Results 81 to 90 of about 680,086 (211)

Real-Time Tropospheric Delay Retrieval from Multi-GNSS PPP Ambiguity Resolution: Validation with Final Troposphere Products and a Numerical Weather Model

open access: yesRemote Sensing, 2018
The multiple global navigation satellite systems (multi-GNSS) bring great opportunity for the real-time retrieval of high-quality zenith tropospheric delay (ZTD), which is a critical quality for atmospheric science and geodetic applications.
Cuixian Lu   +6 more
doaj   +1 more source

Gas Measurements Reveal Fractional Degassing and Water Interaction During a Flank Eruption of Pacaya Volcano (Guatemala)

open access: yesGeophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract SO2 flux and gas composition were measured during the 2021 flank eruption of Pacaya Volcano (Guatemala). The SO2 flux, measured with Tropomi, gradually rose from ∼2 to ∼30 kg/s over a 5 month period before the eruption. Field UV camera data showed that >95% of the SO2 was emitted from the summit crater.
Robin Campion   +5 more
wiley   +1 more source

A zenith tropospheric delay correction model based on the regional CORS network

open access: yesGeodesy and Geodynamics, 2012
Tropospheric delay is a primary error source in earth observations and a variety of radio navigation technologies. In this paper, the relationship between zenith tropospheric delays and the elevation and longitude of stations is analyzed using the zenith
Huang Liangke, Liu Lilong, Yao Chaolong
doaj   +1 more source

Role of Shortwave Feedback in Non‐Linear Response to CO2 Forcing in GFDL CM4.0

open access: yesGeophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract Effective climate sensitivity (EffCS) is a key metric for quantifying climate change, yet its uncertainty remains large, primarily due to intermodel differences in cloud feedback. Here, we assess EffCS and climate feedback to an abrupt doubling (2xCO2) and quadrupling (4xCO2) of CO2 over 450 years in GFDL CM4.0. Both runs have comparable EffCS
Sisam Shrestha   +3 more
wiley   +1 more source

Effect of stratosphere-troposphere exchange on the future tropospheric ozone trend [PDF]

open access: yes, 2003
This paper investigates the impact of circulation changes in a changed climate on the exchange of ozone between the stratosphere and the troposphere. We have identified an increase in the net transport of ozone into the troposphere in the future climate ...
Sanderson, M. G.   +5 more
core   +1 more source

Does Polar Warming Asymmetry Exist in Bathy‐Planet Experiments?

open access: yesGeophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract Ocean bathymetry and continental geometry shape ocean circulation, but whether these geographic constraints can sustain polar warming asymmetry in a fully coupled climate system remains unclear. Here we construct a fully coupled “bathy‐planet” configuration (BATHY), in which continental topography is removed and most land surfaces are replaced
Yihan Zhang   +4 more
wiley   +1 more source

Mediterranean Warming Amplified the Convective Environment During the December 13, 2024 Severe Thunderstorm at Rome–Fiumicino Airport

open access: yesAtmospheric Science Letters, Volume 27, Issue 9, September 2026.
A conditional analogue analysis of a severe thunderstorm disrupting Rome–Fiumicino Airport shows that, while synoptic circulation patterns remain largely unchanged since 1979, the thermodynamic environment has significantly warmed. Increased air and sea surface temperatures are linked to higher convective instability, precipitation, and wind shear ...
Tommaso Alberti, Davide Faranda
wiley   +1 more source

An initial investigation of the non-isotropic feature of GNSS tropospheric delay

open access: yesSatellite Navigation
Tropospheric delay is a significant error source in Global Navigation Satellite Systems (GNSS) positioning. Slant Path Delay (SPD) is commonly derived by multiplying Zenith Tropospheric Delay (ZTD) with a mapping function.
Ying Xu   +3 more
doaj   +1 more source

An ERA5‐Based Model for Estimating Tropospheric Delay and Weighted Mean Temperature Over China With Improved Spatiotemporal Resolutions

open access: yesEarth and Space Science, 2019
Tropospheric delay is an important error source in Global Navigation Satellite System (GNSS) positioning and can also be used in water vapor monitoring.
Zhangyu Sun, Bao Zhang, Yibin Yao
doaj   +1 more source

Correcting InSAR Topographically Correlated Tropospheric Delays Using a Power Law Model Based on ERA-Interim Reanalysis

open access: yesRemote Sensing, 2017
Tropospheric delay caused by spatiotemporal variations in pressure, temperature, and humidity in the lower troposphere remains one of the major challenges in Interferometric Synthetic Aperture Radar (InSAR) deformation monitoring applications.
Bangyan Zhu, Jiancheng Li, Wei Tang
doaj   +1 more source

Home - About - Disclaimer - Privacy