Registered map layers


 Gervais Hart
 2 years ago
 Views:
Transcription
1 Registered map layers Coordinate map systems
2 Coordinate map systems 1. The Earth's Graticule Latitude and Longitude
3 The graticule is the imaginary grid of lines running eastwest lines of latitude (parallels) and northsouth lines of longitude (meridians) The system was first devised by Hipparchus ( BC)
4 Latitude Latitude = the vertical angle from the centre of earth to the location e.g. Prince George is at 54 N Quesnel is at 53 N 90N Latitude is 0 on the equator, 90 (N and S) for the poles. 1 degree = 60 (minutes) 1 = 60 (seconds)
5 Longitude Longitude = the angle formed between line from centre of earth to the (arbitrary) 'prime meridian' running through Greenwich, England and the local meridian. The 0 location is arbitrary. Longitude ranges from 0 to 180 W / 180 E (the same line) Prince George = 123 W
6 World Time zones one hour zone per 15 longitude (=24 zones/ hours per 360 longitude) Polar areas use GMT zulu time
7 Longitude The prime meridian location is arbitrary it could have been through Paris. The Paris meridian has a longer history now at longitude east
8
9 Putting the Prime Meridian in England is just one example of:
10 We identify locations by latitude, longitude e.g. UNBC campus agora See: In decimal degrees: , (N, W) Note that longitude is negative In degrees, minutes, seconds: (N) (W) In degrees and decimal minutes (e.g. GPS)
11 Geographic referencing issues a. Geographic is not decimal, it is sexagesimal (= base 60) 1 degree = 60 minutes 1 minute = 60 seconds Decimal degrees: = /60 = 0.5 Decimal degrees: = /60 = 0.6 Decimal degrees: = /(60*60) = 0.01 Lat/long on Google maps:
12 b. Geographic referencing is suitable for storing global datasets, but involves negative values south and west of 0, 0 PG: 54N, 123W [54, 123] 180 E/W 0,0
13 c. The main issue with Longitude 1 degree longitude varies widely from ~111 km at the equator to 0 km at poles ~ half the distance at 60 N/S i.e. It is not rectangular 1 degree longitude varies Equator This means the geographic graticule is used for data storage but is not ideal as a coordinate system for digital mapping
14 2007 (OK) scale is consistent 2008: horizontal scale is almost double
15 Latitude and Longitude Length of One Degree of Longitude Length of a Degree of Latitude Latitude Kilometres Miles Latitude Kilometres Miles 0º º º º º º º º º º º º º º º º º º º º
16 2. The Geoid Earth is not a perfect sphere, it is ellipsoidal.. The difference between the length of the two axes = the amount of 'polar flattening' is about 1/300 (0.3%)
17 Name Official Ellipsoids (from J. Snyder, Map ProjectionsA Working Manual) Date Equatorial Radius a (metres) Polar Radius b (metres) WGS ,378,137 6,356,752 1/298 GRS ,378,137 6,356,752 1/298 WGS ,378,135 6,356,750 1/298 International ,378,388 6,356,912 1/297 Clarke ,378,206 6,356,584 1/295 Everest ,377,276 6,356,075 1/301 Polar Flattening Each ellipsoid includes a 'Datum' = "a set of values that serve as a base for mapping" For Canadian and North American mapping, the two most important are: a. North American Datum, NAD27 (1927) based on Clarke 1866 b. North American Datum, NAD83 (1983) based on GRS80 / WGS 1984
18 Datums a. North American Datum, NAD27 (1927) based on Clarke 1866 b. North American Datum, NAD83 based on GRS80/WGS > NAD27 was the datum for topographic mapping in the 20th century > NAD83 is the datum for digital mapping / GIS data > The two can differ by up to 100 metres (x) and 200 metres (y)
19 The shift: e.g. Greenwich prime meridian
20 3. UTM map coordinates a rectangular system Critical for importing and combining layers for mapping
21 Universal Transverse Mercator (UTM) System this bit is hard so pay attention The world is divided into 60 x 6 º longitude (vertical) strips numbered 160 from 180 degrees West east to 180 degrees East
22 Canada: UTM zones Zone Central Meridian the width of each zone varies from 666 km (6 x 111km) at the equator.. to ~120 km (6 x 20 km) at 80 N/S, with a central meridian in the middle
23 10,000,000 UTM coordinates are in metres Within each zone 0 The Y coordinate Northings (N): measured from the Equator (0) to the north pole (10,000,000) in metres
24 UTM coordinates The x coordinate  this is the hardest part Eastings (E) for each zone based on the zone Central Meridian at 500,000 the easting value increases to the east, but not above 1,000,000 the easting value decreases to the west but not below zero BC range= 300, ,000 Zone must be given as Coordinates repeat for each zone
25 UTM : Eastings are 6 digit, Northings are 7digit (in Canada) Blue grid squares in this map are 1000m = 1km
26 BC: UTM zones How do we deal with multiple UTM zones: Eastings coordinates switch from ~700,000 at the east edge of one zone to ~300,000 at the west edge of the next?
