Making the FanMap: Super Bowl edition

By Jim Herries, Esri Cartographic Product Engineer

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A great way to get feedback on a Web map design is to put it in front of as many people as possible and let them interact with it. This was a major motivation for a recent Mapping Center project involving cartography and American football that resulted in FanMap: Super Bowl Edition.

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Arc Hydro Tools Version 1.4 now available!

Arc Hydro Tools version 1.4 Final for ArcGIS 9.3/9.3.1 are now available for download.

Version 1.4 tools are upgraded to work with ArcGIS 9.3/9.3.1, and have added functionality to expand Arc Hydro’s  surface water modeling capabilities.

Ponded water depth, Kissimmee River

New additions include:

  • a GIS Data Exchange tool that allows the export, import and transformation of XML files,
  • Green Ampt and Time of Concentration tools to help calcuate infiltration for H & H Modeling,
  • Terrain Morphology tools to produce a more realistic model of your study area,
  • and geoprocessing tools to automate terrain preprocessing workflows.

Additions to the toolset were developed through work with users like the Southwest Florida Water Management District, to expand the functionality–so you get more bang for your buck–and to help users work more efficiently and with less headaches by using the terrain preprocessing geoprocessing tools.

We hope you find Version 1.4 useful, and welcome any and all feedback.  Arc Hydro Tools Version 2.0 for ArcGIS 10 is currently in the works, and should be released in the coming weeks.  To find earlier versions of Arc Hydro Tools, check the Arc Hydro Data Model site, or contact

To download, find the latest version here:

For more information about Arc Hydro, see the Hydro Resource Center, and for the latest updates check the Hydro Blog!

Special thanks to Caitlin Scopel for providing the post. Questions for Caitlin:

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File geodatabase API Beta 2 now available for Linux

(Update: You can find the most recent release of the File Gdb API right HERE)

We’ve added a Linux version of the File GDB API.

It is available from the same download page as the windows version.

Now developers can develop file geodatabase code on a Linux machine.

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Upcoming ArcGIS Data Reviewer for Water Utilities webinar on February 15th!

If you are a water, sewer, or stormwater utility, you may be interested in the free webinar on Feb 15th offered by Esri’s Water Practice and the Data Reviewer team. The webinar will discuss how water utilities can leverage the ArcGIS Data Reviewer extension and the Water Utility Resource Center templates to effectively integrate quality control into your GIS data creation and maintenance process, and how to ensure the accuracy of your assets.

Sign up for the free webinar here.  Also, feel free to explore the newly released Data Reviewer for Infrastructure template available on the Water Utilities and Data Reviewer Resource Centers.

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Data Reviewer for Infrastructure template released on the Resource Center!

Interested in exploring how Data Reviewer can be implemented in water utilities? Then check out the latest template just released! The Data Reviewer for Infrastructure template is a pre-configured set of Data Reviewer batch jobs (.rbj) for performing automated quality control on water, sewer and stormwater data. It enhances the Infrastructure Network Editing template and is configured to work with the local government sample geodatabase delivered in the Local Government Resource Center templates.

To learn more about how to use the Data Reviewer template for water utilities, sign up for a free webinar here on February 15th.

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February Template Updates

This week, we updated the Editing, Mobile and CIP template. There are too many changes to list here, so check out each templates release notes for a full list. I did want to highlight the new overview docs with the editing and mobile template. These documents walk through each component of the templates and discusses the configuration options for them. We also provided better comments in the configuration file. We hope this helps you configure and understand how to set up the templates with your data. We also wanted to thank you for all your great feedback. All the new functions, the bug fixes, the enhancements have been from your requests. We could not make this great toolset without you. So please, if you are having an issue, or you see an area that we could expand on, post a thread on the forum so we can discuss the enhancement request and get the communities feedback.

Water Utilities Forum

Infrastructure Editing Template for ArcGIS 10

Infrastructure Capital Improvement Planning Template for ArcGIS 10

Infrastructure Mobile Map Template for ArcGIS 10


 ArcGIS Team Water

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Celebrate Valentine’s Day with ACS Data

By Catherine Spisszak

Valentine’s Day…it’s a holiday that some Americans love and some love to hate. 

