About two months ago we introduced ArcGIS Open Data in beta, and on July 10th we deployed our first release to production which is now localized in 24 different languages. Since then there have been over 600 open data groups created in ArcGIS Online and many open data … Continue reading
Based on user feedback, exciting new changes to Data & Maps will include: Ready-to-use layers that you can easily use in ArcGIS Online and in your applications, Current, maintained layers, Layers of geographic interest to international organizations; United States boundaries … Continue reading
Posted on behalf of Shaun Walbridge, Esri Help us set the direction for the Arc Marine data model by sharing information about how you use and manage your marine data. In April, we started a discussion with a webinar to … Continue reading
On April 2, 2013, an informal working group of twenty-five (including four Esri staffers) participated in a 1.5-hour webinar to discuss the development of a new, improved version of the Arc Marine Data Model (also known as the “Marine Data … Continue reading
by Robert Kimball and Paul Reig, Aqueduct Project, World Resources Institute Water is not just an environmental issue – it has the power to create risks and opportunities that can impact companies, investors, and entire economies. Further proof of this … Continue reading
With the newly elected 113th United States Congress starting its term, Esri is pleased to offer the new USA 113th Congressional Districts dataset and map service to all ArcGIS users.
On Thursday afternoon 6 September 2012, the 150 seat Lecture Theatre 2 at Victoria University of Wellington’s Pipitea Campus was full to overflowing with policy analysts, people who work with statistics and spatial data, students and people interested in a presentation which explored the design principles for statistical mapping. Continue reading
Download PPTs, exercises, and data/maps for the Methods for Visualizing Space-time Data and Using and Creating ArcGIS Basemaps workshops presented at the 2012 Education UC. Continue reading
We are pleased to announce that the new 2010 U.S. Census datasets with their new geometry and attributes are now available as layer packages on ArcGIS.com. Block Group, Tract, County, and State are all represented as polygons with over 40 attribute fields containing population totals by age and race, along with family and household information. Census Blocks are represented as points with total population and household information.
Average family size by Block Group
Visit the Esri Data & Maps United States Census page on the ArcGIS Content Resource Center for a list of all the census layers available for download on ArcGIS.com.
One of the most common problems that can occur when working with vector data is maintaining coincidence.
Maintaining coincidence between adjacent polygon features is important when modeling real word information in a GIS. There are a number of tools in ArcGIS 10 for Desktop that allow users to edit and create features that share boundaries, thus helping to eliminate gaps, slivers, and overlaps.