HOW TO CHOOSE AN APPROPRIATE

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "HOW TO CHOOSE AN APPROPRIATE"

Transcription

1 PTV VISUM TIPS & TRICKS: HOW TO CHOOSE AN APPROPRIATE COORDINATE SYSTEM? I imported network data in WGS84, calculated my link lengths, but they are all still zero. Why is that and how can I get to correct link lengths? * WGS84 stands for World Geodetic System The PTV Vision Traffic Support Team often receives this question. Given that PTV Visum is not a GIS system it threats coordinate values as unit less numbers, without knowing that WGS84 leads to nodes with coordinates in geographic degrees. On calculating link lengths, you end up with degrees, which are for example long. So you need link lengths in meter? Then you need your coordinates in meter too. This answer is associated with the wide theme of coordinate systems and how to use them. First, a coordinate system is useful: To be able to easily add or exchange network data with external sources To add stop points or line routes collected using GPS equipment To be able to use the AddIn Google Maps To be able to calculate the correct link lengths, important to obtain correct travel times PTV AG Aug-13 Page 1/5

2 How does PTV Visum handle a coordinate system? To understand this better, we will need a short detour through some geodesy basics. The term coordinate system, or better spatial reference system can, simplified said, contain three components: 1. A so-called Datum describing the Earth mathematically as some spheroid or ellipsoid. 2. A projection to match the spheroid s surface to the flat surface of a map or screen. However, a spheroid s surface cannot be flattened without distortion. Instead, you might put the spheroid inside a narrow cylinder. The circle where spheroid and cylinder have direct contact is never distorted. The surface closely to the circle will take only minor distortions. So you could project this surface from the spheroid onto the cylinder, strip off this are, unroll it and you ll have a flat surface. This is the basis for all Mercator projections. If you would lay down the cylinder, the contact circle leads over the poles. This is the idea behind the Transverse Mercator Projections, on which the German Gauß-Krüger system or the international UTM (Universal Transverse Mercator) are based. 3. A Cartesian coordinate frame, describing that flat surface with an origin point, orientation of its X and Y axis, their scale and offsets. If it uses Meters as unit scale, it is a metric coordinate frame. It may be however a spherical coordinate frame, offering longitude and latitude to describe a spherical surface in degrees. PTV AG Aug-13 Page 2/5

3 There are numerous spatial reference systems, each valid for some piece of the Earth s surface. To create a correct map in PTV Visum, you need to choose one matching to your model area, preferably a Projected Coordinate System (as PTV Visum calls it). Usually a metric system is used. Be aware, that an appropriate spatial reference system will minimize distortion, but it will alays be a trade off between preserving distances (correct lengths), areas (correct surfaces) or angles (correct shapes ). Distances are important to calculate the correct link lengths. Shapes are important, if you want to use a background image, showing some aerial image or map. The World Geodetic System, abbreviated as WGS84, can be viewed as a special spatial reference system. It uses its own WGS84 datum (in fact it is an adapted GRS80 ellipsoid). It uses a spherical coordinate frame, describing the Earth s surface with a geographic coordinate system, dividing the spheroid in longitude and latitude degrees. To display a map or aerial image onto the computer screen, it needs a projection. Accurate implementation in PTV Visum: Thus if you imported network data in WGS84, you first need to inform PTV Visum that your current network data complies with this spatial reference system. WGS84 is found as follows: 1. Go to Network Network Parameters System of co-ordinates Choose From file Click the button Geographic Coordinate Systems (double click to open) World choose WGS 1984.prj Zum Schluss beide Dialoge mit OK bestätigen. PTV AG Aug-13 Page 3/5

4 Leave both dialogs with OK. 2. If you want to change it to some matching projected coordinate system, look in: Network Network Parameters System of co-ordinates (click the button GCS_WGS_1984 ) Double click Geographic Coordinate Systems to close them) Projected Coordinate Systems 3. Das deutsche DHDN (Deutsches Hauptdreiecksnetz), auch als Gauß-Krüger bezeichnet, findet man unter: Projected Coordinate Systems National Grids drücke die Taste <d> und wähle die entsprechende Zone: For example the German DHDN ( Deutsches Hauptdreiecksnetz = main triangulation), often simply denoted Gauß-Krüger is found in: Projected Coordinate Systems National Grids press <d> and choose the appropriate zone: PTV AG Aug-13 Page 4/5

5 If you can t find any matching national system, you will always be able to find a UTM system, as following: Projected Coordinate Systems Utm Wgs 1984 choose a zone: A helpful overview of the UTM zones can be found on Wikipedia. Germany is within the zone 32. You do not need the latitude bands, coded like 32U for Germany. Sufficient is N or S for the northern or southern hemisphere respectively. Thus choose for Germany WGS 1984 UTM Zone 32N.prj. Note that these spatial reference systems use the WGS84 datum, share a transverse Mercator projection and define a Cartesian coordinate frame per zone. Still in need for your local system, which is not listed in PTV Visum s Projected Coordinate Systems? Than look in which offers to download PRJ files too. Please copy these in a user defined folder in \Documents and Settings\ [Username]\Application Data\Visum\115\Projections\Projected Coordinate Systems\and not in any \Program Files\PTV_Vision\ folder. Once a matching metric spatial reference system has been set, you will be able to obtain correct link lengths: PTV AG Aug-13 Page 5/5

Welcome to Lesson 3. It is important for a GIS analyst to have a thorough understanding of map projections and coordinate systems.

