8809 to 8820 of 14026 results
-
-
Inferring palaeo-accumulation records from ice-core data by an adjoint-based method: application to James Ross Island’s ice core
Read more of: Inferring palaeo-accumulation records from ice-core data by an adjoint-based method: application to James Ross Island’s ice coreIce cores contain a record of snow precipitation that includes information about past atmospheric circulation and mass imbalance in the polar regions. We present a novel adjoint method to reconstruct […]
-
Solar-wind-driven geopotential height anomalies originate in the Antarctic lower troposphere
Read more of: Solar-wind-driven geopotential height anomalies originate in the Antarctic lower troposphereWe use National Centers for Environmental Prediction/National Center for Atmospheric Research reanalysis data to estimate the altitude and time lag dependence of the correlation between the interplanetary magnetic field component, […]
-
Effect of plasma density on diffusion rates due to wave particle interactions with chorus and plasmaspheric hiss: extreme event analysis
Read more of: Effect of plasma density on diffusion rates due to wave particle interactions with chorus and plasmaspheric hiss: extreme event analysisWave particle interactions play an important role in controlling the dynamics of the radiation belts. The purpose of this study is to estimate how variations in the plasma density can […]
-
Energetic particle forcing of the Northern Hemisphere winter stratosphere: comparison to solar irradiance forcing
Read more of: Energetic particle forcing of the Northern Hemisphere winter stratosphere: comparison to solar irradiance forcingVariation in solar irradiance is considered an important factor in natural climate forcing. Variations in the solar UV in particular are now regarded as a major source of decadal variability […]
-
Commercial fishing vessel as research vessels in the Antarctic – requirements and solutions exemplified with a new vessel
Read more of: Commercial fishing vessel as research vessels in the Antarctic – requirements and solutions exemplified with a new vesselThe climate-induced changes presently seen in the ecosystems of the Antarctic region require a precautionary approach with respect to the human use of these ecosystems. In particular, resource harvesting requires […]
-
Variation of scavenger richness and abundance between sites of high and low iceberg scour frequency in Ryder Bay, west Antarctic Peninsula
Read more of: Variation of scavenger richness and abundance between sites of high and low iceberg scour frequency in Ryder Bay, west Antarctic PeninsulaPhysical disturbance, particularly from iceberg scour, is a major structuring force in polar benthic communities at shelf depths. Scouring kills and damages benthic organisms providing food for the abundant scavenging […]
-
-
The role of the Sun in long-term change in the F2 peak ionosphere: new insights from EEMD and numerical modelling
Read more of: The role of the Sun in long-term change in the F2 peak ionosphere: new insights from EEMD and numerical modellingWe applied Ensemble Empirical Mode Decomposition (EEMD) for the first time to ionosonde data to study trends in the critical frequency of the F2 peak, foF2, and its height, hmF2, […]
-
Boundary condition of grounding lines prior to collapse, Larsen-B Ice Shelf, Antarctica
Read more of: Boundary condition of grounding lines prior to collapse, Larsen-B Ice Shelf, AntarcticaGrounding zones, where ice sheets transition between resting on bedrock to full floatation, help regulate ice flow. Exposure of the sea floor by the 2002 Larsen-B Ice Shelf collapse allowed […]
-
Greenland deglaciation puzzles
Read more of: Greenland deglaciation puzzlesAbout 23,000 years ago, the southern margins of the great Northern Hemisphere ice sheets across Europe and North America began to melt. The melt rate accelerated ∼20,000 years ago, and […]
-
The ‘footloose’ mechanism: iceberg decay from hydrostatic stresses
Read more of: The ‘footloose’ mechanism: iceberg decay from hydrostatic stressesWe study a mechanism of iceberg breakup that may act together with the recognized melt and wave-induced decay processes. Our proposal is based on observations from a recent field experiment […]