Section 3

Cards (12)

  • Eustatic change
    A change in global sea level, usually due to a change in the volume of water in the oceans
  • Isostatic change

    A change in local land level
  • Eustatic fall in sea level
    During glacial periods, when ice sheets form on land in high latitudes, water evaporated from the sea is locked up on land as ice, leading to global fall in sea level
  • Eustatic rise in sea level
    1. At the end of a glacial period, melting ice sheets return water to the sea and sea level rises globally
    2. Global temperature increases and causes the volume of ocean water to increase (thermal expansion) leading to sea level rise
  • Isostatic changes
    1. Rises in local land level causes a fall in local sea level
    2. A fall in local land level produces a rise in local sea level
  • Post-Glacial Adjustment
    • During glacial periods, the weight of the ice depresses the crust in areas below the ice sheets
    • The melting of ice causes previously ice-covered crust to slowly rebound upwards whilst adjacent areas subside
  • Northern Britain
    Experiencing a isostatic fall in sea level as land is uplifted by 1.5 mm per annum
  • Southern Britain
    Experiencing an isostatic rise in sea level as land is lowered by 1 mm per annum
  • Land's End in Cornwall
    Sinking isostatically by 1.1 mm p.a., and there is a 2.8 mm eustatic rise in sea level due to climate change, producing a sea level rise of 3.9 mm per annum
  • Eustatic rise in sea level
    Rising magma at a constructive plate margin/hot spots lifts the overlying crust, reducing the capacity of the ocean and producing eustatic sea level rise
  • Isostatic changes
    • Folding of sedimentary rock by compressive forces at a destructive plate margin produces an isostatic fall in sea level for anticlines and a fall for synclines
    • Lava or ash from volcanic activity produces an isostatic fall
    • Sea floor spreading - carries volcanic islands away from the uplifted crust at mid-ocean ridge, colder, more dense crust subsides and sea levels rise
    • Faulting can uplift HORST blocks of crust producing isostatic rise in land & fall in local sea level
    • Subsidence of crust blocks by faulting form GRABEN experiencing isostatic fall in land level & rise in local sea level
  • Topics
    • 7B Planning Policies and Stuff
    • 7C Negative Effects of Governmet Policys
    • 4A.8 Local Governments
    • 8A Sympathetic Business Environments
    • 8B Partnerships
    • 8C Regeneration Strategies
    • 4A.9 - Rebranding
    • 9A Re-imaging
    • 9B Rebranding Deinstrialised Places
    • 9C Rebranding Rural Areas
    • 4A.10 How successful is Regeneration?
    • 10A Measuring the Success of Regeneration
    • 10B Success and Social Progress
    • 10C Improving Living Environments
    • 4A.11 Urban Stakeholders
    • 11A Successful or Not?
    • 4A.12 Rural Stakeholders
    • 12A Restructuring and Contested Decisions
    • Scarborough and High Wycombe
    • 7.1 Causes of Geopolitical Power
    • 7.1A Defining characteristics of powers
    • 7.1B Hard and Soft Power Spectrum
    • 7.1C Changing Importance of 7A and 7B
    • 7.2 Patterns of Power
    • 7.2A Imperial Era
    • 7.2B Indirect Control
    • 7.2C Geopolitical Stability and Risk
    • 7.3 Emerging Powers
    • 7.3A The Emerging Powers
    • 7.3B Strengths and Weaknesses
    • 7.3C Development Theory
    • 7.4 Superpowers and the Global Economy
    • 7.4A - Influence through IGOs
    • 7.4B TNCs
    • 7.4C Cultural Influence
    • 7.5 Superpowers and International Decision Making
    • 7.5A Global Action
    • 7.5B Alliances
    • 7.5C the United Nations
    • 7.6 Superpowers and the Physical Environment
    • 7.6A Resource Demands
    • 7.6B Environmental Governance
    • 7.6C Middle-Class Consumption on Emerging Powers
    • 7.7 Spheres of Influence
    • 7.7A Tension over Physical Resources
    • 7.7B Intellectual Property
    • 7.7C Political Spheres of Influence
    • 7.8 Developing Nations
    • 7.8A Emerging Powers and the Developing World
    • 7.8B Asian Tensions
    • 7.8C Middle East Tensions
    • 7.9 Challenges to Existing Superpowers
    • 7.9A Economic Problems
    • 7.9B Costs of Being a Superpower
    • 7.9C Future Power Balance
    • 8.1 Human Development?
