What is GIS? Introduction to data. Introduction to data modeling
|
|
- Sherman Pitts
- 5 years ago
- Views:
Transcription
1
2 What is GIS? Introduction to data Introduction to data modeling 2
3 A GIS is similar, layering mapped information in a computer to help us view our world as a system
4 A Geographic Information System is a collection of tools to build, maintain, and use electronic maps and associated databases
5 It locates: Physical infrastructure, like water and sewer pipes
6 It locates: Areas, like land use
7 It locates: Incidents, like crime statistics
8 It locates: Quantities or densities, like disease ates
9 It identifies:
10 More than just maps In a GIS, the maps have tables of data behind them. This means when you combine different maps you combine data to get the information you need.
11 It allows questions to be asked from the map side or from the database side Parcel ID A Owner Jane Doe Address 110 E Oak City Anywhere State Indiana Zip Property $72,000 Value Name Jane Doe Phone School Dist Center Fire Dist No. 12 Police Dist Centertown Zip
12 It allows questions to be framed geographically Outside From Not Adjacent Right Left Inside To Adjacent
13 A set of tools for collecting, storing, retrieving at will, transforming, and displaying spatial data from the real world for a particular set of purposes (by Burrough, 1986). GIS covers three main components: GIS is a computer system (hardware, software, procedures or techniques). GIS uses spatially referenced or geographical data. GIS carries out various management and analysis tasks on these data. 13
14 In short, GIS can be used to add value to spatial data. By allowing data to be organized and viewed efficiently, by integrating them with other data, by analysis and by the creation of new data that can be operated on in turn, GIS creates useful information to help decision making. A GIS can be described as a form of spatial decision support system. 14
15 Socio-economic/government: health; local government; transportation planning; urban management; Defence agencies: target site identification; tactical support planning; Commerce and business: Market share analysis; insurance; retail site location Utilities: Network management; service provision; telecommunications; emergency repairs Environmental management: landfill site selection; pollution monitoring; resource management 15
16 GIS is seen as a tool to bring together data and information. What will be the long-term consequences of continuing recreational activity for the landscape? What will be the damage from acid rain if a particular plant continues to operate? Where is the best location for the reintroduction of certain bird? Where should landscape conservation zones be established? 16
17 What is GIS Data Data Modeling 17
18 Data are observations we make from monitoring the real world. GIS is used to help build models where it would be impossible to synthesize the data by any other means. A GIS populated with data and ideas about how data interact is a spatial model. Temporal data is used to describe data organized and analyzed according to time, Thematic data used for data organized and analyzed by theme, Spatial data for data organized and analyzed by location. 18
19 GIS professionals were asked to find appropriate sources of spatial data that could be used to represent some criteria. A range of sources was identified including: Paper maps (for soil type and geology) Contour maps (for topography) Ecological field maps (for drainage conditions) Remote sensing (for land use) Distributed sensor network (ecology) 19
20 Census and survey data: Collections of related information. Aerial photographs: It was the first method of remote sensing. It is capturing of images from a position above the Earth. A snapshot of the Earth at a particular instant in time. 20
21 Satellite images are collected by sensors on board a satellite and then relayed to earth as a series of electronic signals. Some satellites are stationary (geostationary), for example Meteosat, which produce images over Africa along the Greenwich meridian. Other orbit the earth to provide full coverage over some days for example: Landsat and SPOT. Sensors on board a satellite detect radiation from the Earth. After processing, the images can be used to detect features not readily apparent to naked eye, such as slight change in moisture content across a field, sediment dispersal in a lake, heat escaping from roof in urban areas. Scanned images are stored as a collection of pixels, which have a value representing the amount of radiation received by the sensor. 21
22 Establish the purpose the map is to serve; Define the scale at which the map is to produced; Select the features from the real world; Choose a method for the representation of these features (point, line and areas); Generalize these features for representation in 2D; Adopt a map projection for placing these features onto a flat piece of paper; Adopt a spatial referencing system to locate these features relative to each other; Annotate the map with keys, legends and text for user; 22
23 All GIS software handles spatial data. For example, spatial data about Happy Valley s weather stations include: Latitude and longitude as a geographical reference. Connection details such as which service roads, lifts and ski trails would allow meteorologist access to the weather station. Non-spatial data such as details of the snowfall, temperature, wind speed and direction. The functions of GIS: data input, storage, management, transformation, analysis and output. 23
24 Point, line and areas 24
