Results 201 to 210 of about 321,608 (299)

Application and Evaluation of a NOAA GFS‐Driven Air Quality Model Using CMAQv5.4 and High‐Resolution Emissions: FIREX‐AQ 2019

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 9, 16 May 2026.
Abstract The National Air Quality Forecast Capability (NAQFC) provides numerical forecasting guidance of air quality up to 72 hr ahead over the United States. In this study, we evaluate the changes in its prediction skills by updating the Community Multiscale Air Quality (CMAQ) modeling system from version 5.3.1 to 5.4 and utilizing a high‐resolution 1‐
Kiarash Farzad   +13 more
wiley   +1 more source

Downward Positive Leader Propagation Modes and Their Effects in Positive Cloud‐to‐Ground Lightning Characteristics

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 9, 16 May 2026.
Abstract The return stroke in a cloud‐to‐ground (CG) flash is initiated when the downward leader either reaches the ground or connects with an upward leader from a grounded structure. Unlike negative downward leaders, which typically propagate in a highly branched manner, downward positive leaders (DPLs) can propagate either in a branched or unbranched
Marcelo M. F. Saba   +13 more
wiley   +1 more source

Lightning Outbreaks at the Mature Stage of Tropical Cyclone: Case Study for Hurricane Dorian (2019)

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 9, 16 May 2026.
Abstract The relationship between tropical cyclone (TC) lightning activity and intensity change has been examined for nearly 30 years, yet a clear consensus remains elusive, reflecting the complexity of the processes governing TC lightning. This study investigates the physical mechanisms that triggered inner‐core lightning outbreaks during the mature ...
Taiga Tsukada   +4 more
wiley   +1 more source

Multi-ignition fire complexes drive extreme fire years and impacts. [PDF]

open access: yesSci Adv
Scholten RC   +13 more
europepmc   +1 more source

Pseudo‐Radar Reflectivity by Applying U‐Net Models to Global Passive Microwave Brightness Temperatures

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 9, 16 May 2026.
Abstract Spaceborne radar systems such as the Global Precipitation Measurement Mission (GPM)'s core satellite Dual‐frequency Precipitation Radar (DPR) provide global insight into precipitation structure, storm morphology, and hydrological cycles. However, their limited spatial and temporal sampling and high cost constrain their ability to continuously ...
Florian Morvais, Chuntao Liu
wiley   +1 more source

Otitis in pet guinea pigs: Causes, clinical signs, treatment and outcomes

open access: yesVeterinary Record, Volume 198, Issue 9, Page e385-e395, 2/9 May 2026.
Abstract Background Otitis is a major disease impacting both pet guinea pigs and laboratory guinea pigs that are used as models in human otological studies. Methods Medical records from two veterinary clinics were retrospectively reviewed to identify guinea pigs diagnosed with computed tomography (CT)‐confirmed otitis between 2014 and 2023.
Patricia Muffat‐es‐Jacques   +5 more
wiley   +1 more source

Measuring location and properties of very high frequency sources emitted from an aircraft flying through high clouds. [PDF]

open access: yesNat Commun
Scholten O   +13 more
europepmc   +1 more source

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