Results 11 to 20 of about 178 (93)

Registering upper atmosphere parameters in East Siberia with Fabry–Perot Interferometer KEO Scientific “Arinae” [PDF]

Solar-Terrestrial Physics, 2017
We describe the Fabry—Perot interfero-meter designed to study Earth’s upper atmosphere. We propose a modification of the existing data processing method for determining the Doppler shift and Doppler widening and also for separating the observed line ...
Vasilyev R.V., Artamonov M.F., Beletsky A.B., Zherebtsov G.A., Medvedeva I.V., Mikhalev A.V., Syrenova T.E.   +6 more
doaj   +5 more sources

Atmospheric Chemistry Experiment (ACE) v.5.3 winds: validation and model comparisons [PDF]

Atmospheric Measurement Techniques
The Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS) uses limb geometry to measure transmittance spectra of Earth's atmosphere by solar occultation.
M. Wyatt, P. F. Bernath, P. F. Bernath, P. F. Bernath, C. Boone, L. Lavy, R. Johnson   +6 more
doaj   +2 more sources

Analysis of Ionospheric Disturbances Near 120°E in the Asia‐Pacific Sector During the May 2024 Superstorm Using Multi‐Instrument Observations

Space Weather
On 10 May 2024, a severe G5 geomagnetic storm—the most intense of solar cycle 25—significantly disturbed the global ionosphere. This study presents a comprehensive analysis using multi‐instrument observations, including ground‐based measurements from BDS‐
Yue Sun, Jun Tang, Hanyang Teng, Chaoqian Xu, Liang Zhang   +4 more
doaj   +2 more sources

Climatology of thermospheric neutral winds over Oukaïmeden Observatory in Morocco [PDF]

Annales Geophysicae, 2017
In order to explore coupling between the thermosphere and ionosphere and to address the lack of data relating to thermospheric neutral winds and temperatures over the African sector, a new system of instruments was installed at the Oukaïmeden ...
M. Kaab, Z. Benkhaldoun, D. J. Fisher, B. Harding, A. Bounhir, J. J. Makela, A. Laghriyeb, K. Malki, A. Daassou, M. Lazrek   +9 more
doaj   +2 more sources

Climatological Investigation of Ionospheric Es Layer Based on Occultation Data

Remote Sensing
Sporadic E (Es) layers are irregular structures that occur at the E-layer height of the ionosphere, significantly affecting the reliability and accuracy of wireless communications, navigation, and satellite remote sensing.
Haibing Ruan, Xiuwen Qiu, Xin Guo, Xiangxue Wang, Xin Zhang   +4 more
doaj   +2 more sources

Nocturnal Temperature and Wind Structures of the Mesosphere and Lower Thermosphere Region Over Yuzhong (36°N, 104.2°E) Based on Sodium Lidar Observation

Space Weather
We present an analysis of thermal and dynamical structures in the mesopause and lower thermosphere (MLT) region (82–106 km) using ∼1,870 hr of sodium (Na) lidar observations at Yuzhong (36.0°N, 104.2°E) from March 2023 to May 2025.
Linmei Liu, Yuan Xia, Yong Yang, Xuewu Cheng, Xin Lin, Kaijie Ji, Wei Wang, Jiaming Liang, Jinzhou Zheng, Guotao Yang, Faquan Li   +10 more
doaj   +2 more sources

AIM CIPS PMC tracking wind product retrieval approach and first assessment [PDF]

, 2020
The refined Cloud Imaging and Particle-Size (CIPS) cloud wind tracking algorithm is elaborated and the wind product is assessed against the Navy Operational Global Atmospheric Prediction System - Advanced Level Physics and High Altitude (NOGAPS-ALPHA ...
Randall, CE, Lumpe, JD, Rong, PP, Yue, J, Russell, JM, Siskind, DE   +5 more
core   +2 more sources

Neutral winds and tides over South Africa [PDF]

, 2022
This thesis presents the first results of a climatology of nighttime thermospheric neutral winds between February 2018 and January 2019 measured by a Fabry-Perot interferometer (FPI) in Sutherland, South Africa (32.2°S, 20.48°E; geomagnetic latitude: 40 ...
Ojo, Taiwo Theophilus, null null, Taiwo Theophilus Ojo   +2 more
core   +1 more source

gemini3d/gemini3d: CMake >= 3.13 compatible

, 2021
allow CMake >= 3.13. CMake >= 3.17 + Ninja recommended for speed + stability add hwm14 stub and test add MPI fortran config ...
guygrubbs, Michael Hirsch, Jeff Klenzing, Pavel Inchin, Matthew D. Zettergren   +4 more
core   +1 more source

Characterization of Gravity Waves in Three Dimensions in the Daytime Thermosphere Using Combined Optical and Radio Measurements and Estimation of Horizontal Neutral Winds [PDF]

, 2023
Gravity waves, which are considered omnipresent in the Earth's upper atmosphere, are generally investigated by monitoring the fluctuations in different atmospheric parameters. Here, we report the propagation characteristics of thermospheric gravity waves
Mandal, Subir, Subir Mandal, Kumar, Sunil, Pallamraju, Duggirala, Duggirala Pallamraju, Sunil Kumar   +5 more
core   +1 more source