The latest outputs from researchers, alumni and friends at the UCL Centre for Advanced Spatial Analysis (CASA).
The European Union JRC recently released a new 2023 update of the Global Human Settlement Layer (GHSL) data. This update has greatly improved the GHSL data, with a 10m scale built-up area dataset of the entire globe which has been used to create a 100m scale global population density layer. The level of detail for … Continue reading World Population Density Map Update with GHSL 2023
Continue reading »I have a new paper published in Computers Environment and Urban Systems- Online interactive thematic mapping: applications and techniques for socio-economic research. The paper reviews workflows for creating online thematic maps, and describes how several leading interactive mapping sites were created. The paper is open access so you can download the pdf for free. The paper…
Thanks to invitations from UNIGIS and from Edinburgh Earth Observatory / AGI Scotland, I had an opportunity to reflect on how Geographic Information Science (GIScience) can contribute to citizen science, and what citizen science can contribute to GIScience. Despite the fact that it’s been 8 years since the term Volunteers Geographic Information (VGI) was coined, […]
Once upon a time, Streetmap.co.uk was one of the most popular Web Mapping sites in the UK, competing successfully with the biggest rival at the time, Multimap. Moreover, it was ranked second in The Daily Telegraph list of leading mapping sites in October 2000 and described at ‘Must be one of the most useful services on […]
A team of geographers at University College London, led by Prof. Paul Longley and Muhammad Adnan have created a map of the most popular surnames around Britain. http://bit.ly/17NZHcD The map shows the distribution of the top three surnames by area using … Continue reading →
Continue reading »In March 2008, I started comparing OpenStreetMap in England to the Ordnance Survey Meridian 2, as a way to evaluate the completeness of OpenStreetMap coverage. The rational behind the comparison is that Meridian 2 represents a generalised geographic dataset that is widely use in national scale spatial analysis. At the time that the study started, […]