[HTML][HTML] A review of the SCOSTEP's 5-year scientific program VarSITI—Variability of the Sun and Its Terrestrial Impact
K Shiokawa, K Georgieva - Progress in Earth and Planetary Science, 2021 - Springer
The Sun is a variable active-dynamo star, emitting radiation in all wavelengths and solar-
wind plasma to the interplanetary space. The Earth is immersed in this radiation and solar …
wind plasma to the interplanetary space. The Earth is immersed in this radiation and solar …
First zonal drift velocity measurement of equatorial plasma bubbles (EPBs) from a geostationary orbit using GOLD data
DK Karan, RE Daniell, SL England… - Journal of …, 2020 - Wiley Online Library
Abstract The National Aeronautics and Space Administration (NASA) Global‐scale
Observations of the Limb and Disk (GOLD) satellite takes far‐ultraviolet images of the Earth …
Observations of the Limb and Disk (GOLD) satellite takes far‐ultraviolet images of the Earth …
GOLD mission's observation about the geomagnetic storm effects on the nighttime equatorial ionization anomaly (EIA) and equatorial plasma bubbles (EPB) during a …
DK Karan, RW Eastes, RE Daniell, CR Martinis… - Space …, 2023 - Wiley Online Library
The nighttime ionospheric response to a geomagnetic storm that occurred on 23–29
September 2020 is investigated over the South American, Atlantic, and West African …
September 2020 is investigated over the South American, Atlantic, and West African …
CDAP: A portable CCD-based daytime airglow photometer for investigations of ionosphere-thermosphere phenomena
D Pallamraju, P Suryawanshi, S Urmalia… - Journal of Atmospheric …, 2023 - Elsevier
A photometric technique to obtain daytime optical airglow emissions is described. Airglow
emissions occur naturally due to photochemical and chemiluminescent processes taking …
emissions occur naturally due to photochemical and chemiluminescent processes taking …
Effect of geomagnetic storms on the daytime low-latitude thermospheric wave dynamics
DK Karan, D Pallamraju - Journal of Atmospheric and Solar-Terrestrial …, 2018 - Elsevier
The equatorial-and low-latitude thermospheric dynamics is affected by both equatorial
electrodynamics and neutral wave dynamics, the relative variation of which is dependent on …
electrodynamics and neutral wave dynamics, the relative variation of which is dependent on …
GOLD observations of longitudinal variations in the nighttime equatorial ionization anomaly (EIA) crests' latitudes
RW Eastes, DK Karan, C Martinis… - Journal of …, 2023 - Wiley Online Library
Each day the Global‐scale Observations of the Limb and Disk imager observes the
equatorial ionization anomaly (EIA) near sunset from∼ 10° E to∼ 80° W geographic …
equatorial ionization anomaly (EIA) near sunset from∼ 10° E to∼ 80° W geographic …
On the latitudinal variation in OI 630.0 nm dayglow emissions in response to the equatorial electrodynamic processes and neutral winds
S Kumar, D Pallamraju, P Suryawanshi… - Advances in Space …, 2022 - Elsevier
Earth's upper atmosphere over low latitudes is influenced by the equatorial electrodynamics.
Its influence can also be modulated by the thermospheric winds. The effect of these two …
Its influence can also be modulated by the thermospheric winds. The effect of these two …
Vertical Propagation Speeds of Gravity Waves in the Daytime as a Precursor to the Onset of the Equatorial Spread‐F
S Mandal, D Pallamraju, TK Pant - Journal of Geophysical …, 2022 - Wiley Online Library
The equatorial spread‐F (ESF) refers to the spread observed in return echoes of ionograms.
Such spread in reflected echoes is found both in range and frequency, which can last for a …
Such spread in reflected echoes is found both in range and frequency, which can last for a …
Small‐scale longitudinal variations in the daytime equatorial thermospheric wave dynamics as inferred from oxygen dayglow emissions
DK Karan, D Pallamraju - Journal of Geophysical Research …, 2017 - Wiley Online Library
The equatorial upper atmospheric dynamic processes show both latitudinal and longitudinal
variabilities. While the variability in latitudes can exist over small distances (approximately …
variabilities. While the variability in latitudes can exist over small distances (approximately …
GOLD observations of equatorial plasma bubbles reaching mid‐latitudes during the 23 April 2023 geomagnetic storm
DK Karan, CR Martinis, RW Eastes, RE Daniell… - Space …, 2024 - Wiley Online Library
A coronal mass ejection erupted from the Sun on 21 April 2023 and created a G4
geomagnetic storm on 23 April. NASA's global‐scale observations of the limb and disk …
geomagnetic storm on 23 April. NASA's global‐scale observations of the limb and disk …