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This week from AGU: Arctic mercury, EarthQuiz challenge & 5 new research papers

American Geophysical Union

GeoSpace

Warmer air, less sea ice lead to mercury decline in Arctic Ocean

The amount of mercury in the Arctic Ocean is declining as the region rapidly warms and loses sea ice, according to a new study. A new study in Geophysical Research Letters suggests that fish, marine mammals, polar bears, whales and humans in the Arctic might potentially be consuming lower amounts of toxic methylmercury as the region warms.

Eos.org

Puzzles invite you to explore Earth with interactive imagery

The EarthQuiz challenge can take you to virtual field locations with just the click of a button. Where in the world is this, and can you guess the significance of the geological features shown?

New research papers

Charting unknown waters--On the role of surprise in flood risk assessment and management, Water Resources Research

On the reliability of the Spatial Scintillation Index to detect earthquake precursors in the ionosphere, Radio Science

Variation of Jupiter's aurora observed by Hisaki/EXCEED: 2. Estimations of auroral parameters and magnetospheric dynamics, Journal of Geophysical Research: Space Physics

Diurnal to annual changes in latent, sensible heat and CO2 fluxes over a Laurentian Great Lake: A case study in western Lake Erie, Journal of Geophysical Research: Biogeosciences

Particulate nitrogen exports in stream runoff exceed dissolved nitrogen forms during large tropical storms in a temperate, headwater, forested watershed, Journal of Geophysical Research: Biogeosciences

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