Results 61 to 70 of about 525 (158)

An inter-comparison study to estimate zenith wet delays using VLBI, GPS, and NWP models [PDF]

Earth, Planets and Space, 2014
Water vapour is a key variable in atmospheric processes and plays a crucial role in atmospheric motions on a wide range of scales in space and time. The water vapour content is approximately proportional to the zenith wet delay (ZWD) which, in turn, constitutes a crucial parameter in geodetic microwave space techniques (VLBI and GPS).
Behrend, Dirk, Cucurull, Lírull, Vilà, Jordi, Haas, Rüdiger   +3 more
openaire   +1 more source

Detecting Forest Water‐Availability and Biomass Patterns Through a Retrospective Study in a Mediterranean Region

Water Resources Research, Volume 62, Issue 5, May 2026.
Abstract Latent heat (λ $\lambda $ET) fluxes are a major component of the hydrological cycle globally. According to recent models and experimental observations, during droughts, wetter regions respond by increasing λ $\lambda $ET, while drier regions exhibit decreasing trends due to vegetation water stress.
Flavia Tauro, Ashenafi Tadesse Marye, Tommaso De Gregorio, Eloy Suarez Huerta   +3 more
wiley   +1 more source

Regional Egypt tropospheric mapping function model

Alexandria Engineering Journal, 2018
It’s essential to find out the delay caused by the troposphere layer to be able to get more accurate results. The precise positioning is very essential for accurate geodetic applications e.g., Crustal deformation and military purposes.
Ahmed Nabil Mohammed, Mohamed Amin Abdelfatah, Ashraf El-Kutb Mousa, Gamal Saber El-Fiky   +3 more
doaj   +1 more source

A Hybrid Biophysical‐Machine Learning Framework for Diurnal Surface Energy Flux Estimation Using Proximal Sensing

Water Resources Research, Volume 62, Issue 5, May 2026.
Abstract Thermal infrared‐based remote sensing of surface energy fluxes has traditionally relied on high spatial resolution satellite data with revisit frequencies on the order of weeks. In this study, we evaluate a biophysics‐based analytical surface energy balance model for predicting latent energy (LE) and sensible heat (H) fluxes using proximal ...
James F. Cross, Kanishka Mallick, Guler Aslan‐Sungur (Rojda), Andy VanLoocke, Darren T. Drewry   +4 more
wiley   +1 more source

A new vertical reduction model for enhancing the interpolation accuracy of VMF1/VMF3 tropospheric delay products [PDF]

Geoscientific Model Development
Grid-wise Vienna Mapping Functions 1 (VMF1) and Vienna Mapping Functions 3 (VMF3) tropospheric products are widely used to interpolate the a priori zenith hydrostatic delay (ZHD) and zenith wet delay (ZWD) over GNSS (Global Navigation Satellite Systems ...
P. Sun, K. Zhang, K. Zhang, D. Zhu, S. Shi, X. Liu, D. Zhao, M. Zhang, S. Wu   +8 more
doaj   +1 more source

NSF NCAR's In Situ Sensing Facility Measurement System During the Sundowner Wind EXperiment (SWEX)

Geoscience Data Journal, Volume 13, Issue 2, April 2026.
This paper details the Sundowner Wind Experiment (SWEX) datasets, which characterize downslope winds to advance understanding of boundary layer processes and improve wildfire research and forecasting. The comprehensive, quality‐controlled data from various atmospheric observational platforms will be invaluable for future multidisciplinary research ...
Jacquelyn C. Witte, William Brown, Leila Carvalho, Terry Hock, Steven Oncley, Matthew Paulus, Christopher Roden, John Sobtzak, Isabel Suhr, Holger Vömel   +9 more
wiley   +1 more source

Spatial Interpolation of GNSS Troposphere Wet Delay by a Newly Designed Artificial Neural Network Model

Applied Sciences, 2019
Global Navigation Satellite System (GNSS) signals arrive at the Earth in a nonlinear and slightly curved way due to the refraction effect caused by the troposphere. The troposphere delay of the GNSS signal consists of hydrostatic and wet parts.
Mahmut Oguz Selbesoglu
doaj   +1 more source

The restructuring directive's stay: Post‐implementation perspectives and asset‐deployment risks

International Insolvency Review, Volume 35, Issue 1, Page 145-164, Spring 2026.
Abstract The Restructuring Directive addresses the stay's impact on security enforcement but not asset deployment. It leaves uncertainty on how security agreements interact with executory contracts, giving Member States discretion. This affects debtors' ability to dispose of encumbered assets and impacts creditors' contractual rights, ultimately ...
Vincent van Hoof
wiley   +1 more source

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

Determination and interpolation of parameters for precise conversion of GNSS wet zenith delay to precipitable water vapor in Turkey

Acta Geodaetica et Geophysica, 2018
Studies of estimating precipitable water vapor (PWV) from continuous Global Navigation Satellite System (GNSS) stations with high temporal and spatial resolution continuously have become popular in recent years. In this estimation process, the weighted mean temperature (Tm) and the conversion parameter (Q) are the most important parameters to convert ...
Ilke Deniz, Gokhan Gurbuz, Cetin Mekik
openaire   +3 more sources