27 BC Albers coordinate system BC uses UTM for local areas But Albers for the whole province
28 It may make more sense here :  view these also in the lab PGMAP: shows UTM coordinates or lat/long (geographic) BC IMAP: shows UTM (5 zones), Geographic and Albers View these also in Google Earth The UTM system works well for a local area
29 Summary: BC mapping coordinates Could be one of: 1. Geographic lat. / long. for global reference 2. UTM zones for local /regional mapping 3. BC Albers  for BC provincial data Why is it important because we import data from different sources.. and they need to line up
30 Web references Natural Resources Canada UTM grid UTM system BC Ministry of Forests ArcGIS resources earth graticule ICSM: Fundamentals of mapping (Earth s Coordinate System) degree graticule intersections : confluence.org
The Earth's Graticule
Georeferencing How do we make sure all our data layers line up? Georeferencing: = linking a layer or dataset with spatial coordinates Registration: = lining up layers with each other Rectification: =The
More informationf = difference/major axis = ~1/300 for earth
Map Projection and Coordinates The shape of the earth Models Sphere with radius of ~6378 km Ellipsoid (or Spheroid) with equatorial radius (semimajor axis) of ~6378 km and polar radius (semiminor axis)
More information2016/07/25. GIS 211 Map Projections & Coordinate Systems Chang Chapter 2. Why is this important to YOU? Dr W Britz
GIS 211 Map Projections & Coordinate Systems Chang Chapter 2 Dr W Britz Every map user and maker should have a basic understanding of projections no matter how much computers seem to have automated the
More informationCoordinate Systems key concepts. Projections and Coordinate Systems Data Quality Meta Meta Data
Coordinate Systems Coordinate Systems key concepts Projections and Coordinate Systems Data Quality Meta Meta Data Projections and Coordinate Systems: Geographic Coordinate System Uses Uses 3D spherical
More informationGeographic Coordinates or longitude/latitude will vary depending on the assumed shape of the globe
Geographic Coordinates or longitude/latitude will vary depending on the assumed shape of the globe 1 Latitude is the angle north or south (think ladder going north south) Longitude is the angle east or
More informationMap Projections and Map Coordinate Systems
Map Projections and Map Coordinate Systems Jamie Wolfe CITE Marshall University Huntington, WV  25755 3046966042 Jawolfe@marshall.edu IS 645 Introduction to GIS Lecture 03, May 23, 2000 Today s class
More informationSPATIAL 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 informationSuccess with GPS Angie Schmidt, IDFG
Success with GPS Angie Schmidt, IDFG Geographic Coordinate Systems and Projections. Decimal Degrees and Degrees Minutes Seconds DNR Garmin for GPS waypoint management GPS tips Submitting coordinate information
More informationGEOGRAPHIC 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 informationG492 GIS for Earth Sciences Map Projections and Coordinate Systems
G492 GIS for Earth Sciences Map Projections and Coordinate Systems I. Introduction A. Fundamental Concern with Map Work 1. Maps / GIS a. 2D representation of Earth surface b. locations of map features
More informationCoordinate Systems, Datum and Map Projection. Dr. Maher A. ElHallaq Lecturer of Surveying The Islamic University of Gaza
Coordinate Systems, Datum and Map Projection Dr. Maher A. ElHallaq Lecturer of Surveying The Islamic University of Gaza Every map user and maker should have a basic understanding of projections no matter
More informationWelcome 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 informationCoordinate Systems and Map Projections
Coordinate Systems and Map Projections Introduction Every map user and maker should have a basic understanding of projections and coordinate systems no matter how much computers seem to have automated
More informationCoordinate Systems. Every coordinate system has an initial reference point or origin All mapped features are represented in some coordinate system
