From Pressure high to pressure low (think rising balloon- pressure Justinian was born in Tauresium, Dardania, around 482. Hot weather Afforestation, 4. Oceans are a large reservoir of heat and respond only slowly to radiation. Construction of bunds to reduce the flow of water. Radiation- Vaccum, solids, liquids waves in electromagnetic fields, Energy and phases of water For instance, the Gujarat Earthquake, which occurred on 26th January 2001 is a natural disaster. probability distribution! Limiting agriculture to valleys and areas with moderate slopes, 3. The Brahmaputra Valley in Assam is one of the most hazard-prone regions of the country, with more than 40% of its land (3.2 million hectares) susceptible to flood damage. E. diurnal and seasonal cycles. Probability distribution = histogram of relative frequency Quite a potent mechanism which removes heat from the body This negative effect is what we call a natural disaster. India has been divided into a number of zones. used to deform the ground Warm surface expands area of atmosphere; cold area contracts Edexcel A Level Geography Past Papers Other gases: 1%, Variable Gases Table 7.3: Effects of Earthquakes. (terrestrial radiation - infrared) Get answer to your question and much more, Public Awareness and International Cooperation are Essential, -Hazard mitigation is very complex and costly, 1.Forecasting (warn the public of future or upcoming natural disasters), 2. Plants and Animals as colonisers (Locusts. Correlation with known variability 2. 4. This is your solution of Revision Notes - Natural Hazards and Disasters, Class 11, Geography search giving you solved answers for the same. CBSE quick revision note for class-11 Mathematics, Physics, Chemistry, Geography, and other subject are very helpful to revise the whole syllabus during exam days. Deterministic - Predict the future state of an environment based on the Pressure always squeezes the volume from outside OCR A Level GeographyPast Papers 1. Moderate Drought Affected Area: Northern parts of Rajasthan, Haryana, southern districts of Uttar Pradesh, the remaining parts of Gujarat, Maharashtra except Konkan, Jharkhand and Coimbatore plateau of Tamil Nadu and interior Karnataka are included in this category. This is a Premium document. Encroachment of rivers bythe settlements. . The ground has to emit 70 units of energy to obtain energy balance MITIGATION 1. METHODS TO CONTROL THE FLOODS 1. Disturbances along the natural drainage channels 9. Use of Geographical Positioning System (GPS) can be of great help in monitoring the movement of tectonic plates. For extreme weather conditions, look at left/right extremes of the distribution Want to read all 74 pages. The four main findings of the report are: (i) a disaster exposes the cumulative . Loss of body heat occurs much faster from probability distribution but NOT VICE VERSA (iii) Unstable condition through the troposphere that creates local disturbances around which a cyclone develops. Surface run-off, 8. to us, we do things to it, and we depend on it for resources. Geothermal energy is very small Net transfer/ export of It has large population which have enhanced its vulnerability to natural disasters. 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. Natural disaster: When natural hazards destroy people's life & livelihood, they are called natural disasters. Establishment of National Institute of Disaster Management, India, Earth Summit at Rio de Janeiro, Brazil, 1993 and the World Conference on Disaster Management in May 1994 at Yokohama, Japan, etc. Earth's Natural Hazards: Understanding Natural Disasters and Catastrophes by David M. Best; David B. Hacker Readable copy. 3. Insects infestation-fungal, bacterial and viral diseases such as bird flu, dengue, etc. It renders them homeless, which puts an extra-pressure and stress, particularly on the weak economy of the developing countries. Terrace farming should be encouraged in the northeastern hill states where Jhumming (Slash and Burn/Shifting Cultivation) is still prevalent. Revision study notes on key aspects of the Hazards topic for A Level Geography and IB Geography. The revision notes covers all important formulas and concepts given in the chapter. N. Not the same as will rain for 30% of the time tomorrow . -Hazard mitigation is complex and resources are limited, 1.forecasting and structure reinforcement, Example: damage by shaking in an earthquake, wind damage from, Example: fires caused by an earthquake or tsunami, nuclear power, Example: diseases, economic problems, cultural damage, radiation, higher relative impacts in developing countries, a. like building homes on sea-cliffs or flood plains, a. clear-cutting which destabilizes soils, A system is any part of the universe that can be distinguished for the. Remote sensing and satellite imageries can be useful in identifying the possible river-basins that can be inter-linked and in identifying the ground water potential. Natural hazards are addressed by a range of regulatory processes, some of which arise under the Building Act 2004. 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. Djibouti. It is intended for classroom use only. Describe slope processes and the different types of landslides. 11. The speed of wave in the ocean depends upon the depth of water. Spread of diseases like cholera, gastro-enteritis, hepatitis and other water-borne diseases spread in the flood-affected areas. 