Louisiana Geography Chapter 2 Study Guide

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timezone of Louisiana
Central Time Zone
states that border Louisiana
Arkansas, Texas, and Mississippi
southern border of Louisiana
Gulf of Mexico
rivers that separate Louisiana and Mississippi
the Mississippi River and the Pearl River
the boundary between Louisiana and Texas
the Sabine River and Toledo Bend
largest natural lake in Louisiana
Lake Ponchartrain
largest manmade lake in Louisiana
Toledo Bend Reservoir
oxbow lakes (cut-offs)
develop when rivers find shorter, straighter routes through flat terrain
Ex. False River
raft lakes
are formed when debris acts like a dam, building up water behind it
Ex. Caddo Lake and Lake Bistineau
marsh lakes
form when chenieres slow a river’s progress
Ex. Calcasieu Lake
bayou
slow flowing, sluggish waterway
levee system
one way man tries to control rivers from flooding
swamp
a seasonally flooded forest
Louisiana climate
humid subtropical
hurricane and tornado
two types of windstorms that affect Louisiana
Great Flood of 1927
led to a protective system that keeps the Mississippi River within manmade banks until it reaches the Gulf of Mexico
absolute location
gives a precise position on the globe (latitude and longitude
weather
current conditions of the atmosphere (includes temperature, wind and precipitation)
climate
the average weather of area over a long period of time, such as 25-30 years
alluvial soil is found where
Mississippi floodplain region
relative location
The position of a place in relation to another place
latitude lines
Imaginary lines running horizontally around the globe but measure north and south. Also called parallels, latitude lines are equidistant from each other. Zero degrees (0°) latitude is the equator.
longitude lines
Lines that run north and south but measure distances east and west are called longitude lines
themes of geography
location, place, regions, movement, and human-environment interaction
barrier islands
Long, thin, low offshore islands of sediment that generally run parallel to the shore along some coasts and protect mainland from coastal erosion from waves
swamp
A seasonally flooded forest
marsh
wet, treeless prairie
natural causes of coastal erosion
subsidence and erosion
man-made causes of coastal erosion
canals, levees, dams
benefit of barrier islands
protect us from hurricane storm surge