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Editors’ Highlights

Summaries by AGU’s editors of recent journal articles

Atmospheric Sciences
Two plots showing percent changes in TIME-GCM zonally averaged [O+] and [H+] as a function of latitude and altitude in the Northern Hemisphere between the “disturbed” and “pre-disturbance” time periods in 2012–2013

14 December 2020

Stratospheric Weather Impacts Light Species at Great Heights

Sudden stratospheric warmings in the high latitude wintertime can drive changes in light species (H, He and O) all the way though the thermosphere, likely influencing ion densities in the exosphere.
Read More �
Hydrology, Cryosphere & Earth Surface
Two plots showing cash flow and maximum debt for a hydropower utility with three different financial management strategies

11 December 2020

How to Hedge the Risk of Reduced Snowpack for Hydropower

A new index insurance contract – a financial product innovation seeking to cope with climatic variability – could help hydropower operators to manage climate risks.
Read More �
Atmospheric Sciences
Four plots showing composites for very cold cloud tops for tropical cyclones in the western North Pacific during intensification at different times for the period 2000-2017

9 December 2020

How Tropical Cyclones Increase in Intensity Overnight

The diurnal variations of tropical cyclone intensification and decay are analyzed using satellite data for deep convective clouds.
Read More �
Hydrology, Cryosphere & Earth Surface
Figure showing channel cross section geometry and erosion potential simulated with a comprehensive morphodynamic model at different stages of the channel evolution

7 December 2020

Stream Hydraulic Geometry 1.01

New research provides a theoretical explanation of channel cross section geometry dependence on flow rate that is commonly observed and described with power-laws.
Read More �
Hydrology, Cryosphere & Earth Surface
Six plots showing spatial distribution of steady-state groundwater aquifer salinity (colors) and flow streamlines (white) for the two-dimensional simulations of the floodplain

4 December 2020

Evaporation Reverses Groundwater Flow and Forms Hyper-Salinity

A numerical model of groundwater-surface water systems shows how floodplain evaporation can reverse stream-groundwater flow and produce strong buoyancy changes associated with salinity.
Read More �
Mathematical Geophysics
Plots showing a visual comparison of spatial pattern of snowfall rate obtained from four different sources

2 December 2020

Using Machine Learning to Detect and Estimate Global Snowfall

Machine learning is used to retrieve global snowfall occurrence and rate from satellite-based passive microwave sounder observations, trained by snowfall data from a high-quality space borne radar.
Read More �
Biogeosciences

1 December 2020

High Climatic Response of High-Latitude Forests

The seasonal amplitude of atmospheric CO2 is increasing, partly due to boreal forest responses to warming. Photosynthesis and expansion of boreal forests are shown here to be temperature-limited.
Read More �
Planetary Sciences

24 November 2020

Life in the Chicxulub Crater Years After It Was Formed

While the seas were still churning from the impact and the seawater temperatures were high due to the hydrothermal activity, life was reestablishing itself inside the crater.
Read More �
Geochemistry, Mineralogy, Volcanology
Schematic diagram of the experimental apparatus

13 November 2020

The Importance of Wind for the Fate of Volcanic Eruption Columns

A theoretical model coupled to lab experiments on turbulent jets with reversing buoyancy sheds new light on the role of wind in controlling the dynamics of volcanic eruptive columns.
Read More �
Atmospheric Sciences
Plot showing average temperature change over California caused by reductions in airborne particle concentrations

11 November 2020

Comparing Impacts of CO2 and Particle Emission Reductions

Black carbon contained in airborne particles is often cited as a major factor warming the climate, but how much can California reduce climate change through reducing airborne particle concentrations?
Read More �
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Most Popular

Geology & Geophysics

Science Update 19 January 2021

Using Earthquake Forensics to Study Subduction from Space

Natural Hazards

News 23 December 2020

To Make Better Hurricane Models, Consider Air Pollution

Planetary Sciences

News 7 January 2021

Very Good Space Boys: Robotic Dogs May Dig Into Martian Caves

From AGU Journals

Most Shared

JGR Biogeosciences

Spatial and temporal patterns of global burned area in response to anthropogenic and environmental factors: Reconstructing global fire history for the 20th and early 21st centuries

Jia Yang et al.

Highly Cited

JGR Biogeosciences

Global patterns of land‐atmosphere fluxes of carbon dioxide, latent heat, and sensible heat derived from eddy covariance, satellite, and meteorological observations

Martin Jung et al.

Hot Article

JGR Atmospheres

Kelvin‐Helmholtz Billow Interactions and Instabilities in the Mesosphere Over the Andes Lidar Observatory: 1. Observations

J. H. Hecht et al.

View More Highlights »

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January 2021

Volume 102 Issue 1

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Most Popular

Geology & Geophysics

Science Update 19 January 2021

Using Earthquake Forensics to Study Subduction from Space

Natural Hazards

News 23 December 2020

To Make Better Hurricane Models, Consider Air Pollution

Planetary Sciences

News 7 January 2021

Very Good Space Boys: Robotic Dogs May Dig Into Martian Caves

Most Commented

Geochemistry, Mineralogy, Volcanology

Editors' Vox 5 November 2020

A Geologist’s Guide to Exploring and Understanding Iceland

2 Comments

Geology & Geophysics

News 12 January 2021

Modeling the Creation of Cratons, Earth’s Secret Keepers

2 Comments

Atmospheric Sciences

News 9 November 2020

A Little-Known Mass Extinction and the “Dawn of the Modern World”

2 Comments

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Geology & Geophysics

Science Update 14 January 2021

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News 13 January 2021

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News 12 January 2021

Modeling the Creation of Cratons, Earth’s Secret Keepers

2 comments

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