Animated Tornado Density Map

Density of Tornado Tracks within a 41km search radius and population of large cities (blue bars). Data from National Weather Service (2012) http://www.spc.noaa.gov/gis/svrgis. Student work by Amy Harris, submitted for MSc modules in GIS and Hazards, Kingston University London.

GIS in Action Video

A short promotional film of geovisualations by GIS staff and students in the School of Geography, Geology and the Environment, Kingston University London.

The Age and Geographical Bearing of Mammalian Evolutionary Relationships

This is an updated version of a previous image that only showed bearing. Click here for a full size image.

In the upper figure, older (blue) branches cluster across ocean basins (disjucntions driven by continental drift) and within continents (endemic clades). Older branches are more common within and between the southern "Gondwanan" continents than those in the northern hemisphere. There is a paucity of north-south oriented branches in the northern hemisphere that may well refect how Pleistocene climate change has driven species ranges in this region.