Stability of CubeSat Clocks and Their Impacts on GNSS Radio Occultation [PDF]
Remote Sensing, 2022 Global Navigation Satellite Systems’ radio occultation (GNSS-RO) provides the upper troposphere-lower stratosphere (UTLS) vertical atmospheric profiles that are complementing radiosonde and reanalysis data. Such data are employed in the numerical weather
Amir Allahvirdi-Zadeh +4 more
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The potential of observing atmospheric rivers with Global Navigation Satellite System (GNSS) radio occultation [PDF]
Atmospheric Measurement TechniquesAtmospheric rivers (ARs) are comparatively narrow regions in the atmosphere that are responsible for most of the horizontal transport of water vapor in the extratropics, which are responsible for many extreme precipitation events and flooding at ...
B. Rahimi, U. Foelsche, U. Foelsche
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Quality assessment of YUNYAO radio occultation data in the neutral atmosphere [PDF]
Atmospheric Measurement TechniquesGlobal Navigation Satellite System (GNSS) radio occultation (RO) data are an important component of numerical weather prediction (NWP) systems. To incorporate more GNSS-RO data into NWP systems, commercial RO data have become an excellent option. Tianjin
X. Xu +9 more
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GNSS-RO Deep Refraction Signals from Moist Marine Atmospheric Boundary Layer (MABL) [PDF]
Atmosphere, 2022 The marine atmospheric boundary layer (MABL) has a profound impact on sensible heat and moisture exchanges between the surface and the free troposphere. The goal of this study is to develop an alternative technique for retrieving MABL-specific humidity (q) using GNSS-RO data in deep-refracted signals. The GNSS-RO signal amplitude (i.e., signal-to-noise
Dong L. Wu, Jie Gong, Manisha Ganeshan
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Effect of GNSS RO on prediction of the 2021 Henan Rainstorm [PDF]
, 2022 Abstract Precise prediction of the extremely heavy rainstorm is still challenging due to less or low spatial-temporal measurements. Nowadays, space-borne Global Navigation Satellite System (GNSS) radio occultation (RO) provides high spatial-resolution atmospheric parameters, which may improve the prediction precision of heavy rainfalls. In this
Yu Wang, Shuanggen Jin
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One‐Dimensional Variational Ionospheric Retrieval Using Radio Occultation Bending Angles: 1. Theory [PDF]
Space WeatherA new one‐dimensional variational (1D‐Var) retrieval method for ionospheric GNSS radio occultation (GNSS‐RO) measurements is described. The forward model implicit in the retrieval calculates the bending angles produced by a one‐dimensional ionospheric ...
I. D. Culverwell +2 more
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Atmospheric GNSS RO 1D-Var in Use at UCAR: Description and Validation [PDF]
Remote Sensing, 2022 This paper describes, along with some validation results, the one-dimensional variational method (1D-Var) that is in use at the University Corporation for Atmospheric Research (UCAR) to retrieve atmospheric profiles of temperature, pressure, and humidity from the observation of the Global Navigation Satellite System (GNSS) radio occultation (RO).
Tae‐Kwon Wee +4 more
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GNSS-RO Refractivity Bias Correction Under Ducting Layer Using Surface-Reflection Signal [PDF]
Remote Sensing, 2020 Due to its high vertical resolution and cloud-penetrating capability, GNSS-Radio Occultation (RO) remote sensing technique has been utilized to observe the vertical structure of the Planetary Boundary Layer (PBL) in recent years. However, the critical refraction, or ducting, caused by large refractivity gradients usually associated with the top of the ...
Kuo-Nung Wang +2 more
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Identifikasi Perambatan Gelombang Kelvin pada Fluktuasi Parameter Atmosfer di Wilayah Padang, Jakarta dan Pontianak Menggunakan Data Radiosonde dan GNSS-RO [PDF]
Analisis pergerakan gelombang Kelvin pada fluktuasi parameter atmosfer dilakukan dengan memanfaatkan data pengamatan vertikal atmosfer dari radiosonde dan GNSS-RO.
Reza Afrilia Putri Haryandi +5 more
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