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For many species trophic interactions are difficult to study because of their cryptic habits and/or the unfavourable characteristics of samples for traditional diet techniques. DNA-based diet techniques are sensitive…
We report the first observations of simultaneous high-latitude inter-hemispheric F-region neutral wind fields by combining the 630 nm optical measurements from two scanning Doppler imagers and three Fabry-Perot interferometers for a period exceeding 5 hours on 3 October 2008.
All-sky imaging Fabry-Perot spectrometers can provide two dimensional maps of thermospheric wind and temperature fields over a circular region spanning around 1400 km in diameter at F-region heights, or about half this in the E-region.
Large-etalon Fabry-Perot Spectrometers (FPS) measure upper atmosphere winds and temperatures by observing spectral profiles of atmospheric emission lines with sufficient resolution to determine the Doppler broadening, from which temperature is deduced…
The sub-Antarctic region between 45-60°S is primarily ocean. However, there are a few small isolated islands, most of which are currently facing the combined pressures of climate change and introduced species.
The sub-Antarctic region between 45-60 °S is primarily ocean. However, there are a few small isolated islands, most of which are currently facing the combined pressures of climate change and introduced species.