Welcome to Lesson 3. It is important for a GIS analyst to have a thorough understanding of map projections and coordinate systems. Welcome to Lesson 3. It is important for a GIS analyst to have a thorough understanding of map projections and coordinate systems. A GIS without coordinates would simply be a database like Microsoft Excel

More information

GEOGRAPHIC INFORMATION SYSTEMS Lecture 09: Map Projections

GEOGRAPHIC INFORMATION SYSTEMS Lecture 09: Map Projections GEOGRAPHIC INFORMATION SYSTEMS Lecture 09: Map Projections Earth Ellipsoid and Horizontal Datums (cont d) Components of a Geographic Coordinate System Recognize that there are three components to a geographic

More information

GEOGRAPHIC INFORMATION SYSTEMS Lecture 11: Projected Coordinate Systems

GEOGRAPHIC INFORMATION SYSTEMS Lecture 11: Projected Coordinate Systems UTM Coordinate System GEOGRAPHIC INFORMATION SYSTEMS Lecture 11: Projected Coordinate Systems Why do we need the UTM coordinate system? - in a rectangular (Cartesian) coordinate system, with linear x and

More information

Ellipsoid and Datum, Projection, Coordinate system, and Map Scale

Ellipsoid and Datum, Projection, Coordinate system, and Map Scale Ellipsoid and Datum, Projection, Coordinate system, and Map Scale Lectures 4 Sept 14, 2006 Why we need it? Earth Shape Models Flat earth models are still used for plane surveying, over distances short

More information

Geodesy and Datums. Ellipsoid and Geoid Geographic Coordinate system

Geodesy and Datums. Ellipsoid and Geoid Geographic Coordinate system Geodesy and Datums Ellipsoid and Geoid Geographic Coordinate system Defining the Ellipsoid The Earth is not perfectly round Fatter around the waist (equator) Flattened at the Poles To define this unique

More information

Map Projection, Datum and Plane Coordinate Systems

Map Projection, Datum and Plane Coordinate Systems Map Projection, Datum and Plane Coordinate Systems Geodetic Control Network Horizontal Control Network Datum A datum is a set of parameters defining a coordinate system, and a set of control points whose

More information

SPATIAL REFERENCE SYSTEMS

SPATIAL REFERENCE SYSTEMS SPATIAL REFERENCE SYSTEMS We will begin today with the first of two classes on aspects of cartography. Cartography is both an art and a science, but we will focus on the scientific aspects. Geographical

More information

Lecture 2. Map Projections and GIS Coordinate Systems. Tomislav Sapic GIS Technologist Faculty of Natural Resources Management Lakehead University

Lecture 2. Map Projections and GIS Coordinate Systems. Tomislav Sapic GIS Technologist Faculty of Natural Resources Management Lakehead University Lecture 2 Map Projections and GIS Coordinate Systems Tomislav Sapic GIS Technologist Faculty of Natural Resources Management Lakehead University Map Projections Map projections are mathematical formulas

More information

Map Projections & Coordinates. M. Helper 09-01-15 GEO327G/386G, UT Austin 1

Map Projections & Coordinates. M. Helper 09-01-15 GEO327G/386G, UT Austin 1 Map Projections & Coordinates 09-01-15 GEO327G/386G, UT Austin 1 Laying the earth flat Why? Need convenient means of measuring and comparing distances, directions, areas, shapes. Traditional surveying

More information

Projections. Shape (angles) Distance Direction Area. Only a sphere can retain all four properties

Projections. Shape (angles) Distance Direction Area. Only a sphere can retain all four properties Projections Projections Map projections are attempts to portray the surface of the earth (or a portion of the earth) on a flat surface. Four spatial relationships (or properties) between locations can

More information

GIS for Educators. Coordinate Reference System. Understanding of Coordinate Reference Systems.

GIS for Educators. Coordinate Reference System. Understanding of Coordinate Reference Systems. GIS for Educators Topic 7: Coordinate Reference Systems Objectives: Understanding of Coordinate Reference Systems. Keywords: Coordinate Reference System (CRS), Map Projection, On the Fly Projection, Latitude,

More information

An Introduction to GIS using ArcGIS Spring Lab Workshop 5 March S.P.Harish PhD Candidate Department of Politics New York University

An Introduction to GIS using ArcGIS Spring Lab Workshop 5 March S.P.Harish PhD Candidate Department of Politics New York University An Introduction to GIS using ArcGIS Spring Lab Workshop 5 March 2013 S.P.Harish PhD Candidate Department of Politics New York University Agenda What is GIS? Basic GIS Concepts Introduction to ArcGIS Coordinates

More information

It is a little challenging suppose you are to describe a point on the surface of a basketball.

