What are the applications of GIS?

Source: https://gis.ny.gov/outreach/gist/win06.html

What are the applications of GIS? They’re as wide and varied as your imagination! One of the best ways to imagine the possibilities is to think of the ways you use internet mapping such as google. Applications can be as simple as viewing a map or querying it for directions to a café. Natural resource…

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Roadlessness as a Conservation Measure

In mid 2012, Google was approached by Kriton Arsenis, a Member of the European Parliament and its rapporteur on forests. He made the point that keeping an area roadless means that a territory is shielded against deforestation pressures. This provided an incentive for Google to investigate. Google buffered their road map by 10 km and…

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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, data and staff) its mostly government and large corporates that hire IT professionals. The type of work you’ll end up doing will depend mostly on…

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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 frequency and intensity in the United States shows a decrease over time. Acid rain is rain or snowfall with a pH…

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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 computerized map that’s in a coordinate system. The coordinate system allows it to be related to other GIS maps…

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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 mapped to ask intelligent questions of the scientists they’re working with, and enough about GIS to bring useful information to the them. The challenge is to…

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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 big reason for them has always been the need to understand how many people should be paying taxes and how much! These days the reasons are a little…

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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 you understand map overlay then you are a long way along the path to understanding GIS. There are a few people in the…

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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 extent of Arctic summer sea ice is almost half that detected in the late 1970s. As with any remote sensing data, the NSIDC tempered their interpretation with both…

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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 the point that as the scale of a map changes then the cartographer is faced with choices. When producing smaller scale maps (think ship-in-a-bottle) that cover large…

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