External Forces and Climate Zones External Forces Forces

  • Slides: 41
Download presentation
External Forces and Climate Zones

External Forces and Climate Zones

External Forces • Forces that occur above ground • Erosion, Sedimentation, Glaciation

External Forces • Forces that occur above ground • Erosion, Sedimentation, Glaciation

Erosion • The process by which water or wind removes earth from a region

Erosion • The process by which water or wind removes earth from a region • Can cause huge agricultural problems as farmers lose their land to erosion

Erosion • Along oceans and rivers, can result in loss of property and arable

Erosion • Along oceans and rivers, can result in loss of property and arable land

Sedimentation • The process in which large amounts of soil gets deposited (put) in

Sedimentation • The process in which large amounts of soil gets deposited (put) in one place by a body of water • Happens often at the mouth of large rivers • Creates alluvial plains (good for agriculture)

The last ice age, 10, 000 years ago

The last ice age, 10, 000 years ago

Glaciation • When glaciers modify the earth • Then, when the glaciers recede, the

Glaciation • When glaciers modify the earth • Then, when the glaciers recede, the changed land is visible • Often makes holes, that become lakes or valleys • Fjords in Scandinavia

What effects precipitation (rainfall)? • Physical barriers— Mountains can block rainfall • Nearness to

What effects precipitation (rainfall)? • Physical barriers— Mountains can block rainfall • Nearness to water —The closer to water, the higher the rainfall and the humidity (even lakes)

Review 1. What is one positive influence of sedimentation? 2. What is one negative

Review 1. What is one positive influence of sedimentation? 2. What is one negative effect of erosion? 3. How has glaciation changed the earth’s landscape?

Practice! • Everybody pair will get a white board and a marker. • For

Practice! • Everybody pair will get a white board and a marker. • For every image, you will write: – What earth process is represented? • erosion, sedimentation, pr glaciation. • DON’T DESTROY MY MARKERS! • DON’T DRAW ON MY BOARDS!

Climate and Vegetation

Climate and Vegetation

CLIMATE REGIONS

CLIMATE REGIONS

Climate vs. Weather • Climate: The long term environmental conditions in an area. •

Climate vs. Weather • Climate: The long term environmental conditions in an area. • Weather: The current conditions in an area

Climograph

Climograph

Ice Cap Very cold all year with permanent ice and snow

Ice Cap Very cold all year with permanent ice and snow

Tundra Very cold winters, cold summers, and little rain or snow

Tundra Very cold winters, cold summers, and little rain or snow

A little warmer than arctic, (lower latitude) a little more rain in the summer

A little warmer than arctic, (lower latitude) a little more rain in the summer Subarctic

Marine West Coast Warm summers, cool winters, and lots of rainfall year

Marine West Coast Warm summers, cool winters, and lots of rainfall year

Humid Subtropical • Hot, rainy summers and mild winters with some rain • Most

Humid Subtropical • Hot, rainy summers and mild winters with some rain • Most common climate in the U. S.

Mixed Forest • A mix of large trees (coniferous and deciduous) • Found in

Mixed Forest • A mix of large trees (coniferous and deciduous) • Found in middle latitudes, generally receive above average rainfall

Temperate Grassland • Short and tall grasses adapted to warm summers and cold winters

Temperate Grassland • Short and tall grasses adapted to warm summers and cold winters • Generally found in semi-arid climates

Mediterranean • Warm all year with dry summers and short, rainy winters • Considered

Mediterranean • Warm all year with dry summers and short, rainy winters • Considered a mild or temperate climate • Common on the Mediterranean Sea • Because of its unique climate, specialty crops are grown: grapes (wine), figs, dates

Semiarid Hot, dry summers and cool, dry winters

Semiarid Hot, dry summers and cool, dry winters

Arid Hot and dry all year with very little rain

Arid Hot and dry all year with very little rain

Tropical Wet • Hot and rainy all year • Near the equator

Tropical Wet • Hot and rainy all year • Near the equator

Highlands • Mountainous areas • Temperature and precipitation vary with latitude and elevation

Highlands • Mountainous areas • Temperature and precipitation vary with latitude and elevation

Tropical Wet and Dry • Hot all year with rainy and dry seasons •

Tropical Wet and Dry • Hot all year with rainy and dry seasons • Monsoons—season winds that bring huge amounts of precipitation

Warm up! • Take out your note packet from last class on climate regions.

Warm up! • Take out your note packet from last class on climate regions. With the person sitting next to you, try to come up with the BEST EXAMPLE POSSIBLE of human-environment interaction for each climate zone. • You have 10 minutes. • While you are doing this, I will pass back your test scores.

Some observations from your FRQ’s • Bad— “One example of human environment interaction is

Some observations from your FRQ’s • Bad— “One example of human environment interaction is Alaska. ” • Good--Almost everyone labeled their sections • Bad—Trying to get two points in one section • Good—Nobody left blanks • Bad— “Human environment interaction is when humans interact with their environment, ” or “One example of human environment interaction is pollution. ” Too vague, BE SPECIFIC!!! • Suggestion—Make some quick notes on your paper, then pick your best answer

VEGETATION REGIONS • Similar to climate regions, but address the plant life that grows

VEGETATION REGIONS • Similar to climate regions, but address the plant life that grows in different climate regions

Practice! • I will put examples of different climate regions up, and you will

Practice! • I will put examples of different climate regions up, and you will tell me which it is.