It is a little challenging suppose you are to describe a point on the surface of a basketball. Coordinate Systems 1. Geographic coordinate system To locate a point on a piece of white paper, we usually use the distances of the point to the left/right edge (x) and top/bottom edge (y). Therefore the

More information

Lecture 4. Map Projections & Coordinate System in GIS

Lecture 4. Map Projections & Coordinate System in GIS Lecture 4 Map Projections & Coordinate System in GIS GIS in Water Resources Spring 2015 Geodesy, Map Projections and Coordinate Systems Geodesy - the shape of the earth and definition of earth datums Map

More information

GIS s s Roots in Cartography

GIS s s Roots in Cartography Following up on the last lecture GIS s s Roots in Cartography Getting Started With GIS Chapter 2 Information ordering: Lists and indexes Organizing data and information Information can be organized as

More information

Earth Coordinates & Grid Coordinate Systems

Earth Coordinates & Grid Coordinate Systems Earth Coordinates & Grid Coordinate Systems How do we model the earth? Datums Datums mathematically describe the surface of the Earth. Accounts for mean sea level, topography, and gravity models. Projections

More information

Registered map layers

Registered map layers Registered map layers Coordinate map systems Coordinate map systems 1. The Earth's Graticule Latitude and Longitude The graticule is the imaginary grid of lines running east-west lines of latitude (parallels)

More information

Projections & GIS Data Collection: An Overview

Projections & 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 information

What are map projections?

What are map projections? Page 1 of 155 What are map projections? ArcGIS 10 Within ArcGIS, every dataset has a coordinate system, which is used to integrate it with other geographic data layers within a common coordinate framework

More information

State Plane Coordinate Systems & GIS

State Plane Coordinate Systems & GIS State Plane Coordinate Systems & GIS An overview of SPCS with emphasis on Grid vs. Ground coordinates. New Jersey Geospatial Forum Meeting Friday, March 18 th 2005 Jesse Kozlowski NJ PLS History of SPCS

More information

An Introduction to Coordinate Systems in South Africa

An Introduction to Coordinate Systems in South Africa An Introduction to Coordinate Systems in South Africa Centuries ago people believed that the earth was flat and notwithstanding that if this had been true it would have produced serious problems for mariners

More information

Implementation Practice Web Mercator Map Projection

Implementation Practice Web Mercator Map Projection NGA.SIG.0011_1.0.0_WEBMERC NATIONAL GEOSPATIAL-INTELLIGENCE AGENCY (NGA) STANDARDIZATION DOCUMENT Implementation Practice Web Mercator Map Projection 2014-02-18 Version 1.0.0 OFFICE OF GEOMATICS NGA.SIG.0011_1.0.0_WEBMERC

More information

How To Set Up A GIS Project

How To Set Up A GIS Project --- Chapter Thirteen --- How To Set Up A GIS Project 1. How to start a new GIS project: The first step in using GIS in your research is to create a GIS project. A GIS project can be thought of as a space

More information

Latitude and Longitudes in Geodesy James R. Clynch February 2006

Latitude and Longitudes in Geodesy James R. Clynch February 2006 Latitude and Longitudes in Geodesy James R. Clynch February 2006 I. Latitude and Longitude on Spherical Earth Latitude and longitude are the grid lines you see on globes. For a spherical earth these are

More information

Tutorial 2 Exploring Map Projections and Grid Systems in ArcGIS 10

Tutorial 2 Exploring Map Projections and Grid Systems in ArcGIS 10 Tutorial 2 Exploring Map Projections and Grid Systems in ArcGIS 10 NOTE: Before beginning this tutorial, make sure your GEOGSV01 server folder is mapped on the computer you are using (as we did last week).

More information

EPSG. Coordinate Reference System Definition - Recommended Practice. Guidance Note Number 5

EPSG. Coordinate Reference System Definition - Recommended Practice. Guidance Note Number 5 European Petroleum Survey Group EPSG Guidance Note Number 5 Coordinate Reference System Definition - Recommended Practice Revision history: Version Date Amendments 1.0 April 1997 First release. 1.1 June

More information

THE UNIVERSAL GRID SYSTEM

THE UNIVERSAL GRID SYSTEM NGA Office of GEOINT Sciences Coordinate Systems Analysis (CSAT) Phone: 314-676-9124 Unclassified Email: coordsys@nga.mil March 2007 THE UNIVERSAL GRID SYSTEM Universal Transverse Mercator (UTM) Military

More information

INTRODUCTION: BASIC GEOGRAPHIC CONCEPTS. Eric Jessup Associate Professor School of Economic Sciences

INTRODUCTION: BASIC GEOGRAPHIC CONCEPTS. Eric Jessup Associate Professor School of Economic Sciences INTRODUCTION: BASIC GEOGRAPHIC CONCEPTS Eric Jessup Associate Professor School of Economic Sciences September 13, 2010 Outline What is geographical / spatial analysis and why do we care? Different types

More information

The Map Grid of Australia 1994 A Simplified Computational Manual

The Map Grid of Australia 1994 A Simplified Computational Manual The Map Grid of Australia 1994 A Simplified Computational Manual The Map Grid of Australia 1994 A Simplified Computational Manual 'What's the good of Mercator's North Poles and Equators, Tropics, Zones

More information

PLOTTING SURVEYING DATA IN GOOGLE EARTH

PLOTTING SURVEYING DATA IN GOOGLE EARTH PLOTTING SURVEYING DATA IN GOOGLE EARTH D M STILLMAN Abstract Detail surveys measured with a total station use local coordinate systems. To make the data obtained from such surveys compatible with Google