25 Topology in GIS describes the geometric characteristics of objects that do not change under transformations such as stretching or bending and are independent of any coordinate system. It includes three elements: Adjacency: share a common boundary Containment: extension of adjacency and describe area features which may not wholly contained within another area feature such as inland within a lake Connectivity: linkages between line features, road. 25
26 Generalization Projection Referencing 26
27 Selection: First select the features in the map; Simplification: Next make a decision to simplify the features; Displacement: If the features located side by side or lie on top of one another, displace them by a small degree so they are all visible on the map. Smoothing and enhancement: If source data are collected from a series of sampling points, a smoothing technique may be used to extract shape from the features. 27
28 28
29 Principle for map projections: Imagine the beach ball has a hole at the north pole large enough for a light bulb to be inserted, it is transformed into a light fitting. When the light is switched on, an image of the surface is projected onto the walls of the room. In a circular room, assuming our globe is hanging from the north pole, there will be a continuous picture of the earth. The equator represents line of true scale (not distorted). In a square room with flat walls, only a part of earth s surface will be visible on any one wall. If the room is shaped like a tepee, the line of true is no longer the equators, as in the circular room, but some line of latitude nearer the north pole. The circular room is equivalent to the family of cylindrical projections. 29
30 Cylindrical Azimuthal Conic 30
31 latitude and longitude of Moscow calculating the latitude calculating the longitude 31
32 What is GIS Spatial data Spatial data modeling 32
33 33
34 What particular features are found? What geographical patterns exits? Where have changes occurred over a given time period? Where do certain conditions apply? What will the spatial implications be if an organization takes certain action? 34
35 35
36 Raster vs vector Network Hierarchical 36
37 Raster DTM (digital terrain modelling) is simply a grid of height value in which each cell contains a single value represented the height of the terrain in that cell. Problems occur with raster DTMs where the terrain is varied. Vector DTM is the triangulated irregular network (TIN). In vector GIS, a TIN is used to create a DTM from either regular or irregular height data. 37
38 38
39 Entity model Cell values File structure 39
40 Run length encoding: reduce data volume on a row by row basis. Block coding: extend the run length encoding idea to two dimensions by using a series of square blocks to store data. Chain coding: define the boundary of the entity. Quadtrees. 40
41 The quadtree Run length encoding Block coding Chain coding 41
42 42
43 A network is a set of interconnected linear features through which materials, goods and people are transported or along with communication of information is achieved. Network models in GIS are abstract representation of the components and characteristics of their real-world counterparts 43
44 44
45 What is GIS What three main components GIS has? What types of GIS data exist What is topology in GIS (define 3 types) What types of operations on GIS exist (list 3 types) What three types of projection exists Compare raster and vector approach to modeling 45
GIS = Geographic Information Systems;
What is GIS GIS = Geographic Information Systems; What Information are we talking about? Information about anything that has a place (e.g. locations of features, address of people) on Earth s surface,
More informationIntroduction-Overview. Why use a GIS? What can a GIS do? Spatial (coordinate) data model Relational (tabular) data model
Introduction-Overview Why use a GIS? What can a GIS do? How does a GIS work? GIS definitions Spatial (coordinate) data model Relational (tabular) data model intro_gis.ppt 1 Why use a GIS? An extension
More informationAn Introduction to Geographic Information System
An Introduction to Geographic Information System PROF. Dr. Yuji MURAYAMA Khun Kyaw Aung Hein 1 July 21,2010 GIS: A Formal Definition A system for capturing, storing, checking, Integrating, manipulating,
More informationIntroduction to GIS. Dr. M.S. Ganesh Prasad
Introduction to GIS Dr. M.S. Ganesh Prasad Department of Civil Engineering The National Institute of Engineering, MYSORE ganeshprasad.nie@gmail.com 9449153758 Geographic Information System (GIS) Information
More informationTechniques for Science Teachers: Using GIS in Science Classrooms.
Techniques for Science Teachers: Using GIS in Science Classrooms. After ESRI, 2008 GIS A Geographic Information System A collection of computer hardware, software, and geographic data used together for
More informationIntroduction to GIS I
Introduction to GIS Introduction How to answer geographical questions such as follows: What is the population of a particular city? What are the characteristics of the soils in a particular land parcel?
More informationREVIEW MAPWORK EXAM QUESTIONS 31 JULY 2014
REVIEW MAPWORK EXAM QUESTIONS 31 JULY 2014 Lesson Description In this lesson we: Focus on key concepts and exam questions relating to GIS. Question 1 Test Yourself The most important component of a GIS
More informationCS 350 A Computing Perspective on GIS
CS 350 A Computing Perspective on GIS What is GIS? Definitions A powerful set of tools for collecting, storing, retrieving at will, transforming and displaying spatial data from the real world (Burrough,
More informationENVIRONMENTAL MONITORING Vol. II - Applications of Geographic Information Systems - Ondieki C.M. and Murimi S.K.
