Results 321 to 330 of about 21,650,361 (340)

COSMIC-2 / FORMOSAT-7: The future of global weather monitoring and prediction

2015 IEEE Aerospace Conference, 2015
COSMIC-2/FORMOSAT-7 is a satellite program designed to deliver next-generation global navigation satellite system (GNSS) radio occultation (RO) data to users around the world.
K. Cook, C. Fong, M. Wenkel, P. Wilczynski, N. Yen, G. Chang   +5 more
semanticscholar   +3 more sources

Assessing antenna field of view and receiver clocks of COSMIC and GRACE satellites: lessons for COSMIC-2 [PDF]

GPS Solutions, 2014
We provide suggestions for the approved COSMIC-2 satellite mission regarding the field of view (FOV) and the clock stability of its future GNSS receiver based on numerical analyses using COSMIC GPS data. While the GRACE GPS receiver is mounted on the zenith direction, the precise orbit determination (POD) antennas of COSMIC are not.
T. Tseng, Kefei Zhang, C. Hwang, U. Hugentobler, Chuan-Sheng Wang, S. Choy, Yi-Shan Li   +6 more
semanticscholar   +2 more sources

A comparison of temperature and relative humidity measurements derived from COSMIC-2 radio occultations with radiosonde observations made over the Asian summer monsoon region

Remote Sensing Letters, 2022
The newly launched FORMOSAT-7/COSMIC-2 (Formosa Satellite Mission-7 and Constellation Observing System for Meteorology, Ionosphere, and Climate-2), has an equatorial constellation of six satellites carrying advanced radio occultation receivers, providing
V. Veenus, S. Das, Bukya Sama, K. N. Uma
semanticscholar   +1 more source

Analysis of COSMIC-2 Atmospheric Boundary Layer Detection Ability

2021
Using Global Navigation Satellite System (GNSS) radio occultation technology to detect atmospheric boundary layer height (ABLH) accurately has always been a difficult point in the field of satellite navigation research. Moreover, atmospheric boundary layer is a key parameter when studying climatology.
Zhen Zhang, Tianhe Xu, Fan Gao, Song Li, Shuaimin Wang   +4 more
openaire   +2 more sources

Assessment of COSMIC-2 reduced-dynamic and kinematic orbit determination

2021
<p>The Constellation Observing System for Meteorology, Ionosphere, and Climate 2 (COSMIC-2) mission was launched on June 25, 2019 into six evenly spaced circular orbital planes of 24° inclination with initial altitudes of 725 km.
Adrian Jaeggi, Daniel Arnold, Jan Weiss, Doug Hunt   +3 more
openaire   +2 more sources

Extreme Positive Ionosphere Storm Triggered by a Minor Magnetic Storm in Deep Solar Minimum Revealed by FORMOSAT‐7/COSMIC‐2 and GNSS Observations

Journal of Geophysical Research: Space Physics, 2021
This study examines an unexpected and extreme positive ionospheric response to a minor magnetic storm on August 5, 2019 by using global ionosphere specification (GIS) 3D electron density profiles obtained by assimilating radio occultation total electron ...
P. Rajesh, C. Lin, C. Lin, C. Chen, J. Liu, T. Matsuo, S. P. Chen, W. Yeh, C. Y. Huang   +8 more
semanticscholar   +1 more source

COSMIC-2 / FORMOSAT-7: The enduring program

2014 IEEE Aerospace Conference, 2014
The COSMIC-2/FORMOSAT-7 Program has persevered through unusual budgetary ups and downs since the United States and Taiwan jointly agreed to pursue the mission in 2010. Despite these governmental challenges, the Program continues to make progress.
Peter Wilczynski, Nick Yen, Kendra L. B. Cook, Chen-Joe Fong, G.S. Chang, Michael J. Wenkel   +5 more
openaire   +2 more sources

Equatorial Ionospheric Irregularities Observed by COSMIC 2 and GOLD Missions

2021
<p>Equatorial ionospheric irregularities is an important space weather phenomenon, which can disrupt GNSS and communication systems. COSMIC 2 GNSS RO observations are affected via scintillations in signal amplitudes and phases. At the same time, we can use these scintillations to monitor and geolocate the ionospheric irregularities, which
Qian Wu, John Braun, William Schreiner, Sergey Sokolovskiy, Iurii Cherniak, Irina Zakharenkova, Nick Pedatella, Min-yang Chou, Doug Hunt   +8 more
openaire   +2 more sources

Processing and Validation of FORMOSAT‐7/COSMIC‐2 GPS Total Electron Content Observations

Radio Science, 2021
Slant absolute total electron content (TEC) is observed by the Formosa Satellite‐7/Constellation Observing System for Meteorology, Ionosphere, and Climate‐2 (FORMOSAT‐7/COSMIC‐2, F7/C2) Tri‐GNSS Radio Occultation System (TGRS) instrument.
N. Pedatella, I. Zakharenkova, J. Braun, I. Cherniak, D. Hunt, W. Schreiner, P. Straus, B. L. Valant‐Weiss, T. Vanhove, J. Weiss, Q. Wu   +10 more
semanticscholar   +1 more source

The Early Results and Validation of FORMOSAT‐7/COSMIC‐2 Space Weather Products: Global Ionospheric Specification and Ne‐Aided Abel Electron Density Profile

Journal of Geophysical Research: Space Physics, 2020
The FORMOSAT‐7/COSMIC‐2 (F7/C2) satellite mission was launched on 25 June 2019 with six low‐Earth‐orbit satellites and can provide thousands of daily radio occultation (RO) soundings in the low‐latitude and midlatitude regions.
Chi‐Yen Lin, C. Lin, Jann‐Yenq Liu, P. Rajesh, T. Matsuo, M. Chou, H. Tsai, W. Yeh   +7 more
semanticscholar   +1 more source