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Volume 3 Issue 6 | January 2023
FROM THE EDITOR IN CHIEF
In this issue, research papers illustrate the many ways our science advances. Theoretical advances allow prediction of characteristics from squall lines to sea salt aerosol formation, and explain the relationship between height and width of terraced river valleys. The use of novel tools provides explanations for why hotspots located in northern and southern hemispheres differ in Nd isotopic composition, allows estimation of C burial in sediments during a low-oxygen event in the Jurassic, and quantifies pandemic changes in fossil fuel emissions. Two climate-related papers follow variations in the north American monsoon, and predict future expansion of ocean oxygen minimum zones. In addition, four new commentaries continue our theme of improving how we do our science. —Susan Trumbore, Editor in Chief
Ryan-Davis and Scalice describe a path towards sampling more ethically, going beyond legal permitting requirements to engagement of Indigenous expertise and respect of peoples’ relationship to place. Ryan-Davis and Scalice
Assigned to another committee? “Ugh,” you say. Think again and read this article to see how that committee could be an engine of diversity for your organization and for the geosciences. Lewis et al.
The 2021 Nobel Prize in Physics was awarded for climate modeling and for the discovery of multifractals to describe intermittency and the scaling dynamics of climate variables, including extremes. Lovejoy
“Blue water” is the water in rivers, lakes, and reservoirs. A new NASA mission will track blue water levels globally at least once a month. Early Adopters are eager and ready to use the data! Hossain et al.
A cascade of land-atmosphere interactions resulting from a winter heatwave in Siberia led to significant summer impacts that further exacerbated the heatwave effects on the region. Gloege et al.
About 50 years ago, vorticity thinking helped unveil basic properties of squall lines. Zhang now provides a closed theory, demystifying one of nature’s most important forms of convective organization. Zhang
Evidence shows that expansion of the North American Monsoon explains a wetter southwest in the mid-Pliocene, and this mechanism can explain current monsoon variations. Bhattacharya et al.
Radiocarbon in roadside plants revealed a decline in auto emissions during COVID lockdown and a 2021 rebound. Could this improve emission estimates in countries without CO2 monitoring infrastructure? Yañez et al.
The latest generation of Earth System models simulate an expansion of the oxygen minimum zones in the Pacific, but their inner core, where oxygen levels drop to near zero, contracts in the future. Busecke et al.
The reconstructed loss of molybdenum during the Toarcian ocean anoxic event suggests deeply anoxic conditions during this time period allowing massive amounts of organic carbon being buried. Them et al.
Sea spray aerosols play a critical role in atmospheric processes. A new approach is in strong agreement with observations, paving the way for improved models of atmospheric aerosols of oceanic origin. Deike et al.
A new perspective on why fluvial valley have their forms, as a result of intimate interaction between climate, water cycle, and pedo-lithology. Tofelde et al.
EDITORS’ PICKS FROM OTHER JOURNALS
Accurate tide models require self-attraction and loading terms, but can this calculation be done accurately and efficiently for use in global tide and Earth system models? The methods detailed by Barton et al.  are key to the “new wave” of Earth system models that include tides as well as interactive ice sheet models, each of which are relevant to address questions about climate change and its impacts along the world’s coasts. —Stephen Griffies, Editor in Chief, JAMES
Large data sets can be generated using deep learning to improve the design of observation networks for monitoring subsurface flow and transport. Applying deep learning as Chen et al.  have, to existing aquifer observations and statistical models of aquifer heterogeneity, opens new avenues in generating reference data sets to develop rigorous monitoring design and inversion algorithms. —Stefan Kollet, Editor, Water Resources Research
The mostly unknown hydrogen corona of Jupiter’s moon Callisto is created by a global tenuous H2 atmosphere and not by surface water as previously believed, providing the first evidence for H2 in Callisto’s atmosphere. This research from Carberry Mogan et al.  constitutes a large step in our understanding of the Galilean moons and their potential habitability. —Beatriz Sanchez-Cano, Associate Editor, JGR: Planets and Anni Määttänen, Editor, JGR: Planets
Featured Special Collection
Call for Papers for “Climate Change, Global Air Quality, and Society”
Climate change is putting ever-increasing pressures on air quality (e.g., wildfire). At the same time, society is attempting to rapidly decarbonize in order to limit climate change. A body of research over the last two decades has established that climate change can substantially affect global, regional, and local air quality and has illuminated the pathways and mechanisms through which this occurs. This joint special issue will bring together experts from around the world addressing the interlinked problems of threats to air quality from accelerating climate change, and the impact of climate action on air quality. Submitted papers will be tracked according to alignment of topic and areas of emphasis with the distinct but complementary missions of the three participating journals.
In addition, authors with research related to community science can submit supplementary materials to the Community Science Exchange Hub. Authors will be encouraged to submit materials to the Hub in conjunction with the special issue.