In the spirit of the holiday, we thought it would be interesting to take a look at the newly released 2005-2009 American Community Survey (ACS) data to find out where in America people are more likely to be married or single.

First, let’s take a look at a color-coded map of the percentage of the population age 15 years or older that is single – which includes those that are not married, are widowed, or are divorced.  The county with the highest percentage of singles, according to the 2005-2009 ACS estimate is Kalawao County, Hawaii where 75.6% of the population age 15 years and older are classified as single.  In Rosebud County, Montana, the percentage is much lower with 40.4% of the population classified as single.

Here is a color-coded map of the 2005-2009 ACS data on the percentage of the population age 15 years or older that is married.  Ironically, Loving County, Texas has one of the cutest county names in the U.S. and the highest percentage of population that is married, at a whopping 93.6%.

We can also use the 2005-2009 ACS data to compute a male to female ratio.  Baker County, Georgia is a promising place for single men.  There are 74.3 males for every 100 females there.  Conversely, in Lassen County, California there are 187.8 males for every 100 females.  In Love County, Oklahoma there are 95.1 males for every 100 females.

ACS Data, shown in the maps above, is released annually by the Census Bureau.  It is based on a rolling survey and has replaced the long form of Census 2000.  Now data about income, education, employment, language, migration, citizenship, marital status, and housing characteristics, such as value and rent, will be obtained from the ACS instead of the census sample.  To use data from the ACS, it will be necessary to incorporate estimates of sampling error or margin of error (MOE) which is included with all ACS estimates. 

For more information on ACS Data, please visit our Resource Center on Census 2010 and ACS Data where you can ask questions and provide feedback directly to our Data Development team.  We also encourage you to read three ArcUser Online articles written by Lynn Wombold, Esri Chief Demographer, on the topic ACS.  These articles are entitled:

Note: These maps do not include the Margin of Error (MOE) for each estimate.

Happy Valentine’s Day!

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Community Maps Program at the FedUC 2011

Fed UC Blog
The Fed UC hosted several Community Maps activities this past January at the Walter E. Washington Convention Center in Washington DC.  The Esri Professional Services group hosted a booth at the convention and two technical sessions were held by Esri employees. The booth was well attended by Federal Users and much interest in the program was discussed with agencies spanning forestry to emergency management.
Esri presented a two-part session for ArcGIS Online and Community Maps.  These sessions were presented by Esri’s Allen Carroll, Bern Szukalski, Clint Brown, Charlie Frye and Deane Kensok, to an audience of over 75 people. 
Talking with maps… Allen Carroll introduced the session, explaining how the concepts of community maps could help enable a national GIS; next Deane Kensok demoed the World Topographic basemap and described its community of contributors, and lastly Charlie Frye expanded on the potential for community maps as a means of working toward a GIS for the nation. Following the presentation there was a lively discussion; participants included representatives of the USGS National Geospatial Programs Office, Eros Data Center, and the Census Bureau. Attendees of the session seemed to be quite enthusiastic about community map concepts and potential benefits to government efforts.

Presentation Slide on Community Maps
If you missed these particular sessions be sure to check out the proceedings of the Fed UC at  Simply search for “Community” to find the sessions on the Community Maps Program.

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Integrating Large-er scale maps with ArcGIS Online Services


Integrating Larger Scale maps in ArcGIS Viewer for Flex


While conducting Community Maps client workshops over the past year I’ve had one particular reoccurring question from clients which seemed like a good topic to bring up in a Blog.

 ”How can we build and consume larger scale basemaps than the ArcGIS Online World Topographic Service in our Web-Applications (larger than 1:1,000)?”

