1. Aim: What are Regional Wind Systems
Do Now: Compare and contrast High pressure systems to Low pressure systems.
Low Pressure High Pressure

2. Low Pressure High Pressure

4. I. Local Winds Caused either by:
Topographic effects (orographic lifting) or
Variations in surface composition
(Land or Water)
* Land has a lower specific heat then the water *
Granite = 0.79 Joules/gram x 0C
Water = 4.18 Joules/gram x 0C

5. A. Sea Breeze
- During the day, the land heats faster than the water, creating a low pressure area
- the water is cooler, so a high pressure area is created.
The wind blows from the high pressure over the water to the low pressure over the land, creating a sea breeze.

6. B. Land Breeze
- At night, the land cools faster than the water, creating a high pressure area
- the water is warmer since it heated all day, so a low pressure area is created
The wind blows from the high pressure over the land to the low pressure over the sea, creating a land breeze.

7. Why do people go to the beach during the day?