Results 91 to 100 of about 2,499 (207)

Progress in Turbulence Detection via GNSS Occultation Data [PDF]

, 2012
The increased availability of radio occultation (RO) data offers the ability to detect and study turbulence in the Earth's atmosphere. An analysis of how RO data can be used to determine the strength and location of turbulent regions is presented.
Axelrad, P., Barlow, E., Cornman, L. B., Goodrich, R. K.   +3 more
core   +3 more sources

Analysis on Global Es Layer Response to the May 2024 Geomagnetic Storm Through a Combination of Tianmu‐1 and COSMIC‐2 Radio Occultation Observations

Space Weather, Volume 24, Issue 3, March 2026.
Abstract The sporadic E (Es) layer, a key manifestation of ionosphere‐neutral atmosphere coupling, is highly sensitive to geomagnetic storms. Using more than 25,000 daily radio occultation profiles from the Tianmu‐1 and COSMIC‐2 constellations, this study investigates the global response of the Es layer to the May 2024 storm.
Sheng Guo, Sicheng Wang, Lei Shi, Zheng Sheng, Jia Bu   +4 more
wiley   +1 more source

Meteorological information in GPS-RO reflected signals [PDF]

, 2011
Vertical profiles of the atmosphere can be obtained globally with the radio-occultation technique. However, the lowest layers of the atmosphere are less accurately extracted.
E. Cardellach, J. M. Aparicio, K. Boniface   +2 more
core   +1 more source

Evaluation of COSMIC‐2 Satellite Data for foF2 and hmF2 Against Ground‐Based Ionosondes and the PyIRI (2020) Model Across Middle to Low Latitudes

Space Weather, Volume 24, Issue 2, February 2026.
Abstract This study presents a comprehensive evaluation of COSMIC‐2 satellite‐derived ionospheric peak parameters (foF2 and hmF2) against ground‐based ionosonde observations and a comparative analysis with PyIRI (2020) model estimates across middle to low latitudes for the period 2020–2024.
Ephrem Beshir Seba, Carla Jacobs, Matthieu Melcot, Stefaan Poedts   +3 more
wiley   +1 more source

First Results of Airborne GNSS Radio Occultation Sounding From Airbus Commercial Aircraft

Geophysical Research Letters
The lack of high vertical resolution atmospheric thermodynamic structure observations inside or near major weather events impedes our understanding of physical processes and their predictability in numerical weather prediction (NWP) models.
Feiqin Xie, Kevin J. Nelson, Bryan C. Chan, Ashish Goel, Jonathan Kosh, Mike Vergalla   +5 more
doaj   +1 more source

Tutorial on GNSS Polarimetric Radio Occultations (GNSS PRO)

, 2020
Talk delivered in 1st Paz Polarimetric Radio Occultations User Workshop, 23 April 2020 45 minute tutorial to explain the basics of the GNSS polarimetric radio occultation.
Cardellach, Estel, Padullés, Ramon, Ao, Chi On, Turk, F. Joe, Torre-Juárez, Manuel de la   +4 more
openaire   +1 more source

Climate Absolute Radiance and Refractivity Observatory (CLARREO) [PDF]

, 2015
The Climate Absolute Radiance and Refractivity Observatory (CLARREO) is a mission, led and developed by NASA, that will measure a variety of climate variables with an unprecedented accuracy to quantify and attribute climate change.
Leckey, John P.
core   +3 more sources

Algorithm Theoretical Basis for Version 3 TEMPO Level 0–1 Processor

Earth and Space Science, Volume 13, Issue 2, February 2026.
Abstract The Tropospheric Emissions: Monitoring of Pollution (TEMPO) instrument is the first spaceborne hyperspectral spectrometer that measures backscattered sunlight over North America in a geostationary orbit. The two charge‐coupled device (CCD) detectors of TEMPO, with spectral coverages of 293–494 and 538–741 nm and resolutions of 0.53–0.63 nm ...
Heesung Chong, Xiong Liu, John Houck, David E. Flittner, James Carr, Weizhen Hou, John E. Davis, Raid M. Suleiman, Kelly Chance, Nischal Mishra, Christopher Chan Miller, Gonzalo González Abad, Brian Baker, James Lasnik, Dennis Nicks, Juseon Bak, Caroline R. Nowlan, Huiqun Wang, Junsung Park, Jean Fitzmaurice, Laurel Carpenter   +20 more
wiley   +1 more source

Analysis of GPS radio occultation data from the FORMOSAT-3/COSMIC and Metop/GRAS missions at CDAAC [PDF]

, 2011
This study investigates the noise level and mission-to-mission stability of Global Positioning System (GPS) radio occultation (RO) neutral atmospheric bending angle data at the UCAR COSMIC Data Analysis and Archive Center (CDAAC).
C. Rocken, D. Hunt, S. Sokolovskiy, W. Schreiner, Y.-H. Kuo   +4 more
core   +1 more source

The Ionospheric Lunar Tidal Response to the 2020–2021 Sudden Stratospheric Warming Observed by COSMIC‐2, ICON and Modeled by SD‐WACCMX, TIE‐GCM

Journal of Geophysical Research: Space Physics, Volume 131, Issue 2, February 2026.
Abstract This study examines how the breakdown of the stratospheric polar vortex influences lunar semidiurnal (M2) tides in F‐region electron density using Global Ionospheric Specification (GIS) data from the Constellation Observing System for Meteorology, Ionosphere, and Climate‐2 (COSMIC‐2).
Deepali Aggarwal, Sunil Kumar, B. C. Martinez, Nicholas Pedatella, Xian Lu, Jens Oberheide   +5 more
wiley   +1 more source