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Real-Time Three-Dimensional Pedestrian Localization System Using Smartphones. [PDF]

Sensors (Basel)
Shin B, Kim T, Lee T.
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GNSS-RO Sounding in the Troposphere and Stratosphere

2022
The use of Global Navigation Satellite System Radio Occultations (GNSS-RO) for vertical sounding of temperature and moisture in the atmospheric column has become a standard practice of many numerical weather prediction (NWP) centers. The introduction of this observation has seen broad positive impact on analyses and forecasts.
Benjamin Ruston, Neill Bowler, Sean Healy, Hui Shao   +3 more
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Ionospheric Scintillation Anomalies Associated with the 2021 La Palma Volcanic Eruption Detected with Gnss-R and Gnss-Ro Observations

IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium, 2022
was supported by the Spanish Ministry of Science, Innovation and Universities and EFRD, ”Sensing with Pioneering Opportunistic Techniques” SPOT, grant RTI2018-099008- BC21/AEI/10.13039/501100011033, and by the Unidad de Excelencia Maria de Maeztu MDM-2016-0600.
Molina Ordóñez, Carlos, Boudriki Semlali, Badr Eddine, González Casado, Guillermo, Hyuk, Park, Camps Carmona, Adriano José   +4 more
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Ionospheric Sounding Using GNSS-RO

2013
The GNSS signal will be bent from GNSS transmitters and LEO satellites when the signal goes through Earth’s ionosphere. With the improvement of GNSS-RO technique and more GNSS-RO missions, ionospheric parameters can be retrieved, including TEC and ionospheric electron density.
Shuanggen Jin, Estel Cardellach, Feiqin Xie   +2 more
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Atmospheric Sensing Using GNSS RO

2013
In this chapter, the basic methodology to derive the geophysical parameters from GNSS RO refractivity will be explored in Sect. 6.1. In the following Sect. 6.2, the detailed characteristics of RO observables will be studied. The science application utilizing such RO derived geophysical parameters, spanning from atmospheric dynamic process to weather ...
Shuanggen Jin, Estel Cardellach, Feiqin Xie   +2 more
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Development of GNSS-RO and EDTP sensors onboard microsatellite for ionosphere monitoring

2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2015
Chiba University develops two microsatellites called GAIA-I and GAIA-II. GAIA-I payload is GNSS Radio Occultation (RO) sensor and Electron Density — Temperature Probe (EDTP) for Ionosphere monitoring, and GAIA-II payload is Circularly Polarized Synthetic Aperture Radar (CP-SAR) for global land deformation monitoring.
Josaphat Tetuko Sri Sumantyo, Nobuyoshi Imura   +1 more
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A multi-center exercise on the sensitivity of PAZ GNSS Polarimetric RO for NWP modeling

2023
A better understanding of the thermodynamics of heavy precipitation events is necessary towards improving weather and climate models and quantifying the impact of climate variability on precipitation. However, there are limited observations available to assess the thermodynamics model structure within heavy precipitation conditions.In 2009, the Earth ...
Ramon Padullés, Estel Cardellach, Antía Paz, F. Joe Turk, Chi O. Ao, Kuo Nung Wang, Manuel de la Torre Juárez, Michael J. Murphy, Jennifer S. Haase, Katrin Lonitz, Daisuke Hotta   +10 more
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Revised GNSS‐RO observation uncertainties in the Met Office NWP system

Quarterly Journal of the Royal Meteorological Society, 2020
AbstractThe diagnostics of Desroziers et al. have been used to estimate the uncertainties of Global Navigation Satellite System Radio Occultation (GNSS‐RO) observations. Compared with the uncertainties that are currently operational, the new uncertainties are smaller and vary with height, latitude, satellite identifier, and other variables. The initial
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Polarimetric GNSS RO aboard the PAZ satellite

2021
Talk delivered in Informal Seminar UK MetOffice in Great Britain, 21 February 2020 ,
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The diurnal cycle of gravity waves in GNSS-RO data

Gravity wave sources such as convection are known to have a diurnal cycle, so it is expected that gravity waves should also follow a diurnal cycle. However, although this cycle can be simulated in models and observed in ground based data at fixed locations, it is difficult to observe in global satellite observations, due to their low time resolution ...
Emily Lear, Corwin Wright, Neil Hindley
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