Results 41 to 50 of about 150 (129)

A Window‐Augmented Machine Learning Approach for Direct GNSS Precipitable Water Vapor Retrieval

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 2, April 2026.
Abstract Global Navigation Satellite Systems (GNSS) provide an effective means for remote sensing of precipitable water vapor (PWV). However, conventional GNSS‐based PWV retrieval approaches rely heavily on auxiliary meteorological parameters, which are frequently unavailable in real time, while most direct retrieval methods use station data aggregated
Zhouao Zheng, Haoyu Wang, Liangke Huang, Ziwei Li, Haojun Li, Hongxing Zhang, Junyu Li, Lilong Liu   +7 more
wiley   +1 more source

TOMO4D Operator for Assimilation of GNSS Tomography‐Derived Water Vapor Fields Into the WRFDA 4DVAR System to Improve Regional Rainfall Forecasting

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 4, April 2026.
Abstract Accurate representation of atmospheric water vapor is crucial for improving numerical weather prediction, particularly over regions with complex topography and sparse observation networks. Although assimilation of Global Navigation Satellite System (GNSS)‐derived integrated products such as zenith total delay or precipitable water vapor can ...
Arash Tayfehrostami, Yazdan Amerian, Saeed Izanlou, Majid Azadi   +3 more
wiley   +1 more source

Major Melting Event on the Ross Ice Shelf, Antarctica, Connected With Enhanced Atmospheric Turbulence

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract The Ross Ice Shelf (RIS) in West Antarctica experienced extensive surface melting in January 2016, driven by warm humid air transported from over the Southern Ocean. Few studies have reported increased atmospheric water vapor and turbulent mixing during this event in this region, where the availability of surface measurements is challenging ...
Dhiman R. Mondal, Pedro Elosegui, Nathra Ramrajvel, Scott Paine   +3 more
wiley   +1 more source

GAM-STTD: a spatiotemporal tropospheric delay correction model for time-series InSAR in complex mountainous regions

International Journal of Digital Earth
Tropospheric delay remains a critical error source in time-series interferometric synthetic aperture radar (TS-InSAR), particularly in mountainous and plateau regions where seasonal stratification and stochastic turbulence coexist.
Shipeng Guo, Xiaoqing Zuo, Jihong Zhang, Xu Yang   +3 more
doaj   +1 more source

Convective Biases in the US DOE Global Storm‐Resolving Model: Insights From Regionally Refined Simulations During the CACTI Campaign

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 5, 16 March 2026.
Abstract Accurately simulating convective processes in complex terrain remains a critical challenge for global storm‐resolving models (GSRMs). This study systematically evaluates moist convective biases in the Regionally Refined Mesh configuration of the U.S.
Tianning Su, Yunyan Zhang, Hsi‐Yen Ma, Adam C. Varble, Peter A. Bogenschutz   +4 more
wiley   +1 more source

Analysis of Spatial and Temporal Characterization of GNSS Tropospheric Parameters During the Extreme Rainfall on ‘9.7’ in Hong Kong

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
On 7 September 2023, Hong Kong experienced a rare extreme rainfall due to the low-pressure trough associated with the remnants of Typhoon “Haikui,” which caused significant casualties and economic losses.
Ming Shangguan, Xiaomei Ren, Shuguang Wu, Huaiqi Ye, Wenkui Li   +4 more
doaj   +1 more source

Interpretation of the Tropospheric Gradients Estimated With GPS During Hurricane Harvey

Earth and Space Science, 2019
During the last decade Global Positioning System (GPS) Continuous Operating Reference Stations networks have become a new important data source for meteorology.
Victoria Graffigna, Manuel Hernández‐Pajares, Mauricio Gende, Francisco Azpilicueta, Pablo Antico   +4 more
doaj   +1 more source

Processes Driving Drift‐Ice Evolution and Its Interaction With the Oceanic and Atmospheric Boundary Layers

Reviews of Geophysics, Volume 64, Issue 1, March 2026.
Abstract Sea ice is a crucial component of polar climate systems and is undergoing substantial changes in both hemispheres due to evolving climatic conditions. Arctic sea ice is transitioning from perennial to seasonal cover, and the Southern Ocean sea ice is exhibiting recent minima and enhanced seasonality.
Jari Haapala, Morven Muilwijk, Ioanna Merkouriadi, Pedro Duarte, Ilker Fer, Mats A. Granskog, Virginie Guemas, Tore Hattermann, Robinson Hordoir, Doroteaciro Iovino, Polona Itkin, Roberta Pirazzini, Felix Pithan, Igor Polyakov, Annette Rinke, Letizia Tedesco, Petteri Uotila, Martin Vancoppenolle, Marcello Vichi, Timo Vihma   +19 more
wiley   +1 more source

Potential of Cost-Efficient Single Frequency GNSS Receivers for Water Vapor Monitoring

Remote Sensing, 2018
Dual-frequency Global Navigation Satellite Systems (GNSSs) enable the estimation of Zenith Tropospheric Delay (ZTD) which can be converted to Precipitable Water Vapor (PWV).
Andreas Krietemeyer, Marie-claire ten Veldhuis, Hans van der Marel, Eugenio Realini, Nick van de Giesen   +4 more
doaj   +1 more source

Kernel‐Based Estimation of Stratospheric Aerosol Radiative Effects From Volcanic and Wildfire Events

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 4, 28 February 2026.
Abstract To facilitate the quantification of the stratospheric aerosol direct radiative effect (ARE), this study develops a suite of aerosol kernels based on Modern‐Era Retrospective Analysis for Research and Applications, Version 2 reanalysis data. The kernels comprise a five‐dimensional data set that includes latitude, longitude, time, wavelength ...
Qiurun Yu, Yi Huang
wiley   +1 more source