Coordinate Systems Coordinate Systems A coordinate system is a 2 or 3D reference frame used to specify locations on the earth. Many different coordinate systems exist, and each is defined by an origin,
More informationGeographic Datums & Coordinates
Geographic Datums & Coordinates What is the shape of the earth? Why is it relevant for GIS? 9042012 GEO327G/386G, UT Austin 21 From Conceptual to Pragmatic Dividing a sphere into a stack of pancakes
More informationEarth 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 informationGIS for Disaster Management
GIS for Disaster Management Week 04 These slides are taken form Hongjie Xie; Earth shape models Flat earth models are still used for plane surveying, over distances short enough so that earth curvature
More informationLecture 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 informationRepresenting The Shape of the Earth
Representing The Shape of the Earth Geoids Ellipsoids Datums Coordinate Systems Projections The Shape of the Earth 3 ways to model it Topographic surface the land/air interface complex (rivers, valleys,
More informationMap Projection. Overview. Projection: An Introduction. LA561 Computer Applications in LA (GIS)
LA561 Computer Applications in LA (GIS) Map Projection Dr. Ragab Khalil Department of Landscape Architecture Faculty of Environmental Design King AbdulAziz University Room 103 Overview 1. Geographic coordinate
More informationLecture 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 informationMap 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 informationEllipsoid 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 informationGEOGRAPHIC 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 informationAn 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 informationEX 2 GEOREFERENCING. Part I  A theoretical background about Coordinate Systems
EX 2 GEOREFERENCING Introduction A coordinate system (CS) provides a fundamental spatial framework to support the planning and development of a nation. All spatial data has a coordinate system to define
More informationUTM and UPS James R. Clynch 2003
UTM and UPS James R. Clynch 2003 I. Introduction The Universal Transverse Mercator (UTM) projection coordinates occur on most topographic maps. This is the Northing and Easting coordinates discussed below.
More informationGIS FINAL EXAM. Meridians Lines of equal longitude. Begin at 0 degrees, starting in Greenwich, England. Goes 180 degrees West and East;
GIS FINAL EXAM Projecting GIS data & map projections Plannimetric coordinates  systems that are expressed in measures of x and y values. Geographic coordinates  systems, on the other hand, are expressed
More informationDecoding the Mystery of Coordinates
Decoding the Mystery of Coordinates NHLSA TOWN MONUMENT LOCATION WORKSHOP UNH DURHAM, N.H. 8112007 PART 1: THE DIFFERENT COORDINATE SYSTEMS Bob Moynihan UNH  TSAS Coordinate Systems 1 Decoding the Mystery
More informationIt 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 informationMap Projections & Coordinates. M. Helper 090115 GEO327G/386G, UT Austin 1
Map Projections & Coordinates 090115 GEO327G/386G, UT Austin 1 Laying the earth flat Why? Need convenient means of measuring and comparing distances, directions, areas, shapes. Traditional surveying
More informationEarth 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 informationGEOGRAPHIC 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 informationDATUM SHIFTS AND DIGITAL MAP COORDINATE DISPLAYS. The Real World, Maps, and Coordinate Systems
DATUM SHIFTS AND DIGITAL MAP COORDINATE DISPLAYS Larry Moore U.S. Geological Survey lmoore@usgs.gov Revised March, 2001 Paper maps may be printed with reference points for several different grid systems.
More informationGeographic 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 informationMSI PLANET Terrain Data UTM Projection
Pathloss 4.0 MSI PLANET Terrain Database UTM Projection MSI PLANET Terrain Data UTM Projection Universal Transverse Mercator (UTM) Projection The UTM projection divides the world into 60 zones or segments.
