Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Clouds

418 views

Published on

a ppt based on the clouds and their study, the categories it is divided into, simple description including pictures.

Published in: Education
  • Be the first to comment

Clouds

  1. 1. A seminar
  2. 2. CLOUDS: definition • Clouds is a visible mass of liquid droplets or frozen crystals made of water or various chemicals suspended in the atmosphere above the surface of a planetary body. • The study of clouds, called nephology, signifies clouds into various categories, some important and widely used categories are: Cumulus Stratus Cirrus Cumulonimbus Cirrocumulus Altocumulus Stratocumulus Altostratus
  3. 3. Types of clouds
  4. 4. Cumulus Altitude- 2000m above Abbreviation-Cu • Have a noticeable development and clearly defined edges. Described often as ‘puffy’ or ‘cotton-like’ in appearance. • Often associated with instability, moisture & temperature gradient. Usually present when the air is warm.
  5. 5. Stratus Altitude- 60,000 ft above Symbol- -- • Belongs to a class categorized by horizontal layering with uniform base. Considered as ‘typical cloudy day’. • Indicate prolonged cloudy weather with drizzle. Persist for days in anti-cyclone weather.
  6. 6. Cirrus Altitude- 20,000 ft above Symbol- Ci • Characterized by thin, wispy strands, giving them their name. Generally appear in white or grey color. • Form due to outflow of tropical cyclones. Indicate weather deteoriation. Can be long enough to stretch continents.
  7. 7. Cumulonimbus Altitude- 500 to 13,000 ft Abbreviation- Cb • Very tall and dense and flat surface on top. Involved in thunderstorms and other inclement weather. • Result of atmospheric instability. Creates lighting and other severe weather conditions. Some form a single cell (or) cloud.
  8. 8. Cirrocumulus Altitude- 20,000 ft above Abbreviation- Cc • Result of parcel environment instability or temperature difference. • Consists of small amount of liquid water droplets in super cooled state. Ice crystals also a predominant component. Short-lived and have large tuft.
  9. 9. Altocumulus Altitude- 6,500 to 20,000 ft Abbreviation- Ac • Usually white or grey. Often occurs in sheets or patches with wavy rounded masses or rolls. • Signal upcoming thunderstorms. Found in warm and cold fronts of depression. • used as warning cloud by aviation industry along with cumulus and cumulonimbus.
  10. 10. Stratocumulus Altitude- 8000 ft above Abbreviation- Sc • Characterized by large dark, rounded mass usually in groups, lines or waves. Found in subtropical and polar oceans. • Signified as ‘dull weather’. They indicate storms and dull weather.
  11. 11. Altostratus Altitude- 6,500– to 20,000 ft. Abbreviation- As • Characterized generally as uniform gray to bluish-gray. Formed by a rising large air mass that condenses into cloud and spread across the horizon. • Can be composed of either water droplets or ice crystals.

×