    • 8.1A GDP and Human Development
    • 8.1B Best Development Goals?
    • 8.1C Education
    • 8.2 Variations in Health and Life Expectancy
    • 8.2A Variations in the Developing World
    • 8.2B Variations in the Developed World
    • 8.2C: Variations within Countries
    • 8.3 Governments and IGOs
    • 8.3A The relationship between economic and social development
    • 8.3B IGOs and Development
    • 8.3C MDGs and SDGs
    • 8.4 International Law and Agreements
    • 8.4A the UDHR
    • 8.4B the ECHR
    • 8.4C The Geneva Convention
    • 8.5 Global Human Rights Variations
    • 8.5A Human Rights Vs Economic Development
    • 8.5B Democratic Freedom
    • 8.5C Political Corruption
    • 8.6 Rights Variations Within Countries
    • 8.6A Gender and Ethnic Differences
    • 8.6B Health and Education Variations
    • 8.6C Demands for Equality
    • 8.7 Geopolitical Intervention
    • 8.7A Types of Interventions
    • 8.7B Governments, IGOs and NGOs
    • 8.7C Intervention and Sovereignty
    • 8.8 the Positive and Negative of Development
    • 8.8A About Development Aid
    • 8.8B Does Aid Work?
    • 8.8C Negatives of Economic Development
    • 8.9 Military Aid and Intervention
    • 8.9A Military Interventions
    • 8.9B Military Aid
    • 8.9C Direct Military Intervention
    • 8.10 Measuring Success of Interventions
    • 8.10A Variables for Measuring Success
    • 8.10B Democracy as 'Success'
    • 8.10C - Economic Growth as Success
    • 8.11 Success of Development Aid?
    • 8.11A Successes and Failures
    • 8.11B Aid and Equality
    • 8.11C Aid as Foreign Policy
    • 8.12 Military Interventions
    • 8.12A Costs of Recent Interventions
    • 8.12B Non-Military may be Better?
    • 8.12C - Consequences of Inaction
    • 1.1 Causes of Tectonic Hazards
    • 1.1A Distribution and Causes
    • 1.1B Distribution of Boundaries
    • 1.1C Intra-Plate Stuff
    • 1.2 Theoretical Frameworks
    • 1.2A and B Plate Tectonics
    • 1.2C Impacts on Hazards
    • 1.3 Explaining Tectonic Hazards
    • 3A Hazards from Earthquakes
    • 3B Hazards from Volcanoes
    • 1..3C - Tsunami
    • 1.4 Disaster!
    • 1.4A Definitions
    • 1.4B The PAR Model
    • 1.4C Impacts of Tectonic Hazards
    • 1.5 Tectonic Hazard Profiles
    • 1.5A Measuring Magnitude and Intensity
    • 1.5B Hazard Profiles
    • 1.5C Profile Examples
    • 1.6 Development and Governance
    • 1.6A Inequality
    • 1.6B Governance and Geographical Factors
    • 1.6C Disaster Context
    • 1.7 Trends and Patterns
    • 1.7A Trends since 1960
    • 1.7B Megadisasters
    • 1.7C Multiple Hazard Zones
    • 1.8 Theoretical Frameworks
    • 1.8A - Prediction and Forecasting
    • 1.8B The Hazard Management Cycle
    • 1.8C Park's Model
    • 1.9 Tectonic Hazard Impacts
    • 1.9A Disaster Modification
    • 1.9B Modifying Vulnerability
    • 1.9C Modifying Loss
    • 2B.1 The Littoral Zone
    • 2B.1A Parts of the Littoral Zone
    • 2B.1B Classifying Coasts
    • 2B.1C Rocky Coasts and Coastal Plains
    • 2B.2 Geological Structure
    • 2B.2A Concordant and Discordant
    • 2B.2B Their Morphology
    • 2B.2C Geological Structure and Cliff Profiles
    • 2B.3 Rates of Coastal Recession
    • 2B.3A Lithology
    • 2B.3B Rock Strata and Complex Cliff Profiles
    • 3C Vegetation Stabilisation of Sediment
    • 2B.4 Marine Erosion
    • 4A Waves and Beach Morphology
    • 4B Wave Erosion Processes
    • 4C Coastal Landscapes Produced by Erosion
    • 2B.5 Sediment Transport and Deposition
    • 5A Sediment Transportation
    • 5B Depositional Landforms
    • 5C The Sediment Cell Model