More information

Appendix B: Geographic Coordinates Systems & Map Projections. B.1 Approximating the Earth's Shape

Appendix B: Geographic Coordinates Systems & Map Projections. B.1 Approximating the Earth's Shape The following is an appendix from: Strindberg, S. In prep. Optimized Automated Survey Design in Wildlife Population Assessment. Unpublished PhD Thesis. University of St. Andrews. Appendix B: Geographic

More information

Oasis montaj Coordinate Systems

Oasis montaj Coordinate Systems Oasis montaj Coordinate Systems In Oasis montaj, working with map coordinate systems requires that the map coordinate system information be attached to any database, grid or map. Once you have attached

More information

Geographic Datums & Coordinates

Geographic Datums & Coordinates Geographic Datums & Coordinates What is the shape of the earth? Why is it relevant for GIS? 9-04-2012 GEO327G/386G, UT Austin 2-1 From Conceptual to Pragmatic Dividing a sphere into a stack of pancakes

More information

CAD-Earth User s Manual

CAD-Earth User s Manual CAD-Earth User s Manual Table of Contents Introduction... 2 CAD-Earth commands Import image from Google Earth... 4 Export CAD screenshot to Google Earth... 7 Import objects from Google Earth... 10 Export

More information

P-153. NICA D.C. Al. I. Cuza University, IASI, ROMANIA

P-153. NICA D.C. Al. I. Cuza University, IASI, ROMANIA P-153 CONVERSION OF COORDINATES BETWEEN THE GAUSS-KRÜGER AND UTM CARTOGRAPHIC PROJECTION SYSTEMS ON TOPOGRAPHIC MAPS IN ROMANIA AND REPUBLIC OF MOLDAVIA FOR GIS USE NICA D.C. Al. I. Cuza University, IASI,

More information

PEOPLE & SITES PEOPLE BIOGRAPHIES

PEOPLE & SITES PEOPLE BIOGRAPHIES 16 PEOPLE & SITES The People & Sites sections contain fields to help you provide contextual information for your collections. Artifacts, archival materials, photographs, and publications reveal something

More information

Using Geocoded TIFF & JPEG Files in ER Mapper 6.3 with SP1. Eric Augenstein Earthstar Geographics Web: www.es-geo.com

Using Geocoded TIFF & JPEG Files in ER Mapper 6.3 with SP1. Eric Augenstein Earthstar Geographics Web: www.es-geo.com Using Geocoded TIFF & JPEG Files in ER Mapper 6.3 with SP1 Eric Augenstein Earthstar Geographics Web: www.es-geo.com 1 Table of Contents WHAT IS NEW IN 6.3 SP1 REGARDING WORLD FILES?...3 WHAT IS GEOTIFF

More information

Massachusetts Institute of Technology Department of Urban Studies and Planning

Massachusetts Institute of Technology Department of Urban Studies and Planning Massachusetts Institute of Technology Department of Urban Studies and Planning 11.520: A Workshop on Geographic Information Systems 11.188: Urban Planning and Social Science Laboratory Lecture 3: More

More information

WGS AGD GDA: Selecting the correct datum, coordinate system and projection for north Australian applications

WGS AGD GDA: Selecting the correct datum, coordinate system and projection for north Australian applications internal report WGS AGD GDA: Selecting the correct datum, coordinate system and projection for north Australian applications JBC Lowry Hydrological and Ecological Processes Program Environmental Research

More information

Map Coordinates, GIS, and GPS for Enhanced 9-1-1

Map Coordinates, GIS, and GPS for Enhanced 9-1-1 Map Coordinates, GIS, and GPS for Enhanced 9-1-1 Keith W. Cunningham, Ph.D. 14 East Eighth Street Lawrence, KS 66044 800/238-1911 Maps and coordinates are used to describe features and their locations

More information

Topo Grabber Help. 2010 Fountain Computer Products

Topo Grabber Help. 2010 Fountain Computer Products Topo Grabber Help Topo Grabber Help All rights reserved. No parts of this work may be reproduced in any form or by any means - graphic, electronic, or mechanical, including photocopying, recording, taping,

More information

Earth Coordinates & Grid Coordinate Systems

Earth Coordinates & Grid Coordinate Systems Earth Coordinates & Grid Coordinate Systems You will always find parallels and meridians on largescale maps This is done to make the map a very close approximation to the size and shape of the piece of

More information

Project 1: Plotting Coordinates and Projections

Project 1: Plotting Coordinates and Projections 1 of 6 8/3/2007 1:54 PM Project 1: Plotting Coordinates and Projections Dan Uhrhan dfu101@psu.edu 2 of 6 8/3/2007 1:54 PM 3 of 6 8/3/2007 1:54 PM 4 of 6 8/3/2007 1:54 PM 5 of 6 8/3/2007 1:54 PM [Replace

More information

Surveying & Positioning Guidance note 5

Surveying & Positioning Guidance note 5 Surveying & Positioning Guidance note 5 Coordinate reference system definition recommended practice Revision history Version Date Amendments 2.1 January 2009 In example c corrected value for inverse flattening

