Results 51 to 60 of about 506 (156)

Assimilation of zenith total delays in the AROME France convective scale model: a recent assessment [PDF]

Tellus: Series A, Dynamic Meteorology and Oceanography, 2015
The impact of assimilating GPS zenith total delays (ZTD) in the convective scale model AROME is assessed over a 1-month period in summer 2013. The experimental set-up is similar to the current operational usage at Météo-France where the observing system ...
Jean-Francois Mahfouf, Furqan Ahmed, Patrick Moll, Felix N. Teferle   +3 more
doaj   +1 more source

Impacts of Stochastic Modeling on GPS-derived ZTD Estimations

, 2004
GPS-derived ZTD (Zenith Tropospheric Delay) plays a key role in near real-time weather forecasting, especially in improving the precision of Numerical Weather Prediction (NWP) models. The ZTD is usually estimated using the first-order Gauss-Markov process with a fairly large correlation, and under the assumption that all the GPS measurements, carrier ...
Jin, S, Wang, J
openaire   +3 more sources

Atmospheric Water Vapor and Precipitation Coupling in Southwestern South America

Geophysical Research Letters, Volume 52, Issue 24, 28 December 2025.
Abstract Most studies linking atmospheric water vapor and precipitation emphasize short records, tropical regions, or the Northern Hemisphere. Long‐term variability of water vapor and its coupling with precipitation remain poorly understood across strong latitudinal and climatic gradients.
Raúl Valenzuela, Jorge Jara, Cristian Martinez‐Villalobos   +2 more
wiley   +1 more source

Variational Bias Correction of GNSS ZTD in the HARMONIE Modeling System

Journal of Applied Meteorology and Climatology, 2016
AbstractTo fill the gap in the observation system for humidity, the HIRLAM–ALADIN Research on Mesoscale Operational NWP in Euromed (HARMONIE) limited-area high-resolution kilometer-scale model has been prepared for assimilation of Global Navigation Satellite System (GNSS) zenith total delay (ZTD) observations. The observation-processing system includes
Sánchez Arriola, Jana, Lindskog, Magnus, Thorsteinsson, Sigurdur, Bojarova, Jelena   +3 more
openaire   +2 more sources

Satellite Geodesy Reveals Shallow, Transient Magma Intrusions at Sotará Volcano, Colombia

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 12, December 2025.
Abstract Sotará is a little‐known andesitic‐dacitic stratovolcano in southwestern Colombia. Although there are no recorded historical eruptions, the volcano shows clear evidence of geothermal activity, deformation, and volcano‐tectonic seismicity. Its remote location and rugged terrain pose challenges for access and routine monitoring.
Rosa Alpala, Jorge Alpala, Patricia A. Rosell, Leonardo D. Euillades, Pablo A. Euillades, Maurizio Battaglia   +5 more
wiley   +1 more source

Prescription Opioid Misuse and the Perceived Likelihood of Future Suicidal Behavior: Considering the Role of Suicide Capability Dimensions

Suicide and Life-Threatening Behavior, Volume 55, Issue 6, December 2025.
ABSTRACT Introduction In the past two decades, suicide attempts and deaths involving prescription opioids have sharply increased. Research is needed to understand how prescription opioid misuse may increase suicide risk. Contemporary suicide theories suggest opioid use may increase suicide capability by increasing pain tolerance, altering fears related
Zachary T. DeMoss, Matthew T. Tull, Kim L. Gratz   +2 more
wiley   +1 more source

Research on Applicability of GNSS PWV Data in Northeast China and Its Application in Intelligent Precipitation Prediction

Earth and Space Science, Volume 12, Issue 10, October 2025.
Abstract Atmospheric water vapor is an important factor in the formation and evolution of extreme weather events, such as heavy rainfall, typhoons, and major droughts and floods. We analyzed the applicability of precipitable water vapor (PWV) values from the Global Navigation Satellite System Meteorology (GNSS/MET) stations in northeastern China.
Yang Liu, Gen Wang, Tiening Zhang, Ping Wang, Bing Xu, Jinyi Xia   +5 more
wiley   +1 more source

A Refined Spatiotemporal ZTD Model of the Chinese Region Based on ERA and GNSS Data

Remote Sensing
Empirical tropospheric models can improve the performance of GNSS precise point positioning (PPP) by providing a priori zenith tropospheric delay (ZTD) information.
Yongzhao Fan, Fengyu Xia, Zhimin Sha, Nana Jiang   +3 more
doaj   +1 more source

Active Diffusion Controlled Dual Stability in Thermoelectrics for Sustainable Heat Harvesting

Advanced Materials, Volume 37, Issue 38, September 25, 2025.
Introducing a Mg interlayer at the junction simultaneously stabilizes Mg3(Bi,Sb)2 materials and contacts for over 100 days. This dual stabilization derives from suppressing detrimental Mg diffusion and compensating for Mg loss, thereby maintaining an outstanding power density of 0.45 W cm−2 and remarkable conversion efficiency of 8.6% in aged modules ...
Longquan Wang, Airan Li, Xinzhi Wu, Jiankang Li, Takeo Ohsawa, Takao Mori   +5 more
wiley   +1 more source

Analysis of the Synergistic Effect of Water Vapor, Thermodynamics, and Dynamics of the Heavy Rainfall Over Henan Province, China in July 2021

Meteorological Applications, Volume 32, Issue 5, September/October 2025.
In this study, a record‐breaking rainfall is analyzed based on the observation data and reanalysis data. The overlay of precipitation provided by both dynamic delivery from the southeast and cloud microphysical production over Zhengzhou was the main cause of the rainfall under the background of an atypical weak environmental field. ABSTRACT During July
Yang Yu, Rong Wan, Zhikang Fu
wiley   +1 more source