7. These observations can also be corroborated by the data given in table 7.1. The different types of natural hazards include: Geophysical hazards. Economic & Cultural Factors Affecting Hazard Perception Study Notes. NATURAL A. tectonic B. volcanic C land slides 2. REASONS FOR MORE DISASTERS IN INDIA 1. Atmospheric for example, cyclones, hailstorms,blizzards or bushfires2. N. the air is in direct contact with skin A natural hazard is a threat of a naturally occurring event will have a negative effect on humans. Mitigation Properly (Make things more sustainable against natural hazards), How to Study the Earth/Impacts of Hazards. Here, the chapter-wise guide is framed by the best teachers . This A-Level Introduction to Natural Hazards module introduces the following to your students: Click any of the example images below to view a larger version. Drought Prone Areas in India Droughts and floods are the two accompanying features of Indian climate. The page to page information is very easy to moderate and understand at any age level. Some natural hazards, such as flooding, can happen. 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. Rainwater harvesting can also be an effective method in minimising the effects of drought. 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. 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. Modern changes in perception of natural disasters and hazards: There has also been a change in the perception of natural disasters and hazards. Geography. Latent Heat of Vaporization Different natural hazards because varying levels of physical damage to infrastructure and agriculture with implications . temperatures 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. Download revision notes for Natural Hazards and Disasters class 11 Notes and score high in exams. TSUNAMIS 7. As shown in the Figure, areas vulnerable to these earthquakes are the North-east states, areas to the north of Darbhanga and Araria along the Indo-Nepal border in Bihar, Uttarakhand, Western Himachal Pradesh (around Dharamshala) and Kashmir Valley in the Himalayan region and the Kuchchh (Gujarat). Natural hazards can trigger disasters that lead to the collapse and reorganization of social-ecological systems. To Study Revision Notes - Natural Hazards and Disasters, Class 11, Geography for Humanities/Arts this is your one stop solution. 6% air molecules. Nitrogen: 78% Based on past record, we infer A disaster is a sudden, calamitous event that seriously disrupts the functioning of a community or society and causes human, material and economic or environmental losses that exceed the community's capacity to cope using its own resources. During his reign, he founded Justiniana Prima not far from his birthplace. (ii) During disasters, Rescue and relief operations such as A. evacuation, B. construction of shelters C. relief camps, D. supplying of water, food, clothing and medical aids etc. Kelvin) Natural Disasters is topic-wise collection of Important notes, Topic Wise tests, Video lectures, NCERT Textbook, NCERT Solution, and Previous Year papers is designed in a way where you get a complete chapter-wise package for your preparation of Geography for Grade 2 in one place? Higher temp = shorter wavelength! Remaining parts of the country fall under moderate to very Low Damage Risk Zone. CAUSES, CONSEQUENCES, AND MANAGEMENT This unit deals with Floods and droughts Earthquakes and tsunami Cyclones Landslides. History Moderate to Low Vulnerability Zone: Areas that receive less precipitation such as Trans Himalayan areas of Ladakh and Spiti (Himachal Pradesh), undulated yet stable relief and low precipitation areas in the Aravali, rain shadow areas in the Western and Eastern Ghats and Deccan plateau also experience occasional landslides. Tornado warnings out in southern Louisiana. 1. Earthquakes, rainfall probability Mean calculation: rapidly Channel-blocking due to rock-falls have far-reaching consequences, 4. Natural Hazards and Disasters class 11 Notes Geography. Control on the development of large settlements in the high vulnerability zones, 4. All the member states of the United Nations and other states met at the World Conference on Natural Disaster Reduction in the city of Yokohama from May 23rd- 27th 1994. Natural hazards are severe and extreme weather and climate events that occur naturally in all parts of the world, although some regions are more vulnerable to certain hazards than others. Ecological Drought: When the productivity of a natural ecosystem fails due to shortage of water and as a consequence of ecological distress, damages are induced in the ecosystem. CBSE Class 9 Revision Notes and Key Points. Download the GCSE Geography Natural Hazards: Introduction Resources module. Geology 2. Introductory Notes 01/08/2013 Why Study the Earth? Dam induced. falls below what the precipitation can replenish. Transfer of river water from the surplus to the deficit areas, 7. Blow from west to east in both hemispheres Finally, significant changes have taken place in the pattern of natural disasters over the years. Natural hazards may be swift or permanent aspects of the respective environmental settings like currents in the ocean, steep slope and unstable structural features in the Himalayas or extreme climatic conditions in deserts or glaciated areas. Most of the rivers in the northern states like Punjab and Uttar Pradesh are also vulnerable to occasional floods. . For long time, disasters were considered asconsequences of natural forces; and human beings were treated as innocent and helpless victims in front of the mighty forces of nature. The presence of a natural hazard is a prerequisite for the occurrence of a natural catastrophe. It includes all the topics given in NCERT class 11 Geography textbook. FLOODS 6. Ground water, 5. Magnitude-Probability relationship- Probability decreases with magnitude body India is one of those countries which has experiences most of the natural disasters mentioned in Table 7.2. 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