More information

Math 215 Project (25 pts) : Using Linear Algebra to solve GPS problem

Math 215 Project (25 pts) : Using Linear Algebra to solve GPS problem Due Thursday March 1, 2012 NAME(S): Math 215 Project (25 pts) : Using Linear Algebra to solve GPS problem 0.1 Introduction The age old question, Where in the world am I? can easily be solved nowadays by

More information

GEOGRAPHIC INFORMNATION SYSTEMS Lecture 10: State Plane Coordinate System

GEOGRAPHIC INFORMNATION SYSTEMS Lecture 10: State Plane Coordinate System State Plane Coordinate System GEOGRAPHIC INFORMNATION SYSTEMS Lecture 10: State Plane Coordinate System Why do we need the State Plane Coordinate System? - the SPCS was designed as a state by state rectangular

More information

GIS IN ECOLOGY: SPATIAL REFERENCING

GIS IN ECOLOGY: SPATIAL REFERENCING GIS IN ECOLOGY: SPATIAL REFERENCING Contents Introduction... 2 Coordinate Systems... 2 Map Projections... 3 Georeferencing... 5 Data Sources... 7 Tasks... 7 Undefined versus Unprojected Data... 7 Setting

More information

National Register of Historic Places: GIS Webinar Cultural Resource GIS Facility National Park Service June 2012

National Register of Historic Places: GIS Webinar Cultural Resource GIS Facility National Park Service June 2012 National Register of Historic Places: GIS Webinar Cultural Resource GIS Facility National Park Service June 2012 In February and March 2012 the National Register of Historic Places held webinars in conjunction

More information

Geographic Coordinates. Measurement: Just use GPS. Geographic Coordinates 1/17/2013

Geographic Coordinates. Measurement: Just use GPS. Geographic Coordinates 1/17/2013 Geographic Coordinates Analytical and Computer Cartography Lecture 3: Review: Coordinate Systems Geographic Coordinates Geographic coordinates are the earth's latitude and longitude system, ranging from

More information

World Geography Unit 1 - Test Introduction to World of Geography

World Geography Unit 1 - Test Introduction to World of Geography Name World Geography Unit 1 - Test Introduction to World of Geography Term Identification Directions: Pick a word from the box that best completes the sentences below. distortion longitude Equator geography

More information

WHAT YOU NEED TO USE THE STATE PLANE COORDINATE SYSTEMS

WHAT YOU NEED TO USE THE STATE PLANE COORDINATE SYSTEMS WHAT YOU NEED TO USE THE STATE PLANE COORDINATE SYSTEMS N & E State Plane Coordinates for Control Points AZIMUTHS - True, Geodetic, or Grid - Conversion from Astronomic to Geodetic (LaPlace Correction)

More information

An ArcGIS Tutorial Concerning Transformations of Geographic Coordinate Systems, with a Concentration on the Systems Used in Lao PDR.

An ArcGIS Tutorial Concerning Transformations of Geographic Coordinate Systems, with a Concentration on the Systems Used in Lao PDR. An ArcGIS Tutorial Concerning Transformations of Geographic Coordinate Systems, with a Concentration on the Systems Used in Lao PDR. Introduction...3 PART 1, A Theoretical Background about Coordinate Systems...3

More information

Section 3 Mapping Earth s Surface

Section 3 Mapping Earth s Surface Section 3 Mapping Earth s Surface Key Concept Maps are tools that are used to display data about a given area of a physical body. What You Will Learn Maps can be used to find locations on Earth and to

More information

Learning about GPS and GIS

Learning about GPS and GIS Learning about GPS and GIS Standards 4.4 Understand geographic information systems (G.I.S.). B12.1 Understand common surveying techniques used in agriculture (e.g., leveling, land measurement, building

More information

A crash course to Coordinate Systems, Map Projections and Data Formats

A crash course to Coordinate Systems, Map Projections and Data Formats A crash course to Coordinate Systems, Map Projections and Data Formats Ilkka Rinne Founder & CTO, Spatineo Oy GeoMashup CodeCamp 2011 University of Helsinki Department of Computer Science About Us Startup

More information

means of the Orologi Solari program

means of the Orologi Solari program How to design a vertical sundial by means of the Orologi Solari program It is not that difficult to design and to build a vertical sundial: everyone could experiment. For sundial design the following parameters

More information

Measuring the Earth Using a GPS M. Scott Wilkerson & M. Beth Wilkerson, DePauw University, May 10, 2007

Measuring the Earth Using a GPS M. Scott Wilkerson & M. Beth Wilkerson, DePauw University, May 10, 2007 Measuring the Earth Using a GPS M. Scott Wilkerson & M. Beth Wilkerson, DePauw University, May 10, 2007 Modified from: Kerski, J.J., 2007, Measuring the Earth s Circumference with GPS, Copyright ESRI,

More information

Chapter 6: Data Acquisition Methods, Procedures, and Issues

Chapter 6: Data Acquisition Methods, Procedures, and Issues Chapter 6: Data Acquisition Methods, Procedures, and Issues In this Exercise: Data Acquisition Downloading Geographic Data Accessing Data Via Web Map Service Using Data from a Text File or Spreadsheet