More informationTHE UNIVERSAL GRID SYSTEM
NGA Office of GEOINT Sciences Coordinate Systems Analysis (CSAT) Phone: 3146769124 Unclassified Email: coordsys@nga.mil March 2007 THE UNIVERSAL GRID SYSTEM Universal Transverse Mercator (UTM) Military
More informationSS 3 MATHS NOTE WEEK 1
SS 3 MATHS NOTE WEEK 1 Longitude and Latitude Lines of latitude run East & West or horizontal but measure distance North & South of the Equator vertically. The equator is labeled as zero degrees latitude.
More informationPEOPLE & 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 informationUTM SYSTEM. COMPOSED AND PRODUCED BY : Chris Rule. Permission is granted for use by acknowledging the author s name.
COMPOSED AND PRODUCED BY : Chris Rule. Permission is granted for use by acknowledging the author s name. UTM stands for Universal Transverse Mercator which is a technical term for the type of map projection.
More informationGIS 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 informationGIS 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 informationDatums, Coordinates, & Projections UNCLASSIFIED
Datums, Coordinates, & Projections Lesson Objectives Modeling the earth Horizontal Datums: Traditionally Derived Regional Horizontal Datums Satellite Derived: World Geodetic System 1984 Vertical Datums
More informationMeasuring 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 informationGlobal Positioning System (GPS)
What is GPS? Global Positioning System (GPS) The Global Positioning System (GPS) is a spacebased satellite navigation system that provides location and time information in all weather conditions, anywhere
More informationOBJECTIVES MATERIALS BACKGROUND. Maps and Mapping. Key Terms. Common units and conversions. Introduction. Page 1 of 10
OBJECTIVES This exercise involves understanding map scale and coordinate systems. You will learn to read geographic coordinates in latitude/longitude, the State Plane Coordinate System, and the Universal
More informationNational Green Check Certified GPS Training Presentation and Learning Aid
National Green Check Certified GPS Training Presentation and Learning Aid Concept and presentation created by Bill Steer. Revised and updated by Daniel Mansfield, January 14, 2008 Canadian Ecology Centre
More informationnot to be republished NCERT Latitude, Longitude and Time Chapter 3
26 Chapter 3 Latitude, Longitude and Time THE EARTH is nearly a sphere. It is because of the fact that the equatorial radius and the polar radius of the earth is not the same. The rotation of the earth
More informationEPSG. 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 informationAn 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 informationLatitude 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 informationLab 9: TOPOGRAPHIC MAPS. I. Production of Topographic maps in the US
Lab 9: Topographic Maps 151 Lab 9: TOPOGRAPHIC MAPS Topographic maps are rich sources of geographic information. Geologic maps are commonly constructed upon topographic base maps, and much geological mapping,
More informationMAPPING FUNDAMENTALS
MAPPING FUNDAMENTALS COMPOSED AND PRODUCED BY : Chris Rule Permission is granted for use by anyone who acknowledges the author s name in their presentation. To locate a point you need to know two things:
More informationAligning Local Transverse Mercator (LTM) Grids with UTM Grids such as the Papua New Guinea Map Grid (PNGMG)
Aligning Local Transverse Mercator (LTM) Grids with UTM Grids such as the Papua New Guinea Map Grid (PNGMG) Richard Stanaway Quickclose Pty. Ltd., Box 1364, Carlton, VIC, 3053, Australia email: richard.stanaway@quickclose.com.au
More informationGPS Conversions by Lloyd Borrett (www.borrett.id.au)
GPS Conversions by Lloyd Borrett (www.borrett.id.au) There are many problems associated with locating dive sites using a GPS receiver. But first it helps if you understand the way the position is given.
