...Urban structures and layout affect winds in that friction from urban structures and tall buildings cause winds to lose energy and to be diverted (respectively) ultimately leading in calm conditions and light winds. When moving through an urban area winds must pass through areas of skyscrapers, oddly shaped buildings and brick built structures. Energy is lost when the movement of air encounters friction and hinders its ability to move as fast. Friction van be small scale such as rough surface of brick buildings or large scale such as large tall structures which wind must go around. This results in a reduction of wind speeds in urban areas. Also the more densely built up an area is the less wind has an effect as the air must be diverted around many structures and can in fact be diverted round the area altogether. In terms of layout, parallel built streets, especially long narrow streets with buildings either side can cause wind to be funnelled down these passages creating ‘wind tunnels’ where wind speeds increase greatly, this increases the average wind speed of an urban area. The same effect occurs with narrow passages/gaps between tall buildings, wind is forced through in a wind tunnel creating high speed winds. In urban areas with a less structured layout eg wide streets with building s of moderate height set out in an unparallel layout, wind is less affected whilst speed is still reduced by friction, the occurrence of wind tunnels is less as the conditions are...
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...2010 | Study fig 1 a photo …recent earthquake. Using fig 1 only, comment on the evidence that suggest that an earthquake has recently taken place | Describe how seismic waves and earthquakes can be measured | With reference to two seismic events you have studied from contrasting areas of the world, compare the ways in which earthquakes and their impacts have been managed | | “The hazards presented by volcanic and seismic events have the greatest impact on the world’s poorest people” To what extent do you agree with this view? | Jan 2011 | Study fig 1, a map showing tectonic features in the Philippines. Comment on the degree to which the area of the Philippines might be subject to tectonic hazards | Outline the formation of hot spots and explain their relationship to plate movement | With reference to 2 volcanic events that you have studied from contrasting areas of the world, compare the nature of the volcanic hazard and its impact | | “Volcanic and seismic events are major pieces of evidence towards proving that plate tectonics theory is valid”. Discuss the extent to which you agree with this statement. | June 2011 | Study fig 1 which is an image of the sea bed of the N Atlantic Ocean … Comment on the extent to which the features shown support the theory of plate tectonics. | Describe the characteristics of, and explain the formation of, minor forms of extrusive volcanic activity. | In what ways does volcanic activity vary in relation to the type of plate margin along which...
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...differences in the weather experienced by stations A and B. (7) (b) Explain the characteristic features of the weather associated with a winter anticyclone in the British Isles. (8) (c) Evaluate the concept of the urban heat island. (10) Critically evaluate the possible effects of the phenomenon known as global warming and suggest possible responses to them. (40) Weather, Climate and associated Hazards - Sample Paper 2 - Study Figure 2, a diagram showing the impact of Hurricane Floyd 1999. (a) Using Figure 2, comment on the responses to Hurricane Floyd in September 1999. (7) (b) Explain the causes of tropical revolving storms. (8) (c) With reference to one tropical region that you have studied, describe and explain the characteristic features of the climate of that region. (10) “Urban areas have a significant impact on climatic characteristics.” Discuss this statement. (40) Exam Board Approved Back of Textbook Sample Paper (a) Study figure 2 which shows the global origins and occurrences of tropical storms. Describe and account for the distribution of tropical storms and their travel paths. (7) (b) Explain how urban temperatures can differ from the temperatures of surrounding rural areas, and why...
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...Urban Climates The city is an extraordinary processor of mass and energy and has its own metabolism. A daily input of water, food, and energy of various kinds is matched by an output of sewage, solid waste, air pollutants, energy, and materials that have been transformed in some way. The quantities involved are enormous. Many aspects of this energy use affect the atmosphere of a city, particularly in the production of heat. In winter the heat produced by a city can equal or surpass the amount of heat available from the Sun. All the heat that warms a building eventually transfers to the surrounding air, a process that is quickest where houses are poorly insulated. But an automobile produces enough heat to warm an average house in winter, and if a house were perfectly insulated, one adult could also produce more than enough heat to warm it. Therefore, even without any industrial production of heat, an urban area tends to be warmer than the countryside that surrounds it. The burning of fuel, such as by cars, is not the only source of this increased heat. Two other factors contribute to the higher overall temperature in cities. The first is the heat capacity of the materials that constitute the city, which is typically dominated by concrete and asphalt. During the day, heat from the Sun can be conducted into these materials and stored—to be released at night. But in the countryside materials have a significantly lower heat capacity because a vegetative blanket...
