Hydrology

Better Essays
Name: Lee An Qi
Class: 3H/7
Date: 2 June 2012

Urbanization is the process that leads to an increase in the number and proportion of people living in urban settlements such as cities or towns. It also refers to the increase in the size of land area occupied by urban settlements. To cope with urbanization within a drainage basin, urban development and deforestation are carried out, which affect flows to and within a river channel. Other factors like drainage density, climate, area of drainage basin and gradient of slope can also affect flows to and within a river channel. Flows to and within a river channel also include overland flow, infiltration, through flow and base flow. Overland flow is the movement of rainwater over land. It occurs when either the storm is too heavy for water to infiltrate into the soil, where the soil is impermeable or when the soil has become saturated. Infiltration is the downward movement of water through tiny pores in the soil. Through flow is the water reaching the river through the soil and the underlying rock layers. Base flow is the water stored at a depth in rocks. I agree to a large extent that urbanization within a drainage basin can affect flows to and within a river channel. When urban development happens within a drainage basin, it means that more land is required for the development of housing and industries to meet the needs of the urban population, and as a result, built-up areas will increase. To have more land, parts of the drainage basin will be converted into concrete pavements and tarred roads. The concrete pavements and tarred roads prevent infiltration as most of the roads are made of granite and are impervious. As a result, there is an increase in the amount of overland flow into the rivers, which causes floods to occur. Also, when part of the river channel is being blocked, the river cannot flow as smoothly as before. The speed of the river flow will decrease.

For example, in London, the areas

You May Also Find These Documents Helpful

  • Good Essays

    Hydrology

    • 942 Words
    • 4 Pages

    UNIVERSITY OF CAPE COAST FACULTY OF SOCIAL SCIENCES DEPARTMENT OF GEOGRAPHY AND REGIONAL PLANNING COURSE TITLE: GEOMORPHOLOGY AND OCEANOGRAPHY COURSE CODE: GEO 302 INDEX NO: SS/BSS/10/0010. QUESTION What is Hydrology? Hydrology is an essential field of science since everything from tiny organisms to individuals to societies to the whole of civilisation depends so much on water. Water is, therefore, an essential resource that is required by all life on earth and covers about…

    • 942 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Intro to Hydrology

    • 1108 Words
    • 5 Pages

    CE 110 Hydrology Cornelio Q. Dizon Assistant Professor Institute of Civil Engineering University of the Philippines CE 110 – HYDROLOGY COURSE DESCRIPTION: Weather and hydrologic cycle; precipitation, evaporation, transpiration and infiltration; groundwater flow; rainfall-runoff relations; unit hydrograph; storage and channel routing; flood and drought frequency analysis COURSE OBJECTIVES: To introduce students to the basic definitions and principles, analytical methods, design methods…

    • 1108 Words
    • 5 Pages
    Good Essays
  • Good Essays

    Hydrology Paper

    • 802 Words
    • 4 Pages

    Waves, Currents, and Tides By Ben Houghton 1/28/09 My paper will focus on waves, currents, and tides. Our coast is affected greatly by these three things. My paper will explain how the waves, currents, and tides affect the people and environment of the coastal plain. Waves are a very powerful part of nature. They come in all sizes and they can be shaped many different ways. There are many parts to a wave. There is the crest, which is the highest point of the wave. The trough is the lowest point…

    • 802 Words
    • 4 Pages
    Good Essays
  • Satisfactory Essays

    Hydraulics and Hydrology Lec

    • 2297 Words
    • 10 Pages

    HYDRAULICS and HYDROLOGY James E Ball - Hydrology Component SUBJECT DETAILS 1 CONTACTS  Assoc Prof James Ball    james.ball@uts.edu.au ph – 9514 2623 Office Hours   Monday 2:00 – 4:00pm Contact by email for appointment SUBJECT CONCEPT The objective of this component of the subject is:  Introduce engineering hydrology;  Introduce hydrological processes;  Introduce flood estimation; and  Introduce engineering hydrology applications…

    • 2297 Words
    • 10 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Hydrology Iowa Units

    • 484 Words
    • 2 Pages

    53:119 Hydrology Fall 2012 UNITS AND MEASURES Fundamental measures (and their units in the SI and English systems) are: Length (m - meters; ft - feet) Mass (kg - kilograms) Time (s - seconds) Temperature (K - Kelvin; °F - degree Fahrenheit) Derived measures (and their SI and English equivalents) are: Area (m2 - square meters; ft2 - square feet) Volume (m3 - cubic meters; ft3 - cubic feet) Flow (m3 s-1 - cms; ft3 s-1 - cfs [volume per time]) Force (Newton (N) = 1 kg m s-2; lb - pound) Energy (Joule…

    • 484 Words
    • 2 Pages
    Satisfactory Essays
  • Better Essays

    The Hydrology of Floods

    • 2072 Words
    • 60 Pages

    FLOOD A flood is an overflow of water that submerges land which is usually dry.[1] The European Union (EU) Floods Directive defines a flood as a covering by water of land not normally covered by water.[2] In the sense of "flowing water", the word may also be applied to the inflow of the tide. Flooding may occur as an overflow of water from water bodies, such as a river or lake, in which the water overtops or breaks levees, resulting in some of that water escaping its usual boundaries,[3] or it may…

    • 2072 Words
    • 60 Pages
    Better Essays
  • Satisfactory Essays

    Hydrology FFA Analysis

    • 8422 Words
    • 162 Pages

    Assignment 1 Report Due date: 30 August 2013 Weighting: 25% (250marks) 1. Student Details Student name: Student number: 2. Spreadsheet Details Index – Table of Contents providing an overview of sheets and includes hyperlinks. Original Data – The original set of streamgauge data. 2.1 Annual Series FFA – Scenario 1 Data All tabulated data and formulae for this scenario. 2.1 Annual Series FFA – Scenario 1 Chart 2.1 Annual Series FFA – Scenario 2 Data All tabulated data and formulae for this…

    • 8422 Words
    • 162 Pages
    Satisfactory Essays
  • Powerful Essays

    421-316 Engineering Hydraulics and Hydrology December 11, 2005 Open channel hydraulics John Fenton Department of Civil and Environmental Engineering University of Melbourne, Victoria 3010, Australia Abstract This course of 15 lectures provides an introduction to open channel hydraulics, the generic name for the study of flows in rivers, canals, and sewers, where the distinguishing characteristic is that the surface is unconfined. This means that the location of the surface is also part…

    • 26806 Words
    • 108 Pages
    Powerful Essays
  • Good Essays

    GEOL 3302, Introduction to Hydrology Dr. James W. Ward Guidelines for Research Paper The research paper for this class should be no shorter than 5 pages, not including a cover page, figures or tables, or reference pages. It should be double spaced and properly referenced according to the format found below. There should be at a minimum of 10 references with a maximum of 2 internet references (i.e., the references must come from journal articles and books). The paper should have an introductory…

    • 521 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Petroleum Geology-Overview

    • 2352 Words
    • 8 Pages

    CGE526 – PETROLEUM GEOLOGY Geology Geology is basically the science which is related to the study of the origin of the Earth including the history and its life, the materials that made it up, the structure of the materials and the processes acted upon them. It also deals with the study of the organisms that have inhabited the planet and the structure of a specific region of the Earth involving the rocks, soils, mountains, fossils and other features. The word geology was first known used in…

    • 2352 Words
    • 8 Pages
    Good Essays