APPLICATIONS OF GEOGRAPHIC INFORMATION SYSTEMS Ondieki C.M. and Murimi S.K. Kenyatta University, Kenya Keywords: attribute, database, geo-coding, modeling, overlay, raster, spatial analysis, vector Contents
More informationGeographic Information Systems (GIS) in Environmental Studies ENVS Winter 2003 Session III
Geographic Information Systems (GIS) in Environmental Studies ENVS 6189 3.0 Winter 2003 Session III John Sorrell York University sorrell@yorku.ca Session Purpose: To discuss the various concepts of space,
More informationGEOGRAPHIC INFORMATION SYSTEMS
GEOGRAPHIC INFORMATION SYSTEMS 4-H Round-Up Community Transitions Workshop Daniel Hanselka June 14, 2011 Goals of the Workshop Answer the question: What is GIS? Uses of GIS. Some of the Common Terminology
More informationPopular Mechanics, 1954
Introduction to GIS Popular Mechanics, 1954 1986 $2,599 1 MB of RAM 2017, $750, 128 GB memory, 2 GB of RAM Computing power has increased exponentially over the past 30 years, Allowing the existence of
More informationGIS (GEOGRAPHIC INFORMATION SYSTEMS)
GIS (GEOGRAPHIC INFORMATION SYSTEMS) 1 1. DEFINITION SYSTEM Any organised assembly of resources and procedures united and regulated by interaction or interdependence to complete a set of specific functions.
More informationINTRODUCTION TO GEOGRAPHIC INFORMATION SYSTEM By Reshma H. Patil
INTRODUCTION TO GEOGRAPHIC INFORMATION SYSTEM By Reshma H. Patil ABSTRACT:- The geographical information system (GIS) is Computer system for capturing, storing, querying analyzing, and displaying geospatial
More informationUnit 1, Lesson 3 What Tools and Technologies Do Geographers Use?
Unit 1, Lesson 3 What Tools and Technologies Do Geographers Use? Geographers use a variety of tools and technologies in investigating geographic questions. Maps and globes both represent the earth, but
More informationUnit 1, Lesson 2. What is geographic inquiry?
What is geographic inquiry? Unit 1, Lesson 2 Understanding the way in which social scientists investigate problems will help you conduct your own investigations about problems or issues facing your community
More informationGeorelational Vector Data Model
Georelational Vector Data Model Contents Georelational Data Model Representation of Simple Features Topology Non-topological Vector Data Data Models for Composite Features Geo-relational Looking at a paper
More informationENGRG Introduction to GIS
ENGRG 59910 Introduction to GIS Michael Piasecki March 17, 2014 Lecture 08: Terrain Analysis Outline: Terrain Analysis Earth Surface Representation Contour TIN Mass Points Digital Elevation Models Slope
More informationChapter 02 Maps. Multiple Choice Questions
Chapter 02 Maps Multiple Choice Questions 1. Every projection has some degree of distortion because A. a curved surface cannot be represented on a flat surface without distortion. B. parallels and meridians
More informationApplications: Introduction Task 1: Introduction to ArcCatalog Task 2: Introduction to ArcMap Challenge Question References
CHAPTER 1 INTRODUCTION 1.1 GIS? 1.1.1 Components of a GIS 1.1.2 A Brief History of GIS 1.1.3 GIS Software Products Box 1.1 A List of GIS Software Producers and Their Main Products 1.2 GIS Applications
More informationChapter 5. GIS The Global Information System
Chapter 5 GIS The Global Information System What is GIS? We have just discussed GPS a simple three letter acronym for a fairly sophisticated technique to locate a persons or objects position on the Earth
More informationIntroduction to GIS. Phil Guertin School of Natural Resources and the Environment GeoSpatial Technologies
Introduction to GIS Phil Guertin School of Natural Resources and the Environment dguertin@cals.arizona.edu Mapping GeoSpatial Technologies Traditional Survey Global Positioning Systems (GPS) Remote Sensing
More informationENGRG Introduction to GIS
ENGRG 59910 Introduction to GIS Michael Piasecki November 17, 2017 Lecture 11: Terrain Analysis Outline: Terrain Analysis Earth Surface Representation Contour TIN Mass Points Digital Elevation Models Slope
More informationGIS Data Structure: Raster vs. Vector RS & GIS XXIII
Subject Paper No and Title Module No and Title Module Tag Geology Remote Sensing and GIS GIS Data Structure: Raster vs. Vector RS & GIS XXIII Principal Investigator Co-Principal Investigator Co-Principal
More informationGEO-DATA INPUT AND CONVERSION. Christos G. Karydas,, Dr. Lab of Remote Sensing and GIS Director: Prof. N. Silleos
Christos G. Karydas,, Dr. xkarydas@agro.auth.gr http://users.auth.gr/xkarydas Lab of Remote Sensing and GIS Director: Prof. N. Silleos School of Agriculture Aristotle University of Thessaloniki, GR 1 0.