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...STRUCTURE OF THE ATMOSPHERE Troposphere | Closest to the earth and most weather happens here. Temperature drops as you go higher. Wind speeds increase. Most unstable layer. End of the sphere is marked by the tropoPAUSE- an isothermal layer where temp remains constant. | Stratosphere | Steady increase in temperature. Marked by the STRATOPAUSE. Atmosphere is thinner here. | Mesosphere | Temperature decreases to -90. No water vapour or dust to absorb radiation. Very strong winds at 3000 km/hr. MESOPAUSE | Thermosphere | Increase in temperature from the absorption of UV radiation | Greatest amount of energy coming into the atmosphere is from insolation (short wave solar radiation). The amount of this energy from the sun is determined by: *Solar constant- varies slightly & affects longer term climate rather than short term *Distance from the sun- Earth’s orbit around sun can cause variation in distant *Altitude of the sun in the sky- equator receives more energy as rays are head on. At 60 degrees N or S its at an angle so there’s twice the area to heat up & more atmosphere to pass through *Length of the day & night Some radiation is absorbed by ozone, water vapour, co2, ice particles, and dust reduce the amount reaching Earth. & clouds also reflect radiation back! ALBEDO is the ratio between the amount of incoming and reflected radiation. (Usually at 4%) Short wave radiation is converted to heat and heats the surface of earth, while longer...
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............. 11 Chapter 3: Our Earth ......................................................... 15 Chapter 4: Atmosphere and weather ................................. 19 Chapter 5: Our World—the main features of the Earth’s surface ................................................. 25 Chapter 6: Asia—our region of the world .......................... 29 Chapter 7: Pakistan—our homeland.................................. 34 Chapter 8: Pakistan—economic activities ......................... 40 Introduction to the series Explore is a new, up-to-date geography series for secondary classes 6–8. The series covers all the geographical topics and learning competencies from the Pakistan National Curriculum for Geography. Guided by the structure of the Curriculum, from Book 1 to Book 3 the focus gradually switches from local (including the geography of Pakistan) to global (world issues such as forest clearances, population and big city growth, and globalization). However, this is done not by simply following the exact sequence of the written curriculum, but by identifying and developing particular topics and themes in context with the world around us, in order to make the learning process more student-friendly and relevant. Explore consists of three components: the Students’ Books, Workbooks, and the Teachers’ Guides. Together, the three books and their components provide a comprehensive introduction to geography for secondary classes. They meet all the main Aims outlined...
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...effect that surface modifications have on the urban heat island phenomenon and related ozone problem in the metropolitan area of Chicago, IL. The basic hypothesis is that urban, summertime temperatures can be significantly lowered by increasing the vegetative landscape cover and enhancing the solar reflectivity of paved and roofed surfaces within an urban area. It is proposed that in addition to a decrease in temperature, the modification of an urban surface to include more vegetative cover and lighter, lower albedo surfaces will also reduce energy consumption, ozone exceedances, and detrimental environmental and human health effects associated with high levels of ozone. The analysis is divided into three main parts. The first section of this report introduces the causes of ground level ozone and its effects in urban areas. It explains both the chemistry and transport associated with ozone exceedances. The second section is a compilation of the most viable mitigation strategies of urban heat islands: increasing vegetative cover and increasing proportions of light to dark surfaces. The effects, implementation strategies, and specific strengths and weaknesses associated with each approach are described, including a comparison of asphalt and concrete pavements systems using a life cycle analysis approach. The final section provides a case study of the Chicago area. This study entailed an examination of the land use, development of an urban fabric analysis in which total vegetative,...
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...Park Design Guidelines & Data Province of British Columbia Ministry of Environment Lands and Parks A NATURAL LANDSCAPE ARCHITECTURE FOR BRITISH COLUMBIA’S PROVINCIAL PARKS BC PARKS: PARK DESIGN GUIDELINES & DATA Overview Simplicity in design and restraint in construction creates park facilities suited to what attracts visitors in the first place – recreation in the natural park landscape. q The aim of Park Design Guidelines & Data is to help BC Parks staff use their park expertise to produce appropriate facility landscapes. These guidelines identify design criteria and planning processes for BC Parks staff to provide sustainable, appropriate park recreation facilities. They promote facility design that requires the least visible development. q A design approach to visitor facilities is defined that: Recognizing the facilities are an integral part of a park means reducing the impact of use and basing planning and design decisions on local and regional considerations – for the park environment’s long term health. Maintaining natural park landscapes and environments will help ensure the quality of visitor experiences now and in the future. At neighbouring Bromley Rock Provincial Park and Stemwinder Provincial Park, illustrated left, natural site elements create facilities that blend into the natural park landscapes. These examples show the careful expenditure of resources and the thoughtful use of native materials...
