Category Archives: Data sources

What if Google decides to discontinue Google Scholar?

Since Google discontinued Google reader I have always been wondering; what if they decide to stop with Google Scholar? If you are lucky enough to have access to an university library, you should be fine. But there are also a … Continue reading

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A wealth of knowledge on biological diversity at your fingertips

I love this website of the Biodiversity Heritage Library. Through this website, a consortium of natural history and botanical libraries have made available the legacy literature of biodiversity held in their collections.

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New: Quantum map, a simplified QGIS version

An announcement on the QGIS mailing list about NIWA Quantum map made me curious. How is this going to differ from QGIS? As it turns out, NIWA Quantum map is basically QGIS with a simplified interface, i.e., it has some … Continue reading

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Poverty maps on HarvestChoice

Data on poverty levels, important for amongst others development study, yet very difficult to get. Sure, you can get global statistics from e.g., the FAO, Worldbank, here or here. But these give you highly aggregated data (mostly by country), not … Continue reading

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Update of GADM datasets

It is always good to keep an eye on your data sources if you don’t want to miss out on new versions. Like the Global Administrative Areas database (GADM), which published version 2 of their data set earlier this year … Continue reading

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New overview of free GIS datasets

Check out this link, it contains a long list with free data sources:

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Reverb; new tool on the NASA site to search, find and download data

I was looking today for the most convenient way to download the MODIS landcover data from the LP DAAC. In between the 7! different portals one would expect at least one to be easy, but it was only the 8th … Continue reading

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Online data: map of global urbanization

This is an interesting data source on urban extent I hadn’t come across yet. It is based on Modis data and available at and is described in more detail in an article by Scheider et al. (2009). Also check … Continue reading

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Visualizing confidence in data on map: example of SoilWeb Mobile

See this post for a nice example how one can display the level of confidence in the data presented for a mapping unit on a map. The SoilWeb provides the distance from the nearest map unit polygon boundary. It gives … Continue reading

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Should you georeference your scientific data?

As Jeff Thurston writes in his blog, a strong case can be made for spatially enabling scientific research. This is especially true for biological / ecological research as biological processes occur across different scales. It certainly would make it that … Continue reading

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