More informationIntroduction to Geographic Information Systems Dr. Arun K Saraf Department of Earth Sciences Indian Institute of Technology, Roorkee
Introduction to Geographic Information Systems Dr. Arun K Saraf Department of Earth Sciences Indian Institute of Technology, Roorkee Lecture 01 What is Geographic Information Systems? I welcome to this
More informationUnderstanding Geographic Information System GIS
Understanding Geographic Information System GIS What do we know about GIS? G eographic I nformation Maps Data S ystem Computerized What do we know about maps? Types of Maps (Familiar Examples) Street Maps
More informationENV208/ENV508 Applied GIS. Week 1: What is GIS?
ENV208/ENV508 Applied GIS Week 1: What is GIS? 1 WHAT IS GIS? A GIS integrates hardware, software, and data for capturing, managing, analyzing, and displaying all forms of geographically referenced information.
More informationWhat are the five components of a GIS? A typically GIS consists of five elements: - Hardware, Software, Data, People and Procedures (Work Flows)
LECTURE 1 - INTRODUCTION TO GIS Section I - GIS versus GPS What is a geographic information system (GIS)? GIS can be defined as a computerized application that combines an interactive map with a database
More informationGIS Geographical Information Systems. GIS Management
GIS Geographical Information Systems GIS Management Difficulties on establishing a GIS Funding GIS Determining Project Standards Data Gathering Map Development Recruiting GIS Professionals Educating Staff
More informationA Basic Introduction to Geographic Information Systems (GIS) ~~~~~~~~~~
A Basic Introduction to Geographic Information Systems (GIS) ~~~~~~~~~~ Rev. Ronald J. Wasowski, C.S.C. Associate Professor of Environmental Science University of Portland Portland, Oregon 3 September
More informationIntroduction to Geographic Information Systems
Introduction to Geographic Information Systems Lynn_Carlson@brown.edu 401-863-9917 The Environmental And Remote TecHnologies Lab MacMillan Hall, Room 105 http://www.brown.edu/research/earthlab/ Outline
More informationIllustrator: Vector base Each line/point store some sort of information Mapping Representation of the world
Illustrator: Vector base Each line/point store some sort of information Mapping Representation of the world Photoshop Raster base Images can be overlaid Pixel vector data model: [data models] A representation
More informationUSING GIS CARTOGRAPHIC MODELING TO ANALYSIS SPATIAL DISTRIBUTION OF LANDSLIDE SENSITIVE AREAS IN YANGMINGSHAN NATIONAL PARK, TAIWAN
CO-145 USING GIS CARTOGRAPHIC MODELING TO ANALYSIS SPATIAL DISTRIBUTION OF LANDSLIDE SENSITIVE AREAS IN YANGMINGSHAN NATIONAL PARK, TAIWAN DING Y.C. Chinese Culture University., TAIPEI, TAIWAN, PROVINCE
More informationDeveloping Spatial Awareness :-
Developing Spatial Awareness :- We begin to exercise our geographic skill by examining he types of objects and features we encounter. Four different spatial objects in the real world: Point, Line, Areas
More informationIntroducing GIS analysis
1 Introducing GIS analysis GIS analysis lets you see patterns and relationships in your geographic data. The results of your analysis will give you insight into a place, help you focus your actions, or
More informationGEOGRAPHIC INFORMATION SYSTEMS (GIS)
AN INTRODUCTION TO GEOGRAPHIC INFORMATION SYSTEMS (GIS) Joana Magos Brehm 1, Ali Shehadeh 2 1 Botanical Garden, National Museum of Natural History, University of Lisbon (Portugal) 2 Genetic Resources Unit,
More informationGIS Workshop Data Collection Techniques
GIS Workshop Data Collection Techniques NOFNEC Conference 2016 Presented by: Matawa First Nations Management Jennifer Duncan and Charlene Wagenaar, Geomatics Technicians, Four Rivers Department QA #: FRG
More informationDATA SOURCES AND INPUT IN GIS. By Prof. A. Balasubramanian Centre for Advanced Studies in Earth Science, University of Mysore, Mysore
DATA SOURCES AND INPUT IN GIS By Prof. A. Balasubramanian Centre for Advanced Studies in Earth Science, University of Mysore, Mysore 1 1. GIS stands for 'Geographic Information System'. It is a computer-based
More informationa system for input, storage, manipulation, and output of geographic information. GIS combines software with hardware,
