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Dr Mike J Smith
Kingston University

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January
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6


       

Surface Roughness of Topography: A Multi-Scale Analysis of Landform Elements in Midland Valley, Scotland
C.H. Grohman, M.J. Smith and C. Riccomini Proceedings of Geomorphometry, 140-148 In this paper we briefly review a selection of measures of surface roughness, with specific application to grid based digital elevation models (DEMs). A selection were assessed for the behaviour of roughness at different spatial scales and dataset resolutions using moving-window and raster algebra steps to a test area in the Midland Valley, Scotland.

posted on: Wed, 06 Jan 2010 | path: /publications/proceedings | permanent link to this entry

Map-OSM-atic
Great automated service for creating a town plan and index over at MapOSMatic using OpenStreetMap data. The site developed out of Hackfest2009 and is based upon the entire worldwide OSM data using the default OSM stylesheet. A really useful service. If your map doesn't already exist (and there currently doesn't appear to be a search engine for existing plans) then you can define a bounding box around your town of interest and queue it for processing. The queue is currently around 200 maps which seems to take about 24 hours to process, but of course it depends upon the complexity of the jobs. Outputs are PNG, PDF and SVG.

posted on: Wed, 06 Jan 2010 | path: /GIS | permanent link to this entry