Results 201 to 210 of about 15,743 (271)

Spectral Irradiance Observations and Projections for Solar Cycle 25

open access: yesEarth and Space Science, Volume 13, Issue 4, April 2026.
Abstract The Ozone Monitoring Instrument (OMI) on the Aura satellite makes near‐daily measurements of solar spectral irradiance (SSI) at wavelengths between 265 and 500 nm for instrument calibration purposes. The low degradation and exceptional stability of OMI's calibration during its lifetime facilitates the creation of a new 18‐year OMI Version 7 ...
Matthew T. DeLand   +3 more
wiley   +1 more source

Emissions from burned structures in wildfires as significant yet unaccounted sources of US air pollution. [PDF]

open access: yesNat Commun
Tang W   +14 more
europepmc   +1 more source

Spatial Spillover and Differential Impacts of Urban Shrinkage on Air Pollutants: Implications for Sustainable Urban Futures

open access: yesEarth's Future, Volume 14, Issue 4, April 2026.
Abstract Rapid urbanization has historically been linked to escalating air pollution, yet the environmental consequences of urban shrinkage—a growing global trend of population decline and economic downturn—remain underexplored. While theory suggests shrinkage might alleviate pollution through reduced anthropogenic activities, empirical evidence on the
Fengdi Ma, Yulin Yan, Liang Wan
wiley   +1 more source

Using Machine Learning to Uncover Ecological Mechanisms Controlling Abundance of Phytoplankton Size Classes From Large‐Scale Observations

open access: yesGlobal Biogeochemical Cycles, Volume 40, Issue 4, April 2026.
Abstract Phytoplankton size classes (PSCs) and Phytoplankton functional types (PFTs) determine many fundamental biogeochemical processes including nutrient uptake, energy transfer through marine food webs, ocean carbon export, and gas exchange with the atmosphere. Discerning the causes of spatio‐temporal variability of PSCs is a scientific priority for
Sandupal Dutta, Anand Gnanadesikan
wiley   +1 more source

Runaway coral-algal dysbiosis may be responsible for rapid coral tissue loss. [PDF]

open access: yesSci Rep
Rossin AM   +19 more
europepmc   +1 more source

Mapping Active Lava Flows from the 2022 Mauna Loa Eruption Using NOAA-20 and S-NPP Satellite Data

open access: gold
Suci Ramayanti   +5 more
openalex   +1 more source

ULF Wave Modulation of Energetic Electron Precipitation Caused by the Self‐Limiting of Space Radiation: May 2024 Superstorm Observations

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract The May 2024 geomagnetic superstorm provided the opportunity to explore how strong wave‐particle interactions affect energetic electron precipitation under intense driving. Using coordinated measurements from a balloon‐borne Timepix‐based X‐ray detector, ground‐based riometers and magnetometers, and Arase satellite observations, we identified ...
L. Olifer   +22 more
wiley   +1 more source

Diversification of diterpene biosynthesis occurred early in octocoral evolution. [PDF]

open access: yesProc Natl Acad Sci U S A
Burkhardt I   +8 more
europepmc   +1 more source

Global Primary and Secondary Microseism Multi‐Decade Geographic Variation, Secular Intensification, and Period Lengthening

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.
Abstract Earth's long period background seismic wavefield is dominated by two distinct processes that couple ocean wave energy to a global microseism wavefield. We assess global microseism intensity in the secondary (4–10 s) and primary (14–20 s) bands, and across eight 2 s‐wide period bands between 4 and 20 s.
Richard C. Aster   +4 more
wiley   +1 more source

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