More information

Map Projection Using ArcGIS

Map Projection Using ArcGIS Map Projection Using ArcGIS Francisco Olivera, Ph.D., P.E. Srikanth Koka Lauren Walker Aishwarya Vijaykumar Department of Civil Engineering December 5, 2011 Contents Brief Overview of Map Projection Using

More information

GEOGRAPHIC INFORMATION SYSTEMS CERTIFICATION

GEOGRAPHIC INFORMATION SYSTEMS CERTIFICATION GEOGRAPHIC INFORMATION SYSTEMS CERTIFICATION GIS Syllabus - Version 1.2 January 2007 Copyright AICA-CEPIS 2009 1 Version 1 January 2007 GIS Certification Programme 1. Target The GIS certification is aimed

More information

量 說 Explanatory Notes on Geodetic Datums in Hong Kong

量 說 Explanatory Notes on Geodetic Datums in Hong Kong 量 說 Explanatory Notes on Geodetic Datums in Hong Kong Survey & Mapping Office Lands Department 1995 All Right Reserved by Hong Kong Government 留 CONTENTS INTRODUCTION............... A1 HISTORICAL BACKGROUND............

More information

Modeling CAD Data in ArcGIS

Modeling CAD Data in ArcGIS Modeling CAD Data in ArcGIS What You Will Need ArcGIS 8.1 Desktop (ArcInfo, ArcEditor, or ArcView license) Pentium III computer that meets ArcGIS requirements 50 MB of free disk space by Mike Price, ESRI

More information

4 The Rhumb Line and the Great Circle in Navigation

4 The Rhumb Line and the Great Circle in Navigation 4 The Rhumb Line and the Great Circle in Navigation 4.1 Details on Great Circles In fig. GN 4.1 two Great Circle/Rhumb Line cases are shown, one in each hemisphere. In each case the shorter distance between

More information

Creating Figure Ground Maps in ArcMap 10.x: Basic procedures to download, open, manipulate and print spatial data

Creating Figure Ground Maps in ArcMap 10.x: Basic procedures to download, open, manipulate and print spatial data Creating Figure Ground Maps in ArcMap 10.x: Basic procedures to download, open, manipulate and print spatial data These procedures outline: A. Retrieving Property Data B. Uncompressing the Downloaded Files

More information

IMPORTING CAD BATHYMETRY FILES

IMPORTING CAD BATHYMETRY FILES IMPORTING CAD BATHYMETRY FILES Makai Ocean Engineering Inc., PO Box 1206, Kailua, HI 96734 Phone (808) 259-8871, Fax (808) 259-8238 This tutorial is designed to assist you with importing Microstation (.dgn)

More information

Field Preparations with Topcon Tools

Field Preparations with Topcon Tools Oscar R. Cantu Topcon University FTP Site For access to previously offered webinars and supporting documentation, please go to: ftp://tulive+topconuniversity.com:tulive@ftp.topconuniversity.com Topcon

More information

Map Projection Using ArcGIS

Map Projection Using ArcGIS Map Projection Using ArcGIS Prepared by Francisco Olivera, Ph.D., P.E., Srikanth Koka and Lauren Walker Department of Civil Engineering September 25, 2006 Contents: Brief Overview of Map Projection Using

More information

The Globe Latitudes and Longitudes

The Globe Latitudes and Longitudes INDIAN SCHOOL MUSCAT MIDDLE SECTION DEPARTMENT OF SOCIAL SCIENCE The Globe Latitudes and Longitudes NAME: CLASS VI SEC: ROLL NO: DATE:.04.2015 I NAME THE FOLLOWING: 1. A small spherical model of the Earth:

More information

EECS467: Autonomous Robotics Laboratory Prof. Edwin Olson. Map Projections and GPS

EECS467: Autonomous Robotics Laboratory Prof. Edwin Olson. Map Projections and GPS EECS467: Autonomous Robotics Laboratory Prof. Edwin Olson Map Projections and GPS Cartography Several purposes of maps Geographic Information Systems (GIS) - Where is stuff? Measure distances, etc. Navigation

More information

Google Earth SWAC Module 7: GeoViewers

Google Earth SWAC Module 7: GeoViewers Google Earth SWAC Module 7: GeoViewers 1. Introduction: Google Earth is a free web-based geospatial data viewer maintained by Google in Mountainview, California. The program was developed under a different

More information

UTM: Universal Transverse Mercator Coordinate System

UTM: Universal Transverse Mercator Coordinate System Practical Cartographer s Reference #01 UTM: Universal Transverse Mercator Coordinate System 180 174w 168w 162w 156w 150w 144w 138w 132w 126w 120w 114w 108w 102w 96w 90w 84w 78w 72w 66w 60w 54w 48w 42w

More information

MACROSCOPIC TRANSPORT MODEL DATA 3D VISUALISATION USING KML

MACROSCOPIC TRANSPORT MODEL DATA 3D VISUALISATION USING KML Proceedings of the 10th International Conference Reliability and Statistics in Transportation and Communication (RelStat 10), 20 23 October 2010, Riga, Latvia, p. 440-446. ISBN 978-9984-818-34-4 Transport

More information

Guide to Viewing Maps in Google Earth

Guide to Viewing Maps in Google Earth Guide to Viewing Maps in Google Earth The BCT made the decision to provide the GIS (Geographic Information System) resources for Bat Groups in the form of Google Earth maps because they do not require

