Results 101 to 110 of about 897 (200)

Trends and Sensitivities of Low‐Cloud Cover and Top Height From Spaceborne Lidar Observations

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Low clouds effectively cool the Earth by reflecting incoming solar radiation. Detecting low‐level clouds with passive satellite sensors can be ambiguous, whereas active remote sensing instruments directly measure cloud‐top height. Here, we analyze 14 years of spaceborne lidar observations to assess trends in the occurrence of low‐level clouds ...
M. Tesche, H. Andersen, G. Choudhury, T. Goren   +3 more
wiley   +1 more source

Rapid Morphological Changes in the Intertidal Zone of the Ganges‐Brahmaputra Delta Revealed by SWOT Altimetry Mission

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Intertidal zones of the Ganges‐Brahmaputra (GB) delta are among the most active coastal environments worldwide, and quantifying their morphological evolution remains challenging due to rapid change and scarce in situ observations. This study presents a satellite‐based direct quantification of intertidal sediment volume change in the Meghna ...
Nushrat Yeasmin, Laurent Testut, Valérie Ballu, Md Jamal Uddin Khan   +3 more
wiley   +1 more source

Accelerating Ground‐Based Aerosol Retrieval From Shortwave Radiation Using Tabular Foundation Models

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Retrieving aerosol optical properties from broadband surface solar radiation measurements presents a challenging inverse problem that has yet to be fully explored. This study presents a novel framework using optimal estimation (OE) to retrieve aerosol optical depth (AOD) and Ångström exponent, which subsequently serve as regression targets for
Dazhi Yang, Yu Kong, Disong Fu, Yun Chen, Zijing Ding, Xiang'ao Xia, Hongrong Shi   +6 more
wiley   +1 more source

Optical Phased Arrays on Photonic Integrated Circuit Platforms: Challenges, Opportunities, and Future Applications

Nanophotonics, Volume 15, Issue 14, 27 July 2026.
Integrated optical phased arrays are emerging as scalable engines for solid‐state beam steering and programmable wavefront control. This Review maps the field from beam‐steering principles and core building blocks to material platforms, system‐level bottlenecks, and application frontiers, highlighting how heterogeneous integration, aperiodic ...
Jingwei Li, Yuyuan Han, Aoxiang Chen, Pengpeng Li, Xinglin Zhu, Guanbao Zhao, Luohan Peng, Huaibin Zheng   +7 more
wiley   +1 more source

First EarthCARE CPR Observations of Dynamics–Microphysics Coupling in Marine Cold‐Air Outbreak Clouds

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Marine cold‐air outbreak (MCAO) clouds begin as shallow cloud streets near the ice edge and evolve into broken open‐cell convection downstream. Their rapid transitions in cloud structure and microphysics are closely linked to vertical motions, but this interplay has not previously been observed from space. The EarthCARE satellite, carrying the
Jiseob Kim, Ivy Tan, Pavlos Kollias, Bernat Puigdomènech Treserras   +3 more
wiley   +1 more source

Research on the Correction Algorithm for Ozone Inversion in Differential Absorption Lidar

Photonics
Due to the complex and variable nature of the atmospheric conditions, traditional multi-wavelength differential absorption lidar (DIAL) methods often suffer from significant errors when inverting ozone concentrations.
Leyong Li, Chenbo Xie, Jie Ji, Kunming Xing   +3 more
doaj   +1 more source

Marine Aerosol to Refinery Emissions: Transport and Evolution of CCN in the Houston Metropolitan Area and Their Impact on Cloud Formation

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 13, 16 July 2026.
Abstract The Experiment of Sea Breeze Convection, Aerosols, Precipitation and Environment (ESCAPE) campaign aimed to untangle the impacts of contrasting aerosol sources on cloud microphysical properties within deep convective cells using airborne observations with the National Research Council Canada (NRC) Convair CV‐580 research aircraft.
G. C. Roberts, K. Ranjbar, L. Nichman, M. Wolde, C. S. McCluskey, A. Takeishi, R. Patnaude, S. Patil, G. M. McFarquhar, P. Kollias   +9 more
wiley   +1 more source

Record‐Breaking Easterly Dust Transport From North Africa to the Arctic: An Observational Study

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Mineral dust drives Arctic climate variability, but accurate source attribution remains difficult due to plume mixing from the different regions. Using observations and HYSPLIT modeling, we characterize a record‐breaking trans‐continental dust intrusion (March 13–19, 2013) traversing from North Africa to the Arctic. Distinct from single‐source
Yinzhan Chen, Hailing Xie, Sijia Feng, Xichuan Liu, Chuanfeng Zhao, Lang Liu, Shulei Li, Lei Liu   +7 more
wiley   +1 more source

An Improved CH₄ Profile Retrieving Method for Ground-Based Differential Absorption Lidar

Atmosphere
Range-resolved CH4 concentration measurement is important prior data for atmospheric physical and chemical models. Ground-based differential absorption lidar (DIAL) can measure the vertical distribution of CH4 concentration in the atmosphere.
Lu Fan, Yong Wan, Yongshou Dai
doaj   +1 more source

Comparison of CO₂ Vertical Profiles in the Lower Troposphere between 1.6 µm Differential Absorption Lidar and Aircraft Measurements Over Tsukuba. [PDF]

Sensors (Basel), 2018
Shibata Y, Nagasawa C, Abo M, Inoue M, Morino I, Uchino O.   +5 more
europepmc   +1 more source