Passive vs Active Sensors in Remote Sensing
Active sensors illuminates its target and measures that reflected backscatter to the sensor. Passive sensors measure natural energy from the sun.
Author: GISGeography
We help you learn Geographic Information Systems and remote sensing
Unsigned Integer vs Signed Integer for Raster Data
Unsigned integer rasters are non-negative numbers. Signed integers can store negative values. IMG, TIFF & GRID formats are acceptable for signed integer
Top 6 Free LiDAR Data Sources
Does it feel like a big challenge to find LiDAR data sources? Master the art of attaining LiDAR at no cost with this list of 6 free LiDAR data sources.
What is ArcToolbox?
ArcToolbox is a collection of GIS tools for analyzing, editing and converting data. Each toolbox has a unique set of specialized tools for spatial analysis.
10 ArcGIS Extensions and Add-ons
The best way to boost your capabilities in ArcGIS is through extensions and add-ons. And there is a massive, growing list even from 3rd party providers.
ArcGIS Review: Is ArcMap the Best GIS Software?
In this ArcGIS review, we rank it based on analysis, cartography, editing and data management capabilities. See our full review and find out where it ranks.
What is ArcGIS? A Guide to ArcMap
ArcGIS is geospatial software to view, edit, manage and analyze geographic data and patterns. Esri develops ArcGIS for mapping on desktop, mobile and web.
What is ArcCatalog?
ArcCatalog is like a library for your GIS data. Like any good library, you can collect, store and manage your content. It’s where you write metadata too.
Ellipsoid/Spheroid – Our Oblate Spheroid Planet Earth
Reference ellipsoids (ex. Clarke Ellipsoid) are smooth, mathematical models of the Earth’s shape. It has a semi-major and minor axis flattened at the poles.
How To Use ArcGIS Desktop (ArcMap)
This is an overview how to use ArcGIS Desktop (ArcMap). We teach you the user interface, toolbars, licenses, menu bars, extensions, windows and more!