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Earth & Environmental Sciences Preprint PDF DOI

The Influences of Hydrogen-Silicate-Iron Miscibility on the Demographics of Sub-Neptunes and Super-Earths

Edward D. Young, Aaron Werlen ยท 2026

Models based on variable miscibility among hydrogen, molten silicate, and molten iron, coupled with atmospheric escape, can reproduce the observed occurrence density structure of sub-Neptunes and supeโ€ฆ

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Earth & Environmental Sciences Preprint PDF DOI

Physically-Informed Fuzzy Clustering of Vertical Sounding Ionograms

Oleg I.Berngardt, Sergey N.Ponomarchuk ยท 2026

This paper presents a physically-informed fuzzy clustering of vertical sounding ionograms for automatically separating the ionogram into tracks suitable for further interpretation and determining theiโ€ฆ

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Earth & Environmental Sciences Preprint PDF DOI

Quantifying the safe operating space for the Amazon rainforest under climate change and deforestation

Jonathan Kronke, Arie Staal, Jonathan F. Donges, Johan Rockstrom, Nico Wunderling ยท 2026

The Amazon rainforest is considered one of the core tipping elements in the climate system with a potential tipping point from rainforest to savannah between 2 and 6 {\deg}C of global warming. Howeverโ€ฆ

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Physics Preprint PDF DOI

Diffuse Gamma-ray Emission Around 4FGL J1626.0-4917

Ziwei Ou, Jie Wang ยท 2026

Extended gamma-ray sources provide significant information about particle propagation. 4FGL J1626.0-4917 was labeled as an unassociated source in 4FGL catalog without known counterparts at other wavelโ€ฆ

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Earth & Environmental Sciences Preprint PDF DOI

Thermal instability and rocky planetesimal formation in the inner regions of protoplanetary disks

Ryo Kato, Takahiro Ueda, Satoshi Okuzumi ยท 2026

The inner regions of protoplanetary disks are promising formation sites of rocky planetesimals. Theoretical studies have proposed a scenario in which thermal ionization activates the magnetorotationalโ€ฆ

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Mathematics Preprint PDF DOI

Renormalized Solutions for a Class of Nonlinear Parabolic Equation with a Lower Order Term and Variable Exponents

Chunjin Li, Shijun Li, Shaopeng Xu ยท 2026

We consider a class of nonlinear parabolic equations \[ \dfrac{\partial}{\partial t} b(u)-\nabla \cdot (A(x,t,u,\nabla u))+H(x,t,\nabla u)=f , \] where $H$ is a nonlinear lower order term satiโ€ฆ

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Earth & Environmental Sciences Preprint PDF DOI

The Solar System Notification Alert Processing System (SNAPS): Public access to SNAPS data and products

David E. Trilling, Michael Gowanlock, Revanth Munugala, Daniel R. Kramer, Maria Chernyavskaya, Erin Clark, Graceson Mule, Savannah Chappus ยท 2026

The Solar System Notification Alert Processing System, SNAPS, is a downstream broker that ingests moving object data from ZTF and LSST and serves these data and derived properties to the public. This โ€ฆ

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AI & Data Science Preprint PDF DOI

Towards Generalizable Mapping of Hedges and Linear Woody Features from Earth Observation Data: a national Product for Germany

Thorsten Hoeser, Verena Huber-Garcia, Sarah Asam, Ursula Gessner, Claudia Kuenzer ยท 2026

Hedges and other linear woody features provide valuable ecosystem services, particularly within intensively managed agricultural landscapes. They are key elements for climate adaptation and biodiversiโ€ฆ

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Earth & Environmental Sciences Preprint PDF DOI

Estimating the Kinetic Energy Spectrum from the Second-Order Velocity Structure Function using a Regularized Fitting Approach

Ayantika Bhattacharjee, Spencer Jones, Dhruv Balwada, Shane Elipot, Manuel Gutierrez-Villanueva ยท 2026

Ocean turbulence plays a key role in shaping large-scale circulation, heat uptake, and biogeochemical processes. The kinetic energy (KE) wavenumber spectrum is a fundamental diagnostic, quantifying hoโ€ฆ

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Earth & Environmental Sciences Preprint PDF DOI

Formation and Trapping of CO2 from Cryogenic Irradiation of Carbonate

Ashma Pandya, Swaroop Chandra, Michael E. Brown ยท 2026

The detection of CO2 on the Jovian satellite Europa by Galileo NIMS and recent mapping of the leading side by JWST has revealed that it is most concentrated in geologically young terrains, and its v3 โ€ฆ

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Physics Preprint PDF DOI

First Observation of Multiple Very-Near-Earth Reconnection Events During a Single Storm Main Phase

Fekireselassie Beyene, Vassilis Angelopoulos, Christine Gabrielse, Yoshizumi Miyoshi, Iku Shinohara, Shoichiro Yokota, Satoshi Kasahara, Kunihiro Keika, Tomoaki Hori, Yasumasa Kasaba, Yoshiya Kasahara, Ayako Matsuoka, Mariko Teramoto, Kazuhiro Yamamoto ยท 2026

For the first time, this paper presents three very-near-Earth reconnection (VNERX) events observed within the same 12-hour-long storm main phase. The THEMIS inner probes observed the hallmarks of threโ€ฆ

