Some floods develop slowly‚ while others such as flash floods‚ can develop in just a few minutes and without visible signs of rain. Additionally‚ floods can be local‚ impacting a neighbourhood or community‚ or very large‚ affecting entire river basins. ------------------------------------------------- Etymology[edit source | editbeta] The word "flood" comes from the Old English flod‚ a word common to Germanic languages (compare German Flut‚Dutch vloed from the same root as is seen in flow‚
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were not adequate to contain the amount of water collected. In a state of panic there were sandbags‚ potato ridges and barriers of uncompacted dirt added to the levees to try to prevent a flood. During the continued spring high water the collected drainage all came together at Old River in units exceeding two million cubic feet per second. Twenty-five per cent of that left the Mississippi channel and went to the Atchafalaya. Professor Racphael G. Kazmann remembers his experience walking over the structure
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enormous amount of water at the wrong time of year to the region. The water from the rivers was both a scourge and a blessing for those living around the river basins. (Tignor et al.‚ Worlds Together‚ 50). The Southern area of the region is at a very low altitude‚ which had positive and negative affects concerning irrigation and drainage. Because the region lacked significant natural barriers‚ there were constant threats of invasions from surrounding peoples. The Tigris and Euphrates created passageways
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WATER RESOURCES Water and its uses The average consumption of water in India per person each day is minimum 135L. This water is used for various purposes from bathing to drinking. This water used should be clean and sterile. Water holds more importance than most of resources . Due to rising threats on ecosystem it has become necessary to find means of saving water. Resources of water – The fresh water resources are… Surface wate Under river flow Ground water Desalination Frozen
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agro-ecological diversities in soil‚ rainfall‚ temperature‚ and cropping system. Besides favorable solar energy‚ the country receives about 3 trillion m3 of rainwater‚ 14 major‚ 44 medium and 55 minor rivers share about 83 per cent of the drainage basin. About 210 billion m3 water is estimated to be available as ground water. Irrigation water is becoming a scarce commodity. Thus
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Pre A level task Geography Erosional landforms: Corrie = Corries‚ also known as cirques‚ are often the starting point of a glacier. Snowflakes collect in a hollow. As more snow falls‚ the snow is compressed and the air is squeezed out to become firm. With the pressure of more layers of snow‚ the firm will‚ over thousands of years‚ become glacier ice. Erosion and weathering by abrasion‚ plucking and freeze-thaw action will gradually make the hollow bigger. Corries will decrease because of
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40E 80E 120E 120N TERTIARY COMPUTER MODELING OF SLOPE STABILITY IN MINING THE TAR SAND OF DAHOMEY BASIN‚ SOUTHWESTERN NIGERIA David Afolayan ALAO and Mopa BASSAGI DEPARTMENT OF GEOLOGY AND MINERAL SCIENCES‚ UNIVERSITY OF ILORIN P.M.B. 1515‚ ILORIN‚ KWARA STATE‚ NIGERIA Abstract The need to have stable slopes in open pit mining of the tar sand deposit of the Dahomey Basin‚ Southwestern Nigeria is emphasized in this study. In the Loda village‚ Southwestern Nigeria‚ samples of the lateritic
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which the ICAR underwent in 1973‚ the country has been divided into eight major agro-ecological regions for more meaningful planning of agricultural research and development. They are : 1. Humid Western Himalayan Region 2. Humid Bengal - Assam Basin 3. Humid Eastern Himalayan Region and Bay Islands 4. Sub-humid Sutlej-Ganga Alluvial Plains 5. Sub-humid to Humid Eastern and South-eastern Uplands 6. Arid Western Plains 7. Semi-arid Lava Plateau and Central Highlands 8. Humid to Semi-arid Western
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Quaternary Period 2 to 0 Million Years Ago Summary The Quaternary Period began about 1.8 million years ago and consists of two epochs: The Pleistocene Epoch‚ which is 1.8 million to 11‚000 years ago‚ and The Holocene Epoch‚ which is 11‚000 years ago to present. During this time there was very little movement of the continents themselves (Figure 1.3). During this period there were repetitive cycles of cold and warm climate that created the advancing and retreating of ice sheets. The moving of
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River Nile has been the backbone of Egypt’s agriculture since Egypt Civilization. Many people depend on this river‚ which supplies them with water to grow their crops. Egypt water uses management projects like basin irrigation; farmers to grow their crops throughout the year practise basin irrigation. River Nile and Aswan Dam supply farmers with water through irrigation canals (Myers‚ Barrick & Sammy 2012). 2. Issue Analysis Eight billion acre benefit from these waters producing an
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