Results 51 to 60 of about 3,196 (215)
Photochemistry and Photobiology, EarlyView.Three methods for substituting on‐site ambient ultraviolet radiation measurements for personal exposure measurements were investigated. Assuming spatial persistency of measurements from high‐grade instruments delivers lowest uncertainties up to distances of 82 km.
F. Lubitz +7 more
wiley +1 more source
Estimation of GNSS tropospheric products and their meteorological exploitation in Slovakia
Contributions to Geophysics and Geodesy, 2020 This paper discusses the in near–real time processing of Global Navigation Satellite System observations at the Department of Theoretical Geodesy at the Slovak University of Technology in Bratislava.
Martin Imrišek +2 more
doaj +1 more source
Determination of Tropospheric Parameters from ERA Surface Data for Space Geodetic Techniques
Remote Sensing, 2021 This study investigates methods of deriving meteorological parameters needed in space geodetic applications, from the surface data of the numerical weather model (NWM).
Wei Li, Yujin He
doaj +1 more source
Myths and methodologies: Exposure and measurements under normobaric hypoxia
Experimental Physiology, EarlyView.Abstract Usually, settings of normobaric hypoxia underestimate the environmental hypoxia they are supposed to reproduce. The likely steady state of water vapour pressure within the human airways keeps the partial pressure of inspired oxygen very close to the assumed value, but this does not apply to the calculation of environmental hypoxia or ...
Danilo Bondi
wiley +1 more source
Building a Continental‐Scale Geodetic Network: The Plate Boundary Observatory (PBO)
Perspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.Abstract The Plate Boundary Observatory (PBO) transformed the use of geodesy in North America to study crustal deformation and plate boundary processes by establishing a continental‐scale, standardized, open‐access geodetic network. Built and operated by UNAVCO between 2003 and 2018 as part of the National Science Foundation (NSF)‐funded EarthScope ...
Emily E. Zawacki +5 more
wiley +1 more source
Statistical description of tropospheric delay for InSAR: Overview and a new model [PDF]
2007 IEEE International Geoscience and Remote Sensing Symposium, 2007 This paper focuses on statistical modeling of water vapor fluctuations for InSAR. The structure function and power spectral density approaches are reviewed, summarizing their assumptions and results. The linking equations between these modeling techniques are reported.
John P. Merryman Boncori, Johan J. Mohr
openaire +1 more source
Geomatics, Natural Hazards & RiskEarthquakes release energy that triggers crustal deformation and atmospheric disturbances via surface waves, affecting the GNSS tropospheric delay. This study focuses on the 2025 Tibet MW6.8 and Myanmar MW7.9 earthquakes.
Hongzhan Zhou +4 more
doaj +1 more source
Tropospheric Delay Correction Based on a Three-Dimensional Joint Model for InSAR
Remote Sensing, 2019 Tropospheric delays in spaceborne Interferometric Synthetic Aperture Radar (InSAR) can contaminate the measurement of small amplitude earth surface deformation.
Huaping Xu +4 more
doaj +1 more source
Methane Emissions Offsetting With Temporary Carbon Sinks
GCB Bioenergy, Volume 18, Issue 7, July 2026.A time‐explicit framework based on atmospheric impulse–response functions quantifies the CO2 removal required to offset methane warming within 20 years. Constant, variable, and increasing carbon sinks each demand different removal masses, demonstrating that sink timing—not just permanence—determines the climate value of temporary carbon storage ...
Hans‐Peter Schmidt, Nikolas Hagemann
wiley +1 more source
Geosynchronous synthetic aperture radar: design and applications [PDF]
, 2009 Synthetic Aperture Radar (SAR) imaging from geosynchronous orbit has significant potential advantages over conventional low-Earth orbit (LEO) radars, but also challenges to overcome.
Bruno, Davide
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