Some useful information

Sep 14, 2003 14:56



BOM-cloud quiz



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Mr McCloud's Cloud
Quiz

"Hi
! I'm Mr McCloud.

Read through the information about clouds on the right
and then have a go at my Cloud
Quiz
."



More about Mr
McCloud

Mr McCloud shows
the four primary cloud groups - cirrus
(wispy, hair-like), strata (layers,
sheet-like), cumulus (puffy, heaped)
and nimbus (rain cloud).

He has a
cumulonimbus body with a thunderhead (he's a bit of a dunderhead and going
a bit troppo - his bald patch is pushing through the
tropopause).

He has cirrus
cloud for hair and ice crystal dandruff. His feet are made from strata
cloud. One leg is a tornado and the other is a heavy down pour of rain
(microburst).

He carries a
lightning walking stick that he uses to herd and scare people with and
lives in a cloud environment, with a cloud house and cloud car etc. He has
a cloud farm with a herd of fluffy cloud sheep.

Cloud
Classification

Clouds have names that come from Latin (an
ancient Roman language). An English naturalist Luke Howard, in 1803,
developed a classification system based on the following four main cloud
types:


  • Cumulus -
    Latin for 'heap', to describe a puffy cloud

  • Cirrus -
    Latin for 'curl of hair', to describe a wispy cloud

  • Stratus -
    Latin for 'layer', to describe a sheet-like cloud

  • Nimbus -
    Latin for 'violent rain', to describe a rain cloud.


Other clouds could be
described by combining the basic types. For example, nimbostratus is a
rain cloud that occurs in layers, whereas cumulonimbus is a rain cloud
with pronounced vertical development.

Cirrostratus is cirrus
occurring as a sheet-like cloud, and stratocumulus is a layer cloud with
some cumulus features.

There are ten principal cloud
forms which are divided into four primary cloud groups:


  1. High clouds - cirrus, cirrostratus, cirrocumulus

  2. Middle
    clouds - altostratus, altocumulus
  3. Low
    clouds - nimbostratus, stratocumulus,
    stratus
  4. Clouds with vertical
    development - cumulus,
    cumulonimbus.


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