Unit 6 Images

•Download as PPTX, PDF•

0 likes•541 views

The document summarizes survey data from 992 United States adults in March 2012 about beliefs and concerns regarding climate change. It shows: - 10% were most concerned and believed in climate change the most, while 13% were least concerned and believed in it the least. - Over 50% of people believed climate change will harm plants/animals, future generations, and people in developing countries. Fewer believed it will harm Americans or their own communities/families. - Between November 2011 and March 2012, the percentage of people who believed climate change is happening increased from 50% to 60%, while those who believed it is caused by human activities increased from 33% to 38%.

United States adults in the 6 Americas, March 2012
(992 people surveyed by Yale/George Mason University)
How do our class data compare to the national data?
Alarmed
Concerned
Cautious
Disengaged
Doubtful
Dismissive
Highest Belief in Global Warming
Most Concerned
Most Motivated
Lowest Belief in Global Warming
Least Concerned
Least Motivated 10%
15%
6%
29%
26%
13%

Americans believe that climate change will
be harmful to……
March 2012 data from Yale Project on Climate Change Communication
0 10 20 30 40 50 60 70
Plants and animals
Future generations of people
People in developing countries
People in the US
People in their community
People in their family
Themselves
Percent of people who believe that climate change
will be harmful to...

Do Americans believe that climate
change is happening?
Data from Yale Project on Climate Change Communication
0
10
20
30
40
50
60
70
November 2011 March 2012
PercentofPeople
Climate change is
happening
Climate change is
not happening

Do Americans believe that climate
change is caused mostly by humans?
March 2012 data from Yale Project on Climate Change Communication
0
10
20
30
40
50
60
November 2011 March 2012
PercentofPeople
Climate change is caused
mostly by human activities
Climate change is not
caused mostly by human
activities

Mitigation Adaptation
Working to reduce Working to adjust
the severity of a to an unavoidable
problem/issue. problem/issue.

Example: the aging movie star
From ages 20-35, the actress was offered many
leading movie roles.
She continued auditioning for these roles, but
starting around age 40, she noticed that she was
being offered fewer and fewer leading roles.
She is now 50 years old and has not been offered a
leading role in over 5 years. Her agent suspects that
she is not being offered these parts because she
looks older than the other younger actresses who
are auditioning.

• What could the actress do to attempt to
mitigate this situation?
• What could the actress do to attempt to adapt
to this situation?
• What are the pros and cons of mitigation?
• What are the pros and cons of adaptation?

Climate change mitigation: working to
decrease greenhouse gas emissions in an
attempt to reduce the severity of future
climate change
Climate change adaptation: working to
adjust to the unavoidable aspects of climate
change that we are already experiencing and
may experience in the future

Scientists believe that the
number of 100 degree
days per year will increase
during the next century,
depending on greenhouse
gas emissions.

Lowering of
floodplains
Lowering (excavating) an area of the floodplain increases the room for the river at
high water levels.
Deepening
summer bed
The river bed is deepened by excavating the surface layer of the river bed. The
deepened river bed provides more room for the river.
Water storage The Volkerak-Zoommeer lake provides temporary water storage when exceptional
conditions result in the combination of a closed storm surge barrier and high river
discharges to the sea.
Dike
relocation
Relocating a dike land inwards increases the width of the floodplains and provides
more room for the river.
Lowering
groynes
Groynes stabilize the location of the river and ensure that the river remains at the
correct depth. However, at high water levels groynes can form an obstruction to
the flow of water in the river. Lowering groynes increases the flow rate of the
water in the river.
High water
channel
A diked area that branches off from the main river to discharge some of the water
via a separate route.
Depoldering The dike on the river side of a polder is relocated land inwards. The polder is
depoldered and water can flood the area at high water levels.
Removing
obstacles
Removing or modifying obstacles in the river bed where possible, or modifying
them, increases the flow rate of the water in the river.
Strengthening
dikes
Dikes are strengthened in areas where creating more room for the river is not an
option.
Room for the River

The document discusses river flooding, including the causes and hydrological processes involved. It provides information on flood hydrographs and lag times, explaining that shorter lag times are caused by impermeable surfaces and steep slopes, allowing water to enter rivers more quickly after precipitation. Longer lag times are caused by more permeable surfaces and vegetation, slowing water entry into rivers. The document also discusses investigating a flood event and its impacts, and provides a table to sort hydrological cycle processes into inputs, outputs, and stores.