    • 2B.6 Sub-Aerial Processes
    • 6A Weathering
    • 6B Mass Movement
    • 6C Landforms Produced by Mass Movement
    • 2B.7 Sea Level Change
    • 7A Long-Term Sea Level Change
    • 7B Emergent and Submergent Coastlines
    • 7C Contemporary Sea Level Change
    • 2B.8 Rapid Coastal Retreat
    • 8A Human Activity and Coastal Recession
    • 8B Subaerial Processes Work Together
    • 8C Temporal Variations in Coastal Recession
    • 2B.9 Coastal Flooding
    • 9A Local Factors that Increase Coastal Flood Risk
    • 9B Storm Surges
    • 9C Climate Change and Coastal Flood Risk
    • 2B.10 Affected Communities
    • A - Economic and Social Losses from Recession
    • B - Flooding and Storm Surges
    • C - Environmental Refugees
    • 2B.11 - Coastal Management
    • 2.11A Hard Engineering
    • 2.11B Soft Engineering
    • 2.11C Sustainable Management
    • 2B: 12 Integrated Coastal Zone Management
    • 2B.12A Littoral Cells
    • 2B.12B Policy Decisions
    • 2B.2C Conflicts
    • 5.1 Importance to Life
    • 1A - A Closed System
    • 1B Importance and Size of Stores and Fluxes
    • 1C The Global Water Budget
    • 5.2 The drainage basin: an open system
    • 2A - the Hydrological Cycle
    • 2B Impact of Physical Factors
    • 2C - Impact of Human Factors
    • 5.3 Water Budgets and River Systems
    • 3.1 Water Budgets
    • 3B River Regimes
    • 3C Storm Hydrographs
    • 5.4 Deficits within the Hydrological Cycle
    • 4A - The Causes of Drought
    • 4B - Human Activity and Drought
    • 4C - Drought and Ecosystems
    • 5.5 Flooding
    • 5A - Meteorological Causes of Flooding
    • 5B - Human Activity and Flooding
    • 5C - Impacts of Flooding
    • 5.6 - Climate Change
    • 6A - Inputs and Outputs
    • 6B - Stores and Flows
    • 6C - Uncertainty
    • 5.7 Causes of Water Insecurity
    • 7A - Supply and Demand Mismatch
    • 7B - Causes of Water Insecurity
    • 7C - Finite Resources and Rising Demand
    • 5.8 Consequences and Risks of Water Insecurity
    • 8A - Causes and Pattern of Physical and Economic Scarcity
    • 8B - Importance of Water Supplies
    • 8C - Conflicts
    • 5.9 - Managing Water Supply
    • 9A - Hard Engineering
    • 5.9B Sustainable Water Management
    • 5.9C Integrated Drainage Basin Management
    • 6.1 Carbon and the Geological Cycle
    • 1A Stores and Fluxes
    • 1B Formation of Geological Carbon Stores
    • 6.1C - Geological Processes Releasing Carbon
    • 6.2 Biological Processes Sequestering Carbon
    • 6.2A Oceanic Sequestering
    • 6.2B Terrestrial Sequestering
    • 6.2C Biological Carbon
    • 6.3 Human Activity Altering the Carbon Cycle
    • 6.3A Atmospheric Carbon
    • 6.3B Maintaining a Balanced Carbon Cycle
    • 6.3C Fossil Fuel Combustion
    • 6.4 Energy Security
    • 6.4A The Energy Mix
    • 6.4B - Energy Consumption
    • 6.4C Energy Players
    • 6.5 Relliance on Fossil Fuels
    • 6.5A Mismatch between Supply and Demand
    • 6.5B Energy Pathways
    • 6.5C Unconventional Fossil Fuels
    • 6.6 Alternatives to Fossil Fuels
    • 6.6A Renewable and Recyclable Energy
    • 6.6B Biofuels
    • 6.6C Radical Technologies to Reduce Carbon Emissions
    • 6.7 Human Activity Threatening the Carbon and Water Cycles
    • 6.7A Growing Resource Demands
    • 6.7B Ocean Acidification
    • 6.7C Forest Health
    • 6.8 Implications for Human Wellbeing
    • 6.8A Forest Loss
    • 6.8B Rising Temperatures
    • 6.8C Declining Ocean Health
    • 6.9 Responses to Further Warming
    • 6.9A Uncertainty about the Future
    • 9.B Adaptation Strategies
    • 6.9C Mitigation Strategies