/
Louisiana’s Geography Rivers and Regions Louisiana’s Geography Rivers and Regions

Louisiana’s Geography Rivers and Regions - PowerPoint Presentation

stefany-barnette
stefany-barnette . @stefany-barnette
Follow
362 views
Uploaded On 2018-10-21

Louisiana’s Geography Rivers and Regions - PPT Presentation

Louisianas Location Absolute Location refers to a specific spot Relative Location explains where a place is in relation to another place Louisianas Location Latitude also called parallels measures a locations ID: 691494

louisiana louisiana

Share:

Link:

Embed:

Download Presentation from below link

Download Presentation The PPT/PDF document "Louisiana’s Geography Rivers and Regio..." is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.


Presentation Transcript

Slide1

Louisiana’s Geography

Rivers and RegionsSlide2

Louisiana’s Location

Absolute Location refers to a specific spotSlide3

Relative Location explains where a place is in relation to another place

Louisiana’s LocationSlide4

Latitude (also called parallels) measures a location’s

distance north or south of the equator.

Louisiana’s LocationSlide5

Longitude measures how far east or west a

location is from the prime meridian.

Louisiana’s LocationSlide6

If a cartographer (mapmaker) drew a north-south line through the center of the United States, Louisiana would lie just east of that line.

Louisiana’s LocationSlide7

Natural Boundaries vs. Manmade Boundaries

- Natural boundaries are things such as rivers & bodies of water created by nature.

- Manmade boundaries are things such as longitude, latitude, manmade lakes or rivers that were created by humans.

Louisiana’s LocationSlide8

Louisiana’s LocationSlide9

1. Name one of Louisiana’s Natural Boundaries.

2. Name one of Louisiana’s Manmade Boundaries.

BellringerSlide10

Water is not only the dominant feature of Louisiana’s environment,

it has shaped the state’s physical landscape.

Louisiana has almost 5,000 miles of bayous, rivers, creeks, and canals.

Louisiana’s WaterwaysSlide11

Intracoastal Waterway:

The Gulf Intracoastal Waterway funs from the Atlantic Ocean to the Gulf of Mexico.

It extends more than 1,100 miles from Intracoastal Waterway provides a safe channel for ships, fishing boats, and recreational crafts.

Louisiana’s waterwaysSlide12

Rivers:

- The Mississippi River starts in northern Minnesota and stretches all the way down through Louisiana to the Mississippi River Delta. It covers 2,320 miles and it drains at least part of 31 states. Approximately 375 billion gallons of water funnels through Louisiana each day. The Mississippi River gives Louisiana its shape not only along its upper eastern boarder but along the coast line as well.

- The Red River is the second largest river in Louisiana. It begins as a creek in New Mexico and ends in Avoyelles Parish

Louisiana’s waterwaysSlide13

Rivers:

- The Atchafalaya River has been altered more than any other river in Louisiana. In the 1800s the river was cleared of its log to increase the flow of water so that it could be a shortcut for steamboats on the Mississippi River. Today, the Atchafalaya gets much of its water from the Red River and the Mississippi River.

- The Pearl River serves as one of Louisiana’s natural boundaries between St. Tammany Parish and Mississippi.

- The Sabine River forms a natural boundary between Louisiana and Texas.

Louisiana’s waterwaysSlide14

Lakes:

- Lake Toledo Bend is one of many manmade lakes in Louisiana. It was create in 1967 by Louisiana and Texas. It serves as the largest reservoir in Louisiana covering 186,000 acres. It provides electricity, a water supply, and great fishing.

- Lake Pontchartrain is the largest natural lake in Louisiana. It covers 625 square miles. The lake is only about 10-16 feet deep and serves as a tidal lagoon of the Gulf of Mexico. The water in the lake is

Brackish

, a mixture of seawater and freshwater.

Louisiana’s waterwaysSlide15

Lakes:

-

Cutoff Lakes are formed as rivers seek shorter, straighter courses through flat terrain. Many rivers of Louisiana have created cutoff lakes.

- Marsh Lakes form where high ridges slow the rivers’ progress to the Gulf of Mexico.

Louisiana’s waterwaysSlide16

Bayous:

- Louisiana is often called “The Bayou State”

- The word bayou comes from the Choctaw Indian language and means “creek”

- Some of the more well known bayous were once channels of the Mississippi River.

Louisiana’s waterwaysSlide17

Bellringer

1. What is the largest natural lake in Louisiana?

2. What is Toledo Bend?Slide18

- Natural Regions are defined and classified according to the relief, soil, vegetation, and climate.

- Geographers have divided the United States into 8 natural regions. Louisiana is classified as being part of the

Gulf Coastal Plain

, an area on the coastal edge of the continent with a generally low elevation.

Louisiana’s natural RegionsSlide19

- Elevation refers to the height of a place above sea level. Louisiana’s elevation ranges from 4 feet below sea level to 535 feet above sea level.

- Relief is the difference between the highest and the lowest elevation in a given area. Louisiana’s relief is 539 feet.

