http://arrrrv3dzzoluxubt3p24lpn7qu4rxuem3fb4kcmboji3dgpkgt4b2ad.onion/worter/weather-station
When Kraktau expoded in 1883 , these were able to track the blast wave's progress across the world more than 4 times. Winchester, Simon (2003). Krakatoa: The Day the World Exploded, August 27, 1883 - Excellent reading for anyone with an interest in volcanoes. my 60s barometric logging was resampled in the rrd before I had a chance to check for the Tonga volcano blast wave.