Earth'sSurfaceTemp.AffectsClimate(PrepForQuiz#4) Flashcards
When mountains are near oceans, air is humid and the clouds cannot hold the precipitation causing lots of rain and snow
Mountains
Air has to rise over mountains and when it does, it cool forming clouds
Mountains
On the other side of the mountain, the air heats back up as it falls forming desert-like conditions
Mountains
Broad flat surfaces do not stop wind flow very well. Winds can come in from many different directions.
Flat plains
The mixing of winds can cause thunderstorms and tornadoes
Flat plains
Ice ages
•climate was colder and glaciers covered the earth’s surfaces
Climate change
El Niño
•happens every 3-8 years
•warming of the Pacific Ocean
•causes abnormal weather patterns
Climate change
Global warming
• human activities, CO2 emissions and greenhouse gasses cause a rise in global temperature
Climate change
For thunderstorms to form, three conditions must exist
• a source of moisture
• lifting of the air mass
• unstable atmosphere
Thunderstorms
Lightning is a big spark- electrical charges are built up by water droplets and ice crystals
Lightning
When the charges from one cloud are different from another or from the earth, the Sparks jump to equalize each other out.
Lightning
Thunder is the noise that is made when electrical charges move through the air as lightning
Thunder
Lightning super-heats the air, which then expands faster than the speed of sound
Thunder
We hear the shockwave created by this rapid expansion of Thunder
Thunder
Supercell- intense rotating up drafts lasting several hours. Anvil shaped comilonimbus
Severe weather