Tides

southwestscience

The document discusses tides and how they are caused by the gravitational forces of the Moon and Sun. It explains that the Saint John River in Canada changes direction twice a day due to the tides in the Bay of Fundy. High tides are caused when the Earth, Moon, and Sun are aligned, while low tides occur on the opposite side of Earth. Different phases of the Moon like new moons and full moons can cause spring tides, while first quarter moons result in neap tides.

Effects of ocean currents on environment

ANAMIKA RAJ

Flash Floods

jen_lederer

Flash floods are sudden floods caused by heavy rain or dam failures that occur quickly in a small area. They can move large objects and destroy buildings. Common causes are heavy rainfall over 1 inch per hour, saturated ground, and rain in uphill areas. Effects include loss of life, environmental damage from pollution, and millions in property damage. They frequently occur in areas with steep terrain and bare ground and reports have increased in the US due to better reporting. A 2009 flash flood in Kentuckiana was caused by over 14 inches of rain in under an hour from a thunderstorm. It caused widespread flooding, closed the University of Louisville for $15 million in damages, and disrupted power for 20,000 customers.

Floods, Flooding And Management

James Foster

1) Rivers flood naturally when a river's discharge exceeds its channel capacity, but human activities can increase flood risk. Precipitation levels, relief, vegetation, geology and soil types are physical factors influencing floods. 2) Calculating flood frequency involves ranking flood sizes each year and using an equation involving the number of years observed and the flood's rank to determine the recurrence interval. However, historical data and variability mean floods aren't guaranteed to occur on schedule. 3) Human causes of increased flooding include urbanization, deforestation, river management practices like dams, and climate change effects like heavier storms and melting ice caps. A case study of the 2004 Boscastle floods in England is presented.

Landslide

Sharan R

Landslides occur when heavy rain causes soil and rocks to collapse and flow down slopes. Water pressure in the soil increases during heavy rains, which can cause the soil and loose rocks to move downwards due to gravity. Streams form from the flowing water and soil, and can carve out landforms over time through erosion and deposition. Common causes of landslides include deforestation, unscientific construction, mining, and excessive rain. The recent landslides in Kerala were caused by heavy monsoon rains, deforestation, unscientific construction, mining, and high population density at foothill areas.

Water cycle review

MrMatthis

The water cycle involves the continuous movement of water on, above, and below the Earth's surface. It includes four main parts: evaporation where the sun turns water into vapor, condensation where water vapor in the air condenses into liquid water forming clouds, precipitation where clouds become too full and water falls as rain, snow, or hail, and collection where precipitation is collected in oceans, lakes, rivers, soil, or underground.

Flooding 2 Causes

tudorgeog

This document discusses flooding and river discharge. It provides background on hydrograph data and plotting. It then discusses several physical factors that can cause rivers to flood such as heavy rainfall, snow melt, soil conditions, relief, and rock type. It also discusses human factors like urbanization, deforestation, and building on floodplains that can exacerbate flooding. The document aims to explain these concepts and factors to know terms related to flooding and river discharge.

Flash floods occur suddenly due to heavy rainfall over a short period of time. They are common in Malaysia, especially in urban areas where drainage systems are clogged. Common causes of flash floods include slow-moving thunderstorms, dam or levee failures, saturated ground, and urbanization which increases impervious surfaces. Flash floods can damage property and infrastructure, erode land, increase food prices, and release pollutants. Prevention methods include widening streams, protecting wetlands, placing sandbags and rocks, and building retention ponds and levees to contain excess water. Projects in Kuala Lumpur like SMART help divert flood waters and reduce flooding.

Flooding

whiskeyhj

The document discusses river drainage basins and flooding. It defines key terms related to the water cycle within a drainage basin such as precipitation, infiltration, interception, surface runoff, throughflow, evaporation, evapotranspiration, percolation, and the water table. It also explains the components of a flood hydrograph including the rising limb, falling limb, peak discharge, peak rainfall, storm flow, and normal base flow. Factors that influence the shape of a hydrograph are described such as land use, geology, soil, vegetation, and topography.

