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GIS Data Sources / D. Decker (2001)

Public Titre : GIS Data Sources Type de document : Monographie Auteurs : D. Decker, Auteur Editeur : New York, Londres, Hoboken (New Jersey), ... : John Wiley & Sons Année de publication : 2001 Importance : 193 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 0-471-3555-4 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes d'information géographique [Termes IGN] bibliographie [Termes IGN] données localisées [Termes IGN] information géographique [Termes IGN] système d'information géographique Résumé : (Editeur) GIS users routinely encounter key questions about the data needed for their projects: Where did the data come from ? Is this the best data available ? How can the data be loaded to make it work ? What about creating original data ? With a broad range of GIS data options to choose from, knowing how to find, select, and use the most appropriate resources for different purposes is absolutely essential in order to keep costs down and make the most of the technology. Filled with crucial information for today's GIS users, this book offers comprehensive, straightforward reporting on GIS data sources-what they are, how to find them, and how to determine the right source for a given project. Beginning with a thorough review of the basic GIS data types and groups, GIS Data Sources shows how to define specific data needs for a project and accurately envision how the data will look and act once it is applied. The next step is to locate and obtain the data. Here the book presents a wealth of data sources, with added guidance on creating original data and important information on suitable applications for different types of data. Nutsandbolts material on data formats, media, compression, and downloading helps users acquire and use GIS data easily and avoid the technical snags that can slow a project down. Note de contenu : 1. INTRODUCTION Who Is This Book For? Why Write a Book on This Subject? What Will This Book Address? How Can We Use the Information? 2. THE BASIC GIS GROUPS GIS Components Basic GIS Data Terminology Some Notes on Scale and Accuracy Data Sources Raster Data and Images Vector Data 3. DEFINING YOUR NEEDS What Do You Need the Data to Do? Data Production Projects Summary 4. APPLYING THE DATAENVISIONING A FINISHED PRODUCT Components of Finished Data Data Packaging Data Resampling A Quick Review of the Basics 5. LOCATING DATA: THE SOURCES Federal Geographic Data Committee Clearinghouse Base Maps and the Framework Concept Metadata 6. HOW TO OBTAIN GIS DATA vs. Storage Data Storage CD-Rom and DVD Transfer: Moving Data 7. WHEN DATA DON'T EXIST, HOW CAN WE MAKE IT? Creating Your Own Data Buying or Renting Data Custom Datasets 8. KEYS TO GIS DATA SUCCESS Know Your Data Needs Put Data in Their Place Make a New Friend Bartering for Data Going Beyond GIS Software Locating the Most Appropriate Source You Can't Always Get What You Want, but You CanYou Need Start Small but Think Big You Don't Always Get What You Pay forSometimes'More (or Less) Show Off the Products 9. COMMON PROBLEMS ENCOUNTERED IN USING GIS DATA Data Age - How to Use It Properly Misuse of Proprietary Data Not Being Familiar With the Background of Your Data Data vs. Software Misapplying the Data Type vs. Format Software vs. Software Where to Get Help Combining Scales Making Immediate Assumptions 10. FUTURE TRENDS GIS Data Presentation Changes to the Internet Integration of GIS Data With Other Information Real-time Availability of Data Changes to GIS Data Numéro de notice : 11722 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Monographie Accessibilité hors numérique : Non accessible via le SUDOC Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=54478

Creating a statewide digital base map: the Texas orthoimagery program / D. Decker in Surveying and land information systems, vol 57 n° 1 (March 1997)

Public [article]  inSurveying and land information systems > vol 57 n° 1 (March 1997) . - pp 23 - 30 Titre : Creating a statewide digital base map: the Texas orthoimagery program Type de document : Article/Communication Auteurs : D. Decker, Auteur ; R. Seekins, Auteur Année de publication : 1997 Article en page(s) : pp 23 - 30 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Orthophotographie, orthoimage [Termes IGN] base de données cartographiques [Termes IGN] grande échelle [Termes IGN] orthophotoplan numérique [Termes IGN] Texas (Etats-Unis) Résumé : (Documentaliste) En novembre 1994, le "Texas GIS Planning Council" a décidé le développement d'un ortho-photoplan numérique quadrilatère à partir d'images couleur infrarouge, pour alimenter une carte de base numérique à grande échelle couvrant le Texas. Le "Texas Orthoimagery Program" a débuté en septembre 1995. Les images ont été fournies par l'USGS. Cet article décrit la démarche suivie, les outils utilisés (photographies aériennes, MNE) et le déroulement de la production. Numéro de notice : A1997-089 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=25944 [article]

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