ArcWatch: GIS News, Views, and Insights

November 2012

Bug Wars

By Mike Schwartz
Esri Writer

With the motto "Map, Track, and Attack," a suite of Esri-based software applications called Sentinel GIS is helping the San Joaquin County Mosquito and Vector Control District in California's Central Valley better manage mosquito control treatment, surveillance, and work orders.

Mosquito-borne diseases pose a major health hazard worldwide, including in the United States. The Centers for Disease Control and Prevention reports that the number of cases of West Nile virus exceeds 5,000 so far this year for people in the United States.

The district's mosquito control technicians use GIS in many ways, including to monitor the locations of mosquito populations and to keep track of where they use pesticides. The software also warns the workers about what areas to avoid, such as organic farms and beehives.

And when they return to the office, they can transfer the mosquito surveillance and treatment data that's on their mobile device into GIS desktop software. Read the article.

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GIS helps manage many aspects of the work that's done to control mosquitoes, which carry many deadly diseases.

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Tip of the Month

Learn How to Create a Map Topology in ArcGIS 10.1

When editing map data, you often will have features that share boundaries. Editing with topology can reduce the chance of introducing inadvertent gaps or overlaps between features that share geometry. Read this tip.

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ArcWatch is published monthly by Esri and contains GIS news, practical advice, and updates about the company's software and events. To submit article ideas, e-mail editor Carla Wheeler at

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