El Niño–Southern Oscillation, Pliocene climate and equifinality
It has been suggested that, during the Pliocene (ca 5–1.8Ma), an El Niño state existed as a permanent rather than an intermittent feature; that is, the tropical Pacific Ocean was […]
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Read more of: El Niño–Southern Oscillation, Pliocene climate and equifinality
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Greenland: Bringing together remote sensing and fieldwork.
Read more of: Greenland: Bringing together remote sensing and fieldwork.With global land and sea temperatures rising, the importance of accurate monitoring of the world’s ice sheets is increasing. Satellite radar altimetry can be used to measure elevation changes of […]
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Three-dimensional test simulations of the outer radiation belt electron dynamics including electron-chorus resonant interactions
Read more of: Three-dimensional test simulations of the outer radiation belt electron dynamics including electron-chorus resonant interactionsWe present results from our three-dimensional (3-D) simulations using the Salammbô electron radiation belt physical model. We have run steady state and dynamic storm test case simulations to study the […]
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Antarctic isotopic thermometer during a CO2 forced warming event
Read more of: Antarctic isotopic thermometer during a CO2 forced warming eventResults from an isotope-enabled general circulation model are presented in order to determine the isotopic signal of a warmer climate on Antarctica. The warming is forced using CO2 forecasts for […]
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A methodology for targeting palaeo proxy data acquisition: a case study for the terrestrial late Miocene
Read more of: A methodology for targeting palaeo proxy data acquisition: a case study for the terrestrial late MioceneWhen planning the acquisition of new palaeo proxy data for reconstructing past climates, many factors influence the decision of where the proxies are to be collected. One such influence is […]
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A new global biome reconstruction and data-model comparison for the Middle Pliocene
Read more of: A new global biome reconstruction and data-model comparison for the Middle PlioceneAim To produce a robust, comprehensive global biome reconstruction for the Middle Pliocene (c. 3.6–2.6 Ma), which is based on an internally consistent palaeobotanical data set and a state-of-the-art coupled […]
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Review of modeling of losses and sources of relativistic electrons in the outer radiation belt II: Local acceleration and loss
Read more of: Review of modeling of losses and sources of relativistic electrons in the outer radiation belt II: Local acceleration and lossThis paper focuses on the modeling of local acceleration and loss processes in the outer radiation belt. We begin by reviewing the statistical properties of waves that violate the first […]
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Statistical analysis of thermospheric gravity waves from Fabry-Perot Interferometer measurements of atomic oxygen
Read more of: Statistical analysis of thermospheric gravity waves from Fabry-Perot Interferometer measurements of atomic oxygenData from the Fabry-Perot Interferometers at KEOPS (Sweden), Sodankylä (Finland), and Svalbard (Norway), have been analysed for gravity wave activity on all the clear nights from 2000 to 2006. A […]
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High time resolution measurements of the thermosphere from Fabry-Perot Interferometer measurements of atomic oxygen
Read more of: High time resolution measurements of the thermosphere from Fabry-Perot Interferometer measurements of atomic oxygenRecent advances in the performance of CCD detectors have enabled a high time resolution study of the high latitude upper thermosphere with Fabry-Perot Interferometers(FPIs) to be performed. 10-s integration times […]
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Short-period planetary waves in the Antarctic middle atmosphere
Read more of: Short-period planetary waves in the Antarctic middle atmospherePlanetary waves with periods between two and four days in the middle atmosphere over Antarctica are characterized using one year of data from the medium-frequency spaced antenna (MFSA) radars at […]
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A long-term comparison of wind and tide measurements in the upper mesosphere recorded with an imaging Doppler interferometer and SuperDARN radar at Halley, Antarctica
Read more of: A long-term comparison of wind and tide measurements in the upper mesosphere recorded with an imaging Doppler interferometer and SuperDARN radar at Halley, AntarcticaData from a near co-located imaging Doppler interferometer (IDI) and SuperDARN radar recorded since 1996 have been analysed in a consistent manner to compare the derived mean winds and tides […]
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Nonlinear dependence of ion-acoustic anomalous resistivity on electron drift velocity
Read more of: Nonlinear dependence of ion-acoustic anomalous resistivity on electron drift velocityCollisionless magnetic reconnection requires the violation of ideal MHD by various kinetic-scale effects. Recent research has highlighted the potential importance of wave-particle interactions by showing that Vlasov simulations of unstable […]