Results 81 to 90 of about 2,499 (207)

Observations of quiet-time moderate midlatitude L-band scintillation in association with plasma bubbles [PDF]

, 2017
Observations of moderate night time amplitude scintillation on the GPS L1C/A signal were recorded at the midlatitude station of Nicosia, corresponding geographic latitude and longitude of 35.18˚N and 33.38˚E respectively, on a geomagnetically quiet day ...
BA Carter, BM Ledvina, BM Ledvina, BW Reinisch, BW Reinisch, C Haldoupis, CA Miller, CS Huang, FS Rodrigues, FW Perkins, G Ma, G Wautelet, G Wautelet, GG Bowmen, GS Bust, GW Prölss, H. Haralambous, KJW Lynn, KJW Lynn, L Alfonsi, L Ciraolo, L Kersley, LA Hajkowicz, LA Hajkowicz, LC Gentile, M Aquino, M Fujita, M Mendillo, M. Aquino, PM Kintner, S Basu, S Basu, S Ji, S. Vadakke Veettil, SY Su, T Maruyama, T Ogawa, T Tsugawa, VV Paznukhov, X Pi, Y Otsuka   +40 more
core   +2 more sources

Characterizing Small‐Scale Gravity Waves Generated by Hurricanes Through Convective Generation and Wind Filtering Effects

Earth and Space Science, Volume 13, Issue 3, March 2026.
Abstract Small‐scale gravity waves (GWs) generated by Hurricane Sam (2021), Fiona (2022), and Dora (2023) are studied using COSMIC‐2 GNSS‐radio occultation (RO) temperature retrievals and ERA5 reanalysis data set, from which we categorize three GW types that are commonly observed in the hurricanes studied.
Yuying Wang, Spiros Pagiatakis, Panagiotis Vergados   +2 more
wiley   +1 more source

Assessment of GNSS radio occultation refractivity under heavy precipitation [PDF]

, 2018
Abstract. A positive bias at heights between 3 and 8 km has been observed when comparing the radio occultation retrieved refractivity with that of meteorological analyses and re-analyses, in cases where heavy precipitation is present. The effect of precipitation in RO retrievals has been investigated as a potential cause of the bias, using ...
Ramon Padullés, Estel Cardellach, Kuo-Nung Wang, Chi O. Ao, F. Joseph Turk, Manuel de la Torre-Juárez   +5 more
openaire   +1 more source

Forecast Impact of FORMOSAT‐7/COSMIC‐2 GNSS Radio Occultation Measurements

Atmospheric Science Letters, 2021
The FORMOSAT‐7/COSMIC‐2 GNSS‐RO mission was launched on June 25, 2019, and it has provided a large increase in the number of GNSS‐RO observations available for operational numerical weather prediction (NWP) in the latitude band between ±40°. A key aim of
Benjamin Ruston, Sean Healy
doaj   +1 more source

Global GNSS Observation of Mesoscale Ionospheric Irregularities (2006–2024)

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract Mesoscale ionospheric irregularities are statistically investigated using an unprecedented 19‐year long‐term global GNSS (Global Navigation Satellite System) TEC (total electron content) data set. These irregularities are represented by ionospheric fluctuations within a 5°× ${}^{\circ}\times $ 3.75° ${}^{\circ}$ (latitude by longitude) region ...
Shun‐Rong Zhang, Jing Liu, Anthea J. Coster, Sevag Derghazarian, Philip J. Erickson, Larisa P. Goncharenko, Nestor Aponte, William Rideout   +7 more
wiley   +1 more source

Exploring Earth's atmosphere with radio occultation: contributions to weather, climate and space weather [PDF]

, 2011
The launch of the proof-of-concept mission GPS/MET (Global Positioning System/Meteorology) in 1995 began a revolution in profiling Earth's atmosphere through radio occultation (RO).
R. A. Anthes
core   +1 more source

Global Bottomside Ionospheric Modeling Based on GNSS‐RO Observations From the Tianmu‐1 Constellation

Space Weather, Volume 24, Issue 3, March 2026.
Abstract Radio occultation (RO) observations provide a crucial means for estimating the global Vertical Bottomside Electron Content (VBEC) in the ionosphere. However, the limited number of low Earth orbit (LEO) satellites in existing RO missions restricts the capability for high‐precision reconstruction of global VBEC spatiotemporal variations.
Linghuo Jian, Xiaodong Ren, Yingchuan Yang, Xuan Le, Xiaohong Zhang   +4 more
wiley   +1 more source

Global GNSS Radio Occultation Mission for Meteorology, Ionosphere & Climate [PDF]

, 2010
The GNSS RO mission represents a revolution in atmospheric sounding from space, with precise, accurate, and all-weather global observations useful for weather, climate, and space weather research and operations. The FORMOSAT-3 constellation has been unanimously regarded by the major user community as “the world's most accurate, precise, and stable ...
L., Yen, Nick, Chen-Joe, Fong,, Chung-Huei, Chu,, Jiun-Jih, Miau,, Yuei-An, Liou,, Ying-Hwa, Kuo,   +5 more
openaire   +2 more sources

An Evaluation of Fengyun-3C Radio Occultation Atmospheric Profiles Over 2015–2018

Remote Sensing, 2020
Fengyun-3C (FY-3C) is the first Chinese satellite that is capable of using the Radio Occultation (RO) technique to retrieve atmospheric profiles. This research evaluates the quality of FY-3C RO profiles including refractivity, temperature, and specific ...
Jinde Wei, Ying Li, Kefei Zhang, Mi Liao, Weihua Bai, Congliang Liu, Yan Liu, Xiaoming Wang   +7 more
doaj   +1 more source

Quasi‐4‐Day Waves During the 2018/2019 SSW and Their Coupling to the Ionosphere Based on Whole Atmosphere Data Assimilation

Space Weather, Volume 24, Issue 3, March 2026.
Abstract A strong westward zonal wavenumber‐2 quasi‐4‐day wave (Q4DW) during the 2018/2019 Northern Hemisphere sudden stratospheric warming (SSW) is both captured by Aura Microwave Limb Sounder (MLS) observations and our new whole neutral atmosphere data assimilation system.
Wenxuan Wang, Xiankang Dou, Sheng‐Yang Gu, Yusong Qin, Yuxuan Liu, Hao Chen, Bao Zhang   +6 more
wiley   +1 more source