ArcGIS Shapefile Files Types & Extensions
ArcGIS shapefile files are composed of mandatory files (SHP, SHX and DBF) and optional files (PRJ, XML, SBN and SBX). This article lists their functions.
Author: GISGeography
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USGS Earth Explorer: Download Free Landsat Imagery
The USGS Earth Explorer is quick and easy to download free Landsat imagery & other remote sensing data. Enter ROI, define timeline and download for free.
Spatial Autocorrelation and Moran’s I in GIS
Spatial autocorrelation helps us understand the degree to which one object is similar to other nearby objects. Moran’s I is used to measure autocorrelation.
ArcGIS Projections: “Define Projection” and “Project”
For ArcGIS projections, “define projection” changes the metadata of the current projection. The “project” tool changes the projected coordinate system.
Oil and Gas Industry: How to Use GIS
Remote sensing, geodatabases and automation can play a key role in cost-effective and timely information for using GIS in oil and gas industry.
OBIA – Object-Based Image Analysis (GEOBIA)
Object-based Image Analysis (OBIA) segments an image by grouping pixels together into vector objects. Using these objects, you classify as land cover types.
13 Open Source Remote Sensing Software Packages
There is an abundance of choice for open source remote sensing software. This list of 13 free applications describes what each one brings to the table.
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
GIS Certification: Is It Worth It?
The two primary GIS certification types are the GISP and Esri Technical certification. But is it worth the time, effort and money to get a GIS certificate?
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.