L6 Causes Of Flooding

tudorgeog

Rivers flood due to both physical and human causes. Physical causes include prolonged or heavy rainfall, snowmelt, soil conditions, relief of the land, and previous weather conditions. Human causes include building on floodplains, deforestation, and urbanization which decrease infiltration and increase surface runoff. Flooding appears to be increasing in frequency in the UK over the past 20 years due to these factors.

Fact inf hydro graophs ap

SHS Geog

This document discusses factors that affect the shape of a hydrograph during a rainstorm, specifically mentioning basin lag time. It notes that a longer lag time and shallower rising limb can occur if snow is on the ground acting as a storage area, or if the ground is permeable. A steeper rising limb and shorter lag time may result from intense rainfall, saturated ground from previous rain, steep slopes promoting rapid overland flow, or impermeable surfaces from urbanization.

Water, Hydrogen Bonds, and the Hydrologic Cycle

Brad Dougherty

Water is made up of hydrogen and oxygen atoms that are covalently bonded together into polar molecules. The polarity of water molecules allows them to form hydrogen bonds with nearby water molecules, giving water its unique properties. Hydrogen bonding is responsible for water's high boiling point, its ability to absorb large amounts of heat, and why ice floats on liquid water. The hydrologic cycle describes the continuous movement of water on, above, and below the surface of Earth, including processes such as evaporation, transpiration, condensation, precipitation, and runoff.

Exogenous disasters soil erosion

MALLIKARJUNA REDDY KASIREDDY

Floods causes & impacts

Ms Geoflake

Flooding can be caused by both physical and human factors. Heavy rainfall, snowmelt, steep drainage basins, and coastal influences can increase flooding risk naturally. Human activities like urbanization, deforestation, and improper infrastructure development exacerbate flooding through reduced infiltration and faster runoff. Flooding can have severe social and economic impacts through property damage, transportation disruptions, and health issues, but may also provide benefits like fertile soils under some circumstances. Risk analysis aims to estimate the probability and potential impacts of flood events.

The hydrological cycle

angelabentley

Exogenous disasters floods

MALLIKARJUNA REDDY KASIREDDY

Water Supply Issues in Tennessee TACIR June 2008

Ken Belliveau

This document summarizes water supply issues in Tennessee, including the 2007 drought, growing water needs due to population growth, and challenges in water management. It describes how water allocation is divided among state and federal agencies, including the Tennessee Department of Environment and Conservation, Tennessee Valley Authority, and U.S. Army Corps of Engineers, as well as local utilities. The document examines options to address water needs, such as linking more communities to the Tennessee and Cumberland Rivers.

Climate Change - Our Challenge for the 21st Century by Jennifer Adkins, Direc...

Kim Beidler

#36068 Topic SCI 207 Our Dependence upon the EnvironmentNumber.docx

AASTHA76

#36068 Topic: SCI 207 Our Dependence upon the Environment Number of Pages: 1 (Double Spaced) Number of sources: 2 Writing Style: APA Type of document: Essay Academic Level:Undergraduate Category: Environmental Issues Language Style: English (U.S.) Order Instructions: ATTACHED Week 3 - Assignment 1 Ground and Surface Water Interactions Laboratory [WLO: 2] [CLOs: 1, 3, 4, 5] This lab enables you to design models of different scenarios that affect the earth’s surface water and groundwater. The Process: Take the required photos and complete all parts of the assignment (calculations, data tables, etc.). On the “Lab Worksheet,” answer all of the questions in the “Lab Questions” section. Finally, transfer all of your answers and visual elements from the “Lab Worksheet” into the “Lab Report.” You will submit both the “Lab Report” and the “Lab Worksheet” to Waypoint. The Assignment: Making sure to complete all of the following items before submission: Before you begin this assignment, read the Groundwater and Surface Water Interactions Investigation ManualPreview the document and review The Scientific Method (Links to an external site.)Links to an external site.presentation video. Follow the instructions in the manual to complete Activities 1, 2, and 3 using materials in your kit, augmented by additional materials that you will supply. Photograph each activity following these instructions: When taking lab photos, you need to include in each image a strip of paper with your name and the date clearly written on it. Complete all parts of the Week 3 Lab WorksheetPreview the document and answer all of the questions in the “Lab Questions” section. Transfer your responses to the lab questions and data tables and your photos from the “Lab Worksheet” into the “Lab Report” by downloading the Lab Report TemplatePreview the document. Submit your completed “Lab Report” and your “Lab Worksheet” through Waypoint. Groundwater and Surface Water Interactions Investigation Manual ENVIRONMENTAL SCIENCE Made ADA compliant by NetCentric Technologies using the CommonLook® software Key Personal protective equipment (PPE) goggles gloves apron follow link to video photograph results and submit stopwatch required warning corrosion flammable toxic environment health hazard GROUNDWATER AND SURFACE WATER INTERACTIONS Overview Clean drinking water is vital for all human life. In this lab, students will learn how freshwater sources interact through the natural processes of the hydrosphere (all the water on the planet) and what happens to drinking water supplies when our planet becomes altered by human activities. Students will design models of different scenarios that affect the earth’s surface water and groundwater. The models will demonstrate overconsumption and dro Background The hydrosphere encompasses all the water on the planet. It includes freshwater and saltwater; liquid, solid, and vapor; and water .

