
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...
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 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...
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.
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...
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...
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...
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 a Geographical Information System? There is a fantastic post about cartographic scale on the National Geographic site. The article makes...
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 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...
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 (QGIS) – its a brand of Geographical Information System that is Open Source and so free. Its been around since around 2002 and...
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 is an important geography career! Most countries around the world conduct a regular National Census. Censuses date back to biblical times. A...
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...
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,...
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...
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...
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...
Points, Lines, Polygons, and Polylines in a GIS are dumb graphics. We make them intelligent by attaching attributes to them. That way we can tell that a point is a rubbish bin...
Utility mapping for the water industry. The location of buried water pipes is important Geographic Information Systems are one of the most rapidly growing technologies in the...
Question: Why do we need Geographic Information Systems like Quantum GIS, ArcInfo, ArcView, MapInfo, Caliper software, GRASS and Manifold? The answer: In this Introduction To...
SQL for GIS Table Query – Introduction Structured Query Language (SQL) is a very common, very generic language in computer systems. It has implementations in lots of...
Geographic Information Systems (GIS) are designed to gather, store, and analyze geographical data. Geographic data may include things like natural resource maps, planning...
In the event of a power outage, you want to know that your utility company is working hard to restore power. Depending on the cause for the outage, it may last for a few...
GIS Software Improvements: Summary Mappable information such as customer addresses and vehicle locations used to be considered relatively unimportant information. These days,...
Site Selection Process for Green Energy: Introduction One of the most important things affecting the world today is conservation. Although environmental conservation is very...
GIS technology is a useful tool for natural resource management. Geographic information system (GIS) technology can be used to gather, maintain, analyze and store geographic...