Data Input Techniques in GIS
Introduction In this blog post I’ll give you an overview four data input techniques in GIS (ie. four ways to create a GIS map). There are Four Data Input Techniques in...
GIS for Beginners #2: Learn Map Digitization using QGIS
This is my complete digitizing course for QGIS. I show you how to Convert a Paper Map into a QGIS Map Using Equipment Every Office Has.
GIS Analyst – What Does One Do?
What is a GIS Analyst? In other posts I’ve talked about the many aspects of GIS, particularly the technology, issues with data, and the way GIS technology is used. In this...
The Case for the GIS Analyst
The GIS Analyst sits somewhere between the professional with problems that need to be mapped and GIS Professionals. A GIS Analyst needs to know enough about the problem being...
GIS for Beginners #1: QGIS Orientation
This is my complete introductory course on on Quantum QGIS. I show you how to install QGIS, find your way around the interface and how to shade a GIS map. Its a fantastic...
GIS in Agriculture – Two important uses
GIS in Agriculture: Introduction Farming is more sophisticated now-days than it ever was. Good farmers do lots of planning and analysis. Information like soil type, soil...
Whats in a Resume?
Attention All Recent Graduates. Do you want to learn how to get your first job? Gain insights into what’s in a resume, what’s in a resume cover letter, what’s in a resume...
GIS for Beginners #3: Spatial Analysis using QGIS
This is my "Bare Essentials of Spatial Analysis" course. Learn how to…create a GIS buffer, compare two GIS maps, perform a simple database query, create geographical subsets...
Raster vs Vector GIS
Raster vs Vector GIS – Introduction Raster Geographical Information Systems and vector Geographical Information Systems operate differently and are used to address...
The Importance of Data Currency and Data Consistency
For Attribute data, Data Currency and Data Consistency are very important concepts. When you’ve finished reading this post you’ll understand that you can’t just pick up...
QGIS vs ARC GIS
When choosing a GIS both Arc and QGIS are similarly functional. For most people, the choice between the two will boil down to personal preference and price.
How to Overlay Maps
In the video I tell the beginning of the story of how to overlay maps. I’ll demonstrate one of the earliest examples of the strategic use of map overlay in planning. If...
GIS Data Sources – Map Archives and Old Reports
Its not always possible to get all the data you want for your project off-the-shelf. Archives and Old Reports are one of a number of incredibly important GIS data sources. In...
QGIS for Beginners #4: Geocoding using QGIS 3
Do you want to learn geocoding from scratch, step-by-step, using QGIS 3? I have over 5000 students enrolled in my three “GIS for Beginners” QGIS tutorials on Udemy. This...
Lets Define GIS – Two GIS Applications Examples
Lets define GIS There are many ways to define GIS …and by GIS I mean a Geographical Information System. GIS combines spatial data (maps), temporal data (when things on a map...
What is a GIS map?
Map 1: What is a GIS map? A GIS map contains points, lines and polygons What is a GIS map? Its a digital map that has two important features… Coordinate system: A GIS map is a...
What determines the scale of a map in GIS?
What determines the scale of a map in a Geographical Information System? There is a fantastic post about cartographic scale on the National Geographic site. The article makes...
Using Remote Sensing for Arctic and Antarctic Sea Ice Change Detection
Using 25km daily remote sensing grid cell data from a satellite mounted microwave sensor, National Snow and Ice Data Centre (NSIDC) scientists have shown that the minimum...
Choropleth Map Data Classification
Choropleth Map Data Classification A Choropleth Map is also known as a Shaded Map and a Thematic Map Today, I am going to talk about Choropleth Map Data Classification. This...
Mapping Links Pollution to Regulation
Map 1: The earlier of two images on acid rain – 1985 Map 2: The latter of two images on acid rain – 2008 Time-series GIS mapping of a 25 year study of acid rain...
What is Quantum GIS
What is Quantum GIS What is Quantum GIS (QGIS) – its a brand of Geographical Information System that is Open Source and so free. Its been around since around 2002 and...
What is GIS used for? Here is ten things
Geographic information system (GIS) technology can be used for a wide variety of applications. GIS can gather, manipulate, store, and analyze geographic data which makes it...
What is Spatial Data
What is Spatial Data The four simple map structures in a GIS are Points, Lines, Polylines and Polygons. If you were to on-screen digitize the figure above then each of the...
Analysis of the census using GIS
Analysis of the census using GIS is an important geography career! Most countries around the world conduct a regular National Census. Censuses date back to biblical times. A...
Roadlessness as a Conservation Measure
This analysis of road patterns as a surrogate for land conservation is just one of many uses of GIS. In mid 2012, Google was approached by Kriton Arsenis, a Member of the...
Digital Map Products and the GIS Revolution
A typical map storage facility. This one is from the US Library of Congress (photo Beatriz M Haspo, 2011) There will always be a place for paper maps because sometimes...
GIS in IT
The role of GIS in IT is as varied as the organizations that use GIS. Because there are such high upfront and ongoing costs to implementing a GIS (hardware, infrastructure,...
Using GIS Technology for Improved Government Operations
Geographic information system (GIS) technology can be used to gather, maintain, store, and analyze geographic information. It can be used to keep track of everything from...
GIS Metadata – The 5Ws
Have you ever wondered how GIS Analysts work their way through thousands of files of data? How do they manage to extract information about certain locations and their...
Select The Right GIS Course And Avoid These 4 Mistakes…
How to select the right GIS course for you So here you are, interested in enrolling into a GIS course. Maybe you are a student, or an industry professional, or maybe you are a...