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This week from AGU: Impacts on Europa, ocean acidification, dam removal and research papers

American Geophysical Union

GeoSpace

New research shows impacts from comets or asteroids could have created Europa's chaos terrain Impactors, such as comets or asteroids, can penetrate the frozen surface of Jupiter's moon Europa, finds a new paper in the Journal of Geophysical Research: Planets.

New research identifies areas of global ocean most vulnerable to ocean acidification

The distribution of aragonite saturation state in both surface and subsurface waters of the global ocean provides further evidence that ocean acidification is happening on a global scale, shows a new paper in Global Biogeochemical Cycles.

Eos.org

Contaminated sediment and dam removals: Problem or opportunity?

Restoring rivers to their free-flowing state promises a host of environmental benefits, but contaminated sediments may cloud the picture.

New research papers

Predictions for impactor contamination on Ceres based on hypervelocity impact experiments, Geophysical Research Letters

Quantifying sources and sinks of reactive gases in the lower atmosphere using airborne flux observations, Geophysical Research Letters

From soilscapes to landscapes: A landscape-oriented approach to simulate soil organic carbon dynamics in intensively managed landscapes, Journal of Geophysical Research: Biogeosciences

Fresh water and its role in the Arctic Marine System: Sources, disposition, storage, export, and physical and biogeochemical consequences in the Arctic and global oceans, Journal of Geophysical Research: Biogeosciences

Mitigating satellite motion in GPS monitoring of travelling ionospheric disturbances (TIDs), Radio Science

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