Each month we feature specific Divisions of EGU and during the monthly GeoRoundup we will be putting the journals that publish science from those Divisions at the top of the Highlights roundup. For October, the Divisions we are featuring are: Natural Hazards (NH), Hydrological Sciences (HS) and Seismology (SM). They are served by the journals: Geoscientific Model Development (GMD), Hydrology and Earth System Sciences (HESS), Natural Hazards and Earth System Sciences (NHESS), SOIL, and Solid Earth (SE).
Using the super-droplet method, we constructed a detailed numerical model of mixed-phase clouds based on kinetic description and subsequently demonstrated that a large-eddy simulation of a cumulonimbus which predicts ice particle morphology without assuming ice categories or mass–dimension relationships is possible. Our results strongly support the particle-based modeling methodology’s efficacy for simulating mixed-phase clouds.
Mostly emitted by the agricultural sector, ammonia has an important role in atmospheric chemistry. We developed a model to simulate how ammonia emissions respond to changes in temperature and soil moisture, and we evaluated agricultural ammonia emissions globally. The simulated emissions agree with earlier estimates over many regions, but the results highlight the variability of ammonia emissions and suggest that emissions in warm climates may be higher than previously thought.
Water isotopes are a scientific tool that can be used to identify sources of water and answer questions such as From which soil depths do plants take up water?, which are highly relevant under changing climatic conditions. In the past, the measurement of water isotopes required tremendous effort. In the last decade methods have advanced and can now be applied in the field. Herein, we review the current status of direct field measurements of water isotopes and discuss future applications.
The geometry of estuaries is often altered through dredging to make room for ships and with extensive landfill over wetlands to enable development. Here, we use historical maps to help create computational models of seawater flow around and into a lagoonal bay of New York City for the 1880s and 2010s. Our results show that these past man-made changes cause higher coastal storm tides and that they result specifically from deeper depths, expanded inlet width, and landfill.
The Ekman spiral for piecewise-uniform viscosity – 22 October 2020
EGU Science in the News
A snapshot of recent English-speaking news coverage about EGU and its 19 open access journals:
- The Politico article How Biden would use trade agreements to fight global warming referenced a Biogeosciences study by Peters et al.
- A dozen outlets published articles based on an ACP study by Purohit et al., including Climate-friendly cooling to help ease global warming
- Disseminating Scientific Results in the Age of Rapid Communication in AGU’s Eos mentioned EGU’s open-access journals as examples of publications with “rapid dissemination but with rigorous scientific analysis”
- Benefits of EGU 2020: Sharing Geoscience Online continue to be discussed in the media, including Are virtual events a threat to the conference tourism? and Opportunities and Challenges of Virtual Meetings