I’ve been lately tinkering with Libra, a free service to browse and download satellite imagery from Landsat 8 satellite.
This is an image from Landsat 8 satellite (2014-07-23) showing massive algal blooms at Archipelago Sea.
You really should check this huge high resolution image to get a sense of scale.
Those tiny dots are large ships cutting through the algae mush:
This is Finnish Kindness Index based on christmas consumption data.
Continue reading Finnish Kindness Index 1995-2012
Now something different.
Off-piste snowboarding in urban or rural areas is a time-consuming hobby especially outside the mountain areas, because the best spots are neither marked nor listed in city maps. A lazy snowboarder wants to find a nice, open hillside with decent slope and sparse treeline, but finding even a few spots requires numerous trips to countless would-be locations. But hey, we have open source GIS tools and Open Data to mine for just that!
So I opened up Quantum GIS and the Raster Calculator.
Continue reading Mining open source GIS data for Urban Snowboarding locations