First a brief review on the current ArcGIS Online (cached map) scales.  The current World Topographic map service for ArcGIS Online follows an industry standard tiling scheme (Google Maps and Bing) which dictates the zoom levels and coordinate system used for the cache tiles.  The tiling scheme used for ArcGIS Online and Google Maps/Bing ranges from zoom levels (0-19) or map scales 1:591 Million to 1:1,000.  See the illustration below for more detail or visit the Planning Map Cache online help here.

ArcGIS Online levels and scales

This means that the largest scale that can be cached in the World Topographic Service is 1:1,000.  However, this does not necessarily mean that a web application couldn’t consume other map services hosted by a client with larger scales cached in a similar tiling scheme!

I recently met with Derek Law, the Esri Product Manager of the ArcGIS Viewer for Flex to discuss this very matter.  He was intrigued to hear this user request and stepped in to provide the following instructions for integrating multiple map services in the ArcGIS Viewer for Flex.

Instructions for implementing two (2) map services with different cache scales in the ArcGIS Viewer for Flex

The ArcGIS Viewer for Flex is a released ready-to-deploy viewer application. It is configurable, so you can easily add tools and data content without programming. You can also extend its functionality with custom widgets available from the Esri community, or create custom widgets yourself with the ArcGIS API for Flex.  To get started, the viewer can be downloaded at this link.

The Viewer’s map scale level is determined by the first basemap layer that is loaded into it; this is the first layer that is specified in the application configuration file (e.g., config.xml) with a <layer> tag. Subsequent layers that are added to the viewer will confirm to the map scale level set by the first basemap layer.

In some instances, you may want to include more levels of detail (LOD), for additional map services that contain more detailed information than the first basemap loaded into the Viewer. These LODs would be at a finer (i.e., greater) resolution than the highest map scale set by the first basemap. This capability can be enabled by editing the Viewer’s application configuration file.

map service 1 (Hosted on ArcGIS Online) – City level data, cached map service (1:1,000 to 1:9,000 scale levels)
map service 2 (Hosted by Client) – City Block level data, cached map service (1:500 to 1:250 scale levels)

By default, the Viewer’s application configuration file (config.xml) would look something like this:

<map initialextent=”-14083000 3139000 -10879000 5458000″ top=”40″>


            <layer label=”Streets” type=”tiled” visible=”true”                       url=” service 1″/>



In which case, the Viewer’s map scale level would be set from 1:1000 to 1:9000 scale levels. Now, if you wanted to include more LODs by adding map service 2, you would use the <lods> tag, like so:

<map initialextent “-20037507.067168 -20037507.0671618 20037507.0671618  20037507.0671619″ top=”40″>


            <layer label=”Streets” type=”tiled” visible=”true”                        url=”” displaylevels=”8,9,10″ />



<lods><!– show levels that you want to see on Navigation Slider–>

        <lod resolution=0.0439453125" scale="18468599.9106772"/>

        <lod resolution=”0.02197265625″ scale=”9234299.95533859″/>

      <lod resolution=”0.010986328125″ scale=”4617149.97766929″/>



The resolution and scale attributes of the <lods> tag can be determined from the REST Endpoint:

Open this link in browser:

Copy paste levels of display from:

  • Levels of Detail: (# Levels: 9)

Resolution: 156543.033928
Scale: 591657527.591555

Resolution: 78271.5169639999
Scale: 295828763.795777

Resolution: 39135.7584820001
Scale: 147914381.897889

Resolution: 611.49622628138
Scale: 2311162.217155


View from REST Endpoint for Levels of Detail

These instructions are specific for the ArcGIS Viewer of Flex, however if you need assistance with a similar situation for another ArcGIS API such as JavaScript or Silverlight send an email to and I can direct you to the appropriate product specialist.

For more information on the ArcGIS Viewer for Flex or other web API’s be sure to check out the Web Resource Center at the following link for further information.

Written by:  Seth Sarakaitis



Posted in Community Maps | 1 Comment

File Geodatabase API download updated – Beta 2

(Update: You can find the most recent release of the File Gdb API right HERE)

We’ve updated the download for the File Geodatabase API.

Along with it’s beefier physique, the Beta 2 download has the following new features: Continue reading

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