Introduction to GIS Dr. Pranjit Kr. Sarma Assistant Professor Department of Geography Mangaldi College Mobile: +91 94357 04398 What is a GIS a system for input, storage, manipulation, and output of geographic
More informationDr. ABOLGHASEM AKBARI Faculty of Civil Engineering & Earth Resources, University Malaysia Pahang (UMP)
Workshop on : Dr. ABOLGHASEM AKBARI Faculty of Civil Engineering & Earth Resources, University Malaysia Pahang (UMP) 14-15 April 2016 Venue: Tehran, Iran GIS definitions GIS: A simplified view of the real
More informationGeographers Perspectives on the World
What is Geography? Geography is not just about city and country names Geography is not just about population and growth Geography is not just about rivers and mountains Geography is a broad field that
More informationSRJC Applied Technology 54A Introduction to GIS
SRJC Applied Technology 54A Introduction to GIS Overview Lecture of Geographic Information Systems Fall 2004 Santa Rosa Junior College Presented By: Tim Pudoff, GIS Coordinator, County of Sonoma, Information
More informationThe World of Geography Pre-Test/Study Guide Chapter 1 Test
Read each statement or question. On the lines below write the letter of the best answer. 1. Geographers look at the Earth 5. What are the two specific A. by studying cities first. measurements of Earth
More informationDisplay data in a map-like format so that geographic patterns and interrelationships are visible
Vilmaliz Rodríguez Guzmán M.S. Student, Department of Geology University of Puerto Rico at Mayagüez Remote Sensing and Geographic Information Systems (GIS) Reference: James B. Campbell. Introduction to
More informationGIS & Spatial Analysis in MCH
GIS & Spatial Analysis in MCH Russell S. Kirby, University of Alabama at Birmingham rkirby@uab.edu, office 205-934-2985 Dianne Enright, North Carolina State Center for Health Statistics dianne.enright@ncmail.net
More informationProjections & GIS Data Collection: An Overview
Projections & GIS Data Collection: An Overview Projections Primary data capture Secondary data capture Data transfer Capturing attribute data Managing a data capture project Geodesy Basics for Geospatial
More informationAbstract. Keywords: Geographic information systems and digital data model. 1. Introduction
Abstract GISMO - A Geographical Information System for a Municipality Office Ramzi A. Haraty and Youssef O. Kaddoura Lebanese American University P.O. Box 13-5053 Chouran Beirut, Lebanon 1102 2801 Email:
More informationApplied Cartography and Introduction to GIS GEOG 2017 EL. Lecture-1 Chapters 1 and 2
Applied Cartography and Introduction to GIS GEOG 2017 EL Lecture-1 Chapters 1 and 2 What is GIS? A Geographic Information System (GIS) is a computer system for capturing, storing, querying, analyzing and
More informationGeospatial data and analysis fundamentals applied to renewable energies potential assessment
Geospatial data and analysis fundamentals applied to renewable energies potential assessment Network analysis: Do we go to Perugia by car? Guideline Introduction renewable energy and Geospatial Technologies
More informationAileen Buckley, Ph.D. and Charlie Frye
An Information Model for Maps: Towards Production from GIS Databases Aileen Buckley, Ph.D. and Charlie Frye Researchers, ESRI GIS vs. cart GIS Outline of the presentation Introduction Differences between
More informationGIS and Remote Sensing
Spring School Land use and the vulnerability of socio-ecosystems to climate change: remote sensing and modelling techniques GIS and Remote Sensing Katerina Tzavella Project Researcher PhD candidate Technology
More informationMcHenry County Property Search Sources of Information
Disclaimer: The information in this system may contain inaccuracies or typographical errors. The information in this system is a digital representation of information derived from original documents; as
More information2 nd Semester. Core Courses. C 2.1 City and Metropolitan Planning. Module 1: Urban Structure and Growth Implications
2 nd Semester Core Courses C 2.1 City and Metropolitan Planning Module 1: Urban Structure and Growth Implications Growth of cities; cities as engine of growth; urban sprawl; land value, economic attributes
More informationGeospatial Technologies
An Overview of Prepared by: John McGee Jennifer McKee With support from: NSF DUE-0903270 in partnership with: Geospatial Technician Education Through Virginia s Community Colleges (GTEVCC) What is Geospatial?
