Tag Archives: ecology

QDGC-files updated

The Quarter Degree Grid Cells (QDGC) data set has been updated. It is well over a year since last time. Some errors in the current release has made this necessary. One of the things which kept me from doing the … Continue reading

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QDGC shapefiles available for national and continental scale distribution

A new set of the Quarter Degree Grid Cell shapefiles has been generated. The update is global and delivers an error fix for the country level files as well as a new product – continent level files. The QDGC shapefiles … Continue reading

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Elevation model, climate change and fresh water ecology…

A Digital Elevation ModelĀ (DEM) is a data set containing information about a terrains surface. In its most basic form it is a collection of geographical positions with associated elevation information. With this information it is possible to make visualizations or … Continue reading

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