Arctic and Antarctic Sea Ice Mayhem: AGU Mashup // Published on Dec 24, 2017
Early snow retreat on the West Siberian Plains warms air temperatures, amplifying Rossby waves, causing a ridge and warming over Laptev Sea (thus rapid Arctic ice loss). Large cyclones, now stronger and lasting longer cause sea ice spreading with more melt. Strong Antarctic Circumpolar Ocean Currents, driven by stronger winds cause increased upwelling in places (depending on bathymetry) reducing overturning circulation (downwelling). Sea ice rheology, surface melt ponds, filaments and mesoscale eddies are all messed up.
Arctic Sea-Ice Physical Changes: AGU 2017 Highlights // Published on Dec 24, 2017
Most people following climate change know that Arctic sea ice AREA (region with all ice, no open water), EXTENT (-15% ice), and THICKNESS are dropping like a rock.
Here I discuss AGU 2017 talks on how less known ice properties (strength, wetness, age, density, cohesiveness, motion, salinity, etc.) are changing; and also how satellite instruments detect these properties; and which limitations exist, for example ice less than 30 cm (1 foot) thick and salt content measurements are problematic.
MishMash of AGU Technical Talks: KickOff // Published on Dec 23, 2017
In this video, and a number to follow I discuss, in “Joe the Plumber” style, a MishMash of AGU (American Geophysical Union) technical talks that I attended.
Topics massacred (err; touched on) include unstable calving boundaries in Antarctica, Larsen C, tides, Greenland melt, SW US valley fever, air pollution in China and India worsening from climate change. Sit back and enjoy the journey.
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