GIS

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Remote Sensing

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GPS

  • Using GPS for Art8

    Using GPS for Art

    Tribute to my grandfather @wally GPX Ever thought of your local city as a canvas for Art? Michael...

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Other News

  • GIS Quantum GIS tutorial

    Quantum GIS tutorial

    Announcing a new Quantum GIS Tutorial. In 2 1/4 hours of video and more than 7000 words of text, I show you how to download and install, and open, navigate and interpret GIS maps. I have wanted to teach an introductory Geographical Information Systems course for years. A fully multi-media web based course was too difficult to teach until recently, but a perfect storm of computer hardware, internet infrastructure and stable open source GIS software has changed all that. The result is the QGIS for Newbies eCourse.

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  • Remote Sensing Using Remote Sensing for Arctic and Antarctic Sea Ice Change Detection

    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 sensed data, the NSIDC tempered their interpretation with both an understanding of the sensor’s limitations, and the nature of the Sea Ice itself. In this case, they understood that error could be introduced by […]

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  • GIS How important is the scale of a map?

    How important is the scale of a map?

    By Ian Allan What determines the scale of a map ? I was just reading a great post about cartographic scale from the National Geographic site and thought I’d write a short post about it myself. 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 bottle) that cover large areas, map making becomes particularly difficult because things need to be left out. […]

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  • GIS What are the careers in Geography

    What are the careers in Geography

    What are the careers in Geography? One of them is the GIS analysis of census data. There has never been a better time to think about this as a career because the most countries will be drip-releasing the latest census throughout 2012 and 2013.

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  • GIS Maps that Lie! A HIV-AIDS example

    Maps that Lie! A HIV-AIDS example

    AIDSvu.org has a web application that allows you to view aids information for the United States on a map. However, you need to be careful when comparing the maps. As is often the case with mapping projects such as this, the color scheme of the maps is misleading.

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  • GIS What is a GIS map

    What is a GIS map

    A GIS map has two important features – a coordinate system and a database. These allow each of the three map feature types to be analysed.

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  • GIS Roadless as a conservation measure

    Roadless as a conservation measure

    Recently, 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.

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  • GIS Public Health Map Used To Stem Cholera Outbreak

    Public Health Map Used To Stem Cholera Outbreak

    The 19th Century doctor, John Snow, was one of the fathers of GIS. He used a hand-drawn public health map to stem a cholera outbreak.

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