Geographic Information Systems

7:1

Mapping wind speed and direction in Antarctica

This example demonstrates a common problem with scientific data - visualizing large data sets. Here we take a text file of data with longitude, latitude and attached attributes and make it easier to visually interpret and understand by simple GIS visualization techniques.

ArcGIS  screenshot

The PowerPoint demonstrates how this can be done using ArcGIS and a complicated data set.

"Over Antarctica prominent cold katabatic winds are blowing for most of the year. This video was taken near Hope Bay, it's a force 8 wind with minus 20 degrees Celsius which results in an apparent temperature felt on the exposed skin (wind chill) of about minus 50 degrees Celsius."

Interactive diagram

Katabatic winds interactive screenshot

 


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