June 2015 - GIS Geography

Magnetic North vs Geographic (True) North Pole

The Magnetic North Pole is a point in Northern Canada where the northern lines of attraction enter the Earth. Compass needles point to the magnetic north.

GIS Analysis

What is Map Algebra? [Raster Math]

Map algebra is a cell-by-cell combination of stacked raster grids. It uses math-like functions with arithmetic, statistics and trigonometry operators.

Landsat Program: 40+ Years Archive of Earth

Imagine being able to rewind forty years back in time. For any given place and time. Then, see how much it’s changed. You can through the Landsat Program!

Latitude, Longitude and Coordinate System Grids

Latitude lines run east-west, are parallel and go from -90 to +90. Longitude lines run north-south, converge at the poles and are from -180 to +180.

Smallworld by General Electric (GE)

GE has a long, successful track record in utilities and network infrastructure. Because of this, Smallworld has value-added tools specifically for networks.

Manifold GIS Systems: Software Review

Manifold GIS has more or less the full capabilities of the bigger GIS software suites. But the key is their emphasis on speed and keeping a lower price tag.

GIS Dictionary – Geospatial Definition Glossary

From A to Z, we deliver stunning visualizations and meanings with the GIS Dictionary – Definition Glossary. Sharpen your skills with new GIS terminology.