Water on the land

lesliehome

This document discusses water on the land and how rivers change from their source to their mouth. It explains that rivers have a steep gradient and narrow channels near their source, carrying large angular material. Downstream, the gradient gentles, channels widen and deepen, and material transported is smaller and more rounded. Floodplains also become wider and flatter towards the river mouth as the channel capacity increases.

Lesson 11 changes in hydrological cycle

David Rogers

The Flow of Fresh Water

mlong24

This document provides an overview of key concepts about rivers and water systems from an Earth Science textbook. It begins by describing how moving water causes erosion and shapes the landscape. It explains the water cycle and defines important river features like tributaries, watersheds, and gradients. Later sections discuss how rivers deposit sediment to form features like deltas and floodplains. It also explains groundwater systems, describing aquifers, springs, wells, and how erosion can form caves and sinkholes. The document concludes by discussing water pollution, water treatment, and conservation strategies.

Watersheds ppt

Shanna Crawford

This document discusses human impact on water resources. It begins by defining fresh and salt water, and surface and groundwater, providing examples of each. It then describes the water cycle and how water is a natural resource. The document outlines different types of water pollution including point source, nonpoint source, surface water, oil, chemical, groundwater, and thermal pollution. It discusses overuse of water and issues like land subsidence caused by groundwater withdrawal. In summary, the document covers different types of water resources and pollution, how water cycles through the environment, and human impacts on the water cycle.

Fluvial morphology

Kella Randolph

Assignment on: Runoff and flooding (Drainage Pattern, Stream Flow Velocity, R...

Mozakkir Azad

Water is one of our most important natural resources. Without it, there would be no life on earth. The supply of water available for our use is limited by nature. Although there is plenty of water on earth, it is not always in the right place, at the right time and of the right quality. Adding to the problem is the increasing evidence that chemical wastes improperly discarded yesterday are showing up in our water supplies today. Hydrology has evolved as a science in response to the need to understand the complex water systems of the Earth and help solve water problems. Hydrologists play a vital role in finding solutions to water problems, and interesting and challenging careers are available to those who choose to study hydrology

ok final Natural Hazards 2 Landslides and Floods.pptx

AnuragDavesar

Climate change is predicted to cause major increases in global famine and flooding. By 2050, climate change may result in 30 million more people going hungry due to flooding reducing crop yields. Bangladesh already experiences severe flooding due to climate change, with two-thirds of the country underwater in 1998 flooding. Similar or worse flooding is predicted for Bangladesh and many coastal cities by 2100 if climate change continues unabated, including New York City, San Francisco, New Orleans, Miami, and Shanghai.

