Agenda Aug 3 What am I learning today? How does climate influence human activity? What am I doing today? Climate and weather notes How will I show that I learned it? Complete a climate poster

Find the eight weather or climate words… b a r g d f k j h c e t p u w i n v y Warm up Jan 14 Find the eight weather or climate words…

Find the eight weather or climate words… b a r g d f k j h c e t p u w i n v y Warm up Jan 14 Find the eight weather or climate words…

Seasons and Weather Weather and climate

Seasons Happen because of the changing position of the earth in relation to the sun Earth tilted at 23.5° angle Tilt and revolution causes different parts of earth to receive more sun at different times of year seasons

Seasons - Solstices The day on which the sun shines directly over either the Tropic of Cancer or the Tropic of Capricorn Is the longest day of year if summer solstice or shortest day of year if winter solstice

Seasons - Equinoxes The biannual times when days and nights all over world are equal in length because sun is directly over the equator Marks the beginning of spring and autumn

Climate Weather The day to day conditions. It is raining outside… The weather conditions over time. Cold Winters.

Four major factors affect climate Wind and ocean currents Latitude Elevation Topography

Basic facts about wind and ocean currents Warm air and warm water rises -> AWAY from equator Cold air and cold water sinks -> TO the equator

Winds – Global Air Circulation Equator receives the most solar energy Hot air rises and moves to poles taking heat and moisture with it

Global Wind Patterns Coriolis effect: bending of winds by earth’s rotation Trade winds: - prevailing winds in low latitudes - blow from east to west • Westerlies: - mid-latitude winds (30-60° N and S latitudes) • Easterlies: - high latitude (polar) winds - 60-90° N and S latitudes

Ocean Currents Ocean currents: rivers flowing in ocean Flow clockwise in Northern hemisphere Flow counter-clockwise in Southern hemisphere

How do ocean currents affect climate Warms or cools winds blowing over land - Gulf Stream keeps temperatures of Western Europe moderate Affects the amount of precipitation in coastal areas - Cold currents prevent moisture usually causing deserts

Latitudes and Climate Three general zones of climate based on latitudes - low latitudes/tropical - mid- latitudes/ temperate - high latitudes/polar

Elevation Temperature decreases 3.5 degrees per 1000 feet of elevation Example: Mt. Kilimanjaro in Africa is capped with snow year round

Elevation – the Rain shadow Leeward Windward

Climate Activity Use your text and an atlas to research the assigned climate zone to become an expert. Create a poster using the information. You will present your poster to the class

Closing Summary 3 facts you learned about seasons and climate 2 illustrations of a season or climate fact 1 question you still have