Results 61 to 70 of about 1,305 (171)

Sensitivity of Spatial Snowmelt Simulations to Radiative Forcing and Model Top Layer Thickness

Water Resources Research, Volume 62, Issue 8, August 2026.
Abstract Hydrologic models applied in snow‐dominated basins are typically evaluated by comparing simulated outputs, such as snow water equivalent and streamflow, with observations. However, this approach may overlook the energy balance aspect of snow modeling. Snowmelt initiation and rate are primarily determined by the net energy balance, which varies
Nicoleta C. Cristea, Jessica D. Lundquist   +1 more
wiley   +1 more source

Segmentation of Oil Spills on Side-Looking Airborne Radar Imagery with Autoencoders

Sensors, 2018
In this work, we use deep neural autoencoders to segment oil spills from Side-Looking Airborne Radar (SLAR) imagery. Synthetic Aperture Radar (SAR) has been much exploited for ocean surface monitoring, especially for oil pollution detection, but few ...
Antonio-Javier Gallego, Pablo Gil, Antonio Pertusa, Robert B. Fisher   +3 more
doaj   +1 more source

Thaw Subsidence of Ice‐Rich Permafrost Near Umiujaq, Nunavik (Québec), Canada: 20 Years of Monitoring Using Ground‐Based Leveling Methods, LiDAR, and UAV Photogrammetry

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 8, August 2026.
Abstract Differential thaw subsidence is one of the main effects of ice‐rich permafrost degradation, especially in the discontinuous permafrost zone. Although thawing of ice‐rich permafrost can lead to thermokarst, water ponding, and major damage to critical northern infrastructure, thaw subsidence is not often monitored due to the lack of long‐term ...
M. St‐Cyr, R. Fortier, J. W. Molson
wiley   +1 more source

Analyses of Atmospheric Turbulence Near Surface Observed by Uncrewed Aerial Vehicle in the Suburban Area of Seoul Metropolitan, South Korea

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract As the use of uncrewed aerial vehicles (UAVs), ranging from small drones to large person‐transport vehicles, continues to expand, detailed wind and turbulence observations near surface in urban areas are crucial for safe flight planning. In summer 2021, a field campaign was conducted in the suburbs of Seoul, South Korea, using a UAV equipped ...
Soo‐Hyun Kim, Jung‐Hoon Kim, Jeonghoe Kim, Jae‐Sik Min   +3 more
wiley   +1 more source

Special issue “GNSS and SAR Technologies for Atmospheric Sensing”

Earth, Planets and Space, 2018
Recent advances in the field of atmospheric and ionospheric sensing by GNSS and SAR technologies were discussed during two workshops held in February 2016 and October 2016 in Italy, hosted by GEOlab of Politecnico di Milano under partial support of the ...
Toshitaka Tsuda, Eugenio Realini, Yoshinori Shoji, Akinori Saito, Masanori Yabuki, Masato Furuya   +5 more
doaj   +1 more source

Analysis of the Charge Structure and Lightning Activity During a Severe Beijing Thunderstorm via an Innovative Balloon‐Borne 3D Electric Field Observation System

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 14, 28 July 2026.
Abstract We developed an innovative balloon‐borne observation system based on China's BeiDou sounding platform that integrates a three‐axis electric field sensor for in‐cloud measurements of thunderstorm electrification. On 13 May 2025, this system was deployed during a severe convective storm over Beijing. In combination with multisource observations,
Ye Tian, Wenbin Gao, Chenyi Shi, Yue Sun, Xuebo Fan, Lei Meng, YongTao Yu, LongBin Zhang, Chen Chang, Jiachun Yang, Jin Li   +10 more
wiley   +1 more source

Postfrontal Deep Convection Over the Southern Ocean and Orographic Precipitation Enhancement Over Tasmania

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 14, 28 July 2026.
Abstract The orographic precipitation enhancement (OPE) generated within wintertime post‐frontal air masses is a prominent climate feature of Tasmania. This study investigates a passage of a cold sector of a mid‐latitude cyclone over the Southern Ocean (SO) and Western Tasmania (WTAS) observed from 2100 UTC 11 July to 0300 UTC 13 July.
Artur Gevorgyan, Steven Siems, Yi Huang, Luis Ackermann, T. Alinejadtabrizi   +4 more
wiley   +1 more source

Linking Interregional NASA Airborne Observations of Near‐Storm Environments to Tropical Oceanic Convective Structure

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 14, 28 July 2026.
Abstract Deep tropical oceanic convection is a key component of the tropical atmosphere, with environmental moisture and vertical wind shear influencing its structure and intensity. However, attempts to generalize convection‐environment relationships across the broad‐scale tropics have produced inconsistent results, partly owing to limits of reanalysis,
Benjamin D. Rodenkirch, Angela K. Rowe
wiley   +1 more source

Gridless Sparse Recovery-based Wind Speed Estimation for Wind-shear Detection Using Airborne Phased Array Radar [PDF]

Radioengineering
The accuracy of wind speed estimation is an important factor affecting wind-shear detection in airborne weather radar. Aiming at the problem that dictionary mismatch in the sparse recovery-based wind speed estimation leads to the performance degradation,
Z. Zheng, J. Lai, Q. Zhang, J. Guo
doaj  

Enhancing High-Precision Detection of Airborne Weather Radar: Sparse Iterative Covariance Matrix Reconstruction and Robust Multithreshold Weather Signal Detection

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
As a critical component for ensuring flight safety, airborne weather radar is required to detect meteorological targets along the flight path in real time and provide pilots with timely weather warnings.
Peng Xiao, Di Wu, Zhongping Yan, Ye Zhou, Daiyin Zhu, Guodong Jin   +5 more
doaj   +1 more source