More informationUnit 1 The Basics of Geography. Chapter 1 The Five Themes of Geography Page 5
Unit 1 The Basics of Geography Chapter 1 The Five Themes of Geography Page 5 Geography comes from the Greek word geographia, which means to describe the earth. Geography is the study of the distribution
More informationGIS Geographical Information Systems
Chapter Two GIS Geographical Information Systems Chapter Two GIS Geographical Information Systems Chapter Two GIS (Geographical Information Systems) 2.1 Introduction In most cases of our day life, information
More information13.2 USING VIRTUAL GLOBES TO IMPROVE SITUATIONAL AWARENESS IN THE NATIONAL WEATHER SERVICE
13.2 USING VIRTUAL GLOBES TO IMPROVE SITUATIONAL AWARENESS IN THE NATIONAL WEATHER SERVICE Andy Foster* National Weather Service Springfield, Missouri* Keith Stellman National Weather Service Shreveport,
More informationKey Issue #1. How do geographers describe where things are? 2014 Pearson Education, Inc.
Key Issue #1 How do geographers describe where things are? Learning Outcomes 1.1.1: Explain differences between early maps and contemporary maps. 1.1.2: Describe the role of map scale and projections and
More informationSampling The World. presented by: Tim Haithcoat University of Missouri Columbia
Sampling The World presented by: Tim Haithcoat University of Missouri Columbia Compiled with materials from: Charles Parson, Bemidji State University and Timothy Nyerges, University of Washington Introduction
More informationSyllabus Reminders. Geographic Information Systems. Components of GIS. Lecture 1 Outline. Lecture 1 Introduction to Geographic Information Systems
Syllabus Reminders Geographic Information s Lecture Introduction to Geographic Information s. Class Info: www.saigis.com/class/ 2. Office T / TH (8:00-9:30 a.m.) and (2:30 3:30pm) or Appt 3. Email: burgerpr@unk.edu
More informationApplied Cartography and Introduction to GIS GEOG 2017 EL. Lecture-2 Chapters 3 and 4
Applied Cartography and Introduction to GIS GEOG 2017 EL Lecture-2 Chapters 3 and 4 Vector Data Modeling To prepare spatial data for computer processing: Use x,y coordinates to represent spatial features
More informationINTRODUCTION TO GIS. Dr. Ori Gudes
INTRODUCTION TO GIS Dr. Ori Gudes Outline of the Presentation What is GIS? What s the rational for using GIS, and how GIS can be used to solve problems? Explore a GIS map and get information about map
More informationGeography involves the study of places: their locations, their characteristics, and how humans use and move around them.
Physical Geography Looking at the Earth Geography involves the study of places: their locations, their characteristics, and how humans use and move around them. NEXT Physical Geography Looking at the Earth
More informationApplications of GIS in Electrical Power System
Applications of GIS in Electrical Power System Abdulrahman M. AL-Sakkaf 201102310 CRP 514 May 2013 Dr. Baqer M. AL-Ramadan Abstract GIS has been widely used in various areas and disciplines. This paper
More informationIntroduction to GIS - 2
Introduction to GIS - 2 Outline Using GIS Representation of spatial objects in GIS Prof. D. Nagesh Kumar Department of Civil Engineering Indian Institute of Science Bangalore 560 012, India http://www.civil.iisc.ernet.in/~nagesh
More informationOverview of GIS. A typical GIS can be understood by the help of various definitions given below:-
Overview of GIS Introduction Geographic Information System (GIS) is a computer based information system used to digitally represent and analyse the geographic features present on the Earth' surface and
More informationQuality and Coverage of Data Sources
Quality and Coverage of Data Sources Objectives Selecting an appropriate source for each item of information to be stored in the GIS database is very important for GIS Data Capture. Selection of quality
More informationPreparation of Database for Urban Development
Preparation of Database for Urban Development By PunyaP OLI, 1. Chairman, ERMC (P) Ltd., Kathmandu, Nepal. Email: punyaoli@ermcnepal.com 2. Coordinator, Himalayan College of Geomatic Engineering and Land
More informationGeography 38/42:376 GIS II. Topic 1: Spatial Data Representation and an Introduction to Geodatabases. The Nature of Geographic Data