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...unit 1 Water cycle The water cycle, also known as the hydrologic cycle, describes the continuous movement of water on, above and below the surface of the Earth. Since the water cycle is truly a "cycle," there is no beginning or end. Water can change states among liquid, vapor, and ice at various places in the water cycle. Although the balance of water on Earth remains fairly constant over time, individual water molecules can come and go. Contents Description The sun, which drives the water cycle, heats water in the oceans. Water evaporates as vapor into the air. Ice and snow can sublimate directly into water vapor. Evapotranspiration is water transpired from plants and evaporated from the soil. Rising air currents take the vapor up into the atmosphere where cooler temperatures cause it to condense into clouds. Air currents move clouds around the globe, cloud particles collide, grow, and fall out of the sky as precipitation. Some precipitation falls as snow and can accumulate as ice caps and glaciers, which can store frozen water for thousands of years. Snowpacks can thaw and melt, and the melted water flows over land as snowmelt. Most precipitation falls back into the oceans or onto land, where the precipitation flows over the ground as surface runoff. A portion of runoff enters rivers in valleys in the landscape, with streamflow moving water towards the oceans. Runoff and groundwater are stored as freshwater in lakes. Not all runoff flows into rivers. Much of it soaks...
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...Guide to Meteorological Instruments and Methods of Observation WMO-No. 8 Guide to Meteorological Instruments and Methods of Observation WMO-No. 8 Seventh edition 2008 WMO-No. 8 © World Meteorological Organization, 2008 The right of publication in print, electronic and any other form and in any language is reserved by WMO. Short extracts from WMO publications may be reproduced without authorization, provided that the complete source is clearly indicated. Editorial correspondence and requests to publish, reproduce or translate this publication in part or in whole should be addressed to: Chairperson, Publications Board World Meteorological Organization (WMO) 7 bis, avenue de la Paix P.O. Box No. 2300 CH-1211 Geneva 2, Switzerland ISBN 978-92-63-10008-5 NOTE The designations employed in WMO publications and the presentation of material in this publication do not imply the expression of any opinion whatsoever on the part of the Secretariat of WMO concerning the legal status of any country, territory, city or area, or of its authorities, or concerning the delimitation of its frontiers or boundaries. Opinions expressed in WMO publications are those of the authors and do not necessarily reflect those of WMO. The mention of specific companies or products does not imply that they are endorsed or recommended by WMO in preference to others of a similar nature which are not mentioned or advertised. Tel.: +41 (0) 22 730 84 03 Fax: +41 (0) 22 730 80 40 E-mail: publications@wmo...
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...HUMAN BEHAVIOUR IN PUBLIC SPACES By VENETIN AGHOSTIN-SANGAR THESIS Submitted in partial fulfilment of the requirements for the degree of Bachelor of Planning within the Faculty of the Built Environment at the University of New South Wales, 2007 Sydney, NSW FACULTY OF THE BUILT ENVIRONMENT BACHELOR OF PLANNING Declaration Relating to Disposition of Undergraduate Thesis This is to certify that I, Venetin Aghostin-Sangar, being a student for the degree of Bachelor of Planning, am aware that the University reserves the right to retain at its own discretion the copy of my thesis submitted for examination. I consent to the thesis being placed in the Faculty Library, to be consulted there and to part(s) of this thesis being quoted in manuscripts or typescripts for the purpose of scholarship or research, provided my authorship is acknowledged. In the light of the Copyright Act (1968) I declare that I wish to grant the University further permission for the following actions provided my authorship is acknowledged: • Copy or allow others to copy in any medium the whole of the thesis for the purpose of scholarship or research; or • Publish or allow others to publish, the whole of the thesis. Signature: ……………………………………………………………………… Witness: ……………………………………………………………………… Date: 23rd February 2007 ii Acknowledgements I would like to express my gratitude to all those who dedicated their valuable time to assist in furthering the ideas that form this thesis. A sincere...
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...Traffic Engineering Design This page intentionally left blank Traffic Engineering Design Principles and Practice Second edition Mike Slinn MVA Limited, MVA House, Victoria Way, Woking GU21 1DD, UK Paul Matthews MVA Limited, Third Floor, One Berners Street, London W1T 3LA, UK Peter Guest 8 The Grove, Farnborough, Hampshire GU14 6QR, UK AMSTERDAM • BOSTON • HEIDELBERG • LONDON • NEW YORK • OXFORD PARIS • SAN DIEGO • SAN FRANCISCO • SINGAPORE • SYDNEY • TOKYO Elsevier Butterworth-Heinemann Linacre House, Jordan Hill, Oxford OX2 8DP 30 Corporate Drive, Burlington, MA 01803 First published by Arnold, 1998 Reprinted 2003 Second edition 2005 Copyright © 2005, Elsevier Ltd. All rights reserved. No part of this publication may be reproduced in any material form (including photocopying or storing in any medium by electronic means and whether or not transiently or incidentally to some other use of this publication) without the written permission of the copyright holder except in accordance with the provisions of the Copyright, Designs and Patents Act 1988 or under the terms of a license issued by the Copyright Licensing Agency Ltd, 90 Tottenham Court Road, London, England W1T 4LP. Applications for the copyright holder’s written permission to reproduce any part of this publication should be addressed to the publisher. Permissions may be sought directly from Elsevier’s Science and Technology Rights Department in Oxford, UK: phone: (ϩ44) (0) 1865 843830; fax: (ϩ44) (0) 1865 853333;...
