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The Southern Hemisphere … Antarctic stratosphere experienced two noteworthy events in 2015: a … significant injection of sulfur from the Calbuco volcanic eruption in Chile … in April, and a record-large Antarctic ozone hole in October and November. Here…
Stratosphere-to-troposphere transport (STT) provides an important … natural source of ozone to the upper troposphere, but the characteristics of … STT events in the Southern Hemisphere extratropics and their contribution to … the regional tropospheric ozone budget remain poorly constrained. Here…
Chemistry–climate models are important tools for addressing interactions of composition and climate in the Earth system. In particular, they are used to assess the combined roles of greenhouse gases and ozone in Southern Hemisphere climate and weather.
Atmospheric gravity waves (AGWs), which are generated in the lower atmosphere, transport significant amount of energy and momentum into the mesosphere and lower thermosphere. Among many parameters to characterize AGWs, horizontal phase velocity is very important to discuss the vertical propagation.
Atmospheric gravity waves (AGWs), which are generated in the lower atmosphere, transport significant amount of energy andmomentum into the mesosphere and lower thermosphere and cause the mean wind accelerations in the mesosphere.
Atmospheric gravity waves (AGWs), which are generated in the lower atmosphere, transport significant amount of energyand momentum into the mesosphere and lower thermosphere and cause the mean wind accelerations in the mesosphere.
The Southern Hemisphere Imaging Riometer Experiment (SHIRE) is a phased array of radio receivers that observes the Antarctic sky at 38 MHz. It detects ionospheric absorption of cosmic radio noise near an altitude of 90km and is used to study the aurora and other high-latitude ionospheric phenomena.
Current interpretation of histological alteration in fish as an indicator of contaminant impact is subjective. Generally severity of alteration is poorly described, and does not allow direct comparison between studies. A histological health index (HHI) modified from Bernet et al (1999)…