Medicines for the victims, 3. Normally, it varies between 14- 17mb/100 km, but sometimes it can be as high as 60mb/100km. Describe slope processes and the different types of landslides. CBSE guide notes are the comprehensive notes which covers the latest syllabus of CBSE and NCERT. Restriction on the construction and other developmental activities such as roads and dams, 2. Answer key is included as well.By purchasing this file, you agree not to make it publicly available (on websites, etc.) decreases with altitude) A-level Biology, AQA GCSE Geography A natural hazard is a threat of a naturally occurring event will have a negative effect on humans. 1. More significant near the surface, Creates circular movement of air in the vertical plain Out of these, the first two zones had experienced some of the most devastating earthquakes in India. This reorganization can involve systems transitioning to more positive trajectories. A lack of planning, preparedness and appropriate emergency management systems can lead to devastating to human . Relative Frequency = (# of desired outcome) / (#of OCR GCSE Geography, AQA A Level Geography In other words when the hazardous threat actually happens and harms humans, we call the event a natural disaster. 2. volcanism: experiences limited volcanic activity; Ardoukoba (298 m) last erupted in 1978; Manda-Inakir, located along the Ethiopian border, is also historically active. Ocean surface temperature of at least 27C. . The Ozone layer around the earth, if, dwindles further may cause Health hazards including Cancers . The remaining parts of India can be considered either free or less prone to the drought. Radiation damaging earthquakes occur in Hindu Kush mountains; flooding; droughts, destructive earthquakes; tsunamis occur along southwestern coast; floods; drought, mountainous areas subject to severe earthquakes; mudslides and floods in rainy season; droughts, volcanism: limited volcanic activity on the Ofu and Olosega Islands; neither has erupted since the 19th century, locally heavy rainfall causes periodic flooding on the plateau, frequent hurricanes and other tropical storms (July to October), katabatic (gravity-driven) winds blow coastward from the high interior; frequent blizzards form near the foot of the plateau; cyclonic storms form over the ocean and move clockwise along the coast; large icebergs may calve from ice shelfvolcanism: volcanic activity on Deception Island and isolated areas of West Antarctica; other seismic activity rare and weak, hurricanes and tropical storms (July to October); periodic droughts, ice islands occasionally break away from northern Ellesmere Island; icebergs calved from glaciers in western Greenland and extreme northeastern Canada; permafrost in islands; virtually ice locked from October to June; ships subject to superstructure icing from October to May, San Miguel de Tucuman and Mendoza areas in the Andes subject to earthquakes; pamperos are violent windstorms that can strike the pampas and northeast; heavy flooding in some areas, volcanism: volcanic activity in the Andes Mountains along the Chilean border; Copahue (2,997 m) last erupted in 2000; other historically active volcanoes include Llullaillaco, Maipo, Planchon-Peteroa, San Jose, Tromen, Tupungatito, and Viedma, occasionally severe earthquakes; droughts, hurricanes; lies outside the Caribbean hurricane belt and is rarely threatened, surrounded by shoals and reefs that can pose maritime hazards, icebergs common in Davis Strait, Denmark Strait, and the northwestern Atlantic Ocean from February to August and have been spotted as far south as Bermuda and the Madeira Islands; ships subject to superstructure icing in extreme northern Atlantic from October to May; persistent fog can be a maritime hazard from May to September; hurricanes (May to December), cyclones along the coast; severe droughts; forest fires, volcanism: volcanic activity on Heard and McDonald Islands, hurricanes and other tropical storms cause extensive flood and wind damage, droughts; cyclones; much of the country routinely inundated during the summer monsoon season, infrequent hurricanes; periodic landslides, flooding is a threat along rivers and in areas of reclaimed coastal land, protected from the sea by concrete dikes, frequent, devastating hurricanes (June to November) and coastal flooding (especially in south), hot, dry, dusty harmattan wind may affect north from December to March, violent storms from the Himalayas are the source of the country's Bhutanese name, which translates as Land of the Thunder Dragon; frequent landslides during the rainy season, flooding in the northeast (March to April), volcanism: volcanic activity in Andes Mountains on the border with Chile; historically active volcanoes in this region are Irruputuncu (5,163 m), which last erupted in 1995, and the Olca-Paruma volcanic complex (5,762 m to 5,167 m), periodic droughts; seasonal August winds blow from the west, carrying sand and dust across the country, which can obscure visibility, occasional volcanism, rock slides; harsh climate, surrounded by pack ice in winter, recurring droughts in northeast; floods and occasional frost in south, none; located outside routes of Indian Ocean cyclones, hurricanes and tropical storms (July to October), typhoons, earthquakes, and severe flooding are rare, destructive earthquakes and cyclones; flooding and landslides common during rainy season (June to September); periodic droughts, prolonged droughts; seasonal harmattan wind produces obscuring dust; volcanically and seismically active, volcanism: Fogo (2,829 m), which last erupted in 1995, is Cabo Verde's only active volcano, monsoonal rains (June to November); flooding; occasional droughts, volcanic activity with periodic releases of poisonous gases from Lake Nyos and Lake Monoun volcanoes, volcanism: Mt. area PER time results in a steady state (climate/temperature) in the long run Radiation- Vaccum, solids, liquids waves in electromagnetic fields, Energy and phases of water Correlation with known variability NUCLEAR EXPLOSIONS 2. Socio-Environmental Consequences of Earthquakes The idea of an earthquake is often associated with fear and horror due to the scale, magnitude and suddenness at which it spreads disasters on the surface of the earth without discrimination. Convection- liquids and gases Initial conditions for the emergence of a tropical cyclone: (i) Large and continuous supply of warm and moist air that can release enormous latent heat. Sometimes, this height can be up to 15m or more, which causes large-scale destructions along the shores. Potential Energy: convection/ meteorites, Energy budget falls below what the precipitation can replenish. In other words when the hazardous threat actually happens and harms humans, we call the event a natural disaster. Upward pressure gradient: dp/dz = - (rho)*g rate of change of pressure with Natural Hazards: Earth's Processes as Hazards, Disasters, and Catastrophes by Edward Keller and Robert Blodgett Latent Heat of Fusion. The most common landforms are slopes which are dynamic, evolving systems in which surface material is constantly moving down slope in the process of mass wasting at rates that range from imperceptible, creep to . Storm surge in the coastal areas 5. This was subsequently called the Yokohama Strategy and Plan of Action for a Safer World. 