Spatial -

NOAA Datums Videos 2014

Differential correction with NA2011 and the newest epoch of NAD83

See our and Datums Basics and GPS Tutorials for the long-awaited results of months of rigorous testing and peer review

Trimble Positions software has replaced Trimble GPS Analyst in ArcGIS 10.1

ALASKA GPS and GIS users - check out Joel Cusick's Datum and Projections presentation Feb 2013

ArcGIS 10.1 - New and Cool improvements see Presentation from Melita Kennedy, ESRI : Projections and Datums Dec 2012

Home GDB
Why Geodatabases? PDF Print E-mail

INFORMATION is the heart of a Geographic Information System (GIS).

Geodatabases store not only the locations but the facts about each location.  It is this data and its analysis that makes GIS such a powerful tool.

The advantages of a GDB for mobile computing

Mobile computing is the integration of a number of technologies and resources including

  • Mobile device
  • GPS receiver
  • Wireless communication
  • GPS data collection software
  • GIS software
  • Geospatial data

    By combining these, users are able to take portions of GIS data from the office to the field for reference or editing. New features or edits to existing features are then brought back into GIS where analysis and map products can be made.

    Mobile computing capabilities of the GDB

    While geodatabases are complex entities, this site aims to cover only components and capabilities relevant to data collection and update with the pseronal GDB (pGDB).  These are -

    • Data check-in / check-out
    • Validated data entry and editing


    Types of Resources

    For unknown territory or re-visiting fundamentals

    BASICS the essential facts to get the job done with just enough theory

    TUTORIALS step-by-step guided directions for common software

    Quick start & re-start guides

    OFFICE and FIELD GUIDE for quick reference

    TOOLS and tricks of the trade earned through experience

    LINKS recommended paths for further exploration