Articles

How to Select Ridgelines From a DEM Using Spatial Analyst

Caitlin Dempsey

Selecting out ridgelines from a DEM using ArcView 3x’s Spatial Analyst extension is pretty straightforward. These steps assume the initial ...

What is Open GIS?

Marco Morais

Open GIS is the full integration of geospatial data into mainstream information technology.

Mapping the Earth – the Shuttle Radar Topography Mission

Caitlin Dempsey

Space Shuttle Endeavour lifted off on February 11, 2000 and one of its missions is an ambitious mapping of the earth.

How to Convert .e00 Files to Coverages With ArcView 3x

Caitlin Dempsey

To convert .e00 import files to coverages on a Windows operating system with ArcView installed, follow these instructions.

Bothriocyrtum californicum (California Trapdoor Spider). Photo: Davefoc, MediaWiki Commons, CC BY 3.0

Biogeography of the Californian Trapdoor Spider

Caitlin Dempsey

Californian trapdoor spiders are found in a wide range of habitats and climates, ranging from hot, dry cresote bush scrub to cool montane red fir forests, and wet coast redwood forests.