More information

UTM Zones for the US UTM UTM. Uniform strips Scalable coordinates

UTM Zones for the US UTM UTM. Uniform strips Scalable coordinates UTM UTM Uniform strips Scalable coordinates Globally consistent, most popular projection/coordinate system for regional to global scale geospatial data (i.e. satellite images global scale datasets USGS/EDC)

More information

2 GIS concepts. 2.1 General GIS principles

2 GIS concepts. 2.1 General GIS principles 2 GIS concepts To use GIS effectively, it is important to understand the basic GIS terminology and functionality. While each GIS software has slightly different naming conventions, there are certain principles

More information

The World Geographic Reference System is used for aircraft navigation. GEOREF is based on latitude and longitude. The globe is divided into twelve

The World Geographic Reference System is used for aircraft navigation. GEOREF is based on latitude and longitude. The globe is divided into twelve The World Geographic Reference System is used for aircraft navigation. GEOREF is based on latitude and longitude. The globe is divided into twelve bands of latitude and twenty-four zones of longitude,

More information

1.7 Cylindrical and Spherical Coordinates

1.7 Cylindrical and Spherical Coordinates 56 CHAPTER 1. VECTORS AND THE GEOMETRY OF SPACE 1.7 Cylindrical and Spherical Coordinates 1.7.1 Review: Polar Coordinates The polar coordinate system is a two-dimensional coordinate system in which the

More information

CONTROL POINT SURVEYING AND TOPOGRAPHIC MAPPING

CONTROL POINT SURVEYING AND TOPOGRAPHIC MAPPING CONTROL POINT SURVEYING AND TOPOGRAPHIC MAPPING Shoichi Oki Land Bureau, National Land Agency, Japan Keywords: control point, survey, topography, mapping, geodesy Contents 1. Introduction 2. Geometric

More information

Maintaining High Accuracy in Modern Geospatial Data

Maintaining High Accuracy in Modern Geospatial Data Maintaining High Accuracy in Modern Geospatial Data Patrick Cunningham President info@bluemarblegeo.com www.bluemarblegeo.com +1 (207) 582 6747 Copyright 2010 Blue Marble Geographics Concepts Geodesy -

More information

Exer. 1 Using Handheld GPS for location & recording points

Exer. 1 Using Handheld GPS for location & recording points Exer. 1 Using Handheld GPS for location & recording points Field Objectives: 1. Familiarity with handheld receivers (Trimble Juno) 2. Basic positioning in Lat/Long and UTM 3. Familiarity with changing

More information

KML EXPORT & 3D CONSTRUCTION POINT TIP SHEET FOR iwitness TM V2

KML EXPORT & 3D CONSTRUCTION POINT TIP SHEET FOR iwitness TM V2 KML EXPORT & 3D CONSTRUCTION POINT TIP SHEET FOR iwitness TM V2 Working with GPS Coordinates STEP 1. Conduct the iwitness project and assure the scale distance used is set in Meters (Metres). NOTE: there

More information

WILD 3710 Lab 3: GIS Data Exploration Camp W.G. Williams

WILD 3710 Lab 3: GIS Data Exploration Camp W.G. Williams WILD 3710 Lab 3: GIS Data Exploration Camp W.G. Williams -Laboratory- TAs and Lab Instructors: Chris McGinty chris@gis.usu.edu Office: JQL 146 Office Hours: W 2:30 3:30 or by appt. Alex Hernandez alex@gis.usu.edu

More information

ArcView How to do it Manual No. 2: Georeferencing CAD Files

ArcView How to do it Manual No. 2: Georeferencing CAD Files ArcView How to do it Manual No. 2: Georeferencing CAD Files Jeremy Green Report Department of Maritime Archaeology Western Australian Museum, No. 227 2008 What is georeferencing? A Geographical Information

More information

SESSION 8: GEOGRAPHIC INFORMATION SYSTEMS AND MAP PROJECTIONS

SESSION 8: GEOGRAPHIC INFORMATION SYSTEMS AND MAP PROJECTIONS SESSION 8: GEOGRAPHIC INFORMATION SYSTEMS AND MAP PROJECTIONS KEY CONCEPTS: In this session we will look at: Geographic information systems and Map projections. Content that needs to be covered for examination

More information

Oregon Geographic Information Council (OGIC) GIS Program Leaders Cartographic Elements Best Practices Version 1.0.7

Oregon Geographic Information Council (OGIC) GIS Program Leaders Cartographic Elements Best Practices Version 1.0.7 Oregon Geographic Information Council (OGIC) GIS Program Leaders Cartographic Elements Best Practices Version 1.0.7 Introduction The purpose of this document is to serve as a set of Oregon best practices

More information

What do I do first in ArcView 8.x? When the program starts Select from the Dialog box: A new empty map

What do I do first in ArcView 8.x? When the program starts Select from the Dialog box: A new empty map www.library.carleton.ca/find/gis Introduction Introduction to Georeferenced Images using ArcGIS Georeferenced images such as aerial photographs or satellite images can be used in many ways in both GIS

