GeoRoundup: the highlights of EGU Journals published during September!

GeoRoundup: the highlights of EGU Journals published during September!

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 September, the Divisions we are featuring are: Energy, Resources and Environment (ERE) and Geochemistry, Mineralogy, Petrology and Volcanology (GMPV). They are served by the journals: Geoscientific Model Development (GMD), Earth System Dynamics (ESD) and Solid Earth (SE).


Featured highlights

Geoscientific Model Development:

HyLands 1.0: a hybrid landscape evolution model to simulate the impact of landslides and landslide-derived sediment on landscape evolution – 24 September 2020

Landslides shape the Earth’s surface and are a dominant source of terrestrial sediment. Rivers, then, act as conveyor belts evacuating landslide-produced sediment. Understanding the interaction among rivers and landslides is important to predict the Earth’s surface response to past and future environmental changes and for mitigating natural hazards. We develop HyLands, a new numerical model that provides a toolbox to explore how landslides and rivers interact over several timescales.


Earth System Dynamics:

Emergent constraints on transient climate response (TCR) and equilibrium climate sensitivity (ECS) from historical warming in CMIP5 and CMIP6 models 3 September 2020

One of the key questions in climate science is how much more heating we will get for a given rise in carbon dioxide in the atmosphere. A new generation of models showed that this might be more than previously expected. Comparing the new models to observed temperature rise since 1970, we show that there is no need to revise the estimate upwards. Air pollution, whose effect on climate warming is poorly understood, stopped rising, allowing us to better constrain the greenhouse gas signal.

ESD Ideas: Global climate response scenarios for IPCC assessments – 8 September 2020

Policy making on climate change routinely employs socioeconomic scenarios to sample the uncertainty in future forcing of the climate system, but the Intergovernmental Panel on Climate Change has not employed similar discrete scenarios to sample the uncertainty in the global climate response. Here, we argue that to enable risk assessments and development of robust policies this gap should be addressed, and we propose a simple methodology.

Groundwater storage dynamics in the world’s large aquifer systems fromGRACE: uncertainty and role of extreme precipitation – 15 September 2020

Recent assessments of the sustainability of global groundwater resources using the Gravity Recovery and Climate Experiment (GRACE) satellites assume that the underlying trends are linear. Here, we assess recent changes in groundwater storage (ΔGWS) in the world’s large aquifer systems using an ensemble of GRACE datasets and show that trends are mostly non-linear. Non-linearity in ΔGWS derives, in part, from the episodic nature of groundwater replenishment associated with extreme precipitation.

Other highlights

Atmospheric Chemistry and Physics:

Effective radiative forcing and adjustments in CMIP6 models 3 September 2020

Inconsistencies between chemistry–climate models and observed lower stratospheric ozone trends since 1998 10 September 2020

Revisiting global satellite observations of stratospheric cirrus clouds 15 September 2020

A semi-empirical potential energy surface and line list for H216O extending into the near-ultraviolet 17 September 2020

The value of remote marine aerosol measurements for constraining radiative forcing uncertainty 22 September 2020

Quantifying burning efficiency in megacities using the NO2/CO ratio fromthe Tropospheric Monitoring Instrument (TROPOMI) 24 September 2020


Atmospheric Measurement Techniques:

A global analysis of climate-relevant aerosol properties retrieved from the network of Global AtmosphereWatch (GAW) near-surface observatories 1 September 2020


Climate of the Past:

Bipolar volcanic synchronization of abrupt climate change in Greenland and Antarctic ice cores during the last glacial period 8 September 2020

Climatic information archived in ice cores: impact of intermittency and diffusion on the recorded isotopic signal in Antarctica 10 September 2020

Lessons from a high-CO2 world: an ocean view from ∼3 million years ago 17 September 2020


Geoscience Communication:

Open weather and climate science in the digital era – 1 September 2020


Natural Hazards and Earth System Sciences:

Fire Weather Index: the skill provided by the European Centre for Medium-Range Weather Forecasts ensemble prediction system – 22 September 2020


EGU Science in the News

A snapshot of recent English-speaking news coverage based on research published in EGU’s 19 open access journals:

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Hazel Gibson is Head of Communications at the European Geosciences Union. She is responsible for the management of the Union's social media presence and the EGU blogs, where she writes regularly for the EGU's official blog, GeoLog. She has a PhD in Geoscience Communication and Cognition from the University of Plymouth in the UK. Hazel tweets @iamhazelgibson.

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