Results 91 to 100 of about 426 (165)

One‐Dimensional Variational Ionospheric Retrieval Using Radio Occultation Bending Angles: 1. Theory

Space Weather
A 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, S. B. Healy, S. Elvidge   +2 more
doaj   +1 more source

Estimativa e análise de perfis de densidade de elétrons para a região brasileira: integração de informações provenientes de rádio ocultação e de estações terrestres GNSS

Revista Cartográfica
A rádio ocultação (RO) é utilizada há mais de seis décadas para a sondagem da atmosfera de outros planetas. O advento dos Sistemas Globais de Navegação por Satélite (GNSS) e das missões com satélites de baixa órbita, permitiram novas possibilidades de ...
Gabriel Oliveira Jerez, Daniele Barroca Marra Alves, Manuel Hernández-Pajares, João Francisco Galera Monico   +3 more
doaj   +1 more source

Prospects for meteotsunami detection in earth's atmosphere using GNSS observations. [PDF]

GPS Solut, 2023
Vergados P, Krishnamoorthy S, Martire L, Mrak S, Komjáthy A, Morton YTJ, Vilibić I.   +6 more
europepmc   +1 more source

Processing Multiple GNSS RO Data Using FSI and ROPP: Results from the ROMEX

Abstract. Global Navigation Satellite System (GNSS) Radio Occultation (RO) is a vital technique in atmospheric remote sensing, providing all-weather, high-resolution vertical observations that support numerical weather prediction (NWP) and atmospheric research. To enhance understanding of GNSS RO processing uncertainties and inter-algorithm consistency,
Yong Chen, Xinjia Zhou, Xin Jing, Shu-Peng Ho, Xi Shao, Tung-Chang Liu   +5 more
openaire   +1 more source

Overview of Space-Capable Global Navigation Satellite Systems Receivers: Heritage, Status and the Trend towards Miniaturization. [PDF]

Sensors (Basel), 2023
Gill E, Morton J, Axelrad P, Akos DM, Centrella M, Speretta S.   +5 more
europepmc   +1 more source

Resolving the 21st century temperature trends of the upper troposphere-lower stratosphere with satellite observations. [PDF]

Sci Rep, 2023
Ladstädter F, Steiner AK, Gleisner H.
europepmc   +1 more source

A new model for estimating atmospheric weighted mean temperature from radiosonde and multi-mission GNSS radio occultation data

Geodesy and Geodynamics
In Global Navigation Satellite System (GNSS) meteorology, the atmospheric weighted mean temperature (Tm) is a critical intermediate parameter for converting zenith wet delay (ZWD) to precipitable water vapor (PWV), essential for accurate atmospheric ...
Arash Tayfehrostami, Yazdan Amerian
doaj   +1 more source

Assessment of ZTD Derived from COSMIC Occultation Data with ECWMF, Radiosondes, and GNSS. [PDF]

Sensors (Basel), 2022
Fu N, Jiang M, Li F, Guo P, Hou C, Wu M, Wu J, Wang Z, Kan L.   +8 more
europepmc   +1 more source

Assimilating Tianmu‐1 RO Data From a 23‐Satellite Constellation to Enhance the Track Forecasts of Typhoon Gaemi (2024)

Geophysical Research Letters
Tianmu‐1 commercial 23‐satellite constellation provides over 30,000 daily Global Navigation Satellite System (GNSS) Radio Occultation (RO) profiles, significantly expanding atmospheric profiling observations.
S. Yang, X. Zou
doaj   +1 more source

Combined model of topside ionosphere and plasmasphere derived from radio-occultation and Van Allen Probes data. [PDF]

Sci Rep, 2022
Prol FS, Smirnov AG, Hoque MM, Shprits YY.   +3 more
europepmc   +1 more source