Geomorphology is the study of landforms and the processes that shape them. Fluvial Geomorphology is the study of role of rivers in forming the morphology of the earth. In short it is the study of landform evolution related to rivers. Rivers are significant geo morphological agents, they show an amazing diversity of form and behavior and transfer water and sediment from the land surface to the oceans…
The basic concepts in fluvial geomorphology are Equilibrium, Regime Theory and Channel Geometry, Geomorphic Thresholds and Scale. Equilibrium state is one in which the input of mass and energy to a specific system equals the outputs from the same system. In fluvial geomorphology it is this equilibrium state that the stream channels tend to achieve
Regime theory is grounded on the propensity of a stream system to obtain an equilibrium state under constant environmental conditions. The Regime Theory has a set of empirical equations relating channel shape to discharge, bank resistance and sediment load. It laid the foundation for a large body of work in Fluvial Geomorphology poring on the geometric properties of equilibrium alluvial channels and their adjustments to discharge and sediment transport regimes.
Many of the concepts in fluvial geomorphology can be traced to European origins; however, "Classical" American geomorphology as expressed by W.M. Davis has its roots in the Surveys of the Western United States conducted by the U.S. Geological and Geographical Survey following the Civil War. The leading figures in this period of exploration were John Wesley Powell, Gore Karl Gilbert, and Clarence E. Dutton. Others of note during this time frame were Ferdinand V. Hayden, Lt. George N.
Wheeler, and Archibald R. Marvine. As the west was being explored and the landforms analyzed, these individuals formulated several key ideas about geomorphology.
Clarence Dutton made contributions by creating an awareness of isostatic adjustments and descriptions of landforms. lie also discussed the "Great Denudation," a period of extensive erosion which he felt created the Colorado Plateau. His writings also
contained several references to the idea of parallel retreat of slopes. This concept is based upon a belief that hillsides maintain their angle of slope and form as erosion occurs.
The first fluvial geomorphic model was the fluvial geographical cycle or the cycle of erosion, developed by William Morris Davis between 1884 and 1899. The cycle was inspired by theories of evolution, and was depicted as a sequence by which a river would cut a valley more and more deeply, but then erosion of side valleys would eventually flatten out the terrain again, now at a lower elevation. The cycle could be started over by uplift of the terrain. The model is today considered too much of a simplification to be especially useful in practice.
The Geographical Cycle, as envisioned by Davis, starts with the rapid uplifting of a plain and the beginning of fluvial erosion. Erosion of this initial stage soon produces the second stage, youth. This stage is characterized by low relief and poor drainage with road flat water divides. As the erosion process continues, relief increases until the mature stage is reached. At this time, narrow ridges form water divides and very little flat terrain remains. Additional erosion leads to the old age stage in which relief in slight and low flat plains art dominant. The "almost featureless" plain resulting from the Geographical Cycle was termed a peneplain by Davis. Among suggested examples of peneplains are the Rocky Mountain Peneplain in the Colorado ...
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(“Fluvial Geomorphology Essay Example | Topics and Well Written Essays - 2000 words”, n.d.)
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(Fluvial Geomorphology Essay Example | Topics and Well Written Essays - 2000 Words)
“Fluvial Geomorphology Essay Example | Topics and Well Written Essays - 2000 Words”, n.d. https://studentshare.net/science/281294-fluvial-geomorphology.
Conclusion The pathways and stores of water, sediment and nutrients from the uplands to the coast in typical northwest England catchments 1). Introduction Water usually flows from higher ground to lower ground in a bid to find its own level. The natural water cycle sees water travel from land to air and sea, its state changing from liquid to vapour and sometimes to solid where temperatures are extremely cold.
Name: Instructors name: Course: Date: Watersheds Mississippi watershed is found along Mississippi river which flows in the United States of America and the river emerges from western part of Minnesota and it flows towards the south at 4,070 km towards the delta of the Mississippi river.
The response of watershed to rainfall depends on factors which have a great effect on the shape of a hydrograph. The effects of soil saturation and the surroundings are the factors that often affect the hydrograph. The steepness of the surrounding lands with the drainage density is also a factor.
A hydrograph plots the river discharge and amount of rainfall as a function of time.
In the study of storm drainage, the analysis of hydrographs are important. A hydrograph plots the river discharge as a function of time. Measurements are done at a certain point in a river.
There are factors that control the shapes of a hydrograph. According to Weyman, 1975 there are different shapes that are shown and the main components are labeled. The components of a hydrographs are the rising limb, the falling limb ,the peak discharge and the lag time.
A hydrograph also represents how a watershed reacts to rainfall. The response of a watershed to rainfall depends on several factors which affects the shape of a hydrograph. This represents the effect of rainfall on a particular basin. This is a hypothetical response of a watershed to the input of rainfall.
Hydrographs are records for the study of storm drainage. It is a graph of the flow in a stream over a period of time. Peaks in a hydrographs are usually the results of precipitation events while troughs represent It is graph of the flow in a stream over a period of time The peaks in the hydrograph are results of precipitation events while troughs represent dry seasons.
that drains in all of the states in America or to approximately 31 states within the United States of America between the Appalachian Mountains and the rocky extending to the southern regions of Canada. River Mississippi is ranked as the largest and the longest river in the
In the past, it was defined as forms of topography genetic study and used to explain the earth’s surface morphology. Presently, it refers to the study of the physical land-surface features of the earth such as plains, rivers and hills.