What are isotherms, isobars, front, prevailing wind, doldrums, and cirrus?
Isobars and isotherms are both lines on a weather map that represent the patterns of pressure and
temperature.
They show how the temperatures and pressure are changing over space and so help describe
the large-scale weather patterns across a region in the map.
temperature.
They show how the temperatures and pressure are changing over space and so help describe
the large-scale weather patterns across a region in the map.
(This picture is from weather online.co.nz)
Front.
Prevailing winds are winds that blow from a single direction over a specific area of the earth.
Areas where prevailing winds meet are called convergence zones.
Areas where prevailing winds meet are called convergence zones.
(This picture is from wikipedia)
Doldrums are located a little north of the equator,
but the effects can be felt from way over 5 degrees north of the equator to 5 degrees south of it.
The trade winds border the Doldrums both to the north and south.
Then there are the prevailing westerlies in the higher latitudes and the polar easterlies near both poles.
but the effects can be felt from way over 5 degrees north of the equator to 5 degrees south of it.
The trade winds border the Doldrums both to the north and south.
Then there are the prevailing westerlies in the higher latitudes and the polar easterlies near both poles.
(This picture is from met office)
Cirrus clouds form from the rise of dry air,
making the small quantity of water vapour in the air which undertakes deposition into ice
(to change from a gas directly into a solid).
Cirrus is made up completely of ice crystals,
which provides their white colour and form in a wide range of shapes and sizes.
making the small quantity of water vapour in the air which undertakes deposition into ice
(to change from a gas directly into a solid).
Cirrus is made up completely of ice crystals,
which provides their white colour and form in a wide range of shapes and sizes.
I enjoyed reading your weather information. It was interesting because I had only ever heard of
ReplyDeleteThe Doldrums before as an old expression ‘down in the doldrums’ which means someone is feeling dull and listless. So it was fascinating to find out that it is actually a body of water that is so stagnant and calm there is no wind. Often ships couldn’t sail at all and it was extremely dangerous to be there. It can then go from being sluggishly slow to electric storms very quickly!
Thanks for sharing Nevey.