Results 71 to 80 of about 1,121 (191)

Attributing Upper‐Tropospheric Warm Biases in CMIP6 Models to Ice Cloud‐Radiation Interaction Deficiencies Over Tropical Oceans

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract We assess the impact of hydrometeor radiative effects on tropical and subtropical Pacific air temperature anomalies (TAA) using Coupled Model Intercomparison Project Phase 6 (CMIP6) model simulations and satellite data. CMIP6 models are grouped by their treatment of frozen hydrometeors: SON2 (explicit cloud and falling ice), SON1 (simplified),
J.‐L. F. Li, Wei‐Liang Lee, Kuan‐Man Xu, J. H. Jiang, Yi‐Hui Wang, Yu‐Cian Tsai, S‐P. Ho, Qing Yue, Graeme Stephens, Jia‐Yuh Yu, Huiwen Chuang   +10 more
wiley   +1 more source

Climatic Higher‐Order Balanced Winds Beyond Geostrophic and Gradient Wind Fields

Earth and Space Science, Volume 13, Issue 5, May 2026.
Abstract We present a novel approach to derive three‐dimensional Climatic Higher‐Order Balanced (CHOB) wind fields from thermodynamic state variables in the free troposphere and stratosphere. The CHOB method is developed for monthly synoptic‐scale wind field estimation, utilizing commonly used balanced winds (geostrophic and gradient wind) enhanced by ...
I. Nimac, J. Unegg, J. Danzer
wiley   +1 more source

The FengYun-3C radio occultation sounder GNOS: a review of the mission and its early results and science applications [PDF]

Atmospheric Measurement Techniques, 2018
The Global Navigation Satellite System (GNSS) Occultation Sounder (GNOS) is one of the new-generation payloads on board the Chinese FengYun 3 (FY-3) series of operational meteorological satellites for sounding the Earth's neutral atmosphere and ...
Y. Sun, Y. Sun, Y. Sun, W. Bai, W. Bai, W. Bai, C. Liu, C. Liu, Y. Liu, Q. Du, Q. Du, Q. Du, X. Wang, X. Wang, G. Yang, M. Liao, Z. Yang, X. Zhang, X. Meng, X. Meng, D. Zhao, D. Zhao, J. Xia, J. Xia, Y. Cai, Y. Cai, G. Kirchengast, G. Kirchengast, G. Kirchengast   +28 more
doaj   +1 more source

Estimation of dusk time F-region electron density vertical profiles using LSTM neural networks: A preliminary investigation

Artificial Intelligence in Geosciences, 2023
The vertical profile of the ionosphere density plays a significant role in the development of low-latitude Equatorial Plasma Bubbles (EPBs), that in turn lead to ionospheric scintillation which can severely degrade precision and availability of critical ...
Lucas Alves Salles, Paulo Renato Pereira Silva, Guilherme Schwinn Fagundes, Jonas Sousasantos, Alison Moraes   +4 more
doaj   +1 more source

Relative Contributions of Lower‐Atmosphere Tidal and Solar‐Magnetospheric Forcings to the Day‐to‐Day Variability of F‐Region Electron Density

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract We use Thermosphere Ionosphere Electrodynamics General Circulation Model simulations nudged to realistic tides and their statistical day‐to‐day variabilities (DTDVs), derived from Michelson Interferometer for Global High‐Resolution Thermospheric Imaging/Ionospheric Connection Explorer observations, to estimate the relative importance of tidal ...
Xian Lu, Jens Oberheide, Deepali Aggarwal   +2 more
wiley   +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

Outcome of the working group on Polarimetric Radio Occultations during the 2nd PAZ Workshop and IROWG-10, November 2024 [PDF]

Working Group Conclusions and Recommendations.The aim of this document is to identify the required steps towards full exploitation of the GNSS polarimetric radio occultation data and technique, and to share it with potential interested agencies and ...
Padullés, Ramon, Chen, Shu-Ya, Braun, John, Torre Juárez, Manuel de la, Talpe, Matthieu, Turk, F. Joseph, Kursinski, E. Robert, Aparicio, Josep M., Cardellach, Estel, Brandmeyer, Jonathan, Kuo, Ying-Hwa, Nguyen, V., Kubar, Terry, Ao, Chi On, Murphy, Michael, Wang, Kuo-Nung, Cucurull, Lidia, Xie, Feiqin   +17 more
core   +1 more source

Detection of Equatorial Plasma Bubbles Using the COSMIC‐2 Rate of TEC Index

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract Equatorial plasma bubbles (EPBs) are large‐scale plasma depletion structures that can disrupt Global Navigation Satellite Systems (GNSS) and other space‐based technologies. Several instruments have been employed to study EPB dynamics, with Total Electron Content (TEC) and Rate of TEC change Index (ROTI) data standing out as valuable parameters
Ana L. Christovam, Fabricio S. Prol, Marcio T. A. H. Muella   +2 more
wiley   +1 more source

Tomographic Imaging of Ionospheric Plasma Bubbles Based on GNSS and Radio Occultation Measurements [PDF]

Remote Sensing, 2018
Total electron content measurements given by the global navigation satellite system (GNSS) have successfully presented results to capture the signatures of equatorial plasma bubbles. In contrast, the correct reproduction of plasma depletions at electron density level is still a relevant challenge for ionospheric tomographic imaging.
Fabricio dos Santos Prol, Manuel Hernández-Pajares, Marcio Tadeu de Assis Honorato Muella, Paulo de Oliveira Camargo   +3 more
openaire   +4 more sources

Analyses for a Modernized GNSS Radio Occultation Receiver

, 2015
Global Navigation Satellite System (GNSS) radio occultation (RO) is a remote sensing technique that exploits existing navigation signals to make global, real-time observations of the Earth's atmosphere.
Griggs, Erin R., Griggs, Erin Rose
core   +1 more source