7 Weather Maps: How To Check the Weather in Style
As weather is location-based, GIS can deliver weather information like no other. Rain or shine, these interactive weather maps will brighten your day
Maps & Cartography
What is a Horizontal Datum Reference Frame?
A horizontal datum provides a reference frame for latitude and longitude coordinates on the Earth. A datum is constructed through surveys and triangulation.
Equal Interval Classification in GIS
The equal interval classification method divides attribute values into equal size range taking the data’s minimum and maximum values.
NAD27 – Meade’s Ranch at the Center of It All
Meade’s Ranch was the focal point of the NAD27 with all positions relative to it. First-order triangulation was used with approximately 26,000 survey points
Datum Transformations – Converting Coordinates from NAD27 to NAD83
NAD27 and NAD83 may differ in tens of meters for horizontal accuracy on location. Datum transformations correct your data from one datum to another.