More informationAn Introduction to G.P.S. Contents
An Introduction to G.P.S. Contents 1. Introduction 2. Latitude and Longitude 3. Global Positioning System 4. Navigation Options 5. Entering Data into a GPS Receiver 6. System Limitations 7. Glossary of
More informationTypes of Maps. physical map. political map. thematic map. contour map. 3Part Cards with Definitions
Types of Maps 3Part Cards with Definitions physical map political map contour map thematic map physical map political map A physical map shows an area's natural A political map shows boundaries of features
More informationThe 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 informationState 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 informationMAPPING EXERCISE Map Projections
MAPPING EXERCISE Map Projections All too often emphasis in map production is placed on becoming operational with GIS software while neglecting basic, yet important, map design principals. For many mapmakers,
More informationSurveying & 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 informationSection 1 Defining a Local Cartesian Grid
Conversion to Local Coordinate System There are many applications when surveyors need to have their own local coordinate system or make a conversion between the datum used in the project to their local
More informationTeachGIS White Paper Number 1: A Few Words on Locations, Coordinate Systems, and Projections
1 TeachGIS White Paper Number 1: A Few Words on Locations, Coordinate Systems, and Projections When we hand draw a map on the back of an envelope or a napkin, it usually doesn t matter that the position
More informationUTM, State Plane Coordinates & Map Scale. Transverse Mercator. UTM Zones. UTM Grid System. UTM Grid System. Coordinate Systems  UTM.
UTM, State Plane Coordinates & Map Scale Coordinate Systems  UTM Convenience of a plane rectangular grid on a global level A section from a transverse Mercator projection is used to develop separate grids
More informationTutorial GIS MAPPING. Can your current software do that?
CANVAS 11 GIS+ blends native support for Geographic Information System (GIS) data with the full range of illustration tools and features found within CANVAS 11 Professional Edition. This tutorial describes
More informationWhat 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 informationLatitude and Longitude Vocabulary. Equator imaginary line separating the northern and southern hemispheres.
Latitude and Longitude Vocabulary Degrees the unit for measuring distance on a map Equator imaginary line separating the northern and southern hemispheres. Globe a miniature model of the Earth Hemisphere
More informationWhat is a map? A Map is a two or threedimensional model or representation of the Earth s surface. 2Dimensional map
What is a map? A Map is a two or threedimensional model or representation of the Earth s surface. 2Dimensional map Types of Maps: (just a few that we may be using) Political Maps Shows borders of states,
More informationboundary monument A ground located structure marking an accurately surveyed position on a boundary line separating two defined regions.
aeronautical chart A chart or map used for air navigation, which provides the aircraft pilot with important information about flight paths, airport approaches and facilities, as well as landmark features.
More informationAppendix 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 informationPathAway Map Manager Table of Contents
PathAway Map Manager Table of Contents Getting Started... 2 Preparing Maps for Import... 2 Import Map Using PathAway Map Manager... 2 Calibrating Map... 5 Calibration Type:... 5 Calibration Type  Lat/Long
More informationUTM 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 informationG302 Review of Maps / Topographic Maps
G302 Review of Maps / Topographic Maps I. Introduction A. Map a 2d, scaled representation of the earth's surface, 1. Model of Earth's Surface 2. Basic functions: to represent horizontal distance, direction,
More informationOr, I m lost. How do I find my way back to the trailhead?
Or, I m lost. How do I find my way back to the trailhead? Read topographic maps Understand geographic coordinate system (Lat, Lon) Plot Lat/Lon coordinates on maps Read Lat/Lon coordinates off maps See
More informationFieldGenius Technical Notes GPS Coordinate Systems
FieldGenius Technical Notes GPS Coordinate Systems Definition of a Datum A datum is a reference coordinate system which is defined by an origin, orientation and is physically tied to the surface of the
More informationNorth Carolina Property Mappers Association. Advanced Mapping. Section 4 NORTH AMERICAN DATUMS
North Carolina Property Mappers Association Advanced Mapping Section 4 NORTH AMERICAN DATUMS 41 4.1 Datums A datum is a set of quantities used as a basis to calculate other quantities. In mapping, it
More informationThe Earth Really is Flat! The Globe and Coordinate Systems. Long History of Mapping. The Earth is Flat. Long History of Mapping
The Earth Really is Flat! The Globe and Coordinate Systems Intro to Mapping & GIS The Earth is Flat Day to day, we live life in a flat world sun rises in east, sets in west sky is above, ground is below
More informationObjectives. Geodesy, Coordinate Systems, and Map Projections
Geodesy, Coordinate Systems, and Map Projections Objectives Introduce the main concepts of geodesy coordinate systems, datums, ellipsoids, and geoids Describe map projections and coordinate systems we
More informationGeodesy 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 informationP153. NICA D.C. Al. I. Cuza University, IASI, ROMANIA
P153 CONVERSION OF COORDINATES BETWEEN THE GAUSSKRÜGER 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 informationWhere in the World is Boonville, New York?
