September, 2014


GIS Data

Global fossil fuel CO2 emissions as represented by the Fossil Fuel Data Assimilation System (FFDAS).Global fossil fuel CO2 emissions as represented by the Fossil Fuel Data Assimilation System (FFDAS).

Mapping Global Carbon Dioxide Emissions

Researchers recently published the results of developing a system for measuring global carbon dioxide (CO2) emissions in the Journal of Geophysical Research.  Named “Fossil Fuel Data Assimilation System” or FFDAS, the system is able to quantify at the city level fifteen years of CO2 emissions from 1997 – 2009.  The research represents […]

GIS Learning

Presentations from OSGIS 2014 Now Online

Presentations from OSGIS 2014 Now Online

All recordings from the recently held OSGIS 2014 are now available online.  Themed, “Building up Open Access, Open Education and Open Data for Open Science”, the fifth open source GIS conference is part of the  “Geo for All” initiative.  The conference featured keynotes by Professor John Wood (Secretary General, Association of Commonwealth Universities), Karen Parkin […]

GIS Data

Landsat-derived forest disturbance rate (stand replacing), 1990-2000, aggregated to 500m grid. Source: NASA.Landsat-derived forest disturbance rate (stand replacing), 1990-2000, aggregated to 500m grid. Source: NASA.

Mapping Forest Disturbance with Landsat

The Landsat Ecosystem Disturbance Adaptive Processing System (LEDAPS) takes advantage of the 30 year Landsat archive to inventory recent disturbances and forest-cover change. Using mid-summer, cloud free Landsat data from the Global Land Survey (GLS) project, LEDAPS first corrects the images to remove atmospheric effects from surface reflectance (source code for LEDAPS) before applying […]