american geophysical union

(American Geophysical Union) Featured in this release are research papers on the following topics: "Reduced Saharan dust due to rain boosts ocean heating", "Coastal Southern Ocean acts as powerful carbon sink","Ionosphere fluctuations linked to sudden stratospheric warming", "Earthquake probability models tested against 2000-year record", "Melting ice likely formed Martian gullies", "Topography tweaks solar tides", "Clouds stimulate transport of air ", "Using cosmic-ray neutrons to measure soil moisture", "Isotopes illuminate atmospheric convection", "Explaining isotope composition of t

(American Geophysical Union) Topics of press conferences in planning include: Revisiting dinosaur extinction; Arctic sea ice loss and methane rise; Abrupt climate change; Peak oil; New observations of Enceladus and Titan; Aerosol Geoengineering -- Feasible?

(American Geophysical Union) Featured in this release are research papers on the following topics: "Ups and downs of Greenland's ice sheet," "Shrinking Arctic ice boosts phytoplankton growth," "Comet-like tail of ion flux streams from Mars," "Surface waves effects in deep ocean," "Potential predictability for some earthquakes?," "Magnetic fields reconnecting in near-Earth space," "Studying Saturn's oxygen ion supply," "Global climatology of drizzle," "Observations imply water vapor-climate feedback," "A seasonal look at soil moisture" and "Wildfires boost ozone beyond health standards."

(American Geophysical Union) Featured in this release are research papers on the following topics: "Land sinks in Iran from groundwater overuse"; "Climate-related mechanism may explain strange Martian craters"; "Mantle plumes: Thin, fat, successful, or failing?"; "Aurora pulses as the solar wind gusts"; and "Assessing water-supply prospects of Upper Colorado River basin."

(American Geophysical Union) The following articles are in this issue of Geophysical Research Letters: "Tracking the dust belt"; "Better modeling of global climate effects in Amazon basin"; "Dust sources identified in Australia's Lake Eyre Basin"; "Infrared images reveal groundwater plumes off Hawaii coast"; "Transient currents after lightning flashes"; "Meteor-produced ionization influences radio propagation"; and "Redefining biologically distinct oceanic provinces."

(American Geophysical Union) In this issue: "Carbon enters deep Arctic Ocean mainly from continent edges"; "Magnetic patterns around Venus revealed"; "How porous, organism-rich layers form in Antarctic sea ice"; "Cold plasma plumes help generate aurora"; "Sea current near Norway gets cooled in Arctic"; "Rock type may influence hill steepness and landslide frequency"; and "Permafrost risk from rapid melt of Arctic sea ice."

(American Geophysical Union) The following articles are in this issue: "Warming could release east Siberia's vast frozen carbon"; "Exploring magnetic holes in the solar wind"; "Radio-disrupting bubbles rise high in twilight sky"; "Titanium may contribute to planets' magnetic anomalies"; and Reservoir size affects flow through porous materials.

(American Geophysical Union) Recent research reveals new aspects of how upper-atmospheric electrical activity disrupts GPS signals.

Also, using such disruptions as a measurement tool, scientists are charting the electrical-current structures of the ionosphere.

Learn more from a special section of the online journal Space Weather. A magazine-style introductory article gives an overview of scientific knowledge in this area of critical importance to navigation and telecommunications.

(American Geophysical Union) In this issue: Human control of radiation belt, Antarctic current roils deep ocean waters, Did slow deformation mitigate Peru quake?, Australian dryness linked to sea surface temperatures, Warming and cooling from land cover changes, Satellites give lowdown on polar lows.

(American Geophysical Union) In this issue: Did global sea level rise start centuries ago" Clues suggest U.S. east coast subsided, Wind-launched ocean eddies, Ancient Antarctic dust reveals past wind patterns, Lab tests show plate-slip progression, Atlantic surface temperatures linked to south Asian monsoons, Investigating Andean stress patterns, Climate models overheat Antarctica, Ozone-hole recovery may spur Antarctic warming.