Name: Date: Period: Where in the World is Boonville, New York? Background Information Virtually all maps have lines of latitude (called parallels) and longitude (called meridians) expressed on them. Together,
More informationProjections. 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 informationTutorial 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 informationMore About UTM. Universal Transverse Mercator UTM
Week 6 More About UTM Universal Transverse Mercator UTM Developed by US Army Corps Eng. & Defense Mapping Agency (DMA) in 1947 Originally used Clarke 1866 ellipsoid used for the U.S. (International Ellipsoid
More informationA Quick Guide to Using UTM Coordinates
A Quick Guide to Using UTM Coordinates Standing at the road junction marked with the star on the topographic map pictured above, a GPS unit set to display position in UTM coordinates, would report a location
More informationAndreas Illert Federal Agency for Cartography and Geodesy, Germany
GEODESY AND TOPOGRAPHY Andreas Illert Federal Agency for Cartography and Geodesy, Germany Keywords: Geoid, ellipsoid, map projection, control point network, global positioning system, survey, topographic
More informationAxis of a coordination grid either of the two numgber lines used to form a coordinate grid. Plural is axes.
Axis of a coordination grid either of the two numgber lines used to form a coordinate grid. Plural is axes. Base Line a line or number used as a base for measurement or comparison An average man, 6 feet
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 informationUTM: 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 informationHOW TO CHOOSE AN APPROPRIATE
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
More informationCanadian Geography Chapter 2 Beyond Your Space
Canadian Geography 1202 Chapter 2 Beyond Your Space 1 Canada 2 General Information 1. Canada has an area of 9, 970, 600 km squared. (second largest country in the world )  there are 5514 km between easternmost
More information2 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 informationAn introduction to Coordinate Reference Systems
An introduction to Coordinate Reference Systems 27/11/2009 1. Introduction A coordinate that defines a position on the Earth is ambiguous unless its coordinate reference system (CRS) is defined. This ambiguity
More informationGPS AND SECTIONAL CONTROL SYSTEM INFORMATION
CITY OF NORTH LAS VEGAS GPS AND SECTIONAL CONTROL SYSTEM INFORMATION The official coordinate system of the City of North Las Vegas Vertical Datum is the Nevada Coordinate System of 1983, and is based upon
More informationTopographic Maps. Review
Topographic Maps Review Topographic Maps Types of Topographic Maps 1:24,0007.5 minute maps 1:50,00015 minute maps 1:100,000 maps 30x60 minute maps 1:250,000 maps 1 o x 2 o degree maps 1:500,000 maps
More informationGIST 3300 / Geographic Information Systems
GIST 3300 / 5300 Geographic Coordinate System or Grid GIST 3300 / 5300 Last Time Data Classification Methods Take home point: a map is a communication medium and you as the cartographer or GIS analyst
More informationWGS 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 informationCHAPTER 1 BASICS OF SURVEYING
CHAPTER 1 BASICS OF SURVEYING 1.1 SURVEYING DEFINED What is surveying? Surveying is the art of measuring distances, angles and positions on or near the surface of the earth. It is an art? Because only
More informationToday. 03 Geodesy. Sphericity. Columbus. Eratosthenes. Pythagoras GEOG 101 8/16/16. Instructor: Pesses 1
Today 03 Geodesy Part I Introducing Geography Geography 101 Physical Geography: Earth s Surface Landscapes M. Pesses, Antelope Valley College Geodesy Land Division Geodesy ô Science dealing with the measurement
More informationLAB 1: Location & Distance on Earth
Name School LAB 1: Location & Distance on Earth Knowing that the earth is an oblate spheroid, (sphere), we can easily distinguish a specific location by utilizing a grid system much like you would use
More information