients and conditions. (Image credit: abdelhakim titous / 500px via Getty Images) Clouds play a crucial role in our planet's habitability.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |