četvrtak, lipnja 26, 2014

Mobile GIS

Mobile technologies keep growing in capabilities, diversity and availability by the week.  The decreasing prices of mobile devices and mobile services, better coverage and new software have made it one of the most dynamic services today - so no wonder that mobile GIS applications are getting more and more popular, both in the professional world and with the average outdoor enthusiast.

Being free from desktop hardware has many advantages. The user can easily use relatively cheap smartphones or tablets to access maps, collect and report data and even perform analysis. The software client interface is usually simpler, the costs of data collection can be greatly reduced and the data can be quickly synchronized with the client’s servers.



However, mobile technology has some drawbacks as well. The small screen size of smartphones, short battery life, limited keyboard functionality and limited processing power are some of the most common shortcomings of mobile GIS.

Nevertheless, most professional GIS software companies, such as ESRI and Google, are investing in this quickly developing market, constantly developing their mobile and online services. But there are also many start-ups and web communities that are developing their own mobile GIS solutions, that may be more easily adapted to personal users or small business needs. There are services that are available online and offline so not even a remote location is out of reach.



utorak, lipnja 10, 2014

ArcGIS Online, a map service for everyone

While working on the latest module of the UNIGIS master course, I am beginning to get acquainted with various online map services. One of the more interesting ones is the ArcGIS Explorer Online, available at http://www.arcgis.com/explorer.

The website offers many interesting user-made theme maps, such as World AIDS Day Map, Import and Export of Plastic Waste, Forest Areas in Europe, etc. These maps can serve as a good starting point or illustration for a student investigation or visual information for the interested public.

ArcGIS Explorer Online

But the real benefit of this map service is the ability to create (and publish) one’s own theme map. The ArcGIS Explorer offers base maps where a user can easily add information of interest, explore overlays and see associated data. You can look for information shared by other users based on keywords, import your own data or use your previously stored information. 


 Add Content in ArcGIS Explorer Online

In this way, the user can explore publicly available or personal data without the need for a professional and expensive software, and what is more, share this information with people he/she chooses or publish it for everyone to access.

For example, I investigated the occurrence of wildfires in the United States and produced a map that can be accessed here. It is fun and easy, really a tool for everyone.



An example of a completed map using public information of wildfire in the USA

And all you need is internet access and some imagination…
I may not have gone where I wanted to go, but I'm sure I ended up where I needed to be.