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Earth & Environmental Sciences Preprint PDF DOI

Adaptive Self-Supervised Surface-Related Multiple Suppression

Huan Song, Shijun Cheng, Huanhuan Tang, Wei Ouyang, Weijian Mao ยท 2026

Effective suppression of surface-related multiples is essential to prevent imaging artifacts and erroneous structural interpretations. While conventional approaches rely on accurate priors or subsurfaโ€ฆ

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Earth & Environmental Sciences Preprint PDF DOI

Searching for GEMS: Three warm Saturns and a super-Jupiter orbiting four early M-dwarfs

Pranav H. Premnath, Paul Robertson, Shubham Kanodia, Caleb I. Canas, Arvind F. Gupta, Michael Rodruck, Te Han, Henry A. Kobulnicky, Andrea S.J. Lin, Andrew Monson, Libby Allely, Cooper Bailey, Alexina Birkholz, Zack Beagle, Philip Choi, Nez Evans, Mark E. Everett, Anna Fong, S. Nick Justice, Ian Karfs, Sage Santomenna, Elsa Van Dyke, Arissa Williams, Chad F. Bender, William D. Cochran, Scott A. Diddams, Rachel B. Fernandes, Mark R. Giovinazzi, Samuel Halverson, Daniel M. Krolikowski, Suvrath Mahadevan, Michael W. McElwain, Joe P. Ninan, Arpita Roy, Gudmundur Stefansson, Jason T. Wright ยท 2026

We report the confirmation and characterization of four transiting giant planets orbiting early-M dwarfs discovered by the Searching for Giant Exoplanets around M-dwarf Stars (GEMS) survey: TOI-7189 bโ€ฆ

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Earth & Environmental Sciences Preprint PDF DOI

Meta-learning-enhanced implicit full waveform inversion

Huan Song, Shijun Cheng, Huanhuan Tang, Wei Ouyang, Weijian Mao ยท 2026

Implicit full waveform inversion (IFWI) introduces implicit neural representations to parameterize the subsurface velocity model as a continuous function of spatial coordinates, which alleviates the dโ€ฆ

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Earth & Environmental Sciences Preprint PDF DOI

Designing Solutions to Geophysical Inverse Problems by Changing Variables

Xuebin Zhao, Andrew Curtis, Klaus Mosegaard ยท 2026

Geoscientists often solve inverse problems to estimate values of parameters of interest given relevant data sets. Bayesian inference solves these problems by combining probability distributions that dโ€ฆ

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Earth & Environmental Sciences Preprint PDF DOI

The effect of spectral resolution on biosignature detection via reflected light observations of the Earth through time

Samantha Gilbert-Janizek, Jacob Lustig-Yaeger, Joshua Krissansen-Totton ยท 2026

NASA's Habitable Worlds Observatory (HWO) will search for biosignatures on Earth-like exoplanets using reflected light spectroscopy. A critical instrument design parameter is resolving power, which muโ€ฆ

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Earth & Environmental Sciences Preprint PDF DOI

The tale of the 3 planets: 3D cloud feedback enhances the spectral diversity of warm Jupiters

Nishil Mehta, Vivien Parmentier, Xianyu Tan, Elspeth K. H. Lee, Tristan Guillot, Matthew M. Murphy, Thomas P. Greene, Thomas G. Beatty, Taylor J. Bell, Jonathan J. Fortney, Michael R. Line, Sagnick Mukherjee, Kazumasa Ohno, Everett Schlawin, Anastasia Triantafillides, Luis Welbanks, Lindsey S. Wiser ยท 2026

JWST has shown a large diversity in warm Jupiter spectra, despite only small variations in the planetary parameters. However, the main driver of this diversity remains unclear. We aim to identify the โ€ฆ

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Earth & Environmental Sciences Preprint PDF DOI

Dynamics of East Atlantic seed vortex populations in global km-scale models

Ben Maybee, Francesca Morris, Juliane Schwendike, Ashar Aslam, Calum Scullion, Richard W. Jones, Dasha Shchepanovska, Kevin I Hodges ยท 2026

Africa is the primary source of cyclonic vortices over the tropical Atlantic. Over both land and sea, these vortices are entwined with deep convective activity, with the majority being African Easterlโ€ฆ

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Earth & Environmental Sciences Preprint PDF DOI

Oxygen and nitrogen isotopologues on cold COCONUTS-2b observed with MIRI/MRS

H. Kuhnle, E. C. Matthews, P. Molliere, P. Patapis, Z. Zhang, E. Nasedkin, D. Gasman, N. Whiteford, H. S. Wang, M. Ravet, G. Chauvin, M. Bonnefoy, D. Barrado, A. M. Glauser, S. P. Quanz ยท 2026

Linking the composition of gas giant planets to their formation paths has long been a goal in exoplanet science. Especially, cold gas giants with temperatures below $\sim$500K have been out of reach fโ€ฆ

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Earth & Environmental Sciences Preprint PDF DOI

The Influence of the Fractal Dimension on Dust Evolution in Protoplanetary Disks

J. E. Scholl, C. P. Dullemond, C. Dominik ยท 2026

Context: During the first stages of dust coagulation in protoplanetary disks, the dust aggregates are expected to have a high degree of porosity. Most models of dust growth, however, do not take this โ€ฆ

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