Geography 38/42:376 GIS II Topic 1: Spatial Data Representation and an Introduction to Geodatabases Chapters 3 & 4: Chang (Chapter 4: DeMers) The Nature of Geographic Data Features or phenomena occur as
More informationIntroduction to Geoinformatics I
Introduction to Geoinformatics I MAP CONCEPT Definition: 1) A map is a visual representation of an area a symbolic depiction highlighting relationships between elements of that space such as objects, regions,
More informationCadcorp Introductory Paper I
Cadcorp Introductory Paper I An introduction to Geographic Information and Geographic Information Systems Keywords: computer, data, digital, geographic information systems (GIS), geographic information
More information8.9 Geographical Information Systems Advantages of GIS
8.9 Geographical Information Systems A Geographic Information System (GIS) is a computer-based system that is used in input, storage, analysis manipulation, retrieval, and output, of spatial data. These
More informationFri. Jan. 26, Demonstration of QGIS with GPS tracks. Types of data, simple vector (shapefile) formats
Fri. Jan. 26, 2018 Demonstration of QGIS with GPS tracks Types of data, simple vector (shapefile) formats Map projections, Coordinate Reference Systems Demonstration of QGIS with geologic map 1 Raster
More informationGEOREFERENCING, PROJECTIONS Part I. PRESENTING DATA Part II
Week 7 GEOREFERENCING, PROJECTIONS Part I PRESENTING DATA Part II topics of the week Georeferencing Coordinate systems Map Projections ArcMap and Projections Geo-referencing Geo-referencing is the process
More informationUSING 3D GIS TO ASSESS ENVIRONMENTAL FLOOD HAZARDS IN MINA
King Fahd University of Petroleum & Minerals College of Environmental Design Geographical Information system USING 3D GIS TO ASSESS ENVIRONMENTAL FLOOD HAZARDS IN MINA Prepared by : Ali AL-Zahrani OUTLINE
More informationChapter 1 Overview of Maps
Chapter 1 Overview of Maps In this chapter you will learn about: Key points when working with maps General types of maps Incident specific maps Map legend and symbols Map sources A map is a navigational
More informationINSTITUTE OF AERONAUTICAL ENGINEERING (Autonomous) Dundigal, Hyderabad
INSTITUTE OF AERONAUTICAL ENGINEERING (Autonomous) Dundigal, Hyderabad -00 0 CIVIL ENGINEERING TUTORIAL QUESTION BANK Course Name : Remote Sensing and GIS Course Code : A00 Class : IV B. Tech I Semester
More informationThe Elements of GIS. Organizing Data and Information. The GIS Database. MAP and ATRIBUTE INFORMATION
GIS s Roots in Cartography Getting Started With GIS Chapter 2 Dursun Z. Seker MAP and ATRIBUTE INFORMATION Data (numbers and text) store as files refer to them collectively as a database gather inform.
More informationDEPARTMENT OF GEOGRAPHY B.A. PROGRAMME COURSE DESCRIPTION
DEPARTMENT OF GEOGRAPHY B.A. PROGRAMME COURSE DESCRIPTION (3 Cr. Hrs) (2340100) Geography of Jordan (University Requirement) This Course pursues the following objectives: - The study the physical geographical
More informationESRI Survey Summit August Clint Brown Director of ESRI Software Products
ESRI Survey Summit August 2006 Clint Brown Director of ESRI Software Products Cadastral Fabric How does Cadastral fit with Survey? Surveyors process raw field observations Survey measurements define high-order
More informationMcHenry County Property Search Sources of Information
Disclaimer: The information in this system may contain inaccuracies or typographical errors. The information in this system is a digital representation of information derived from original documents; as
More informationApplication of high-resolution (10 m) DEM on Flood Disaster in 3D-GIS
Risk Analysis V: Simulation and Hazard Mitigation 263 Application of high-resolution (10 m) DEM on Flood Disaster in 3D-GIS M. Mori Department of Information and Computer Science, Kinki University, Japan
More information5/15/ Use of Geographic Information System (GIS) in Grazing Management Muhammad Farooq Hussain Faisal 12-Arid-604 (M.
5/15/218 1 Use of Geographic Information ystem (GI) in Grazing Management Muhammad Farooq Hussain Faisal 12-Arid-64 (M.phill LM) 1 Contents History Back Ground Information Introduction of GI Who use GI?
