GIS Software
Information about GIS software including both commercial and open source GIS applications. This category covers desktop GIS (Esri’s ArcGIS suite, MapInfo, QGIS, and GRASS) as well as web mapping, mobile GIS, and component GIS.
Free GIS Applications
Listed here are applications that provide mapping and spatial analysis functionality in a no-cost software application. BASINS 4.0 BASINS 4.0 is an environmental modeling interface built upon the open source GIS MapWindow. The system contains tools to download data from the internet and can perform basic GIS functions to prepare inputs for modeling pollutant loading [...]
Explaining How Dark Sky Works
Dark Sky is a short term weather predictor protoype for iOS devices (more about the developers efforts to turn this into an app at the end of this post). Dark Sky predicts the time and duration of weather at the local level within a window of 30-60 minutes into the future. From the Dark Sky [...]
Global Navigation Satellite Systems
Few tools have helped change and improve data collection within the field of Geographic Information Systems (GIS) more than the Global Positioning System (GPS). GPS has provided data collectors in the field with a simple and efficient means of highly accurate positioning. Before GPS, GIS data logging was not a precise science, as identifying exact [...]
What is GPS?
A decade ago not many civilians had heard of a GPS, let alone seen or used one. Prior to the year 2000, Global Positioning Systems (GPS) and their receivers were expensive and largely limited in use to the military, government agencies, and specialized professions. Now, GPS receivers are commonplace and relatively inexpensive. So, what [...]