Results 61 to 70 of about 1,220 (193)
Capturing Extreme Water Vapor and Instability With High‐Resolution GNSS Monitoring
Atmospheric Science Letters, Volume 27, Issue 2, February 2026.This study used data from a high‐resolution Global Navigation Satellite System network (< 10 km spacing), including private stations, to analyze water vapor structure during a heavy rainfall event in Japan. The network captured localized extreme precipitable water vapor (> 70 mm) and a moist absolutely unstable layer near the humid core.
Mikiko Fujita
wiley +1 more source
Impact Analysis of processing strategies on Long-term GPS ZTD
, 2023 Abstract. Homogenized atmospheric water vapor is an important prerequisite for climate analysis. Compared with other techniques, GPS has inherent homogeneity advantage, but it still requires reprocessing and homogenization to eliminate impacts of applied strategy and observation environmental changes where a selection of proper processing strategies is
Jingna Bai +6 more
openaire +2 more sources
A Novel Robust High‐Precision Ionospheric Delay Modeling for PPP‐RTK Using Crowdsourced Data
Space Weather, Volume 24, Issue 2, February 2026.Abstract The performance of PPP‐RTK is critically dependent on the quality of ionospheric corrections derived from a reference network. While the proliferation of mass‐market Global Navigation Satellite System (GNSS) devices offers a promising crowdsourcing opportunity to densify or replace this infrastructure, it introduces the formidable challenge of
Bo Wang +6 more
wiley +1 more source
Assimilation of GPS-ZTD in meteorological models by 3D-Var
, 2018 The purpose of the data assimilation is to optimally use all the available information, to determine as accurately as possible the state of the atmosphere. We show the assimilation of the GPS-ZTD (Global Positioning System - Zenith Total Delay) by a 3D-Var data assimilation system that can be used in cycling mode with the Regional Atmospheric Modeling ...
Alessandra Mascitelli +5 more
+7 more sources
IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.This study focuses on the critical challenge of selecting an overall optimal ISB stochastic model to improve GNSS PPP performance, which establishes a comprehensive assessment framework integrating positioning accuracy, convergence time, ISB characteristics, residual analysis, correlation metrics and physical mechanism interpretation.
Ban Zhao
wiley +1 more source
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 +2 more
wiley +1 more source
Reduction of ZTD outliers through improved GNSS data processing and screening strategies
, 2017 . Though Global Navigation Satellite System (GNSS) data processing has been significantly improved over years it is still commonly observed that Zenith Tropospheric Delay (ZTD) estimates contain many outliers which are detrimental to meteorological and ...
Katarzyna Stepniak +2 more
core +1 more source
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 +5 more
wiley +1 more source
Real-time ZTD from GPS, Galileo, GPS+Galileo over 2019
, 2020 Time series of real-time ZTD from GPS-only, Galileo-only and GPS+Galileo real-time PPP solution calculated in GNSS-WARP software.The study has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie ...
Hadas, T (via Mendeley Data)
core +1 more source
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 +2 more
wiley +1 more source