Results 91 to 100 of about 897 (200)

Evaluation of Low‐Level Clouds, Temperature, and Surface Radiation Using a Model, Two Reanalyses, and Southern Ocean Observations

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract Low‐level clouds over the Southern Ocean (SO) exert a strong influence on surface radiation, yet their representation in reanalyses and climate models remains uncertain. We evaluated cloud properties and surface radiative fluxes from ERA5, MERRA‐2, and the CAM‐ATRAS model using observations obtained over the SO by Japan's R/V Shirase during ...
Kazutoshi Sato, Jun Inoue, Hitoshi Matsui   +2 more
wiley   +1 more source

Predicting Electrically Generated Hydrogen Oxides From Ultraviolet Radiation Emissions

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 15, 16 August 2026.
Abstract Electrical discharges such as lightning and corona discharges generate extreme amounts of hydroxyl radical (OH), the atmosphere's most important oxidizer, enough for electrical discharges to be a globally significant source of OH. However, there are few field measurements of electrically generated OH (LOH), hindering attempts to better ...
J. M. Jenkins, W. H. Brune
wiley   +1 more source

The Influence of Aged Smoke on Urban Ozone: Aircraft Measurements in Chicago During the 2023 Canadian Wildfires

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 15, 16 August 2026.
Abstract As large wildfires become more frequent and severe in North America due to heightened fuel aridity and fire weather conditions driven by anthropogenic climate change, wildfire smoke has an increasingly important influence on air quality. Transported smoke can impact urban boundary layer ozone (O3) directly, via the entrainment of O3 formed in ...
W. S. Chace, C. Womack, A. Ahern, K. Ball, K. H. Bates, B. Bohn, C. A. Brock, M. Coggon, J. D. Crounse, N. Desai, H. Fuchs, J. Gilman, J. Gristey, H. N. Huynh, R. Jackson, C. M. Jernigan, J. Kaiser, M. Lin, M. Lyu, A. M. Middlebrook, G. A. Novak, A. Novelli, J. Peischl, A. Piasecki, M. A. Robinson, A. Rollins, N. B. Schafer, M. Selby, C. Senff, A. Stainsby, C. E. Stockwell, S. J. Taylor, S. Thakali, V. Treadaway, P. R. Veres, C. Warneke, E. Waxman, P. O. Wennberg, G. M. Wolfe, L. Xu, K. Zuraski, S. S. Brown   +41 more
wiley   +1 more source

Development of an advanced Two-Micron triple-pulse IPDA lidar for carbon dioxide and water vapor measurements

EPJ Web of Conferences, 2018
An advanced airborne triple-pulse 2-μm integrated path differential absorption (IPDA) lidar is under development at NASA Langley Research Center that targets both carbon dioxide (CO2) and water vapor (H2O) measurements simultaneously and independently ...
Petros Mulugeta, Refaat Tamer F., Singh Upendra N., Yu Jirong, Antill Charles, Remus Ruben, Taylor Bryant D., Wong Teh-Hwa, Reithmaier Karl, Lee Jane, Ismail Syed, Davis Kenneth J   +11 more
doaj   +1 more source

Impact of an extreme storm event on a multiple intertidal barred coastal system

Earth Surface Processes and Landforms, Volume 51, Issue 8, August 2026.
Extreme storms do not necessarily cause extreme coastal erosion. Integrated DGPS surveys and SWAN nearshore wave modelling reveal that Storm Barra's peak coincided with a low‐tide stage, allowing multiple intertidal bars (MITBs) to dissipate incoming wave energy before it reached Dundrum Bay's shoreline, highlighting the combined role of tidal stage ...
Melanie Biausque, Emilia Guisado‐Pintado, Derek W. T. Jackson, J. Andrew G. Cooper, Edoardo Grottoli   +4 more
wiley   +1 more source

A 3D Model of Ryegrass Shoot Architecture, Sward Light Interception and Photosynthesis

New Zealand Journal of Agricultural Research, Volume 69, Issue 4, August 2026.
Increasing the photosynthetic capacity of perennial ryegrass (Lolium perenne L.) is required to improve the productivity of pastoral farming in temperate regions. A three‐dimensional (3D) model was constructed of the shoot growth of ryegrass based on plant morphological traits such as tiller angle, leaf angle, leaf width, number of tillers per plant ...
Paul R. Shorten, Jim R. Crush
wiley   +1 more source

Migrating and Nonmigrating Neutral Mass Density Tides From GRACE‐FO Observations for Solar Minimum Conditions

Earth and Space Science, Volume 13, Issue 8, August 2026.
Abstract This study presents the migrating and nonmigrating thermospheric neutral mass density tides from the Gravity Recovery And Climate Experiment Follow‐On (GRACE‐FO) observations under solar minimum conditions (year 2020). The observed densities are first mapped to a reference altitude of 500 km using an empirical model (NRLMSIS 2.0) to remove the
Mukta Neogi, Jens Oberheide
wiley   +1 more source

Analysis of Smoke Transport Over the Northeast US Caused by Wildfires in Canada During June 2023—Leveraging the HRRR‐Smoke Model Predictions and Remote Sensing Observations

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 14, 28 July 2026.
Abstract The intensification of wildland fires across portions of Canada in early June 2023 led to significant smoke transport into the eastern United States, resulting in poor air quality and reduced visibility. Significant degradation of air quality was evident from PM2.5 surface measurements as the smoke plume moved southwards, which was confirmed ...
Y. L. Pichugina, E. J. Strobach, A. W. Brewer, R. Ahmadov, P. S. Bhattacharjee, E. P. James, A. J. Schnell, B. Carroll, S. Baidar, S. Sandberg   +9 more
wiley   +1 more source

Influence of Model Resolution on Simulated Extreme Wildfire Plume Heights During the 2019/2020 Australian New Year Event

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 14, 28 July 2026.
Abstract Pyrocumulonimbus (pyroCb) events, smoke‐infused thunderstorm clouds triggered by intense wildfires under suitable meteorological conditions, are an efficient pathway for transporting smoke to elevated altitudes. In some cases, smoke reaches the upper troposphere and lower stratosphere region, where it can persist for extended time periods and ...
Tabea Unser, Lisa Janina Muth, Corinna Hoose, Gholam Ali Hoshyaripour   +3 more
wiley   +1 more source

Global Characterization of Stratospheric Sulfate Aerosols by the Atmospheric Chemistry Experiment (ACE)

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 14, 28 July 2026.
Abstract Stratospheric sulfate aerosol (SSA) is an important part of the Earth's climate system. SSA climate impact is determined in part by particle composition, which has been measured from orbit. The weight percent of sulfuric acid in SSA has been determined from atmospheric infrared transmittance spectra recorded with the Atmospheric Chemistry ...
Peter Bernath, Manish Bhusal, Michael Lecours, Chris Boone   +3 more
wiley   +1 more source