Using atmospheric model experiments, researchers have shown that the warming of the tropical Indian Ocean relative to the other two tropical ocean basins can effectively control Walker Circulation changes in the Pacific and Atlantic oceans and influence climate far beyond the Indian Ocean region.
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This paper details a new approach to evaluating the performance of land surface models, the component of climate and weather models that simulates land surface processes. It focuses on the cycle of solar radiation during daylight hours and how the energy from the sun is exchanged between the land surface and lower atmosphere.
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This study is based the well-established fact that sea ice cover is very closely related to surface air temperature, so that we can use trends in Antarctic sea ice as an independent validation for the reanalysis trends.
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In this paper, the researchers investigated how a major glacier tongue break in the Mertz polynya in Antarctica impacted phytoplankton blooms. Larger phytoplankton blooms increase the amount of carbon that can be stored in the deep ocean.
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In this paper, the researchers investigated how dryness, represented by the aridity index, affects the inter-annual variability of ecosystem iso/anisohydricity at the regional scale, estimated using satellite microwave vegetation optical depth observations.
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By grouping weather systems by similar patterns rather than averaging conditions over months, seasons or years, CLEX researchers found that between Australia and Antarctica, the ‘doughnut’ structure of SAM is split into multiple ‘flavours’ and is more likely to have ‘bite marks’ out of it than be a perfect ring.
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CLEX researchers and colleagues examined the contribution to uncertainty in simulated future changes in crop yields using the change-factor method and an additional, more sophisticated, statistical downscaling method of generating realistic future climate data from climate model output.
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This paper aims to catalogue the steps the authors have found make up a successful framework for event attribution analyses. The hope is that this paper will be useful for those considering how to undertake such work themselves and to highlight some of the potential issues and pitfalls that can arise along the way.
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Using ocean model simulations, this study demonstrates that the unusual behaviour of Indian Ocean temperatures over the past 60 years was mainly due to wind conditions.
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In a new study published in Nature Scientific Reports, a group of oceanographers, atmospheric scientists, ecologists and fisheries experts got together to identify the most severe marine heatwaves over recent decades. The objective was to understand what triggered these events and led to their ultimate demise.
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Research brief: Indian Ocean warming modulates global atmospheric circulation trends
Research brief: Land surface models struggle to reproduce evaporative processes
Research brief: Sea ice cover independently validates air temperature over Antarctic
Research brief: How a glacier tongue break influenced phytoplankton blooms in Antarctica
