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   Articles with "zenith" as a keyword



Global, spatially explicit modelling of zenith wet delay with XGBoost

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recommendations! Published in 2024 at "Journal of Geodesy"

DOI: 10.1007/s00190-024-01829-2

Abstract: Radio signals transmitted by Global Navigation Satellite System (GNSS) satellites experience tropospheric delays. While the hydrostatic part, referred to as zenith hydrostatic delay (ZHD) when mapped to the zenith direction, can be analytically modelled with… read more here.

Keywords: wet delay; zwd; model; zenith wet ... See more keywords
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Influence of sun zenith angle on canopy clumping and the resulting impacts on photosynthesis

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recommendations! Published in 2020 at "Agricultural and Forest Meteorology"

DOI: 10.1016/j.agrformet.2020.108065

Abstract: Abstract Addressing the impact of vegetation architecture on shortwave radiation transfer in land surface models is important for accurate weather forecasting, carbon budget estimates, and climate predictions. This paper investigates to what extent it is… read more here.

Keywords: impacts photosynthesis; zenith; photosynthesis; transfer ... See more keywords

High-latitude F region large-scale ionospheric irregularities under different solar wind and zenith angle conditions

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recommendations! Published in 2017 at "Advances in Space Research"

DOI: 10.1016/j.asr.2016.10.010

Abstract: Abstract A numerical model is used to study systematically the evolution of large scale irregularities depending on the IMF Bz and By components, solar zenith angle (seasonal and daily variation), solar and geomagnetic activity. The… read more here.

Keywords: large scale; zenith; high latitude; zenith angle ... See more keywords

Resolution limiting factors in low-energy cascade zenith angle reconstruction with the IceCube Upgrade

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recommendations! Published in 2025 at "Journal of Instrumentation"

DOI: 10.1088/1748-0221/20/06/p06022

Abstract: The IceCube Neutrino Observatory includes low energy extensions such as the existing DeepCore subarray and the upcoming IceCube Upgrade, which will consist of seven new strings of photosensors with denser instrumentation than the existing array.… read more here.

Keywords: icecube; resolution; zenith angle; zenith ... See more keywords

#362 Dosing low, winning high: unlocking the promise of endothelin antagonism for the treatment of CKD in the zibotentan/dapagliflozin ZENITH trials

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recommendations! Published in 2024 at "Nephrology Dialysis Transplantation"

DOI: 10.1093/ndt/gfae069.702

Abstract: The Phase 2b ZENITH-CKD trial demonstrated that combined treatment with the endothelin A receptor (ETAR) antagonist zibotentan and the sodium-glucose co-transporter-2 inhibitor (SGLT2i) dapagliflozin yields a robust and significant reduction in albuminuria in individuals with… read more here.

Keywords: ckd; treatment; dapagliflozin; strategy ... See more keywords

Evidence of L-mode electromagnetic wave pumping of ionospheric plasma near geomagnetic zenith

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recommendations! Published in 2018 at "Annales Geophysicae"

DOI: 10.5194/angeo-36-243-2018

Abstract: Abstract. The response of ionospheric plasma to pumping by powerful HF (high frequency) electromagnetic waves transmitted from the ground into the ionosphere is the strongest in the direction of geomagnetic zenith. We present experimental results… read more here.

Keywords: plasma; zenith; geomagnetic zenith; mode propagation ... See more keywords