George Percivall's blog

Finding OGC WMS, WFS, WCS services

In April, Mike Botts, Botts Innovative Research, Inc. posed a deceptively simple question to an OGC discussion list:  “How does one find existing services that implement OGC Web Map Service (WMS), Web Feature Service (WFS), and Web Coverage Service (WCS) interface standards these days?”   In response to such a fundamental question came an outpouring of responses on the many ways to find OGC services. How many services do you think were identified?  

Big Processing of Geospatial Data

Geospatial Data has always been Big Data. Now Big Data Analytics for geospatial data is available to allow users to analyze massive volumes of geospatial data. Petabyte archives for remotely sensed geodata were being planned in the 1980s, and growth has met expectations. Add to this the ever increasing volume and reliability of real time sensor observations, the need for high performance, big data analytics for modeling and simulation of geospatially enabled content is greater than ever. In the

Mobile Development

"Mobile First!"  Why?  Because mobile is exploding; because mobile forces you to focus; and because mobile extends your capabilities. Take two minutes to watch the introduction of this Luke Wroblewski video.  Over the next few years, tablets will have a compound annual growth rate of 35%;  Smart phones will grow by 18% (Canalys).  Yrjö Neuvo, former Nokia CTO, predicts that by 2020, mobile users will be

Internet of Things

"The Computer for 21st Century" does not have a keyboard or a monitor.  Ubiquitous computing is arriving as the Internet of Things (IoT), transparently embedded in everyday devices in your home and in your city.   M. Weiser from Xerox-PARC in 1991 envisioned "tabs" that we would always carry, now people live and sleep with their phones.  Data for connected devices will transform society at a scale even beyond the WWW.  All devices and the data they produce will come with a location using   GPS/GNSS and soon

The Power of Location

“Location targeting is the holy grail for marketers.” This statement was directed to an entire industry at Mobile World Congress by Sir Martin Sorrell, CEO of the world's largest advertising company by revenues. While this may be a revelation of a new reality to some, the geographer reading this might be saying, "Where's Waldo?" The so-called first law of geography from Waldo Tobler is "Everything is related to everything else, but near things are more related than distant things.” This was recently validated by analysis of