More information

GPS AS THE DEVICE OF JUNCTION OF TRIANGULATION NETWORKS

GPS AS THE DEVICE OF JUNCTION OF TRIANGULATION NETWORKS GPS AS THE DEVICE OF JUNCTION OF TRIANGULATION NETWORKS L. VÖLGYESI and J. VARGA Department of Geodesy and Surveying Budapest University of Technology and Economy H-1521 Budapest, Hungary Abstract Conversion

More information

ADWR GIS Metadata Policy

ADWR GIS Metadata Policy ADWR GIS Metadata Policy 1 PURPOSE OF POLICY.. 3 INTRODUCTION.... 4 What is metadata?... 4 Why is it important? 4 When to fill metadata...4 STANDARDS. 5 FGDC content standards for geospatial metadata...5

More information

Geocoding and Buffering Addresses in ArcGIS

Geocoding and Buffering Addresses in ArcGIS INTRODUCTION and Buffering Addresses in ArcGIS is the process of assigning location coordinates in a continuous, globlal reference system (Latitude and Longitude, for instance) to street addresses. While

More information

Experiment 5: Magnetic Fields of a Bar Magnet and of the Earth

Experiment 5: Magnetic Fields of a Bar Magnet and of the Earth MASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of Physics 8.02 Spring 2005 Experiment 5: Magnetic Fields of a Bar Magnet and of the Earth OBJECTIVES 1. To examine the magnetic field associated with a

More information

SECOND GRADE 1 WEEK LESSON PLANS AND ACTIVITIES

SECOND GRADE 1 WEEK LESSON PLANS AND ACTIVITIES SECOND GRADE 1 WEEK LESSON PLANS AND ACTIVITIES UNIVERSE CYCLE OVERVIEW OF SECOND GRADE UNIVERSE WEEK 1. PRE: Discovering stars. LAB: Analyzing the geometric pattern of constellations. POST: Exploring

More information

Basic Coordinates & Seasons Student Guide

Basic Coordinates & Seasons Student Guide Name: Basic Coordinates & Seasons Student Guide There are three main sections to this module: terrestrial coordinates, celestial equatorial coordinates, and understanding how the ecliptic is related to

More information

DNR Garmin Software Tutorial Version 5.4.1

DNR Garmin Software Tutorial Version 5.4.1 DNR Garmin Software Tutorial Version 5.4.1 CONTENTS DOWNLOAD INSTALLATION INITIAL SETUP WAYPOINT UPLOAD WAYPOINT DOWNLOAD TRACKS ROUTES DNR Garmin Software Tutorial Version 5.4.1 DOWNLOAD: DNR Garmin can

More information

Digitizing GIS Feature Information

Digitizing GIS Feature Information Digitizing GIS Feature Information Digitizing The process of tracing an analog or digital image to create features (points, lines, or polygons) in a GIS data base Analog images are hard copy images such

More information

Data Visualization Techniques and Practices Introduction to GIS Technology

Data Visualization Techniques and Practices Introduction to GIS Technology Data Visualization Techniques and Practices Introduction to GIS Technology Michael Greene Advanced Analytics & Modeling, Deloitte Consulting LLP March 16 th, 2010 Antitrust Notice The Casualty Actuarial

More information

Downloading Earthquake Data from the USGS Earthquake Hazards Site for Anywhere in the World and Studying it Using ArcGIS

Downloading Earthquake Data from the USGS Earthquake Hazards Site for Anywhere in the World and Studying it Using ArcGIS Downloading Earthquake Data from the USGS Earthquake Hazards Site for Anywhere in the World and Studying it Using ArcGIS Authors: Barbara and David Tewksbury Institution: Hamilton College e-mail: btewksbu@hamilton.edu;

More information

GCalc 2.1. GDA94 Datum Transformation DLL Technical Specification

GCalc 2.1. GDA94 Datum Transformation DLL Technical Specification GCalc 2.1 GDA94 Datum Transformation DLL Technical Specification This publication has been compiled by Roger Fraser previously of Department of Natural Resources and Mines. State of Queensland, 2013. The

More information

Solar energy and the Earth s seasons

Solar energy and the Earth s seasons Solar energy and the Earth s seasons Name: Tilt of the Earth s axis and the seasons We now understand that the tilt of Earth s axis makes it possible for different parts of the Earth to experience different

More information

The Chief Directorate: National

The Chief Directorate: National Surveying The South African Coordinate Reference System (Part 1) by Aslam Parker, Chief Directorate: National Geo-spatial Information This article will define the various elements of the South African

More information

ESTIMATION USABILITY OF THE FREE SOFTWARE FOR TRANSFORMATION OF GEODETIC COORDINATES BETWEEB LOCAL AND GLOBAL DATUMS-EXAMPLE OF THE ADRIATIC SEA

ESTIMATION USABILITY OF THE FREE SOFTWARE FOR TRANSFORMATION OF GEODETIC COORDINATES BETWEEB LOCAL AND GLOBAL DATUMS-EXAMPLE OF THE ADRIATIC SEA ESTIMATION USABILITY OF THE FREE SOFTWARE FOR TRANSFORMATION OF GEODETIC COORDINATES BETWEEB LOCAL AND GLOBAL DATUMS-EXAMPLE OF THE ADRIATIC SEA Duplančić Leder, Tea; Faculty of Civil Engineering and Architecture,

More information