meteorology

Weatherman Bob disappeared today. He was consumed, or maybe absorbed, by his Green Screen. A Green Screen is a screen, green in color, with special properties. A TV studio camera and the equipment it is hooked to replace the green screen with an imaginary background. So, a person who is not green can stand in front of the Green Screen and to the TV viewer it will look like the person is standing in front of something else. This is how weather reporters on TV ply their trade. They look like they are standing in front of a map of the region showing cold fronts and warm fronts and…
Meteorology still depends on a bit of clairvoyance, but in the 19th century many sailors, fishermen, and farmers "had to rely on storm glass, an inexpensive and profoundly inaccurate divining tool." The mixture of "camphor crystals, potassium nitrate, ammonium chloride, water and alcohol" transitions from "solid to crystalline under circumstances that still aren't full understood." Frank Swain has details and pictures on SciencePunk, along with an account of the origin of forecasting in the British Isles. On Class M, James Hrynyshyn considers the complicated effects of clouds on world…
As it's shaping up to be my final days in Devon, me and my #1 Nerd travelled to Barometer World, a pilgrimage we'd been promising to make since the start of summer. As the name suggests, it's a Mecca of meteorological wonder, boasting hundreds of aneroid and mercury barometers, barographs, thermometers, hygrometers and thunder bottles. It's a bargain at £2.50 and I encourage everyone to go. What intrigued me most of all, though, was the strange crystals attached to many of the old barometers. This, I was told, was storm glass, a curiosity whose origins are hidden in the mists of time. Back in…
It's Earth Science Week, and this year's theme is Understanding Climate. So it's the perfect time to share some cool videos of women earth scientists and how they are working to improve the diversity and representation of women in atmospheric science. Hat tip to Erika Marin-Spiotta for sharing these videos. The first three-minute video is about the GRASP program, which gives undergraduate students a chance to do research at Storm Peak Lab in Colorado. The second ten-minute video is on the ASCENT workshops, that aimed to develop vertical mentoring and lateral networking among women…