Unsuccessfulwell Perchedwater table successful wellSpring.docx

dickonsondorris

Unsuccessful well Perched water table successful well Spring \ Main water table to 50 percent of the sediment's total volume. Pore space depends on the size and shape of the grains; how they are packed together; the degree of sorting; and in sedimentary rocks, the amount of cementing material. Most igneous and metamorphic rocks, as well as some sedimentary rocks, are composed of tightly interlocking crystals so the voids between grains may be negligible. In these rocks, fractures must provide the voids. 96 chapter 3 Landscapes Fashioned by Water )6 chapter 3 Landscapes Fashioned by Water Zone of saturation Unsaturated zo ne figure 3.30 This diagram illustrates the relative positions of many features associated with subsurface water. Several factors contribute to the irregular surface of the water table. One important influence is the fact that groundwater moves very slowly. Because of this, water tends to "pile up" beneath high areas between stream valleys. If rainfall were to cease completely, these water "hills" would slowly subside and gradually approach the level of the adjacent valleys. However, new supplies of rainwater are usually added often enough to prevent this. Nevertheless, in times of extended drought, the water table may drop enough to dry up shallow wells. Other causes for the uneven water table are variations in rainfall and permeability of Earth materials from place to place. Factors Influencing the Storage and Movement of Groundwater The nature of subsurface materials strongly influences the rate of groundwater movement and the amount of groundwater that can be stored. Two factors are especially important— porosity and permeability. Porosity Water soaks into the ground because bedrock, sediment, and soil contain countless voids or openings. These openings are similar to those of a sponge and are often called pore spaces. The quantity of groundwater that can be stored depends on the porosity of the material, which is the percentage of the total volume of rock or sediment that consists of pore spaces. Voids most often are spaces between sedimentary particles, but also common are joints, faults, cavities formed by the dissolving of soluble rock such as limestone, and vesicles (voids left by gases escaping from lava). Variations in porosity can be great. Sediment is commonly quite porous, and open spaces may occupy 10 percent Permeability Porosity alone cannot measure a material's capacity to yield groundwater. Rock or sediment may be very porous and still prohibit water from moving through it. The permeability of a material indicates its ability to transmit a fluid. Groundwater moves by twisting and turning through interconnected small openings. The smaller the pore spaces, the slower the groundwater moves. If the spaces between particles are too small, water cannot move at all. For example, clay's ability to store water can be great, owing to its high porosity, but its pore spaces are so small that ...

What's hot

DSD-INT 2019 Response of the Upper Rhine-Meuse Delta to Climate Change and An...

Deltares

Water resources

Fabeha Bakht

Cause of flash flooding

Sharifah Ain

Flooding

whiskeyhj

L6 Causes Of Flooding

tudorgeog

Fact inf hydro graophs ap

SHS Geog

Water, Hydrogen Bonds, and the Hydrologic Cycle

Brad Dougherty

Exogenous disasters soil erosion

MALLIKARJUNA REDDY KASIREDDY

Floods causes & impacts

Ms Geoflake

The hydrological cycle

angelabentley

Exogenous disasters floods

MALLIKARJUNA REDDY KASIREDDY

Water Supply Issues in Tennessee TACIR June 2008

Ken Belliveau

What's hot (12)

DSD-INT 2019 Response of the Upper Rhine-Meuse Delta to Climate Change and An...

Water resources

Cause of flash flooding

Flooding

L6 Causes Of Flooding

Fact inf hydro graophs ap

Water, Hydrogen Bonds, and the Hydrologic Cycle

Exogenous disasters soil erosion

Floods causes & impacts

The hydrological cycle

Exogenous disasters floods

Water Supply Issues in Tennessee TACIR June 2008

Similar to Unit 6 Images

Climate Change - Our Challenge for the 21st Century by Jennifer Adkins, Direc...

Kim Beidler

#36068 Topic SCI 207 Our Dependence upon the EnvironmentNumber.docx

AASTHA76

Water on the land

lesliehome

Lesson 11 changes in hydrological cycle

David Rogers

The Flow of Fresh Water

mlong24

Watersheds ppt

Shanna Crawford

Fluvial morphology

Kella Randolph

Assignment on: Runoff and flooding (Drainage Pattern, Stream Flow Velocity, R...