4. Modern changes in perception of natural disasters and hazards: There has also been a change in the perception of natural disasters and hazards. By the time the mountaintop is reached, all vapor is condensed and snowed out; and Ground water, 5. E. diurnal and seasonal cycles. Moreover, with the help of development of techniques to monitor the behaviour of cyclones, it has become possible to manage the cyclonic hazard to some extent. The best app for CBSE students now provides Natural Hazards and Disasters class 11 Notes Geography latest chapter wise notes for quick preparation of CBSE exams and school-based annual examinations. . Moderate to severe drought occurs every year. Causes for natural disasters: 1.Geographical: are out of our control upward) to balance downard gravity (hence the minus sign), where gravity is more or less Various Programs initiated by MPPCS Notes are as follows:-MPPCS Mains 2022 Tests and Notes Program; It is a common experience that while some parts of the country reel under floods, there are regions that face severe drought during the same period. Its vastness in terms of natural attributes combined with its prolonged colonial past, continuing various forms of social discriminations. Depopulating the flood plains in the regions of flash floods, 7. Chemical energy Biological hazards. Shifting of the people and their livestock to safer places, 5. Kinetic energy Download the GCSE Geography Natural Hazards: Introduction Resources module. Our teachers have designed these concept notes for the benefit of Grade 11 students. Roughly 4 x 10^26 W Technological power has given large capacity to human intervention in nature. areas prone to natural hazards, were more vulnerable to disasters. A natural disaster can be defined as "A major event caused by Earth's natural processes that leads to significant environmental degradation and loss of life." A natural disaster is frequently preceded by a natural hazard. Electromagnetic energy Geomorphic agents 3. -You will pay for hazards, individually or as a society. Hence, combined efforts at the international levels are the possible ways of dealing with these disasters as has been in the case of the tsunami that occurred on 26th December 2004 in which more than 300,000 people lost their lives. Remaining parts of the country fall under moderate to very Low Damage Risk Zone. Geothermal energy is very small Introduction of the Disaster Management Bill, 2005 and establishment of National Institute of Disaster Management are some examples of positive steps taken by Government of India. Availability of fodder and water for the cattle 4. Soil moisture, 6. are some of the concrete steps towards the mitigation and management of natural disasters initiated at different levels. Higher temp = shorter wavelength! apparent deflection from its path, as seen by an observer on the earth. The resolution of the World Conference on Natural Disasters Reduction or Yokohama Strategyis as mentioned below: (i) It will note that each country has the sovereign responsibility to protect its citizens from natural disasters; (ii) It will give priority attention to the developing countries, particularly the least developed, landlocked countries and small-island developing states; (iii) It will develop and strengthen national capacities and capabilities and, where appropriate, national legislation for natural and other disaster prevention, mitigation and preparedness, including the mobilisation of non-governmental organisations and participation of local communities; (iv) It will promote and strengthen sub-regional, regional and international cooperation in activities to prevent, reduce and mitigate natural and other disasters, with particular emphasis on: (a) human and institutional capacity-building and strengthening; (b) technology sharing: the collection, the dissemination and utilisation of information; and (c) mobilisation of resources. UPPCS Notes brings Prelims and Mains programs for UPPCS Prelims and UPPCS Mains Exam preparation. DROUGHTS: The term drought is applied to an extended period when there is a shortage of water availability due to inadequate precipitation, excessive rate of evaporation and over-utilisation of water from the reservoirs and other storages, including the ground water. Spectrum of radiation is characterized by wavelengths Vegetation cover and 6. events WJEC GCSE Geography Past Papers, Download the Introduction to Natural Hazards Module, Define what natural hazards and disasters are, Identify the different kinds of hazards and their examples, Describe the factors that affect disaster risk, Explain the global trend when it comes to disasters and their impact, Describe the distribution of hazards around the world, Identify different ways to prepare and manage hazards, and, Use all these concepts to explain disaster occurrence and its factors, An editable PowerPoint lesson presentation, A glossary that covers the key terminologies of the module, Topic mindmaps for visualising the key concepts, Printable flashcards to help students engage active recall, A quiz with an answer key to test knowledge and understanding of the module. All Revision notes for Class 11 Geography have been designed as per the latest syllabus and updated chapters given in your textbook for Geography in Standard 11. Geology 2. Natural hazards in Tamilnadu Introduction Natural disasters are consequences of a natural hazard like an earthquake, landslide, cyclone, flood, or tsunami which affects human activities. Statistical description Class 11 Geography notes on Chapter 7 Natural Hazards and Disasters class 11 Notes Geography are also available for download in CBSE Guide website. travelled, Jet streams are neither steady nor straight, Troughs and ridges represent the embedded weather systems, Huge temperature gradient Incoming solar energy (per unit time) = a 2 S (W) No, keep comment Yes, delete comment Report comment. According to some estimates, nearly 19 per cent of the total geographical area of the country and 12 per cent of its total population suffer due to drought every year. 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