Louisiana’s natural RegionsSlide20

Stand Up~ Hand Up~ Partner Up

Purple Desk – Mississippi Floodplains Region

Green Desk – Terraces Region

Blue Desk – Marsh Region

Yellow Desk – Red River Valley

Region & Hills Region

Louisiana’s natural RegionsSlide21

Look

Fors

:

Where is the region located?

What are specific features or characteristics of this region?

Is this region divided into smaller subparts?

Louisiana’s natural RegionsSlide22

Bellringer

1. Which region includes Salt domes?

2. Which region includes Passes?

3. Which region includes Prairies?Slide23

Louisiana Climate

Weather vs. Climate

Weather

measures the current conditions of the atmosphere: temperature, precipitation, and wind

Climate

is the average weather of an area over a long period of time, such as 25-30 years.Slide24

3 elements that affect Louisiana’s Climate:

1. The Gulf of Mexico

2. Its distance from the equator

3. Its position on the North American continent

Louisiana ClimateSlide25

Louisiana has a humid subtropical climate.

The

summers are as hot as a tropical climate but we do have freezes in the winter.

Temperature

: North Louisiana has the highest temperatures in the state.

Precipitation

– any form of water (liquid or solid) that falls from the atmosphere and reaches the ground.

Wind

: Two types of windstorms affect Louisiana.

Tornados

Hurricanes

Louisiana ClimateSlide26
Slide27

Louisiana ClimateSlide28
Slide29

Bellringer

1. When a hurricane season produces more storms then the English alphabet, the National Weather Center uses the Greek Alphabet.

True

False

2. Which of the following is not a reason New Orleans flooded during Hurricane Katrina?

A. Storm Surge

B. Heavy Rain

C. Failed levees

D. Pump Station FailureSlide30

Climate & Agriculture

- Read independently pg. 63. “Climate and Agriculture”

- Discuss with your group and formulate a response to the following question:

“How does Louisiana’s climate help agriculture?”Slide31

Louisiana’s Natural regions

1. Create a foldable

2. Using your textbook and the notes you took on Louisiana’s Natural Regions, fill in your foldable.

3. Make sure to include all subparts of each region.

4. Make sure identify any unfamiliar vocabulary words.Slide32

Exit Ticket

1. A swamp is a seasonally flooded forest.

True

False

2. The difference between a marsh and swamp is trees grow in a swamp and not in a marsh.

True

False

3. Louisiana’s climate makes for a short growing season.

True

FalseSlide33

Bellringer

1. Which of the following affects Louisiana’s Climate?

A. The Gulf of Mexico

B. The Mississippi River

C. Lake

Pontchartrian

2. Marshes are typically located

A. Along the Gulf Coast

B. In North Louisiana

C. Along the Mississippi RiverSlide34

People & the Environment

For centuries humans have attempted to control the Mississippi River. When the French colonized Louisiana, levees were built to protect people and their crops.

In 1927, after the Great Flood, a protective system was built to keep the river within manmade banks. The U.S. Army Corps of Engineers became responsible for stopping the flooding by creating a system of locks, dams, reservoirs, canals, and levees.Slide35

Bonnet

Carre

Spillway was built in 1935 to protect the city of New Orleans. It’s a concrete structure running 8,000 feet long with 350 bays. Several times since 1935, the spillway has been opened to prevent New Orleans from flooding.

Protecting the people along the Mississippi River has been disastrous for Louisiana’s wetlands, swamps, marsh, and other areas that have a natural supply of water and are soaked with water at least part of the year.

People & the EnvironmentSlide36

People & the EnvironmentSlide37

Vanishing Coastline:

- Louisiana has 30% of the United States coastline but experiences 90% of the country’s land loss.

- The amount of land Louisiana has lost is equal in size to the state of Delaware.

- It is estimated that Louisiana has lost 24 square miles of coastal land and wetlands per year.

People & the EnvironmentSlide38

Causes:

The natural process for sustaining the marsh depends on rivers and water runoff to add freshwater and silt. The silt builds up the land in the marsh. Vegetation grows which traps more silt. This also helps keep salt water out of the marsh.

Subsidence – the process in which soil along the coast sinks slowly

Without regular deposits of silt results in subsidence.

Heavy wind also causes damage to the marsh. Hurricanes Katrina and Rita destroyed more than 100 square miles of wetlands in 2005.

People & the EnvironmentSlide39

Impact of Land Loss:

- Louisiana’s coastal marshes are the nurseries for more than 75 percent of the Gulf of Mexico’s fish. The changing marsh is leaving fish without a place to spawn.

- Barrier Islands – islands off the coast that protect the wetlands, estuaries, and bays from the direct impact of ocean waves and hurricanes. Every 4 miles of marshes reduces the impact of the storm surge by 1 foot.

People & the EnvironmentSlide40

Response:

- Breaux Act requires government agencies to work together to tackle this national problem.

- Scientist agree that the years spent trying to control the river has caused so much damage to the wetlands

- There are several proposed ideas on how to fix this problem

People & the Environment