Mozakkir Azad

ok final Natural Hazards 2 Landslides and Floods.pptx

AnuragDavesar

Unsuccessfulwell Perchedwater table successful wellSpring.docx

dickonsondorris

36002 Topic SCI 207 Our Dependence upon the EnvironmentNumber.docx

rhetttrevannion

36002 Topic: SCI 207 Our Dependence upon the Environment Number of Pages: 2 (Double Spaced) Number of sources: 3 Writing Style: APA Type of document: Essay Academic Level:Undergraduate Category: Environmental Issues Language Style: English (U.S.) Order Instructions: Attached Week 1 - Assignment 1 Stream Morphology Laboratory [WLO: 1] [CLOs: 1, 3, 5] This lab enables you to construct a physical scale model of a stream system to help you understand how streams and rivers shape the landscape, and how human actions can affect river ecosystems. This lab is done with materials that you will need to supply; the list of items you will need to obtain is in the Stream Morphology Investigation ManualPreview the document. The Process: Take the required photos and complete all parts of the assignment (calculations, data tables, etc.). On the “Lab Worksheet,” answer all of the questions in the “Lab Questions” section. Finally, transfer all of your answers and visual elements from the “Lab Worksheet” into the “Lab Report.” You will submit both the “Lab Report” and the “Lab Worksheet” to Waypoint. The Assignment: Make sure to complete all of the following items before submission: Before you begin the assignment, read the Stream Morphology Investigation ManualPreview the document and review The Scientific Method presentation video. Complete Activity 1 and Activity 2 using the materials that you supply. Photograph each activity following these instructions: When taking lab photos, you need to include in each image a strip of paper with your name and the date clearly written on it. Complete all parts of the Week 1 Lab WorksheetPreview the document and answer all of the questions in the “Lab Questions” section. Transfer your responses to the lab questions and the data tables and your photos from the “Lab Worksheet” into the Lab Report TemplatePreview the document. Submit your completed “Lab Report” and “Lab Worksheet” through Waypoint. ENVIRONMENTAL SCIENCE Stream Morphology Investigation Manual STREAM MORPHOLOGY Table of Contents 2 Overview 2 Outcomes 2 Time Requirements 3 Background 9 Materials 10 Safety 10 Preparation 10 Activity 1 12 Activity 2 13 Submission 13 Disposal and Cleanup 14 Lab Worksheet 18 Lab Questions Overview Students will construct a physical scale model of a stream system to help understand how streams and rivers shape the solid earth (i.e., the landscape). Students will perform several experiments to determine streamflow properties under different conditions. They will apply the scientific method, testing their own scenarios regarding human impacts on river systems. Outcomes • Design a stream table model to analyze the different characteristics of streamflow. • Explain the effects of watersheds on the surrounding environment in terms of the biology, water quality, and economic importance of streams. • Identify different stream features based on their geological formation due to erosion an.

Planning for the Future by Carol Collier, Executive Director, Delaware River ...

Kim Beidler

This document discusses planning for the future of the Delaware River Basin. It summarizes key facts about the basin, including its size, population that relies on its waters, and status as an outstanding regional resource with exceptional water quality. It identifies several issues facing the basin, such as water supply and quality challenges from climate change impacts like sea level rise and drought, as well as energy and natural gas development needs. It stresses the need for holistic, basin-wide solutions and collaboration across states to sustainably manage the shared water resources into the future with minimal funds.

Mill Springs Academy

The document discusses various topics related to the water cycle and water on Earth. It explains that fresh water makes up only 3% of the total water on Earth, yet humans use 1% of available fresh water. It also describes the water cycle process whereby water evaporates from lakes and oceans into the air, forms clouds, and falls back to Earth as rain or snow. Additionally, it discusses topics like ground water, glaciers, oceans, currents and tides, waves, and how human activities like pollution and deforestation impact water.

Restoration Techniques on the Rio Mora National Wildlife Refuge and Surroundi...

RewildingInstitute

The Rio Mora National Wildlife Refuge is located on the high plains near the foothills of the Southern Rockies. The Refuge is located between 6,700 feet and 7,000 feet. It is the center of a U.S. Fish and Wildlife Service Conservation area covering 952,000 acres of the Mora River watershed. The Mora River starts on Osha Mountain in the Sangre de Cristo range. It begins at 10,000 feet of altitude, then flows eastward to enter the Canadian River at approximately 4,500 feet of altitude. Various locations along the Mora River will affect phenology sequences, but the heart of this book is the Rio Mora National Wildlife Refuge which is midway between the start and finish of the Mora River.

groundwater.pptx

ShahadatHossain258301

Groundwater is water stored underground in porous rock or soil. It is an important source of water in the US. The key factors that determine whether an underground source can be used as an aquifer are its quantity, ease of withdrawal, and water quality. Groundwater flows from areas of high pressure to low pressure due to differences in elevation and the slope of the water table. Contamination can enter groundwater from both point sources like leaking tanks, and nonpoint sources like agricultural and urban runoff. Once contaminated, groundwater is very difficult to clean up.

