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In 2024, atmospheric conditions over Antarctica exhibited significant anomalies, and were marked by major surface and stratospheric warming and pressure fluctuations. The first half of the year (January–June) featured persistent below-normal surface pressure over the continent…
Observations of temporary Forbush decreases (FDs) in the Galactic cosmic-ray (GCR) flux due to the passage of solar storms are useful for space-weather studies and alerts. Here…
Fast ice is an important component of Antarctic coastal marine ecosystems, providing a prolific habitat for ice algal communities. This work examines the relationships between normalized difference indices (NDI)…
Between March 15-19, 2022, East Antarctica experienced an exceptional heatwave with widespread 30-40° C temperature anomalies across the ice sheet. This record-shattering event saw numerous monthly temperature records being broken including a new all-time temperature record of -9.
Between March 15-19, 2022, East Antarctica experienced an exceptional heatwave with widespread 30-40° C temperature anomalies across the ice sheet. In Part I, we assessed the meteorological drivers that generated an intense atmospheric river (AR)…
Echosounder data are widely collected and employed to address multitude scientific questions, from characterizing pelagic marine ecosystems, to investigating the behaviour and dynamics of marine organisms, and estimating the abundance and biomass of marine resources.
Neutron monitors are integral detectors of secondary cosmic rays. Since each of them … has its own detection efficiency, energy spectra cannot readily be derived from their … observations. To circumvent this problem…
Abstract: Two identical calibration neutron monitors were completed in September 2002. They are … designed to provide an intercalibration between the ¡Ö 50 neutron monitors around the world, so that … rigidity spectra can be calculated from them.
A second orchid species, Nematoceras … sulcatum M.A.Clem. et D.L.Jones, has been found on … subantarctic Macquarie Island. A history of its discovery … and recognition is provided. The morphology, biology and ecology of the new species are compared … with N. dienemum (D.L.Jones) D.L.Jones, M.A.Clem.
We have sequenced the 18S–26S nuclear ribosomal DNA ITS region from the genome of nine … different moss species from the Ross Sea region of Antarctica. This relatively quick and simple technique … enables these species to be readily distinguished, facilitating their taxonomic identification.
Within a 6-minute span on January 20, 2005, the count rate registered by a neutron monitor at the sea level … station of McMurdo, Antarctica increased by a factor of 30, while the rate at the high-altitude (2820 m) site … of South Pole increased by a factor of 56.