The Volyn biota (Ukraine) – indications of 1.5 Gyr old eukaryotes in 3D preservation, a spotlight on the “boring billion” Biogeosciences DOI 10.5194/bg-20-1901-2023 16 June 2023 This research describes the occurrence of Precambrian fossils, with exceptionally well preserved morphology in 3D. These microfossils reach a size of millimeters (possibly up to centimeters) and thus indicate the presence of multicellular eukaryotes. Many of them are filamentous, but other types were also found. These fossils lived in a depth of several hundred meters and thus provide good evidence of a continental the deep biosphere, from a time generally considered as the “boring billion”. Read more
Pace v0.2: a Python-based performance-portable atmospheric model Geoscientific Model Development DOI 10.5194/gmd-16-2719-2023 14 June 2023 It is hard for scientists to write code which is efficient on different kinds of supercomputers. Python is popular for its user-friendliness. We converted a Fortran code, simulating Earth’s atmosphere, into Python. This new code auto-converts to a faster language for processors or graphic cards. Our code runs 3.5–4 times faster on graphic cards than the original on processors in a specific supercomputer system. Read more
What distinguishes 100-year precipitation extremes over central European river catchments from more moderate extreme events? Weather and Climate Dynamics DOI 10.5194/wcd-4-427-2023 12 June 2023 In this study, we analyse the generic atmospheric processes of very extreme, 100-year precipitation events in large central European river catchments and the corresponding differences to less extreme events, based on a large time series (~1200 years) of simulated but realistic daily precipitation events from the ECMWF. Depending on the catchment, either dynamical mechanisms or thermodynamic conditions or a combination of both distinguish 100-year events from less extreme precipitation events. Read more
Response of the sea surface temperature to heatwaves during the France 2022 meteorological summer Ocean Science DOI 10.5194/os-19-629-2023 9 June 2023 In the summer of 2022, France experienced a series of unprecedented heatwaves. This study is the first to examine the response of sea surface temperatures to these events, using spatial operational data and attributing the observed abnormally warm SSTs to atmospheric forcings. The findings of this study underscore the critical need for an efficient and sustainable operational system to monitor alterations that threaten the oceans in the context of climate change. Read more
Paleontology-themed comics and graphic novels, their potential for scientific outreach, and the bilingual graphic novel EUROPASAURUS – Life on Jurassic Islands Geoscience Communication DOI 10.5194/gc-6-45-2023 5 June 2023 We give an overview of influential comics and graphic novels on paleontological themes, especially dinosaurs. We explain their different forms of representation and narration, and how they were influenced by the contemporary state of knowledge. The second part deals with the creation of the bilingual graphic novel EUROPASAURUS – Life on Jurassic Islands, a textless comic book, and how this book was perceived by the public. EUROPASAURUS – Life on Jurassic Islands">Read more
Constraints on long-term cliff retreat and intertidal weathering at weak rock coasts using cosmogenic 10Be, nearshore topography and numerical modelling Earth Surface Dynamics DOI 10.5194/esurf-11-429-2023 2 June 2023 This study uses a coastal evolution model to interpret cosmogenic beryllium-10 concentrations and topographic data and, in turn, quantify long-term cliff retreat rates for four chalk sites on the south coast of England. By using a process-based model, clear distinctions between intertidal weathering rates have been recognised between chalk and sandstone rock coast sites, advocating the use of process-based models to interpret the long-term behaviour of rock coasts. Read more
The extremely hot and dry 2018 summer in central and northern Europe from a multi-faceted weather and climate perspective Natural Hazards and Earth System Sciences DOI 10.5194/nhess-23-1699-2023 31 May 2023 The objective of this study was to perform a comprehensive, multi-faceted analysis of the 2018 extreme summer in terms of heat and drought in central and northern Europe, with a particular focus on Germany. A combination of favourable large-scale conditions and locally dry soils were related with the intensity and persistence of the events. We also showed that such extremes have become more likely due to anthropogenic climate change and might occur almost every year under +2 °C of global warming. Read more
Quantifying gender gaps in seismology authorship Solid Earth DOI 10.5194/se-14-485-2023 29 May 2023 We investigate women’s representation in seismology to raise awareness of existing gender disparities. By analysing the authorship of peer-reviewed articles, we identify lower representation of women among single authors, high-impact authors, and highly productive authors. Seismology continues to be a male-dominated field, and trends suggest that parity is decades away. These gaps are an obstacle to women’s career advancement and, if neglected, may perpetuate the leaky-pipeline problem. Read more
Opinion: The scientific and community-building roles of the Geoengineering Model Intercomparison Project (GeoMIP) – past, present, and future Atmospheric Chemistry and Physics DOI 10.5194/acp-23-5149-2023 26 May 2023 Geoengineering indicates methods aiming to reduce the temperature of the planet by means of reflecting back a part of the incoming radiation before it reaches the surface or allowing more of the planetary radiation to escape into space. It aims to produce modelling experiments that are easy to reproduce and compare with different climate models, in order to understand the potential impacts of these techniques. Here we assess its past successes and failures and talk about its future. Read more
Evaluation of liquefaction triggering potential in Italy: a seismic-hazard-based approach Natural Hazards and Earth System Sciences DOI 10.5194/nhess-23-1685-2023 24 May 2023 In the present study, we analyse ground-motion hazard maps and hazard disaggregation in order to define areas in Italy where liquefaction triggering due to seismic activity can not be excluded. The final result is a screening map for all of Italy that classifies sites in terms of liquefaction triggering potential according to their seismic hazard level. The map and the associated data are freely accessible at the following web address: www.distav.unige.it/rsni/milq.php. Read more