Unit e fresh & saltwater systems

RileyAntler

This document provides information about the distribution of fresh and salt water on Earth. It discusses how 97% of the Earth's surface water is saltwater, while 3% is freshwater. Most of this freshwater (77%) is locked up in glaciers. It also notes that only 0.003% of total water on Earth is potable/drinkable by humans. The document includes visual representations of these distributions and discusses Canada's large freshwater resources.

GCSE Geography OCR 2016 Revision

Lydia Stephenson

This document covers several key topics in geography related to populations and rivers/coasts: 1) It discusses the hydrological cycle and how water is stored and moves through different processes like percolation and infiltration. 2) It examines different landforms created by rivers like meanders and ox-bow lakes. It also looks at reasons for flooding and a case study of Boscastle. 3) Population topics include the demographic transition model, overpopulation issues, aging populations, and case studies on policies like China's one child policy and urbanization trends.

Rivers, floods and management

jamierjhill

The document discusses drainage basins, the storm hydrograph, river erosion processes and landforms, flooding causes and impacts, and flood management strategies. It describes the hydrological cycle within a drainage basin and factors that influence the shape of a storm hydrograph. It outlines river erosion mechanisms and key landforms in the upper, middle and lower courses such as potholes, waterfalls, meanders, and deltas. Causes of flooding include excessive rainfall and development that increases runoff. Impacts are economic, social and environmental. Flood management includes hard and soft engineering approaches.

Best Management Practicies

Devon Rhodes

Best Management Practices (BMPs) aim to mitigate stormwater runoff and non-point source pollution through sustainable land development practices. Traditional development has relied on impervious surfaces and drainage systems that exacerbate these issues. BMPs examine all factors contributing to pollution and seek to eliminate causes or mitigate their effects through practices like low impact development, native landscaping, rain gardens, and green roofs that mimic natural water filtration processes. Proper application of BMPs can benefit both the environment and community economic development.

Unit 2 the importanceofwaterandriverspp(revised2006)

mpiskel

This document discusses water and rivers, including key concepts like the water cycle, characteristics of rivers, and how humans interact with and impact rivers. It explains that water cycles through evaporation, transpiration, precipitation, and either infiltration into the ground or runoff into rivers. Rivers erode, transport, and deposit sediment over time. Humans can help rivers through conservation but also harm them with pollution and activities like channelization that disrupt natural processes.

Similar to Unit 6 Images (20)

Climate Change - Our Challenge for the 21st Century by Jennifer Adkins, Direc...

#36068 Topic SCI 207 Our Dependence upon the EnvironmentNumber.docx

Water on the land

Lesson 11 changes in hydrological cycle

The Flow of Fresh Water

Watersheds ppt

Fluvial morphology

Assignment on: Runoff and flooding (Drainage Pattern, Stream Flow Velocity, R...

ok final Natural Hazards 2 Landslides and Floods.pptx

Unsuccessfulwell Perchedwater table successful wellSpring.docx

36002 Topic SCI 207 Our Dependence upon the EnvironmentNumber.docx

Planning for the Future by Carol Collier, Executive Director, Delaware River ...

Restoration Techniques on the Rio Mora National Wildlife Refuge and Surroundi...

groundwater.pptx

Unit e fresh & saltwater systems

GCSE Geography OCR 2016 Revision

Rivers, floods and management

Best Management Practicies

Unit 2 the importanceofwaterandriverspp(revised2006)

More from SERC at Carleton College

StatVignette03_Sig.Figs_v04_07_15_2020.pptx

Unit 6 Images

Recommended

Recommended

More Related Content

What's hot

What's hot (12)

Similar to Unit 6 Images

Similar to Unit 6 Images (20)

More from SERC at Carleton College

More from SERC at Carleton College (20)

Recently uploaded

Recently uploaded (20)

Unit 6 Images

Editor's Notes