Results 81 to 90 of about 941 (199)

How Can the Latent Heat Entrainment Flux in the Convective Boundary Layer be Characterized?

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 20, 28 October 2026.
Abstract A proposed theoretical description of the latent heat entrainment flux at the top of a convective boundary layer (CBL) was tested. It is related to the vertical velocity scale times the ratio of the water vapor mixing ratio (WVMR) gradient to the Brunt‐Väisälä frequency. This relation was tested with different LiDAR and radiosonde measurements.
Linus von Klitzing, David D. Turner, Diego Lange, Christoph Senff, Volker Wulfmeyer   +4 more
wiley   +1 more source

Effects of Mineralogical Inhomogeneity on Aggregate Dust Optical Properties and Lidar Observables

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Dust aerosols comprise irregular grains and aggregates with various mineralogical mixtures. However, most optical models use effective refractive indices to represent particles. This study develops an inhomogeneous aggregate model assigning mineral‐dependent refractive indices to constituent elements and representing global mineral volume ...
Dongchen Li, Ping Yang
wiley   +1 more source

Triple-Pulsed Two-Micron Integrated Path Differential Absorption Lidar: A New Active Remote Sensing Capability with Path to Space

EPJ Web of Conferences, 2016
The two-micron wavelength is suitable for monitoring atmospheric water vapor and carbon dioxide, the two most dominant greenhouse gases. Recent advances in 2-μm laser technology paved the way for constructing state-of-the-art lidar transmitters for ...
Singh Upendra N., Refaat Tamer F., Petros Mulugeta, Yu Jirong   +3 more
doaj   +1 more source

Addressing stationarity violations in double‐observer drone surveys: A koala case study

Ecological Solutions and Evidence, Volume 7, Issue 4, October–December 2026.
Independent drone observers survey the same area with a temporal offset. Movement between passes violates stationarity, causing re‐detections of the same individual to be misclassified as independent observations and inflating abundance estimates. Incorporating movement information using a hidden Markov model links plausible re‐detections and reduces ...
Tim S. Jessop, Ben Hope, Elliot Webb, Matthew Clements, Chad Beranek, Mark Le Pla   +5 more
wiley   +1 more source

Measurements of Water Vapor Profiles with Compact DIAL in the Tokyo Metropolitan Area

EPJ Web of Conferences, 2018
In recent years, the frequency of occurrence of locally heavy rainfall that can cause extensive damages, has been increasing in Japan. For early prediction of heavy rainfall, it is useful to measure the water vapor vertical distribution upwind cumulus ...
Abo Makoto, Sakai Tetsu, Le Hoai Phong Pham, Shibata Yasukuni, Nagasawa Chikao   +4 more
doaj   +1 more source

Wavelength‐Multiplexed 2D Beam Steering via a Passive Diffractive Network

Advanced Optical Materials, Volume 14, Issue 37, 9 October 2026.
Illustration of a wavelength‐multiplexed diffractive beam steering system, which is composed of K cascaded diffractive layers, each containing phase‐modulating elements that are jointly optimized using deep learning–based optimization. When illuminated with a set of wavelengths {λ1,λ2,…,λNw}$\{ {{{\lambda }_1},{{\lambda }_2},\ldots ,{{\lambda }_{{{N}_w}
Che‐Yung Shen, Yuhang Li, Çağatay Işıl, Tianyi Gan, Mona Jarrahi, Aydogan Ozcan   +5 more
wiley   +1 more source

High Repetition Rate Mid-Infrared Differential Absorption Lidar for Atmospheric Pollution Detection. [PDF]

Sensors (Basel), 2020
Gong Y, Bu L, Yang B, Mustafa F.
europepmc   +1 more source

TrustSpec: Simulation‐Grounded Physics‐Driven Spectral Inversion With Uncertainty Quantification for SiC Epitaxial Thickness Metrology

Engineering Reports, Volume 8, Issue 10, October 2026.
TrustSpec reuses a single spectral digital twin both to train a deep ensemble and to verify each prediction via analysis‐by‐synthesis. A two‐channel trust plane automatically releases, reviews, or rejects every SiC epitaxial thickness reading, achieving 0.110 μm mean error with full out‐of‐distribution rejection in simulation.
Zijie Nie, Shunlin Yang, Qingjie Guo
wiley   +1 more source

Integrated Photonic Modulator Circuit With Programmable Intensity and Phase Modulation Response

Laser &Photonics Reviews, Volume 20, Issue 19, 7 October 2026.
A platform‐agnostic programmable modulation circuit is introduced to enable tunable and universal optimization of integrated photonic modulators. By flexibly controlling carrier amplitude and phase, the approach adapts to diverse device characteristics without structural redesign.
Hong Deng, Yu Zhang, Xiangfeng Chen, Wim Bogaerts   +3 more
wiley   +1 more source

Using synthetic models to understand the detecting ability of ground‐penetrating radar for water‐conducting structures in the bedrock of formerly glaciated site

Near Surface Geophysics, Volume 24, Issue 5, Page 669-692, October 2026.
Abstract Utilizing synthetic models for the interpretation of ground‐penetrating radar (GPR) profiles can aid in the detection of hydrogeological structures by identifying their signatures. In this study, finite difference (FD) forward modelling was used to understand the detection ability of 50 MHz GPR for (1) the quaternary deposit–bedrock contact ...
Annika Katarina Åberg, Salla Eeva, Emilia Koivisto, Susanne Charlotta Åberg, Seija Kultti, Kirsti Korkka‐Niemi   +5 more
wiley   +1 more source