The latest outputs from researchers, alumni and friends at the UCL Centre for Advanced Spatial Analysis (CASA).
The A to Z is a bit of an institution when it comes to London maps. It, along with the Tube Map, is probably the most famous and well known London map, and certainly the most famous atlas. We’ve reviewed a historic A-Z map of London before, but n…
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Below are maps showing how the population change in London between 2001 and 2011 differs depending on the age range and gender. Swipe across each image to see how the male and female population change differs across London’s Boroughs. Here…
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The simple answer to this is they never existed. The reduction seen across much of England and Wales in the population of the 30 to 44 age range between 2001 and 2011 is a consequence of the low birth rates…
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Following on from my previous post I thought I would look at London in some more detail. In the ten years between 2001 and 2011 every borough’s population has increased – with the exception of Kensington and Chelsea. The breakdowns…
Continue reading »Creating a new Output Area Classification.
Chris Gale, UCL Department of Geography.
To download a PDF of the seminar please click here.
To download a PowerPoint Slide Show of the seminar please click here.
Abstract.
The current Output Area Classif…
In a previous post I talked about the Index of Multiple Deprivation (IMD) in London, and how a “standard” representation only reflects the geographical reality of the land. By utilising a cartogram tool this potential issue can be overcome by rescaling each areal unit by its resident population, for the IMD I used mid-year population estimates available from the Office for National Statistics at Lower Layer Super Output Area (LSOA) level. To add a layer of context to the previous maps, I have constructed cartograms for London to illustrate the change in population between 2001 and 2009. I have used 2001 census data along with 2009 mid-year population estimates to calculate the percentage change for each of the 24,140 output areas (that contain on average 250 individuals nationally) that make up Greater London for the age ranges: 0-4, 5-14, 15-24, 25-44, 45-64 and 65 and over. To create the cartogram aspect of the maps I have used the total population of that particular age range in 2009 to rescale each areal unit. I have also produced the same population change maps using the “standard” representation of London to allow comparison with the cartograms. The results of this can be seen […]
Continue reading »Temporal dimensions are only visible as fractions and over a very small scale. There are very clear limitations to the recognition of temporal changes to the human senses. This ranges from about 18 frames per second to the movement of a snail. Everythi…
Continue reading »Temporal dimensions are only visible as fractions and over a very small scale. There are very clear limitations to the recognition of temporal changes to the human senses. This ranges from about 18 frames per second to the movement of a snail. Everythi…
Continue reading »The Index of Multiple Deprivation (IMD) is a measure of the “deprivation” of any given area. A combination of indicators covering a range of economic, social and housing issues, allow for a single deprivation score to be constructed, and these scores are then ranked. The data for the 32,482 Lower Layer Super Output Areas (LSOAs) that make up England was released in March 2011 for the 2010 IMD. This showed the rank of each LSOAs deprivation, ranging from 1 to 32,482. Fortunately due to a similar methodology being used to construct the 2010 IMD, it possible to compared it with the previous IMD released in 2007. Instead of focusing on a national scale I have re-ranked the data for London’s 4,765 LSOAs for both the 2007 and 2007 IMDs. Each of the 4,765 LSOAs have had their new ranks split into deciles, which is what is displayed on the maps below. This means there are roughly 476 LSOAs in each decile, or one tenth of all the areas in the dataset. Move your mouse over the picture, to swipe between the 2007 and 2010 London IMD. Show dividing line? I was inspired to use the “scrubber” technique by Oliver O’Brien, […]
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