More informationLecture 9: Reference Maps & Aerial Photography
Lecture 9: Reference Maps & Aerial Photography I. Overview of Reference and Topographic Maps There are two basic types of maps? Reference Maps - General purpose maps & Thematic Maps - maps made for a specific
More informationOverview key concepts and terms (based on the textbook Chang 2006 and the practical manual)
Introduction Geo-information Science (GRS-10306) Overview key concepts and terms (based on the textbook 2006 and the practical manual) Introduction Chapter 1 Geographic information system (GIS) Geographically
More informationGraduate Courses Meteorology / Atmospheric Science UNC Charlotte
Graduate Courses Meteorology / Atmospheric Science UNC Charlotte In order to inform prospective M.S. Earth Science students as to what graduate-level courses are offered across the broad disciplines of
More informationIdentifying Audit, Evidence Methodology and Audit Design Matrix (ADM)
11 Identifying Audit, Evidence Methodology and Audit Design Matrix (ADM) 27/10/2012 Exercise XXX 2 LEARNING OBJECTIVES At the end of this session participants will be able to: 1. Identify types and sources
More informationCENSUS MAPPING WITH GIS IN NAMIBIA. BY Mrs. Ottilie Mwazi Central Bureau of Statistics Tel: October 2007
CENSUS MAPPING WITH GIS IN NAMIBIA BY Mrs. Ottilie Mwazi Central Bureau of Statistics E-mail: omwazi@npc.gov.na Tel: + 264 61 283 4060 October 2007 Content of Presentation HISTORICAL BACKGROUND OF CENSUS
More informationMapping Earth. How are Earth s surface features measured and modeled?
Name Mapping Earth How are Earth s surface features measured and modeled? Before You Read Before you read the chapter, think about what you know about maps Record your thoughts in the first column Pair
More informationMapping Our World Chapter 2
Mapping Our World Chapter 2 Section 2.1: Latitude and Longitude Maps are flat models of threedimensional objects. For thousands of years people have used maps to define borders and to find places. With
More informationTerms GIS GPS Vector Data Model Raster Data Model Feature Attribute Table Point Line Polygon Pixel RGB Overlay Function
FINAL REVIEW FOR GIS (2016) PRACTICAL COMPONENT The first 40 mins of the exam will be open book and will require you to make a map using all the techniques learned over the semester. This map will be e-mailed
More informationGeoreferencing. datum. projection. scale. The next few lectures will introduce you to these elements. on the Earth, you ll need to understand how
Georeferencing GOAL: To assign a location to all the features represented in our geographic information data In order to do so, we need to make use of the following elements: ellipsoid/geoid To determine
More informationThe Road to Data in Baltimore
Creating a parcel level database from high resolution imagery By Austin Troy and Weiqi Zhou University of Vermont, Rubenstein School of Natural Resources State and local planning agencies are increasingly
More informationTHE 3D SIMULATION INFORMATION SYSTEM FOR ASSESSING THE FLOODING LOST IN KEELUNG RIVER BASIN
THE 3D SIMULATION INFORMATION SYSTEM FOR ASSESSING THE FLOODING LOST IN KEELUNG RIVER BASIN Kuo-Chung Wen *, Tsung-Hsing Huang ** * Associate Professor, Chinese Culture University, Taipei **Master, Chinese
More information2. GETTING STARTED WITH GIS
2. GETTING STARTED WITH GIS What are geographic information systems and what are they used for? ArcGIS: ArcMap, ArcCatalog and ArcToolbox Vector data vs. raster data vs. attribute tables Polygons, polylines,
More informationImagery and the Location-enabled Platform in State and Local Government
Imagery and the Location-enabled Platform in State and Local Government Fred Limp, Director, CAST Jim Farley, Vice President, Leica Geosystems Oracle Spatial Users Group Denver, March 10, 2005 TM TM Discussion
More informationWed. Apr. 25, 2018 GIS DEMO. Reading: Ch Comparing Image Types (Death Valley) Treat as review of techniques already studied
Wed. Apr. 25, 2018 GIS DEMO Reading: Ch. 14 -- Comparing Image Types (Death Valley) Treat as review of techniques already studied 1 GIS: Geographic Information Systems Way to organize data obtained by
More informationGeomatics: Geotechnologies in Action, Grade 12, University/College Expectations
Geographic Foundations: Space and Systems SSV.01 explain how the earth is modelled for scientific and mapping purposes; SSV.02 demonstrate an understanding of basic spatial concepts; Page 1 SSV.03 explain
More informationInteractive GIS in Veterinary Epidemiology Technology & Application in a Veterinary Diagnostic Lab
Interactive GIS in Veterinary Epidemiology Technology & Application in a Veterinary Diagnostic Lab Basics GIS = Geographic Information System A GIS integrates hardware, software and data for capturing,
More information