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...A NPSTC Public Safety Communications Report The National Public Safety Telecommunications Council is a federation of organizations whose mission is to improve public safety communications and interoperability through collaborative leadership. Defining Public Safety Grade Systems and Facilities Final Report 5/22/2014 Support to NPSTC provided by the U.S. Department of Homeland Security's Science and Technology Directorate, Office for Interoperability and Compatibility (OIC), and the National Protection and Programs Directorate, Office of Emergency Communications (OEC). Points of view or opinions expressed are those of the originators and do not necessarily represent the official position or policies of the U.S. Department of Homeland Security. American Association of State Highway and Transportation Officials | American Radio Relay League | Association of Fish and Wildlife Agencies | Association of Public Safety Communications Officials | Forestry Conservation Communications Association | International Association of Chiefs of Police | International Association of Emergency Managers | International Association of Fire Chiefs | International Municipal Signal Association | National Association of State Chief Information Officers | National Association of State Emergency Medical Services Officials | National Association of State Foresters | National Association of State Technology Directors | National Emergency Number Association | National Sheriffs’ Association 8191 Southpark...
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...mproving Sanitation in Coastal Communities with Special Reference to Puerto Princesa, Palawan Province, Philippines Table of Contents Acknowledgments (see below) Abstract (see below) Resumé (see below) Chapter 1 Introduction 1.1 Thesis Rationale 1.2 Goals and Objectives of the Thesis 1.3 Research Methodology 1.4 Scope and Limitations of the Study 1.5 Organization of the Thesis Chapter 2 General Scenario of Sanitation Problems in Coastal and Waterfront Communities--A Literature Review 2.1 Reasons for Settling on Coastal, Waterfront and Low-lying Areas 2.2 Sanitation Problems 2.3 Health and Environmental Conditions Chapter 3 Low-Cost Sanitation Systems used in Coastal and Waterfront Communities--A Literature Review 3.1 Available Low-Cost Sanitation Technologies 3.2 Sanitation Systems Used in Coastal and Waterfront Communities Chapter 4 The Case Study 4.1 Community Background 4.2 * Chapter 5 Results of Field Survey-- Analysis of Existing Sanitation in the Coastal Communities of Puerto Princesa 5.1 Basis of Analysis 5.2 Existing Environmental Sanitation 5.3 Health Condition and Observed Hygienic Practices related to Sanitation and Water Supply Chapter 6 Essential Factors for the Provision of Sanitation Systems in Coastal Communities 6.1 Considerations in the Provision of Sanitation Systems 6.2 Sanitation Systems Options Chapter 7 Conclusions and Recommendations 7.1 Summary of Existing sanitation Problems 7.2 Key Considerations in the Provision of...
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...BRE Building Elements Foundations, basements and external works Performance, diagnosis, maintenance, repair and the avoidance of defects H W Harrison, ISO, Dip Arch, RIBA P M Trotman BRE Garston Watford WD25 9XX Prices for all available BRE publications can be obtained from: CRC Ltd 151 Rosebery Avenue London, EC1R 4GB Tel: 020 7505 6622 Fax: 020 7505 6606 email: crc@construct.emap.co.uk BR 440 ISBN 1 86081 540 5 © Copyright BRE 2002 First published 2002 BRE is committed to providing impartial and authoritative information on all aspects of the built environment for clients, designers, contractors, engineers, manufacturers, occupants, etc. We make every effort to ensure the accuracy and quality of information and guidance when it is first published. However, we can take no responsibility for the subsequent use of this information, nor for any errors or omissions it may contain. Published by Construction Research Communications Ltd by permission of Building Research Establishment Ltd Requests to copy any part of this publication should be made to: CRC Ltd Building Research Establishment Bucknalls Lane Watford, WD25 9XX BRE material is also published quarterly on CD Each CD contains BRE material published in the current year, including reports, specialist reports, and the Professional Development publications: Digests, Good Building Guides, Good Repair Guides and Information Papers. The CD collection gives you the opportunity to build a comprehensive library...
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