ArcGIS Resources

You can use these downloads to create your own cartographic effects. Note that clicking on any heading will sort the table contents.

Name Description
DEM Data Sources Table

Download a table that gives you basic information about a number of widely available digital elevation models (DEMs):

  1. Their name.
  2. Geographic extent.
  3. Date of publication.
  4. Source.
  5. The spatial resolution of the DEM.
  6. The ground resolution of a DEM cell at the equator.
  7. In most cases, a website where you can learn more about the data and how to download all or part of the DEM.
  8. And, perhaps most importantly, the maximum advisable map scales that the DEM should be used for.
Coordinate Systems Decision Tree Download a decision tree that you can use to help troubleshoot problems you might have when your data doesn't line up in ArcGIS.
Geographic Transformations Download a table that gives you information about geographic transformations that are supported in ArcGIS 10.
Projected Coordinate Systems Follow this link to find details about the projected coordinate systems, map projections, parameters, and linear units of measure used with ArcGIS. One of the great things about this document is that it tells you the correct area of use for each projected coordinate system. This is also available in the ArcGIS for Desktop installation directory, typically, C:\Program files\ArcGIS\Desktop10.0\Documentation. It is called projected_coordinate_systems.pdf.
Geographic Coordinate Systems Follow this link to find details about the geographic coordinate systems, datums, spheroids, prime meridians, and angular units of measure for the projections used with ArcGIS. This is also available in the ArcGIS for Desktop installation directory, typically, C:\Program files\ArcGIS\Desktop10.0\Documentation. It is called geographic_coordinate_systems.pdf.
Conversion Constants Follow this link to find easy-to-calculate formulas to convert field values between different types of units.
Functionality Matrix for ArcGIS 10 Click this link to open the Functionality Matrix PDF for ArcGIS 10.
Functionality Matrix for ArcGIS 9.3 Click this link to open the Functionality Matrix PDF for ArcGIS 9.3.
ArcGIS for Desktop Tips Follow this link to find a selection of time-saving tips and keyboard shortcuts for ArcGIS for Desktop.
Designing Geodatabases: Chapter 8 Basemaps require a data model that supports the generation of high-quality digital cartographic products with varying levels of detail for a desired range of scales. Basemaps provide a framework for GIS data use and analysis, and commonly used GIS data from many themes may be combined with cartographic attributes to build the base map. This chapter presents a case study for a topographic basemap at 1:24,000 scale, building on the work in progress on the Texas Natural Resources Information System (TNRIS) in Austin, Texas.
Basemap Data Model In every GIS project, there are many layers that serve as the basemap. These layers provide context for multiple GIS workflows, such as editing data or producing cartographic products. Basemap layers include themes such as hydrography, physiography, boundaries, transportation, cultural features, and elevation. You will find features such as these on topographic maps. Other maps may use some or all of these features as the geographic base for showing operational layers, such as soils, geology, zoning, and utilities. Many of these same layers also appear in maps that overlay satellite imagery or orthophotography. Detailed instructions for modeling, symbolizing, and labeling many of these layers are provided on the Esri Mapping Center website.

The basemap model represented here is one that would commonly be used for topographic maps. The addition or exclusion of layers allows it to be modified to produce various types of maps. The intent of this model is to provide a clear approach for implementing, managing, and creating maps using these basemap layers.

In particular, this work was done as a case study at Esri using the Texas Natural Resources Information System's (TNRIS) data. The goal was to create a multipurpose basemap to demonstrate best practices for topographic map production using GIS.

Downloads from the basemap data model web page include

  1. Topographic Basemap Database Schema: Layers and style for ArcGIS 8.3; ZIP (843 KB) (submitted 02/28/2003)
  2. ArcGIS 1:24:000 Scale Basemap Data Model Poster: PDF (11.8 MB) (submitted 08/18/2004)
  3. Global Map Data Model Poster: PDF (854 KB) (submitted 05/01/2003)

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