Unprecedented springtime retreat of Antarctic sea ice in 2016
During Austral spring 2016 Antarctic sea ice extent (SIE) decreased at a record rate of 75 × 103 km2 day-1, which was 46% faster than the mean rate and 18% faster than in any […]
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Read more of: Unprecedented springtime retreat of Antarctic sea ice in 2016
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Contrasting drivers of reproductive ageing in albatrosses
Read more of: Contrasting drivers of reproductive ageing in albatrosses1. Age-related variation in reproductive performance is ubiquitous in wild vertebrate populations and has important consequences for population and evolutionary dynamics. 2. The ageing trajectory is shaped by both within-individual […]
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Planococcus versutus sp. nov., isolated from soil
Read more of: Planococcus versutus sp. nov., isolated from soilA taxonomic study was performed on a novel Gram-stain-positive, coccus-shaped, orange-pigmented motile bacterium, designated as strain L10.15T. The organism was isolated from a soil sample collected in Lagoon Island (close […]
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Holocene black carbon in Antarctica paralleled Southern Hemisphere climate
Read more of: Holocene black carbon in Antarctica paralleled Southern Hemisphere climateBlack carbon (BC) and other biomass-burning (BB) aerosols are critical components of climate forcing but quantification, predictive climate modeling, and policy decisions have been hampered by limited understanding of the […]
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Stratospheric response to the 11-year solar cycle: Breaking planetary waves, internal reflection and resonance
Read more of: Stratospheric response to the 11-year solar cycle: Breaking planetary waves, internal reflection and resonanceBreaking planetary waves (BPWs) affect stratospheric dynamics by reshaping the waveguides, causing internal wave reflection and preconditioning sudden stratospheric warmings. This study examines observed changes in BPWs during the northern […]
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The transient response of ice-shelf melting to ocean change
Read more of: The transient response of ice-shelf melting to ocean changeIdealised modelling studies have shown that the melting of ice shelves varies as a quadratic function of ocean temperature. However, this result is the equilibrium response, derived from steady ice— […]
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Position and variability of complex structures in the central East Antarctic Ice Sheet
Read more of: Position and variability of complex structures in the central East Antarctic Ice SheetAlthough the flow of the East Antarctic Ice Sheet is well constrained from surface measurements and altimetry, our knowledge of the dynamic processes within the ice sheet remains limited. Recent […]
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The impacts of El Niño on the observed sea ice budget of West Antarctica
Read more of: The impacts of El Niño on the observed sea ice budget of West AntarcticaWe assess the impact of El Niño-induced wind changes on seasonal West Antarctic sea ice concentrations using reanalysis data and sea ice observations. A novel ice budget analysis reveals that […]
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Multi-model study of mercury dispersion in the atmosphere: vertical and interhemispheric distribution of mercury species
Read more of: Multi-model study of mercury dispersion in the atmosphere: vertical and interhemispheric distribution of mercury speciesAtmospheric chemistry and transport of mercury play a key role in the global mercury cycle. However, there are still considerable knowledge gaps concerning the fate of mercury in the atmosphere. […]
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A deep subglacial embayment adjacent to the grounding line of Institute Ice Stream, West Antarctica
Read more of: A deep subglacial embayment adjacent to the grounding line of Institute Ice Stream, West AntarcticaThe Institute Ice Stream (IIS) in West Antarctica may be increasingly vulnerable to melting at the grounding line through modifications in ocean circulation. Understanding such change requires knowledge of grounding-line […]
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Polar oceans in a changing climate
Read more of: Polar oceans in a changing climateMost of Earth’s surface is blue or white, but how much of each would depend on the time of observation. Our planet has been through phases of snowball (all frozen), […]
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Assessing drivers of coastal phytoplankton productivity in northern Marguerite Bay, Antarctica
Read more of: Assessing drivers of coastal phytoplankton productivity in northern Marguerite Bay, AntarcticaThe coastal ocean of the climatically-sensitive west Antarctic Peninsula is experiencing changes in the physical and (photo)chemical properties that strongly affect the phytoplankton. Consequently, a shift from diatoms, pivotal in […]