The document discusses coastal environments and processes. It begins by defining a coast and describing the different zones and landforms that make up coasts, such as beaches, headlands, and cliffs. It then explains how coasts are dynamic environments that change over time due to various natural processes and forces, including waves, tides, currents, geology, and ecosystems. Specific coastal erosional processes like corrasion, attrition, solution, and hydraulic action are also outlined.
The document summarizes plate tectonics and its relationship to various geological phenomena. There are three main types of plate boundaries - divergent where plates move apart, convergent where they collide in subduction or collision zones, and transform where they slide past each other. Plate movement is responsible for volcanoes, earthquakes, and mountain building. Earthquakes occur when stress builds up at faults until the plates suddenly slip, releasing energy. Tsunamis are large sea waves generated by earthquakes or landslides that flood coastal areas.
This document provides an overview of global hazards and trends related to climate change. It begins with key terms used to describe different types of hazards. Statistics show that while the number of deaths from disasters has decreased due to better protection, the total number affected has increased significantly since the 1990s. This is likely due to growing populations living in at-risk areas combined with more frequent or intense extreme weather events associated with climate change. El Ni?o/La Ni?a cycles also influence hazard patterns globally, bringing drought to some areas and floods to others. Human activities like deforestation exacerbate the impacts of disasters by increasing vulnerability.
This document discusses phenomena related to El Ni?o and La Ni?a events, including increased tropical storms and hurricanes, droughts and brush fires, flooding on the US Pacific coast, and declining Peruvian anchovy populations. It asks questions about what causes El Ni?o, provides examples of sea surface temperature anomalies associated with El Ni?o and La Ni?a, and discusses tools like NOAA buoys and satellites that are used to measure conditions and make predictions about El Ni?o and La Ni?a events.
This document defines tides and discusses theories about their generation and types. It introduces the equilibrium and dynamic theories of tides, which explain tides through the gravitational forces of the moon and sun. It describes different types of tides, including spring tides during a full or new moon, neap tides during quarter phases, and rare proxigean spring tides when the moon is closest to Earth. The document also briefly discusses harnessing tidal energy and provides references used.
CSEC Human Geography- Population , Urbanization and MigrationOral Johnson
?
This document entails the first half of the human geography syllabus for CSEC ( excluding economic activities. It looks at population, urbanization and Migration
Impact of Madden Julian Oscillation (MJO) on Indian RainfallSowmiya Raja
?
Most of us know only about El Nino Southern Oscillation (ENSO) which determine the rainfall in tropics and subtropics. Here is another oscillation which moves across the globe and determines the rainfall pattern of Australia, Maritime continent and India. It plays an important role in NEM of Tamil Nadu.
The document discusses coastal environments and processes. It begins by defining a coast and describing the different zones and landforms that make up coasts, such as beaches, headlands, and cliffs. It then explains how coasts are dynamic environments that change over time due to various natural processes and forces, including waves, tides, currents, geology, and ecosystems. Specific coastal erosional processes like corrasion, attrition, solution, and hydraulic action are also outlined.
The document summarizes plate tectonics and its relationship to various geological phenomena. There are three main types of plate boundaries - divergent where plates move apart, convergent where they collide in subduction or collision zones, and transform where they slide past each other. Plate movement is responsible for volcanoes, earthquakes, and mountain building. Earthquakes occur when stress builds up at faults until the plates suddenly slip, releasing energy. Tsunamis are large sea waves generated by earthquakes or landslides that flood coastal areas.
This document provides an overview of global hazards and trends related to climate change. It begins with key terms used to describe different types of hazards. Statistics show that while the number of deaths from disasters has decreased due to better protection, the total number affected has increased significantly since the 1990s. This is likely due to growing populations living in at-risk areas combined with more frequent or intense extreme weather events associated with climate change. El Ni?o/La Ni?a cycles also influence hazard patterns globally, bringing drought to some areas and floods to others. Human activities like deforestation exacerbate the impacts of disasters by increasing vulnerability.
This document discusses phenomena related to El Ni?o and La Ni?a events, including increased tropical storms and hurricanes, droughts and brush fires, flooding on the US Pacific coast, and declining Peruvian anchovy populations. It asks questions about what causes El Ni?o, provides examples of sea surface temperature anomalies associated with El Ni?o and La Ni?a, and discusses tools like NOAA buoys and satellites that are used to measure conditions and make predictions about El Ni?o and La Ni?a events.
This document defines tides and discusses theories about their generation and types. It introduces the equilibrium and dynamic theories of tides, which explain tides through the gravitational forces of the moon and sun. It describes different types of tides, including spring tides during a full or new moon, neap tides during quarter phases, and rare proxigean spring tides when the moon is closest to Earth. The document also briefly discusses harnessing tidal energy and provides references used.
CSEC Human Geography- Population , Urbanization and MigrationOral Johnson
?
This document entails the first half of the human geography syllabus for CSEC ( excluding economic activities. It looks at population, urbanization and Migration
Impact of Madden Julian Oscillation (MJO) on Indian RainfallSowmiya Raja
?
Most of us know only about El Nino Southern Oscillation (ENSO) which determine the rainfall in tropics and subtropics. Here is another oscillation which moves across the globe and determines the rainfall pattern of Australia, Maritime continent and India. It plays an important role in NEM of Tamil Nadu.