Using electromagnetic waves originating in the ionosphere and magnetosphere, conductivity profiles reaching the deep upper mantle show surprising variability in water content.
Konar, Long, and Madani Receive 2019 Hydrologic Sciences Early Career Award
Megan Konar, Di Long, and Kaveh Madani received the Hydrologic Sciences Early Career Award at AGU’s Fall Meeting 2019, held 9–13 December in San Francisco, Calif. The award recognizes “scientists who demonstrate outstanding contributions to hydrologic sciences, education, or societal impacts and show exceptional promise of continued contributions to hydrology throughout their career.”
Explosive Volcanic Eruption Powered by Water-Saturated Magma
Little seismic unrest preceded the 2014 eruption of a stratovolcano in Indonesia, which suggests that the eruption was kick-started internally by volatile-triggered overpressure.
Water Found in Small, Habitable Zone Planet’s Atmosphere
K2-18b is warm, has an atmosphere, and has water vapor. But it’s no Earth 2.0.
Ammonia Ice Deposits on Pluto Hint at Recent Cryovolcanism
This discovery is the latest in a growing stack of evidence pointing to the presence of an ammonia-rich water ocean beneath Pluto’s icy crust.
Mapping Subglacial Meltwater Channels
Researchers find that past studies underestimate the friction meltwater channels exert on glaciers by orders of magnitude.
First Analysis of Asteroid Water Reveals Earth-Like Makeup
Samples returned from the surface of an asteroid show that these small bodies may have more water than previously thought and could have delivered that water to Earth.
Rover and Lasers Unlock Clues to Early Martian Atmosphere
Sediments from the Curiosity rover and experiments using tanks of gas and laser beams helped reveal how water continued to flow on Mars after the planet lost its atmospheric carbon dioxide.
What Ancient Rivers on Mars Reveal About Its “Great Drying”
Dried-up rivers on Mars suggest that the planet was wet in the not-too-distant past.
Project VoiLA: Volatile Recycling in the Lesser Antilles
Deep water cycle studies have largely focused on subduction of lithosphere formed at fast spreading ridges. However, oceanic plates are more likely to become hydrated as spreading rate decreases.