Results 31 to 40 of about 84 (42)

Vertical Propagation Characteristics of Multiple Medium‐Scale Traveling Ionospheric Disturbances at Low Latitudes

On the basis of observations from Sanya incoherent scatter radar (SYISR), we investigated the vertical structures of multiple medium‐scale traveling ionospheric disturbances (MSTIDs) over low latitudes on December 28, 2022.
Xinan Yue, Xiaolin Li, Linxuan Zhao, Feng Ding, Yihui Cai, Su Xu, Junyi Wang, Xu Zhou   +7 more
core   +1 more source

Ground-based radar unveils natural electron Bernstein waves in the ionosphere of Earth. [PDF]

Nat Commun
Wang Y, Yue X, Wu Y, Cai Y, Ding F, Vierinen J, Häggström I, Kudeki E, Zhang N, Wang J, Li M, Ning B, Jin L, Wang C.   +13 more
europepmc   +1 more source

The extreme depletion of ionospheric electron density and its hemispheric asymmetry during the May 2024 storm. [PDF]

Natl Sci Rev
Chen Y, Aa E, Yuan T, Zhang S, Shen H, Yue X, Xu H, Liu S, Wang X, Huang W, Li H, Luo B, Zhang Q, Wang C.   +13 more
europepmc   +1 more source

China completes world's largest ground-based network for space weather monitoring. [PDF]

Natl Sci Rev
Xin L.
europepmc   +1 more source

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Initial Ionospheric Ion Line Results and Evaluation by Sanya Incoherent Scatter Radar (SYISR)

Journal of Geophysical Research: Space Physics, 2022
AbstractA new incoherent scatter radar (ISR) has recently been dedicated at Sanya (SYISR), China (geographic 18.34°N and 109.62°E) to detect the low‐latitude ionospheric plasma by conducting continuous operation and electronic beam steering on a pulse‐to‐pulse basis. This paper provides an overview of the processing procedure of SYISR ion line data and
Biqiang Zhao, Feng Ding, Yuyan Jin
exaly   +2 more sources

Calculation and Evaluation of Neutral Winds in the Lower Thermosphere Based on SYISR Observations

Journal of Geophysical Research: Space Physics
AbstractAn algorithm for obtaining ion vector velocities and neutral winds in the lower thermosphere (100–150 km) was applied to the Sanya incoherent scatter radar (SYISR; located at 18.3°N, 109.6°E) for the first time. The observational experiment transmitted alternating code pulses with a code width of 20 μs.
Xu Zhou, Lianhuan Hu, You Yu
exaly   +2 more sources

F Region Neutral Wind and Electric Field Measured by SYISR and Evaluation

Journal of Geophysical Research: Space Physics
AbstractUsing experiments by Sanya (18.3°N, 109.6°E) Incoherent Scatter Radar (SYISR) during 22 days, we first obtained the line‐of‐sight ion velocity in multiple directions, further calculated three‐dimensional vector velocity through least squares fitting, and subsequently derived northward neutral wind and electric fields from 150 to 500 km based on
Feng Ding, Yihui Cai, Mingyuan Li
exaly   +2 more sources

Day-to-Day Variability of Ionospheric Electron Temperature Revealed by High-Resolution SYISR Observations During April–May 2022

Journal of Geophysical Research: Space Physics
AbstractThis study investigated the day‐to‐day variability of ionospheric electron temperature (Te) over Sanya using the newly built Sanya Incoherent Scatter Radar (SYISR; 18.3°N, 109.6°E, dip latitude: 12.8°N). The 24 days of observations with transmitted beams encoded by the alternating code and directed toward the zenith provided Te profiles during ...
Xu Zhou, Jianhui He, Feng Ding
exaly   +2 more sources

Development of the Sanya Incoherent Scatter Radar and Preliminary Results

Journal of Geophysical Research: Space Physics, 2022
Abstract Led by the Institute of Geology and Geophysics, Chinese Academy of Sciences, we have built a brand‐new modular active digital phased array, with all solid‐state transmission and digital receiving incoherent scatter radar (ISR) in Sanya (18.3°N, 109.6°E), a station in low latitude China called Sanya ISR (SYISR) since 2015.
Biqiang Zhao, Feng Ding, Yihui Cai
exaly   +2 more sources

Motion Compensation Method for FAST-SYISR Bistatic SAR Moon Imaging Based on Beetle Antennae Search Algorithm

IGARSS 2025 - 2025 IEEE International Geoscience and Remote Sensing Symposium
Yan Yin, Hongkun Yu, Lijia Huang, Jitong Duan, Xianghua Niu, Chibiao Ding   +5 more
exaly   +2 more sources